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  • $145 hourly
    I have 9+ years of Swift and 12+ years of Objective-C experience. I've worked as an engineering lead for the past 8 years as both a contractor and full time employee. In 2018 I published my first book on Swift Playgrounds titled "Simulations in Swift", which has was picked up by Apress. I write articles for the popular Ray Wenderlich/Kodeco website on Server Side Swift, run a YouTube channel teaching Swift development and mentor at a local university. I am the author of several popular Swift libraries including FaceAware and SimpleCheckbox. I write clean, and well tested code for highly polished projects, but also know when to hack things together for quick prototypes and proof of concepts. I've built apps for iOS, Mac, Apple TV, Apple Watch, and I even have significant Server Side (Vapor) experience as well as programming and integrating with embedded systems. If you're looking for a high quality product, with a slick user interface, smooth animations, and is easy for future devs to maintain, choose me!
    Featured Skill Bluetooth
    Core Bluetooth
    Arduino Firmware
    Embedded System
    Arduino
    ESP32
    Python
    iOS Development
    macOS
    Swift
    Apple Watch
    iOS
    iPad App Development
    Apple TV Application
    Objective-C
  • $15 hourly
    Over the last 14 years, I have almost completed 42 android projects for different businesses and personal use of my clients. Great experience in Java, Kotlin , Jetpack Compose, Dagger HILT and other architectural component, View Based Systems, Android SDK, Google's Android related service and Android Studio. I always welcome new ideas and love to convert them in smart android application. During different applications development period I have gone through many different challenges and finish all of them with my smart work. I have been work in all below area and also willing to explore more with new things. Material Design with backward compatibility, Jetpack Compose, Navigation Component, Dagger HILT, Paging 2 and Paging 3, SQL/SQLite databases, JSON Bese data parsing, RestFull Web service integration, Room, Audio/Video Streaming, ExoPlayer, Face Recognition and OCR, Social Network - Facebook, Twitter integration, Google Map and other Google services, Other open source library integration and modification according to requirement. I am familiar with MVVM,MVC and Clean architecture pattern. I have developed some of my apps with MVVM + CLEAN architecture, including all layers, such as Presentation, Data and Domain. I have hands on experience in Kotlin Flow, LiveData and Coroutine. I am cost effective but quality work provider.
    Featured Skill Bluetooth
    JetPack
    Face Detection
    Android Room Persistence
    Core Java
    SQLite
    Firebase
    QR & Barcode Scanner
    Kotlin
    Mobile App Development
    API Integration
    Application Security
    Android App Development
    User Authentication
    In-App Purchases
  • $80 hourly
    With over 10 years of expertise in DevOps Engineering and mobile app development, I've earned the trust of 70+ clients worldwide, delivering more than 28,000 hours of exceptional service. My diverse skill set allows me to bridge the gap between infrastructure and application development, offering a comprehensive solution for your technical needs. I have consistently delivered outstanding results in both domains by: DevOps Engineering: 🚀 Achieving a 75% reduction in change failure rate 🚀 Increasing deployment frequency by 75% 🚀 Reducing lead time for changes by 80% 🚀 Decreasing mean time to recovery by 65% Mobile App Development: 🚀 Developing high-quality mobile applications with Flutter and Xamarin 🚀 Utilizing robust persistence solutions and effective networking techniques 🚀 Employing architectural patterns for scalable and maintainable codebases Why choose me? 💯 100% positive testimonial rate 🏆 Top Rated Plus Upwork Enterprise Talent Clouds ⭐ Total of 10+ years mixed of mobile development and AWS cloud computing Certifications: 🎖 AWS Certified ― DevOps Engineer (Pro), Solution Architect & Certified Developer 🎖 CKA Certified ― Certified Kubernetes Administrator 🎖 Xamarin Certified ― Mobile Professional and Certified Mobile Developer Tools and Technologies I Excel In: DevOps: • Automation: Jenkins • Cloud: AWS, Google Cloud Platform • CI/CD Pipeline: CircleCI, GitlabCI, GithubAction, Nexus, Jfrog • Version Control: Git, GitHub • Configuration Management: Kubernetes, Ansible, Terraform • Testing: Selenium, Playwright • Monitoring: Prometheus, Loki, ELK, Datadog, Grafana • Code Quality and Security: SonarQube, Checkpoint, Vault • Distributed Streaming: Kafka, Zookeeper, Flink Mobile App Development: Flutter: • Persistence: Shared preferences, sqflite, sembast, Cookiejar, mmkv_flutter • Networking: Dio, Flutter Downloader • Image: Cached Network Image, Bitmap, Photo View • Architecture: Provider, BLoC, MobX, GetX • TDD: Mockito, Flutter Widget Test • Ops: Bitrise, AppCenter, AWS Xamarin: • Persistence: Realm, SQLite.NET-PCL, Akavache, PCL Storage • Networking: Flurl, Refit, ModernHttpClient, Reachability, Fusillade • Image: Splat, EZ-Compress, NGraphics • Architecture: MvvmCross, Prism, ReactiveUI, Ninject • UI: Syncfusion Components, Telerik, Flex, OxyPlots • TDD: FluentAssertions, NBehave, NUnit • Misc: AutoMapper, NodaTime, Humanizer, Polly Not to mention, my extensive experience in both DevOps and mobile app development ensures you get two experts for the price of one. Ready to transform your technical operations and develop top-notch mobile applications? Let's work together to streamline your processes and deliver exceptional results. Reach out today and let's start turning your vision into reality!
    Featured Skill Bluetooth
    Bluetooth LE
    Amazon ECS for Kubernetes
    Containerization
    Docker
    Kubernetes
    Clean Architecture
    Universal Windows Platform
    DevOps
    Dart
    Map Integration
    Amazon Web Services
    Flutter
    Xamarin
  • $27 hourly
    ✅ TOP Rated ✅ 100% Job Success ✅ 5 Star Reviews ✅ 12+ Years Experience ✅One of the Best BLE | Bluetooth | Beacons | NFC | RFID | QR Code | Custom Sensors/ Gateway | WiFi | LoRa | nb-IoT based Service Provider 🚀 With over 12+ years of extensive experience in IoT-based Hardware, Firmware, Mobile, and web app development, I specialize in delivering cutting-edge solutions for diverse industries. My expertise spans across PCB designing, layout, Firmware programming, Android, iOS, Flutter, React for mobile applications, and Python, PHP, and Java for web applications. I am adept in Web APIs, backend architecture, SQL, NoSQL, and third-party API integrations, ensuring robust and scalable systems. ----------------------- 🎯 Domain served ------------------------ ✦ Healthcare & Fitness: Remote patient monitoring, smart medical devices, fitness tracking. ✦Automotive: Connected vehicles, Logistics & fleet management. ✦Automation: Smart home, industrial automation. ✦Agriculture: Precision farming, environmental monitoring, automated irrigation systems. ✦ Sports: Wearable technology, performance tracking. ✦Retail/Proximity: Beacon technology, personalized customer experiences, indoor routing, indoor navigation. ✦ Smart City & Environment: Waste management, Environmental monitoring, smart infrastructure ✦Industrial: Power automation, Smart Factory, Supply Chain Optimization, Worker Safety & monitoring - Construction, Remote monitoring & Control. ✦ Space: Satellite communication, telemetry systems. ✦ Defense: Rugged hardware and firmware, secure communication, surveillance systems, and tracking systems. ---------------------------------- 🎯 Key Projects in Domains ----------------------------------- ★ Healthcare Monitoring System: Developed a comprehensive mobile and web application for remote patient monitoring, integrating BLE and WiFi-enabled medical devices for real-time data collection and analysis. ★ Fitness Tracking Application: Developed a fitness tracking application that integrates with wearable devices to monitor and analyze user health and fitness data in real time ★ Connected Vehicle Platform: Engineered a robust IoT solution for fleet management, utilizing Bluetooth and GPS technologies for real-time tracking and data analytics. ★ Smart Home Automation: Created an intuitive mobile app for home automation, supporting various wireless protocols like Zigbee and RF for seamless device control. ★ Agricultural IoT Solution: Created an IoT system for precision farming, integrating environmental sensors and automated irrigation to optimize crop yield and resource usage. ★ Retail Proximity Marketing: Implemented a beacon-based proximity marketing system to enhance customer engagement and personalized shopping experiences. ★ Industrial Asset Tracking: Developed an indoor navigation and asset tracking system using BLE and RFID technologies to optimize asset management and enhance operational efficiency. ----------------------- 🔑Technical Skills ----------------------- ➠Mobile App Development: ◉ Platforms: Android, iOS, Flutter, React Native ◉ IoT Specializations: BLE, Bluetooth, Beacons, NFC, RFID, QR Code, Custom Sensors/ Gateway, WiFi ➠Web App Development: ◉Languages: Python, PHP, Java ◉Frameworks: Django, Flask, Laravel, Spring ➠Databases: SQL (MySQL, PostgreSQL), NoSQL (MongoDB, Time Series, Firebase) ➠ APIs Development: RESTful APIs, GraphQL ➠Backend Architecture: Microservices, Serverless architecture, Cloud computing AWS Services: EC2, S3, Lambda, RDS, DynamoDB, IoT Core, API Gateway, CloudFormation, CloudWatch ➠Hardware & Firmware Development, and Testing: ◉ Hardware: Product Designing, PCB designing, prototyping (Sample devices), and Mass Manufacturing on request. ◉ Firmware: Development for various microcontrollers and processors ➠IoT Expertise: ◉ Wireless Interfaces & Protocols: BLE, BT5, Mesh, LoRA, IrDA, CIR, RF, nb-IoT. ◉ Microcontrollers & Microprocessors: Qualcomm, Nordic, Texas Instruments, Cypress Semiconductor, Espressif Systems, NXP Semiconductor ------------------------- ⭐Why Choose Me? -------------------------- ◉ Proven Expertise: Over a decade of experience in IoT, mobile, and web app development. ◉ Innovative Solutions: A track record of developing innovative and scalable IoT solutions across multiple industries. ◉ End-to-end Service: Comprehensive service offerings from hardware design to software development and deployment. ◉ Client-Centric Approach: Dedicated to delivering solutions that meet client needs and drive business growth. Let's collaborate to transform your ideas into reality with cutting-edge IoT solutions. Feel free to reach out for a detailed discussion of your project requirements.
    Featured Skill Bluetooth
    CodeIgniter
    WordPress
    Internet of Things
    Core PHP
    Firmware Programming
    iOS Development
    Android App Development
    Swift
    Flutter
    React Native
    Core Bluetooth
    iOS
    iBeacon
  • $15 hourly
    ✅ TOP Rated Developer ✅ 100% Job Success ✅ 5 Star Reviews ✅ 9+ Years Experience 🏆 Award-Winning Mobile App Development helping entrepreneurs/startups build highly scalable mobile apps that win in the marketplace. 
🏆 Quality-oriented Developers with 9+ years of experience in iOS And Android Mobile Apps development with specialization in Bluetooth, Bluetooth Low Energy, iBeacon, and IoT application development. If you are looking for an expert in Mobile App Developers for Bluetooth, iBeacon, or IoT application development, you are in the right place. We have extensive experience in these areas and can help you bring your ideas to life with a Mobile application that can interact with your hardware and leverage the capabilities of Bluetooth and iBeacon technology. My Profile Highlights: ✅ TOP RATED Mobile App Developer ✅ Expert in BLE, Bluetooth, IoT, NFC, MQTT, iBeacon ✅ Developed Apps for iOS, Android, WatchOS, macOS, WearOS, and many more ✅ Experience with MVC and MVP architecture patterns. I have expertise in the following:- ✅ To build a Native Application using Swift, Objective C, SwiftUI, Java, Kotlin. ✅ BLE, Bluetooth, IoT, NFC, MQTT, iBeacon-based applications ✅ Fitness/Health sector apps ✅ Home Automation / Industrial Automation ✅ Wearable devices ✅ Automotive infotainment ✅ Proximity and location-based services ✅ Point of purchase and retail ✅ Asset Tracking ✅ OTT Application development ✅ Web services-based applications using React, Angular, PHP ✅ Things Finder Application Development ✅ Bluetooth SDK & API Development ✅ nRF Firmware Upgrade Specialist ✅ Fleet Management ✅ SDK Development ✅ NFC & QR Code based App Development ✅ Expert in Project Management, Version Control, GitHub, GitLab, Bitbucket I'm eager to work with you to provide reliable, consistent, and High-Level solutions to design/development challenges. Please contact me, so we can discuss how we can work together to FULLY meet your Business Needs! Thank you.
    Featured Skill Bluetooth
    Kotlin
    iPad App Development
    Bluetooth LE
    Objective-C
    Native App Development
    Android App Development
    HealthKit
    Android
    iOS
    Smartwatch
    Mobile App Development
    Swift
    iBeacon
    Internet of Things
  • $99 hourly
    ✅ Upwork Top Rated & Verified Mobile Developer Apple App Store Rankings: #74 Overall | #5 Sports | #25 “What’s Hot” | #11 Productivity ✔︎ 5-star rated | 100% Job Success | 15+ years experience ✔︎ 75+ projects completed | 50+ apps published to Apple App Store / Google Play ✔︎ Extensive iOS and Android experience (Swift, Objective-C, Kotlin, Java) Creating a modern app is a challenging task, so having someone to help you navigate through the many complexities of not only creating the app, but also getting it live on the store is necessary. I realize how important this project is to you, and with my experience and track record I will be your advocate throughout the entire process. Communication is key to the way that I develop software. With proper communication you can feel confident that all aspects of the app development are moving in the right direction. I will keep you aware of the apps’ progress both with frequent communication by phone/email/Zoom and with consistent updates that can be downloaded and installed on your devices. You are the expert on what the app needs and only you know what is going to work for you and your users. As a former teacher, helping people reach their goals comes naturally to me. I’m looking forward to helping you create the next great app! ------------------------------------------------------------------------------------------------------ Apps developed in these app store categories: Productivity, Medical, Health & Fitness, Sports, Utilities, Education, Games, Music, Books, Business, Lifestyle, Reference, Shopping, News, Navigation, Photo & Video, Food & Drink, Social Networking, Entertainment Large clients include: Stanford University, Monster Digital, UC Davis, Allegheny Health Network, Schroeder Publishing Co, Washington Suburban Sanitary Commission, Cambridge Health Alliance, VICIS Sporting Goods **Additional information available at my company’s website twosuntraders.com.
    Featured Skill Bluetooth
    Mobile App Development Consultation
    Mobile App Improvement
    App Store
    Kotlin
    SwiftUI
    iPad App Development
    Mobile App Development
    Android App Development
    iOS Development
    Firebase
    iOS
    Swift
    Objective-C
    iPadOS
  • $60 hourly
    Hello, I am Samuel an Upwork Top Rated Plus iOS (Swift, SwiftUI, Objective-C) & React Native developer from the UK. My specialities are - - developing Apple apps - iPhone, iPad, Apple Watch, Apple TV - apps for connected devices - BLE/Bluetooth/Wi-FI/Network connected e.g. health, fitness, audio devices - cross platform (Android and iOS) React Native apps including cross platform BLE/Bluetooth apps - health and fitness apps (including using Apple HealthKit) - widgets (home and lock screen) - upgrading the React-native version on projects I aspire to the highest standards on each release. I have worked for and with blue chip companies including Bose, Corsair, Musclegun, SC Johnson, Glade, PWC, Vision Cruise, California Fresh Scent, RHA, Phlex Swim, Parqio, Stance Fitness, Huckleberry, Visual Accoustic, Bunafr, Neutrally, Infinite Touch, Mellow and Simple Audio ensuring that their visions are implemented. I have extensive experience in SwiftUI, Swift, Objective C and React Native. I have an excellent knowledge of the music streaming services, the audio industry, wellness, health and research having worked in these industries providing applications that exceeded expectations. With having worked on both large scale multinational and more bespoke apps I have a variety of experience. Project management is a key skill and I can use tools to ensure value is gained and projects are on track.
    Featured Skill Bluetooth
    Mixpanel
    Intercom
    iOS Development
    Firebase
    React Native
    Push Notifications
    iOS
    Connected Device
    Core Bluetooth
    ResearchKit
    Apple Watch
    HealthKit
    iPad App Development
  • $45 hourly
    👋 I'm a 𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 𝗠𝗼𝗯𝗶𝗹𝗲 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 with a serious track record - more than 𝟭𝟯 𝘆𝗲𝗮𝗿𝘀 in the game and 𝗼𝘃𝗲𝗿 𝟱𝟬 𝗺𝗼𝗯𝗶𝗹𝗲 𝗮𝗽𝗽𝘀 under my belt. I've got chops in both 𝗶𝗢𝗦 and 𝗔𝗻𝗱𝗿𝗼𝗶𝗱 platforms, and I'm all about making killer apps from the ground up. Whether it's 𝗻𝗮𝘁𝗶𝘃𝗲 𝗺𝗼𝗯𝗶𝗹𝗲 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 (like 𝗦𝘄𝗶𝗳𝘁𝗨𝗜, 𝗦𝘄𝗶𝗳𝘁, 𝗢𝗯𝗷𝗲𝗰𝘁𝗶𝘃𝗲-𝗖) or 𝗵𝘆𝗯𝗿𝗶𝗱 𝗮𝗽𝗽 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 (think 𝗙𝗹𝘂𝘁𝘁𝗲𝗿), I've got you covered. This is 𝘄𝗵𝗮𝘁 𝘀𝗲𝘁𝘀 𝗺𝗲 𝗮𝗽𝗮𝗿𝘁 𝗳𝗿𝗼𝗺 𝗲𝘃𝗲𝗿𝘆𝗯𝗼𝗱𝘆 𝗲𝗹𝘀𝗲 you could hire to help you with development: 1️⃣ I love creating mobile experiences that aren't just functional, but also really connect with users. I'm talking about 𝗲𝘆𝗲-𝗰𝗮𝘁𝗰𝗵𝗶𝗻𝗴 𝗨𝗜/𝗨𝗫 𝗱𝗲𝘀𝗶𝗴𝗻 and sturdy, 𝘀𝗲𝗰𝘂𝗿𝗲 𝗯𝗮𝗰𝗸-𝗲𝗻𝗱 𝗮𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲 to keep everything running smoothly. 2️⃣ And that's not all! I'm also an expert when it comes to integrating mobile apps with all kinds of 𝗔𝗣𝗜𝘀, 𝗱𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀, 𝗮𝗻𝗱 𝗰𝗹𝗼𝘂𝗱 𝘀𝗲𝗿𝘃𝗶𝗰𝗲𝘀, so the user experience is seamless. Plus, I'm always on the ball when it comes to 𝗱𝗲𝗯𝘂𝗴𝗴𝗶𝗻𝗴, 𝗼𝗽𝘁𝗶𝗺𝗶𝘇𝗮𝘁𝗶𝗼𝗻, 𝗮𝗻𝗱 𝗺𝗮𝗶𝗻𝘁𝗲𝗻𝗮𝗻𝗰𝗲, so the apps I build stay in tip-top shape. 3️⃣ Bottom line: I'm not just here to meet expectations – I'm here to blow them away. If you're looking for 𝗵𝗶𝗴𝗵-𝗾𝘂𝗮𝗹𝗶𝘁𝘆, 𝗰𝘂𝘀𝘁𝗼𝗺 𝗺𝗼𝗯𝗶𝗹𝗲 𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀 that'll help your business grow and keep your customers happy, then let's connect! Big thank you for learning about me! 𝗕𝗼𝗼𝗸 𝗮 𝗽𝗮𝗶𝗱 𝗰𝗼𝗻𝘀𝘂𝗹𝘁𝗮𝘁𝗶𝗼𝗻 if you want specific advice. Invite me to your project or send me a direct message if you want to have a no-cost exploratory conversation about working together.
    Featured Skill Bluetooth
    Full-Stack Development
    AI App Development
    Transportation & Warehousing
    Real Estate
    Flutter
    SwiftUI
    n8n
    Sports & Fitness
    Health & Fitness
    iOS SDK
    Mobile App Development
    iOS Development
    tvOS
    Swift
    Objective-C
  • $99 hourly
    Hi, I’m Daniel, a 𝗧𝗢𝗣 𝗥𝗔𝗧𝗘𝗗 𝗣𝗟𝗨𝗦 Product Design Engineer with 𝟮𝟬+ 𝗬𝗲𝗮𝗿𝘀 𝗼𝗳 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 𝗮𝗻𝗱 𝟯𝟬𝟬+ successful projects. I specialize in turning ideas into reality, from initial concept to mass production. My expertise includes product design, prototyping (CNC & 3D printing), and manufacturing. With a 100% Job Success Score, I’m trusted by clients worldwide to deliver high-quality results on time and within budget. Let's work together to turn ideas into real products. ✅Who is Daniel (QIN GUICHENG)? ◆300+ successful projects with 300 ✪✪✪✪✪ 5 star reviews ◆10,000 hourly job success with Top-Rated Plus status ◆100% Job Success Score ✅What services can Daniel offer? ◆Custom Product Design: From concept to final design, tailored to your needs. ◆Prototyping: CNC machining & 3D printing in metal and plastic. ◆Engineering & Manufacturing: Small-scale production with precision and efficiency. ◆Software Expertise: Creo, SolidWorks, Pro/E, AutoCAD, Fusion 360. ✅Why work with Daniel? ◆Very trusted and confidential with NDA ◆Strong team in engineering and manufacturing ◆Connections to manufactures ✅What Clients Said About Daniel's Service ⭐️⭐️⭐️⭐️⭐️Charles, USA Daniel and his team were absolutely wonderful to work with. I love a team that can get quality work done in a short time with little to no supervision. Micromanaging can be stressful and takes my bandwidth, which lowers the value of what I am paying full price for. Daniel and his team spent a good bit of time getting a clear direction and asking a lot of questions about the project goals. After that, they came back to me in a very short time with 5 different design directions. Together we worked through the pros and cons of each and finalized the design. They went to work on a prototype and in less than a few weeks I had the first and possibly final design sitting in my hands, and it was much better than I expected. I will be using them immediately on my next project and you should not hesitate to do the same A+. ⭐️⭐️⭐️⭐️⭐️Steven, USA I had the pleasure of working with Daniel at Besyotech, and I must say, it was an outstanding experience. From the start, Daniel's professionalism and expertise were evident, as he took the time to understand my manufacturing needs and provided valuable insights to improve the product's design and functionality. Throughout the process, communication with Daniel was seamless, and he kept me well-informed with regular updates and prompt responses to my queries. The final products delivered by Besyotech were of exceptional quality, and they met the agreed-upon deadlines without compromising on excellence. The entire team's commitment to outstanding customer service made this collaboration truly remarkable. I highly recommend Daniel and Besyotech to anyone seeking manufacturing solutions; they certainly exceeded all my expectations. Five stars without a doubt! ⭐️⭐️⭐️⭐️⭐️Ryan, USA Daniel is unquestionably the best freelancer that I have worked with on Odesk. He is also among the best mechanical engineers with whom I have worked at any company. I was previously an engineering manager at Quaclomm, and while there I worked closely with a talented mechanical engineering team to create cellphone and tablet reference designs. Daniel would have no problem matching or exceeding the performance of many engineers on the Qualcomm team. He is diligent, responsive, and pays very close attention to detail. He is an expert at his craft, having strong knowledge of mechanisms, plastics, injection molded part design, and requirements for high volume production. He also understands basic physics and applies it to his work. This is a surprisingly rare quality. His communication is great. He provides very detailed write-ups and speaks excellent English. If you need a mechanical design, and you want it done on time, and done right the first time, Daniel is your man. ✅ How to Start Your Project? Message me today with a brief overview of your project, and I’ll provide a detailed proposal or consultation.
    Featured Skill Bluetooth
    Engineering Design
    Mockup
    Prototype
    Injection Mold
    Product Development
    Prototyping
    Contract Management
    Injection Mold Design
    Mechanical Design
    Product Design
    SolidWorks
    Autodesk AutoCAD
    3D Printing
    Design for Manufacturing
    3D Modeling
  • $70 hourly
    Highly creative and experienced product designer. Medical devices, consumer products, and military/avionics. Specialize in battery operated embedded systems that include sensors, displays, wireless, and human interfaces. Expertise in rf design, analog, signal conditioning, power supplies, battery management and wireless. Proficient in schematic and pcb design. Can work with your ME or ID to create a design that fits the desired form. My years of consulting experience lead to accurate project estimates and on time delivery of a functional design.
    Featured Skill Bluetooth
    Digital Electronics
    Core Bluetooth
    PCB Design
    Analog Electronics
    Antenna Design
    Embedded C
    Embedded System
  • $60 hourly
    🥇TOP B2B Company according to Clutch (7+ Clutch awards in total)🥇 🏆The most experienced IoT and embedded systems development agency on Upwork according to a number of successfully completed projects in the industry🏆 🚀We helped 6 customers to raise more than $5,000,000 on Crowdfunding platforms in total ✅ Hey there! As the CTO at Integra, I have a wide range of responsibilities: analyzing technical requirements of new projects, creating specifications, advising our developers on certain technologies to be used. Also, I manage both hardware and software teams and participate in calls with our customers. So, just drop me a line for a professional technical analysis and help. ✅ Who we are? We founded Integra Sources with an idea to create things deemed impossible and we've been successfully doing that since 2013. Since then, Integra Sources has completed more than 100 projects making happy more than 40 clients. We are proud to have a 90% client retention rate. Currently 25+ employees. ✅ What do we do? Integra provides professional services in areas of IoT, electronic design, embedded systems, kernel and driver development, system and application software development, computer vision, and robotics. ✅ Why choose us? - Reliable electronic design team - All kind of embedded software development - Full-stack software development capability - Dedicated project management - Effective testing techniques - Expected delivery - Support and maintenance - Privacy security ✅ How do we cooperate? - Project-based outsourcing - Dedicated development team - Research & development - Technology consulting - Solutions for startups Because we serve the needs of different kinds of businesses, we offer a choice of different frameworks that define collaboration between us and our clients. ✅ Industries we work with • IoT/consumer devices • Smart Home • Wearables • Industry • Healthcare • Sports • Entertainment ✅ What services do we offer? ✅ Electronic Design: • Embedded hardware • Power electronics • PCB design and layout • FPGA design Platforms: • STMicroelectronics: - STM32F4 Series (STM32F401, STM32F405/415, STM32F407/417, STM32F410, STM32F412, STM32F412/423, STM32F427/237, STM32F429/439, STM32F446, STM32F469/479) - STM32F2 Series (STM32F2x5, STM32F2x7) - STM32F7 Series (STM32F7x0, STM32F7x2, STM32Fx3, STM32F7x5, STM32F7x6, STM32F7x7, STM32F7x9) - STM32H7 Series (STM32H723/733, STM32H725/735, STM32H730, STM32H742, STM32H743/753, STM32H745/755, STM32H747/757, STM32H750, STM32H7A3/7B3, STM32H7B0) - STM32F0 Series (STM32F0x0, STM32F0x1, STM32F0x2, STM32F0x8) - STM32F1 Series (STM32F100, STM32F101, STM32F102, STM32F103, STM32F105/107) - STM32F3 Series (STM32F301, STM32F302, STM32F303, STM32F334, STM32F373, STM32F3x8) • Nordic Semiconductor: - nRF51 (nRF51822, nRF51422, nRF51824, nRF51802) - nRF52 (nRF52840, nRF52833, nRF52832, nRF52820, nRF52811, nRF52810, nRF52805) - nRF52 (nRF5340) - nRF91 (nRF9160) • Microchip Technology/Atmel - PIC16 MCUs (PIC16F18446, PIC16F19197, PIC16F15386, PIC16F18346, PIC16F1779, PIC16F18877, PIC16F1619, PIC16F1709, PIC12F1572) - PIC18 MCUs (PIC18-Q41, PIC18-Q43, PIC18-Q10, PIC18-K83, PIC18-K42, PIC18-K40) - PIC32 MCUs (PIC32MK, PIC32MZ EF, PIC32MZ DA, PIC32MM, PIC32MX) - SAM MCUs (SAM C, SAM D, SAM E, SAM G, SAM L, SAM S, SAM V, SAM 4E, SAM 4L, SAM 4N, SAM4S) - AVR MCUs (tinyAVR, megaAVR, AVR XMEGA) - CEC MCUs (CEC1712, CEC1302, CRC1702) • NXP Semiconductors - iMX RT (iMX RT1170/RT1064/RT1060/RT1020/RT1015/RT1010) - iMX 8 (iMX 8/8M Plus/8M/8M Min/8M Nano/8X) - iMX 7 (iMX 7ULP/7Solo/7Dual) - iMX 6 (iMX6ULZ/6ULL/6UltraLite/6SLL/6SoloLite/6SoloX/6Solo/6DualLite/6Dual/6DualPlus/6Quad/6QuadPlus) • Allwinner Technology - Allwinner A Series (A20, A33, A40i, A50, A63, A64) - Allwinner H Series (H2, H3, H6, H80) • Texas Instruments - C2000 MCUs - Hercules MCUs - MSP430 MCUs - Sitara processors • Infineon - XMC Series - Aurix Series • Xilinx • Intel • Silicon Labs • Freescale Semiconductor • Silicon Labs • Espressif Systems ECAD software: • Altium Designer • Eagle Cad • Cadence Allegro • OrCAD • KiCad • P-CAD ✅ Embedded Software Development: • Firmware • Board Support Package (BSP) Tools: • Visual GDB • Eclipse • Keil • IAR • CrossWorks IDE • Simplicity Studio • Code Composer Studio • Atmel Studio • STM32CubeIDE Languages: • C/C++, Assembler Real-time OSs: • FreeRTOS • Zephyr • ThreadX • NuttX ✅ Kernel and Driver Development: • Windows • Linux • Mac • Android Driver types: • Kernel-mode • User-mode • Virtual device drivers ✅ System and Application Software Development: • Desktop, Web and Mobile applications • Middleware • Cloud/IoT Solutions • Machine Learning • Computer Vision (OpenCV, TensorFlow) Platforms: • Windows, Linux, Mac, Android, iOS Languages/Frameworks: • C/C++, Qt, Python, Java, Kotlin, JS, Objective-C, Swift, PHP, C# ✅ Robotic Development: • Flying drones • Robots on wheels • Autonomous movement Technologies: • RTOS, ROS, Linux, OpenCV, Visual SLAM
    Featured Skill Bluetooth
    Windows App Development
    Digital Engineering
    Digital Electronics
    Android
    Circuit Design
    Systems Development
    ARM Microcontroller
    ANSI C
    App Development
    API Development
    Robotics
    Windows API Development
    Embedded Linux
    System Programming
    Embedded System
  • $80 hourly
    "One of the best services I got in the past 20 years. Super professional and knowledgeable. Much experience. Remarkable communication skills. Attentive immediately when I needed to. Solved 100% of my problems and gave me ideas for new directions. My business is growing thanks to him. Thank you, Jure" Do you have a crazy idea about a new device, sensor, wearable, or microcontroller in eHealth, Industry, Logistic, SmartCity, SmartHome, or Research? And you do not know if it is doable, how to start it, or what are possibilities? Yes, the Internet of Things world is strange. How about investing in a short consulting hour call with me? I will answer your questions, and I am competent to say that your idea won't work, but also suggest an alternative. My motto is "Fail fast without big consequences, learn something, repeat, succeed!" A resourceful, creative, passionate and highly driven individual with communication and project skills and out-of-the-box thinking. Keen on solving unique tasks. I come from a highly technical background (BSc in IT). I’ve been the owner and the CEO of various IT companies, which is how I started working in management and business development. I am still an ongoing PhD candidate in business and management. Multi-awards winning project/team leader and IoT consultant. Most of these consisted of proofs-of-concept (POC), prototypes, mobile apps and back-ends for IoT, Industry 4.0, healthcare (eHealth, telehealth, telemedicine), SmartCity, AAL, SmartHome with sensors (acc, ECG, GPS, environmental), beacons, controllers, wearables (smartwatches and smart-bands) and embedded systems (Raspberry PI, Arduino, ESP32), using WiFi, Bluetooth (BT, BLE, BLE Mesh), LoRaWAN, Meshtastic NB-IoT, MQTT brokers in several big EU funded R&D and other commercial projects. Eurostars Eureka IoT evaluator. Solutions: - SandBox.engineering - SandBox is OT and IT IoT Engineers’ Swiss Army Knife. It provides a controlled learning, testing, and experimentation environment, enabling users to acquire domain expertise and confidently evaluate different vendor solutions. - FIWAREBox - a SandBoxOS solution in a private cloud or on-premises, installed with all needed packages, scripts, dashboards, examples, development / support tools and documentation to start discovering and using FIWARE in minutes! - UNSBox - a SandBoxOS solution in a private cloud or on-premises with an IoT EDGE PC, installed with all needed packages, scripts, dashboards, examples, development / support tools and documentation to start discovering and using Unified Namespace in hours! - IoTool.io - the multi-awards winning IoT solution and a platform incorporating Client / Dashboard / Gateway / Cloud / API all on the Smartphone, supporting more than 100 different devices using Bluetooth. - IoChat.io - the highly secured, self-deployed in-premises text, audio, video chat, screen and file sharing WebRTC solution used in hospitals and nursing homes, for patient and doctor communication or as a general-purpose video conferencing system, easily integrated into any platform, - IoTconcept.team - fast agile IoT prototyping. - CrowdSensing.mobi - the smartphone platform used by a large, spread-out group of participants to collect and receive reliable data from the field. I have a fairly unique skill-set that will help your business by combining your needs and wishes (product and IT) with your business end. Sometimes, I wasn't smart enough to know that I couldn't do it, so I did it. 😊
    Featured Skill Bluetooth
    Android App Development
    Core Bluetooth
    Firmware Programming
    Healthcare IT
    Concept Design
    PCB Design
    Microcontroller Design
    Research & Development
    WebRTC
    React Native
    Mobile App Development
    Internet of Things
    Wearable Technology
    Prototyping
  • $150 hourly
    I am an experienced firmware engineer, specializing in firmware for wireless technology (Bluetooth, Cellular, Wifi, LoRa and ZigBee). My experience supporting clients with their related needs in a wide variety of industries enables me to quickly understand complex problems, apply the correct frameworks and solutions, and deliver optimal solutions. I have a particularly significant amount of experience with BLE networks, ARM-Cortex based microcontrollers, and LTE modules, which have been high priorities for my clients. I can help you develop powerful embedded systems that will exceed your expectations. I design products that not only meet our customer's requirements but are beautifully simple and reliable. 🔑𝐊𝐄𝐘𝐖𝐎𝐑𝐃𝐒: Embedded Design, Hardware Design, Firmware Development, Mobile App Integration, IoT Device, Medical Device Design, Embedded Systems, Real-time Operating Systems (RTOS), Microcontroller Programming, Sensor Integration, Wireless Communication (Bluetooth, Wi-Fi), Low Power Design, Wearable Devices, Firmware Architecture, Embedded Software, Device Drivers, System-on-Chip (SoC), PCB Design, Signal Processing, IoT Platforms, Cloud Integration, Mobile App Development, Web Portal Design, Healthcare Technology, Remote Monitoring, Data Security, Telemetry, ARM Cortex, ESP32, Device Connectivity, Embedded Prototyping, Human-Machine Interface (HMI), Medical Device Compliance, Mobile-Connected Devices, IoT Security, BLE, Firmware Debugging, Connectivity Solutions, Edge Computing, Smart Devices, Industrial IoT.
    Featured Skill Bluetooth
    Microcontroller
    Embedded System
    Python
    Microcontroller Programming
    Zigbee
    C
    C++
    WiFi
  • $30 hourly
    Hi! I'm an iOS developer passionate about crafting clean, high-performance apps that deliver smooth user experiences. I love solving complex challenges that push my skills and drive innovation. 🏆 My expertise includes: - Swift - SwiftUI - iOS SDK - Firebase - UIKit - CocoaPods/Swift Package Manager - AVFoundation - Core Animation - Jira, Github, TestFly - Architectural patterns (MVVM, MVP, VIPER etc) - SOLID principles - TDD approach - Agile methods etc. 🎯 Whether you need a new app from scratch, performance optimization, or feature enhancement, I’m here to help! 📩 Let’s build something great together—reach out today! ______________ * Need a wider range of services? No worries, you are on the right path anyway. I'm working in association with the 90-person-strong TOP Rated Plus Agency - PECODE. You can count on us if you need experts in UX/UI design, Mobile app development, Quality Assurance ( manual & automation). We will support you at each stage of development: 🥇 Before the start, we provide you estimates based on project requirements analysis and specification 🥇 Take care of the web product's development from needs to production 🥇 Support and improve the product after realisation. Since 2017 we bring client's ideas into reality, and we are looking forward to starting the collaboration with you!
    Featured Skill Bluetooth
    Cocoa API
    iOS SDK
    User Authentication
    In-App Purchases
    Firebase
    Map Integration
    Push Notifications
    Offline Functionality
    Review or Feedback Collection
    Smartphone
    Tablet
    Mobile App Development
    Swift
    iOS
    iPadOS
  • $50 hourly
    Experienced in the field of Embedded System Design. Main Area of Interests is Home Automation, Industrial Automation, IoT System Design, Embedded System Design, PCB Design, Firmware and Application programming. PCB Design Skills: Altium, Eagle, KiCad. Micro Controlllers: FPGA, CSR8670 , CSR8675, STM32, ESP32, NRF52840, NRF52832, Arduino, Raspberry Pi. Interface Protocol : SPI, I2C, I2S, DSI, UART, CAN, ModBUS, RS232, RS485. Communication: WiFi, Bluetooth, BLE, Bluetooth5, NFC, ANT, SUB-1GHz, ZigBee, 6lowpan, IR, LORA
    Featured Skill Bluetooth
    Arduino
    ARM Microcontroller
    Embedded System
    WiFi
    PCB Design
    Arduino Firmware
    Raspberry Pi
    Firmware
    ESP32
    STM32
    nRF52
    Microcontroller Programming
    Embedded C
    Bluetooth LE
  • $30 hourly
    Senior iOS & Flutter, React Native Developer | 11+ Years of Expertise Timely Delivery 🚀 | Clean Code ✨ | Scalable Architecture 🛠️ | Agile Methodology With over 11+ years of experience in native iOS (Swift, Objective-C, SwiftUI) and cross-platform Flutter (Dart) development and React Native, I specialize in building high-performance, scalable, and well-architected mobile applications. My expertise in SOLID principles, architectural patterns (MVC, MVVM, VIPER), and state management (RiverPod, Provider, Redux) ensures robust and maintainable code. 🔹 Core Strengths: ✅ Expert in iOS & Flutter Development – Deep knowledge of Swift, SwiftUI, Dart, and Objective-C ✅ Scalable & Clean Architecture – Proficient in MVVM, VIPER, and SOLID principles ✅ Agile & Collaborative – Experience working in teams and individually with Agile/Scrum methodologies ✅ High-Quality Delivery – Focus on well-tested, optimized, and future-proof code ✅ Strong Backend Integration – Firebase (Firestore, Realtime DB, Auth), Twilio (Chat, Video, Screen Sharing), WebRTC, Socket.io ✅ Payment & Notifications – In-app purchases, Stripe, Braintree, and Push Notifications ✅ Version Control & Code Management – Git expert, experienced in cherry-picking, branching, and collaborative workflows 🔹 Technical Skills: 📱 Mobile Development: - iOS: Swift, Objective-C, SwiftUI, UIKit, Storyboard - Flutter: Dart, RiverPod, Provider, Bloc - Android: Kotlin, Java (basic proficiency) 🛠 Backend & APIs: - Firebase (Firestore, Realtime DB, Cloud Functions) - Twilio (Video/Audio Calls, Chat, Screen Sharing) - RESTful APIs, WebSockets (Socket.io), WebRTC ⚙ Additional Skills: - Server-Side Swift (Vapor) - PHP (Laravel, CodeIgniter – familiarity) - AWS Management - Database Design & Optimization 🔹 Why Work With Me? ✔ Timely Communication – Clear, professional, and responsive ✔ Problem-Solving Approach – In-depth requirement analysis before development ✔ Quality Assurance – Bug-free, optimized, and scalable solutions ✔ Extensive Device Testing – Access to multiple test devices for compatibility checks ✔ Leadership & Teamwork – Experience leading teams while being a reliable individual contributor I’m committed to delivering high-quality, maintainable, and user-friendly applications. Let’s discuss how I can bring value to your project!
    Featured Skill Bluetooth
    JetPack
    iPad App Development
    Firebase Cloud Firestore
    Objective-C
    Swift
    Kotlin
    Android
    Android App Development
    iOS Development
    Flutter
    Twilio API
    Firebase Realtime Database
    Java
    Dart
    Native App Development
  • $120 hourly
    I am a Firmware Engineer with 6 years of experience working on products in industries such as automotive, agriculture, medical, and consumer electronics. My main area of expertise is IoT, using technologies such as LTE, BLE, and WiFi to create connected devices. I am most proficient with ESP32 and STM32 microcontrollers, but I also have experience working with PIC, AVR, and TI microcontrollers.
    Featured Skill Bluetooth
    FreeRTOS
    Arduino
    Python
    Embedded C
    Firmware Programming
    STM32
    ESP32
    Sensor
    Raspberry Pi
    Microcontroller Programming
    Firmware
    Internet of Things
  • $90 hourly
    * Building applications from the ground up. * Finding and fixing performance issues on existing applications. * I have a lot of experience working with the Arduino platform for robotics projects. * I've used the ESP32/ESP8266 for IoT applications. * I've worked with other microcontrollers in the past, such as the MSP430. * I've worked as an application developer full time using C#. * I've also built projects that interfaced with a C# or Python program on a PC.
    Featured Skill Bluetooth
    PCB Design
    Robotics
    ASP.NET Core
    Internet of Things
    C#
    Microcontroller Programming
    Arduino
    Embedded System
    ESP32
  • $75 hourly
    Ever felt swamped in the vast sea of mobile app developers? It's frustrating when deliveries are late, functionalities go missing, and codes resemble intricate mazes. Trust me, you aren't the only one navigating these waters. Many collaborators have shared stories of past stumbles. But here's a ray of hope: we can steer towards a brighter horizon. With a decade under my belt and a heart full of passion, I aim to rewrite these narratives. Some Milestones: ⭐ Spearheaded development for Fitbit, which impressively raised $66M. ⭐ Had the honor of collaborating with Pure, Powerdot, and Xsat, all of which celebrated significant investment milestones. ⭐ Steered numerous projects using cutting-edge technologies, simplifying and accelerating the development trajectory. ⭐ Seamlessly merged the principles of Agile & Scrum, fostering flexibility and quick turnarounds. Let me introduce myself I'm Sergey, possibly your next Lead Android/iOS Developer. The past decade has been an exhilarating roller-coaster, packed with invaluable experiences, challenges, and a string of successful projects. I've lent my expertise to startups, and industry giants, helping them manifest their mobile app dreams. Why do they choose me? ✅ A relentless drive to craft projects that stand out and garner rave reviews. ✅ Undying support post-project because our relationship isn't just transactional. ✅ A rich toolkit encompassing Kotlin, Swift, and trailblazing frameworks like Jetpack Compose & SwiftUI. ✅ Agility in approach with a deep-rooted foundation in OOP & Functional programming styles. My Array of Specialties: 📱 Leading mobile development with Kotlin, Java, Swift 🚀 Cross-platform mobile app development using Flutter, React Native 🌐 Backend prowess with Firebase and Node.js. 💻 Architectural excellence with MVVM, MVP, MVI, and VIPER. 🔄 Transparent updates and effortless communication, ensuring you're always in the loop. In a nutshell? I value transparency, efficiency, and making a tangible difference. It's not just about crafting any mobile app, but sculpting one that resonates, scales, and surpasses the norm. Ready to embark on an extraordinary journey? Let's unite over a virtual coffee and set the wheels in motion for your next mobile marvel!
    Featured Skill Bluetooth
    Machine Learning
    VPN
    Wear OS
    Smartphone
    Mobile App
    iOS
    Android
    iPad App Development
    Kotlin
    Android NDK
    Java
    Android App Development
    Android SDK
    Swift
    iOS Development
  • $36 hourly
    ✅ 100% Client Recommendation ✅ Top Embedded and Firmware developer ✅ Top Hardware designer ✅ Top Software design ✅ Top Mechanical design and industrial design ✅ Top Enclosure design Services: 1) Hardware/Electronics design (Power, Analog, Digital/High-speed and RF electronics design) 2) Precertification testing (EMI, ESD, EMC, FCC, CE, UL) 3) Firmware design С/C++ (Bare metal MCU/MPU, FreeRTOS, Zephyr RTOS, Embedded Linux, Wireless protocols, Security, Interfaces, etc) 4) Industrial and Mechanical design (Enclosure design, 3D printing, IP standards, Prepare all for injection molding, etc) 5) UX/UI design (Embedded devices with displays, Mobile and Desktop applications) 6) Software design (Android, IOS, Linux kernel and user space development) 7) Embedded Quality Assurance(QA) and testing 8) Manual verification/testing PCB/FPC, functional and unit testing of the Firmware/Software, stress testing, temperature range testing Service->Hardware design service: - Power electronics design: (PFC, Solar charging controller, chargers, high voltage control, Motor controllers DC/AC/BLDC ) - Analog electronics design: High-accuracy analog measurements, Noise filtration, Digital to analog conversion, Amplifying signal - Digital and high-speed electronics design: - Memories DDRx/LPDDRx, SDRAM, Camera and display interfaces (MIPI-DSI, MIPI-CSI, DisplayPort, etc), Data communication interfaces (QSpi, SPI, UART, I2C, FMC, I2S, USB 2/3.x, etc), ( - RF Designs: ( 50-60 GHz (Radars), 1-6 GHz (UWB, Wifi, BLE, ZigBee, GPS, NB-IoT, LTE-M/LTE, Z-Wave, etc), 13,6 MHz, 128 kHz (NFC, RFID, etc), 433 MHz (Custom protocols) Service->Industrial and Mechanical design - Industrial design of the sketch - it includes a few sketch designs, depending on the physical sizes of the device, specific of industry and user experience - Mechnical CAD design with deep PCB integration - it includes full mechanical draw based on the industrial design with detailed sizes, materials and manufacturing specific. - Thermal calculation and simulation - it includes simulation of the heating device inside enclosure, with theoretical cooling calculation - 3D printing and verification - we use 3D printer hp jet fusion 5210, with a very nice quality of printing, that helps us to make a good verification of parts with PCBs - Injection molding - the last step, which includes manufacturing optimization and making pres forms, preparing documentation for the manufacturing Service->Firmware design С/C++: - Languages: C/C++, Assembler - Diagrams: Block, UML, Workflow, APIs - Interfaces: I2S, SAI, MIPI-DSI, MIPI-CSI, USB 2/3.x, LTDC, DDR3/DDR4/LPDDR4, I2C, SPI/QSPI, UART, CAN, Ethernet - Wireless: NB-IoT, LTE M, GPRS, GPS, LTE, UWB, WiFi, BLE, ZigBee, Z-Wave, LoRa, Thread, 6LoWPAN, Sub 1GHz, NFC (13,6 MHz), RFID 433 MHZ and 128 kHz - Protocols : MQTT, HTTP, FTP, Modbus TCP/RTU, SNMP, TCP/IP, UDP/IP, DLMS, custom protocols - Security: AES, SSL/TLS, custom algorithms - Libs and frameworks: TouchGFX (GUI lib for MCU), emWin (GUI lib for MCU), LVGL (GUI lib for MCU), WolfSSL (SSL/TLS), Mbed TLS(SSL/TLS), osxMotionFX (Sensors fusion algorithm based on the Kalman theory), FatFS, lwIP (TCP/IP stack), WICED (Wifi stack), aws/amazon-freertos, Paho MQTT, TensorFlow - Embedded OS: FreeRTOS, TI-RTOS, ZephyrOs, Embedded Linux, Yocto, ROS - MCUs: NXP (i.MX RT1064, LPC1100, LPC4000), Nordic (NRF52xx/NRF53xx/NRF91xx), TI (CC3220/CC26xx/CC1100/CC3200, MSP430), Espressif (esp32, esp8266), ST(STM32H7/F7/F4/L4/F0/L0/WB/WL/G0 and STM8), Atmel/Microchip(SAM D20/D21/L21/R21/V70/V71, SAMA5/SAM4/SAMD4), Silicon Labs(EFR32, ZGM130S), Cypress (PSoC 3/PSoC 4), Kinetis (Family MK81FN256VDC15), Holtek (HT68xx) - MPUs: Analog Devices (ADSP-2156x SHARC), Qualcomm (Snapdragon 625/425/610/845), Allwinner (A64, A33, H3, H6 series), NXP (I.MX6/I.MX7/I.M8) , ST(STM32MP1) - SOMs: NVIDIA Jetson nano, NVIDIA Jetson Orin Nano, NVIDIA Jetson AGX Orin, Toradex (Colibri iMX6, IMX7, IMX8), Raspberry pi (CM3, CM4 modules), Inforce (Qualcomm Snapdragon 410, 820, 845 SOM), 8devices (Mango on Qualcomm IPQ6000/IPQ6010 Soc), Sensiedge(SensiBle 1 and 2, SensiLora) Service->Software: - Languages: Java, Kotlin, C#, C/C++, Python, Java Script - Diagrams: Block, UML, Workflow, APIs - Interfaces: USB, Ethernet - Protocols : MQTT, HTTP, FTP, Modbus TCP/RTU, SNMP, TCP/IP, UDP/IP, DLMS, custom protocols - Wireless: BLE, WiFi, UWB - Security: AES, SSL/TLS - Libs and frameworks: GStreamer, Paho MQTT, WolfSSL (SSL/TLS), Mbed TLS(SSL/TLS), QT framework, Xamarin Forms and Maui, ASP .NET Core and web development, React (web UI development), SQLite DB, FireBase DB, Mong DB, InfuxDB DB, Room, TensorFlow, Node.js - OS: Android, IOS, Linux, Windows
    Featured Skill Bluetooth
    RFID
    Altium Designer
    FreeRTOS
    Robotics
    ARM Cortex-M
    Firmware Programming
    Qt Framework
    Real-Time Operating System
    PCB Design
    Arduino
    NFC
    Embedded C
    Embedded Linux
    MQTT
    C++
  • $30 hourly
    ✅ TOP Rated ✅ 100% Job Success ✅ 5 Star Reviews ✅ 12+ Years Experience ✅One of the Best BLE | Bluetooth | Beacons | NFC | RFID | QR Code | Custom Sensors/ Gateway | WiFi | LoRa | nb-IoT based Service Provider 🚀 With over 12+ years of extensive experience in IoT-based Hardware, Firmware, Mobile, and web app development, I specialize in delivering cutting-edge solutions for diverse industries. My expertise spans across PCB designing, layout, Firmware programming, Android, iOS, Flutter, React for mobile applications, and Python, PHP, and Java for web applications. I am adept in Web APIs, backend architecture, SQL, NoSQL, and third-party API integrations, ensuring robust and scalable systems. ----------------------- 🎯 Domain served ------------------------ ✦ Healthcare & Fitness: Remote patient monitoring, smart medical devices, fitness tracking. ✦Automotive: Connected vehicles, Logistics & fleet management. ✦Automation: Smart home, industrial automation. ✦Agriculture: Precision farming, environmental monitoring, automated irrigation systems. ✦ Sports: Wearable technology, performance tracking. ✦Retail/Proximity: Beacon technology, personalized customer experiences, indoor routing, indoor navigation. ✦ Smart City & Environment: Waste management, Environmental monitoring, smart infrastructure ✦Industrial: Power automation, Smart Factory, Supply Chain Optimization, Worker Safety & monitoring - Construction, Remote monitoring & Control. ✦ Space: Satellite communication, telemetry systems. ✦ Defense: Rugged hardware and firmware, secure communication, surveillance systems, and tracking systems. ---------------------------------- 🎯 Key Projects in Domains ----------------------------------- ★ Healthcare Monitoring System: Developed a comprehensive mobile and web application for remote patient monitoring, integrating BLE and WiFi-enabled medical devices for real-time data collection and analysis. ★ Fitness Tracking Application: Developed a fitness tracking application that integrates with wearable devices to monitor and analyze user health and fitness data in real time ★ Connected Vehicle Platform: Engineered a robust IoT solution for fleet management, utilizing Bluetooth and GPS technologies for real-time tracking and data analytics. ★ Smart Home Automation: Created an intuitive mobile app for home automation, supporting various wireless protocols like Zigbee and RF for seamless device control. ★ Agricultural IoT Solution: Created an IoT system for precision farming, integrating environmental sensors and automated irrigation to optimize crop yield and resource usage. ★ Retail Proximity Marketing: Implemented a beacon-based proximity marketing system to enhance customer engagement and personalized shopping experiences. ★ Industrial Asset Tracking: Developed an indoor navigation and asset tracking system using BLE and RFID technologies to optimize asset management and enhance operational efficiency. ----------------------- 🔑Technical Skills ----------------------- ➠Mobile App Development: ◉ Platforms: Android, iOS, Flutter, React Native ◉ IoT Specializations: BLE, Bluetooth, Beacons, NFC, RFID, QR Code, Custom Sensors/ Gateway, WiFi ➠Web App Development: ◉Languages: Python, PHP, Java ◉Frameworks: Django, Flask, Laravel, Spring ➠Databases: SQL (MySQL, PostgreSQL), NoSQL (MongoDB, Time Series, Firebase) ➠ APIs Development: RESTful APIs, GraphQL ➠Backend Architecture: Microservices, Serverless architecture, Cloud computing AWS Services: EC2, S3, Lambda, RDS, DynamoDB, IoT Core, API Gateway, CloudFormation, CloudWatch ➠Hardware & Firmware Development, and Testing: ◉ Hardware: Product Designing, PCB designing, prototyping (Sample devices), and Mass Manufacturing on request. ◉ Firmware: Development for various microcontrollers and processors ➠IoT Expertise: ◉ Wireless Interfaces & Protocols: BLE, BT5, Mesh, LoRA, IrDA, CIR, RF, nb-IoT. ◉ Microcontrollers & Microprocessors: Qualcomm, Nordic, Texas Instruments, Cypress Semiconductor, Espressif Systems, NXP Semiconductor ------------------------- ⭐Why Choose Me? -------------------------- ◉ Proven Expertise: Over a decade of experience in IoT, mobile, and web app development. ◉ Innovative Solutions: A track record of developing innovative and scalable IoT solutions across multiple industries. ◉ End-to-end Service: Comprehensive service offerings from hardware design to software development and deployment. ◉ Client-Centric Approach: Dedicated to delivering solutions that meet client needs and drive business growth. Let's collaborate to transform your ideas into reality with cutting-edge IoT solutions. Feel free to reach out for a detailed discussion of your project requirements.
    Featured Skill Bluetooth
    NoSQL Database
    Python
    Product Development
    Internet of Things
    Wearable Technology
    nRF52
    NFC
    Firmware
    Hardware Design
    React Native
    Flutter
    iOS Development
    Android App Development
  • $20 hourly
    I am an experienced Embedded Software Engineer specializing in IoT (Internet of Things) technologies with a strong background in developing systems that integrate WiFi, Bluetooth, LoRa, and Embedded Linux. With a passion for creating innovative and efficient solutions, I have a proven track record of successfully designing, implementing, and optimizing embedded software for a wide range of applications. My expertise lies in developing firmware and software for IoT devices, including sensor nodes, actuators, and wearable devices. I have a deep understanding of wireless communication protocols such as NFC, WiFi and Bluetooth, enabling me to design and implement robust and secure connectivity solutions. Additionally, my experience with LoRa (Long Range) technology allows me to develop low-power, long-range communication solutions suitable for IoT deployments in remote and challenging environments. I am proficient in programming languages such as C, C++, and Python, and I am well-versed in embedded systems development using Real-Time Operating Systems (RTOS) and Embedded Linux. My proficiency in Embedded Linux allows me to develop software that leverages the power of Linux, including device drivers, kernel customization, and system-level optimizations. In my previous roles, I have successfully collaborated with cross-functional teams, including hardware engineers, system architects, and product managers, to deliver high-quality embedded solutions. I am experienced in the full software development lifecycle, from requirements gathering and architecture design to implementation, testing, and deployment. Key Skills: - Embedded software development for IoT devices - NFC, WiFi and Bluetooth communication protocols - LoRaWAN (Long Range) technology for long-range, low-power communication - Proficiency in C, C++, and Python programming languages - Real-Time Operating Systems (RTOS) - Embedded Linux development, including device drivers and system-level optimizations - Full software development lifecycle expertise - Collaborative team player with excellent communication and problem-solving skills If you're seeking an innovative and experienced Embedded Software Engineer with expertise in IoT, WiFi, Bluetooth, LoRa, and Embedded Linux, I am confident that my skills and experience make me a strong candidate for your project or organization. I am passionate about pushing the boundaries of embedded technology and delivering high-quality solutions.
    Featured Skill Bluetooth
    ESP32
    AWS IoT Core
    Embedded Linux
    Industrial Internet of Things
    AWS IoT Device Management
    Embedded C
    Wireless Communication
    Embedded System
    Home Automation
    Embedded Application
    Image Processing
    Machine Learning
    Data Science
    Computer Vision
  • $57 hourly
    Good working day! I'm here to provide systems work, live, update, and development. I want all the products I develop see the light of day, sell successfully, and become better for users and owners. If you ask me what is the meaning of life, I'll answer – in programming. So, my job is programming, my hobby too. By the way, if you need a first-class programmer – I'm here. I’ve been providing excellent firmware development services for over 10 years. It confirms my status 100 % TOP rated + on Upwork. Perfectly functioning devices and satisfied customers will speak better for me. Do you want to save your time on pointless meetings where engineers ask you what to do instead of doing it? Do you want to increase your income through our productive cooperation? Do you want a perfect, functioning, advanced product that you and your customers will like? I'll help you find a solution for your problems as soon as possible to implement them at a high level. The main goal is to help you achieve great success and make results. The most important thing is the product. It will be innovative, progressive, fresh, and efficient. I'll develop firmware, support it, and add new features, thus improving the product and the owner's profit. I'm always open to communication and find it useful. The more feedback I receive from you, the more I'll give you in return. Then I would like to tell you exactly how the cooperation goes. And now you can look at reviews of my work left by my clients on Upwork. I want you to understand the most important benefits that I can provide you are time and freedom. I can independently make decisions without disturbing the customer. You can go about your business while your project is running. At the same time, I work on technical tasks and take responsibility for my actions. So, I offer long-term cooperation which means the full cycle of device development and support. Please note that the latest versions are released as soon as new features are added. Every next release brings us closer to the final version of the device. Eventually, I would like to give you a guarantee. Guarantee of 100% satisfaction with the result. Unfortunately, my resources are limited, so I don't take on many projects. If you have a clear understanding and vision of your project and want to start right now, just write to me. Let's talk, discuss, make a plan and grow your business. If you still have doubts about something, then I have a consultation service – where we’ll analyze all the issues together that will help you see the future of your project, understand the next steps, and possibly start our cooperation.
    Featured Skill Bluetooth
    AWS IoT Core
    TCP/IP
    Firmware Programming
    Firmware
    C
    Real-Time Operating System
    Embedded System
    nRF52
    Arduino
    Embedded C
    Microcontroller Programming
    STM32
    ESP32
    AVR Microcontroller
  • $30 hourly
    As a highly skilled and experienced Embedded Software Engineer with 7 years of experience in the automotive industry, I have a proven track record of designing and developing software for embedded systems, including hardware, device driver, firmware, and applications for PC and iOS. I have strong expertise in programming languages such as C/C++, ASM, C#, Objective C, shell script, Swift, and a wide range of microcontrollers such as MCU, SoC, ARM, SH, AVR, PIC, ESP, TI CC25xx, TI CC32xx, ESP32, ESP8266. I have also developed deep knowledge in operating systems such as QNX, Linux, and RTOS such as FreeRTOS, µC/OS-III, Zephyr. My skills in embedded GUI development using Qt, uGFX, TouchGFX, and debugging tools such as U-link, Lauterbach, E10A, E1, Segger Jlink, DStream, I-Jet, GDB enable me to deliver robust and high-performance software solutions. As a former Senior Embedded Software Engineer and Team Leader, I have successfully led cross-functional teams of software engineers to deliver quality projects on time and within budget. I have also worked with various industry and automotive protocols such as CAN, LIN, Flexray, SAE J1939. Furthermore, I have experience with AWS Services, AWS IoT, and AWS Lambda, and I am always eager to learn emerging technologies and trends in the field of embedded software development. With my expertise and proven track record, I am confident that I can contribute to any organization seeking a highly skilled Embedded Software Engineer.
    Featured Skill Bluetooth
    Automotive Engineering
    Driver Development
    QML
    Qt Framework
    Linux
    FreeRTOS
    Zigbee
    nRF52
    NFC
    STM32
    ESP32
    Embedded C
    Python
    Embedded System
  • $70 hourly
    🇺🇦 🌍 Ukrainian based in London ✅ 12+ years of experience in different technologies. 🚀 Application from idea to release ⌨️ Post-release maintenance and support 📱 30+ successfully developed applications ✅ Upwork Verified Top Rated Plus Developer ⭐⭐⭐⭐⭐ rating Welcome to my profile! With over a decade of dedicated development experience, I specialize in creating cutting-edge applications that deliver user-friendly, engaging, and performant experiences. My proficiency in product development enables me to bring any app idea from concept to launch seamlessly. My approach is collaborative and transparent, ensuring that communication is clear and expectations are aligned from the outset. I pride myself on my ability to solve complex problems and adapt to new challenges, which is reflected in the diverse range of projects in my portfolio. Clients appreciate my commitment to quality and attention to detail, whether I'm working on innovative startups or established enterprises. My goal is to not only meet but exceed your mobile app development needs, providing post-release support to ensure your application evolves with your business. I am Upwork Verified and have a track record of success, with consistent five-star feedback. If you're looking for a reliable, skilled, and proactive mobile developer, let's connect and bring your vision to life.
    Featured Skill Bluetooth
    Project Management
    FinTech
    Dart
    User Authentication
    Smartphone
    Chat & Messaging Software
    JavaScript
    Swift
    Flutter
    Java
    TypeScript
    Android
    iOS
    Kotlin
    Native App Development
  • $60 hourly
    I'm a Mobile App Developer with over 15 years of experience delivering high-performance iOS and Android apps. My expertise spans Swift, Kotlin (Dart), Flutter, and React Native. I have successfully handled many projects end-to-end, and I can help you develop apps from scratch or upgrade existing applications. 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝘆 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: ✔️ Real Estate ✔️ Telehealth ✔️ Education ✔️ Retail ✔️ Mobility ✔️ Ecommerce ✔️ Fintech ✔️ Food & Beverages ✔️ Healthcare ✔️ Market Research ✔️ Lifestyle 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀 𝗪𝗲 𝗦𝗽𝗲𝗰𝗶𝗮𝗹𝗶𝘀𝗲 𝗜𝗻: Native Development: •OS: RX-Swift, Swift, Objective-C •Android: Kotlin, Java Cross-Platform Development: •React Native •Flutter (Dart) Web Services & Device Integration: •XML/JSON, REST/SOAP, GraphQL, BLE, iBeacon, NFC Specialized Skills: •Image Classification, Object Detection, Speech Recognition, Text-to-Speech, Barcode Scanning, OpenCV Databases & Firebase: •SQLite, Firestore, Realm, CoreData, Real-time Database, Crashlytics, Performance Monitoring, Dynamic Links, In-App Messaging Media Streaming & AWS Services: •M-JPEG Streamer, GStreamer, Larix Broadcaster, Wowza, VLC SDK, Rekognition, SageMaker, Lambda, Polly Mapping & ML/AR: •Google Maps, Foursquare, GPS, OpenStreetMaps, MLKit, ARKit, AutoML Vision Edge DevOps: •CI/CD, Docker, Kubernetes, Jenkins, AWS CloudFormation, Azure, Terraform 𝙋𝙖𝙨𝙨𝙞𝙤𝙣𝙖𝙩𝙚 𝙖𝙗𝙤𝙪𝙩 𝙩𝙪𝙧𝙣𝙞𝙣𝙜 𝙘𝙤𝙢𝙥𝙡𝙚𝙭 𝙞𝙙𝙚𝙖𝙨 𝙞𝙣𝙩𝙤 𝙨𝙪𝙘𝙘𝙚𝙨𝙨𝙛𝙪𝙡 𝙢𝙤𝙗𝙞𝙡𝙚 𝙖𝙥𝙥𝙨. 𝙇𝙚𝙩'𝙨 𝙘𝙧𝙚𝙖𝙩𝙚 𝙨𝙤𝙢𝙚𝙩𝙝𝙞𝙣𝙜 𝙖𝙢𝙖𝙯𝙞𝙣𝙜 𝙩𝙤𝙜𝙚𝙩𝙝𝙚𝙧! Best Regards, Qaran
    Featured Skill Bluetooth
    Smartphone
    Apple Xcode
    In-App Purchases
    Location-Based Service
    VoIP
    Hybrid App Development
    Android App Development
    iOS Development
    Mobile App Development
    Twilio API
    WebRTC
    Kotlin
    React Native
    Flutter
    Swift
  • $45 hourly
    As a Software Engineer and CEO of SLM Software, I combine technical expertise with strategic leadership to deliver scalable solutions in fintech, healthcare, and business automation. My journey in software development began in 2009 after graduating from Computer Academy Step. I earned an M.Sci in Computer Science in 2017 and enrolled in a Ph.D. program at Zaporizhzhia National University. Over the years, I’ve worked on diverse projects — from blockchain technologies and secure payments to AI-powered applications showcased at IDFA Doc Lab and MOMA. At SLM Software, we specialize in custom software tailored to real-world business needs. Our focus includes secure payment systems, AI-driven tools, and cloud services that enhance efficiency and reduce risk. As CEO, I oversee: ✅ Strategic planning and business partnerships ✅ Project quality control and delivery ✅ Team leadership in software development What We Do: 🔹 Custom Software Development — Solutions for unique business challenges 🔹 Fintech & Healthcare Innovations — Secure payments, healthcare analytics 🔹 AI & ML Integration — Automating workflows and optimizing data 🔹 Cloud Services & API Integration — Scalable, future-proof solutions Whether you're looking to optimize financial processes or automate workflows, we deliver solutions with real impact.
    Featured Skill Bluetooth
    AWS Development
    Full-Stack Development
    Web Design Plugin
    Data Extraction
    Data Analysis
    ETL Pipeline
    Scrapy
    Data Science
    Data Scraping
    Natural Language Processing
    Data Mining
    Python
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How much does it cost to hire a freelance Bluetooth developer?

Bluetooth developers help create useful applications and hardware solutions to connect users with their devices, share information, and ease access to many modern systems. While Bluetooth applications initially linked computers and mobile devices, they have expanded exponentially to all sorts of systems such as gaming, healthcare and wellness, payments (PayPal and Stripe), geolocation, and social media. 

Bluetooth is also utilized in wearables (smartwatch notifications), home appliances, smart homes/buildings, smart lighting, and even systems that track a business’s assets, employees, or visitors. 

It was Bluetooth technology that originally facilitated wireless connections for both mobile and stationary devices over short distances for purposes of data transmission or to create wireless networks. 

Bluetooth also links computer peripherals (such as a printer, speakers, or a mouse), enables real-time voice and data transmissions (data, video, image, and music files), and serves as a networking device between Bluetooth-enabled devices (laptops, notebooks, PCs, mobile phones, personal digital assistants, and smartwatches). 

The expense of hiring a freelance Bluetooth developer depends on several factors. It’s important to have a detailed description of your mobile app development project, including your preferred attributes and your ultimate app along with your projected budget. Determine whether you need native apps—both a Google Android app and an Apple iOS app—for better performance, or if a less expensive cross-platform app would be adequate.

Knowing many of these factors ahead of time makes it easier for your prospective Bluetooth freelancer to accurately determine whether their skills fit your project, how much time it will take, and if you have reasonably budgeted for your app ambitions. Developing Bluetooth mobile applications can cost anywhere from $2,000 into the tens of thousands of dollars.

If you are unclear or lack the technical savvy to develop a plan up front, a more experienced freelance Bluetooth developer may be better able to help you find the right solution for a high-quality app.

Experience and expertise 

Bluetooth developers need to have expertise in various programming languages such as Java, JavaScript, and Swift (along with frameworks such as Angular, Flutter, and React). A strong knowledge of APIs (application programming interfaces), hardware/software compatibility, connection processes, and security considerations are essential. 

Hiring a Bluetooth freelancer on Upwork can cost anywhere from $25 to more than $100 per hour, depending on experience, versatility, location, and project skills. But rates are heavily influenced by the level of expertise and location.

Scope of work

The complexity of your Bluetooth applications will affect the experience you need in your developer and the cost. The user experience (UX) is critical for Bluetooth apps. Many things can go wrong when establishing Bluetooth connections between devices, and the complexity of developing most Bluetooth-driven apps should not be underestimated.

Entry-level freelancers, often the low-cost option, might be fine for simpler apps. Intermediate- to expert-level Bluetooth freelancers with multiple years of experience bring greater skill sets, including project management and product development. 

These complex interactive applications often require critical decision-making up front and difficult bug fixes later. They also cost more, though their experience likely makes them more efficient and better able to adequately troubleshoot inevitable problems with Bluetooth development.

Timeline 

With most freelancers charging an hourly rate, more complex projects can become very time intensive and expensive. More experienced developers, while more expensive, could minimize your development time and heartache in the long run. Consider your budget and project complexity. Then strike a balance between cost and experience as necessary.  

Geography 

Location will have a significant effect on the rate that a Bluetooth freelancer will charge. For example, a developer in a large coastal city with a high cost of living is likely to charge more than one in a small city in the Midwest. 

Freelancers are most expensive in North America and Western Europe, while contractors in Eastern Europe, Latin America, and many Asian markets often charge far less. Evaluate during interviews the possible effects of communicating with offshore developers, both in terms of time lag and language skills.

Popular Bluetooth related systems  

Health and wellness

Bluetooth apps can connect your phone or smartwatch to monitor and facilitate workouts, link to fitness equipment, track your performance, and monitor aspects of your health. 

Smarthomes

Bluetooth enables home automation systems such as lights, heating and cooling, appliances, and security systems to be controlled from a smartphone. 

Connected in the car

Bluetooth for both Android and iOS has become as common as power windows in new cars. It links to your phone to enable hands-free calls, narrate and listen to text messages, play music, and link to your navigation system.

Find Bluetooth freelance talent at the world’s work marketplace 

When you need to hire a top Bluetooth freelancer, scan the profiles on Upwork to see these freelancers’ skills and read customer reviews that will assist you in finding the right fit for your project.

Upwork is not affiliated with and does not sponsor or endorse any of the tools or services discussed in this section. These tools and services are provided only as potential options, and each reader and company should take the time needed to adequately analyze and determine the tools or services that would best fit their specific needs and situation.

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