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4.7/5
based on 1,249 client reviews
  • $95 hourly
    • 5.0/5
    • (37 jobs)
    Professional Summary: Electrical Engineer experienced in developing electronic products for medical, industrial and aerospace/defense programs. Responsibilities include application of electrical hardware experience, analog / digital circuit design including simulation, validation, project management, efficient documentation including new product cost and excellent oral / written communication skills.
    Featured Skill Bluetooth
    Analog Electronics
    Altium Designer
    Microcontroller Programming
    Digital Electronics
    Embedded System
    Firmware Programming
    Testing
    PCB Design
    Hardware Design
    ESP32
    Hardware Prototyping
    Electronic Design
    Product Development
    Product Design
  • $40 hourly
    • 5.0/5
    • (68 jobs)
    I am an Electronics Engineer with extensive Industrial experience in Electronics hardware design. My areas of expertise include Multi-Layer PCB design, Product development and Firmware design. A well-organized, disciplined and innovative full-time freelancer having excellent projects history on Upwork as a TOP RATED consultant with multiple repetitive clients. I have developed various industrial and commercial based products from idea till mass-production.
    Featured Skill Bluetooth
    RF Design
    Hardware Design
    Integrated Circuit
    Eagle
    KiCad
    Embedded System
    Product Design
    Altium Designer
    Engineering Design
    PCB Design
    Circuit Design
    Internet of Things Solutions Design
    Electronic Circuit Design
    CAD
  • $40 hourly
    • 4.5/5
    • (7 jobs)
    Seasoned Embedded Systems, IoT Devices, and Mobility developer with expertise in libraries, kernel, bootloader, OTA, DAQ, LowPower, etc development Project experience includes Wearable, LowPower Mesh, Medical, Access Control, GPS Tracker, Beacon Localization, Education, Industrial Automation, Home Automation, and IoT sensor DAQ devices. Hands-on Microcontrollers - ARM CORTEX M0/M3/M4/M33 - nRF54H20, nRF54L15, nRF5340, nRF52840, nRF52832, nRF51822, nRF9160. - STM32 F0/F1/F2/F4/L4, - ESP32/C3/S3/C6, - CYPRESS PSOC4/6, SAMD21 - Chinese LowCost MCU e.g. Puya, GigaDevice, HK, MM, etc. Hands-on SBCs & Compute Modules - Raspberry Pi 3/4, Pine A64, Quectel SC200R Peripherals - ADC, SPI, TWI/I2C, UART, USART, USB, RS485, I2S, CAN - BLE, WIFI, LoRa, WS2812B, SubGHz IoT Protocols - MQTT, ZeroMQ, REST, WEB RTC, OpenThread, Matter, WirePas Software - PSoC creator, Atmel studio, Cube IDE/MX, VSCode - OpenOCD, GDB, CMake, Makefile, Git Programming - Embedded C, Flutter, JAVA, NodeJS, Python, Kotlin (Beginner level)
    Featured Skill Bluetooth
    ESP32
    STM32
    nRF52
    Zephyr
    ARM Cortex-M
    FreeRTOS
    Firmware Programming
    Internet of Things
    Hardware Prototyping
    PCB Design
    Embedded C
    Flutter
    Embedded System
  • $32 hourly
    • 4.9/5
    • (39 jobs)
    Hello world!!! My name is Hiep, I am an embedded hardware design engineer. My expertise is designing hardware circuits, assembling, and testing the quality of the circuit. Give me your requirements or your product specification, and then we can discuss the timeline, cost, and how we can work together. Also, I have more than +3800 working hours, 100% Job Success on Upwork, and more than 8 years of experience in designing hardware for IoT Products, Consumer Products, and Edge devices, so I think I can use my experience to complete your project with the best result. + MY WORKFLOW: - Receive your detailed requirements or specifications, discuss what you want and what I need to do. - Design block diagram for the circuit: needs to be very detailed, it will decide what part will be used in the project. - Design schematics: follow the block diagram to design the schematic for the product. - Design PCB Layout: with requirements about Mechanical Design and Industrial Design, I will do the PCB Layout to fit with your Mechanical Design to achieve the best performance. - Extract production data: BOM, CAD, GERBER, DESIGN, ASSEMBLY GUIDELINE, IMPEDANCE CONTROL REQUIREMENTS, ... + MY TECHNICAL EXPERIENCES: - SoC/ MCU: STM32F0/F1/F2/F4/F7/H7, STM32L1/L4, MSP430, MSP432, ATMEGA, ATSAM, PIC, ESP8266, ESP32, CC2530, CC2538, nRF52810/ nRF51822/ nRF52832/ nRF52840/ nRF5340, ... - Sensor: light sensor, CO, Smoke Sensor, Dust Sensor, Air Sensor, pH sensor, IMU sensor, Accelero, Gyro sensor. - Biosensor SPO2/PPG (OB1203, MAX32664 sensor hub, MAX86176, MAX86178, AFE4950…), Skin temperature (AS6221, MAX30205, MAX30208), ECG (ADS1292, ADS1293, ADS1294, ADS1298, MAX86150, MAX30003,…), Heart rate, Blood pressure,... - True wireless earbuds, headsets and speakers, Bluetooth ® LE Audio standard from Qualcomm: QCC5141, QCC5171, QCC5181,... - Wireless communication: DA16200 BLE MCU, WiFi, BLE4.0/4.1/5.2, Lora, Zigbee, NFC, eSIM, GNSS/GPRS/4G/LTE Module: SIM900A, SIM908, Quectel MC60/M95/EG91x, SIM7600, SIM7080, SIM7090G... - 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: 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). - Some industry circuits: Modbus, voltage to current/current to voltage converter, isolation interface, current/voltage measurement,… - Ultra-low power consumption device hardware developments: Ultra-low locker using non-rechargeable battery with life-span of up to 10 years, some wireless devices with 2 years operation with 620mAh battery,… - Power electronics: wireless charger, high power PD charger, BMS, PMIC, OV/OC/UV, high current PCB (30 – 100A),… - Mass Production: Discussing, processing steps, and managing the manufacturing process of PCBs, PCBAs, and assembly devices, processes in production include: discussing with the bare PCB factory, building self-test documents, production testing PCBAs at the factory, documenting and testing, and managing the device testing process after assembling the device. + Some of the products that I have designed and released to the market: - IoT products: Wearable devices tracking the biological index, Devices control hub over Wifi, Internet, Bluetooth, OBD devices,... - Smart Home Product: Design Home Gateway with Ethernet, WiFi, Zigbee, TFT LCD, ... Design Smart Switch with capacitive touch, Zigbee communication, 220VAC/110VAC load control, ... - Tracking Device: Using 3G/4G with GPS, this device is used for personal tracking ... and a lot of other products ... I hope to work with you, to help you complete your project and release your product to the market Best regards Hiep Le
    Featured Skill Bluetooth
    ESP32
    C++
    STM32
    Embedded System
    PCB Design
    Hardware Design
    Embedded C
    Altium Designer
    Electrical Layout Design
    Internet of Things Solutions Design
    Firmware Programming
    Hardware Prototyping
    Product Design
  • $55 hourly
    • 4.4/5
    • (46 jobs)
    ⭐Innovation meets Ingenuity in Electronics Engineering With nearly two decades of experience in electronics engineering, I specialize in delivering solutions that blend innovation and ingenuity. My expertise covers circuit design, analog/digital electronics, embedded systems, signal processing, manufacturing, and sourcing across diverse domains like IoT and telecommunications. ⭐ Please note: I can best assist you if you can provide clear and specific work requirements and scope. ⭐⭐⭐⭐⭐About Me⭐⭐⭐⭐⭐ Over 20 years in electronics design, manufacturing, and Supply Chain Management (SCM) 13 years with Fortune 500 companies Flextronics and Huawei Cross-functional team experience in the Middle East and North Africa (3 years) Founder, PCBLOOP Technology and BTS, an engineering service company with 150 employees Lead a team of 24 engineers and technicians ⭐⭐⭐⭐⭐Services I Offer⭐⭐⭐⭐⭐ (PS:-Company URL: pcbloop.com and electronicspcbs.com) • Electronics product prototype development, manufacturing, and consultancy • Detailed preliminary research report for your product idea and concept • Architecture design and technology stack selection • Hardware platform and key components selection • Prototype development based on preliminary research • Commercial electronics product development offering end-to-end services including: ⚡⚡⚡R & D ⚡⚡⚡ - Architecture design - Hardware circuit design - PCB design - Firmware development - Software design - Device backend development - Web or apps development - EMI/EMC simulation - Thermal simulation - Mechanical design - Industrial design - Mold design - Deployment of backend/frontend on server - Prototype hardware and software debug/testing - Design for manufacturing/testing/assembly review ⚡⚡⚡Production⚡⚡⚡ - Product prototyping - PCB fabrication - PCB assembly - 3D printing - Plastic mold injection - Component & parts sourcing and purchasing - Turnkey/non-turnkey project contract manufacturing - Mass production/lean engineering services ⭐⭐⭐⭐⭐Technology Related⭐⭐⭐⭐⭐ • Development boards(SBCs) [Raspberry Pi, Intel Joule, OrangePi, Nvidia Jetson, Rockchip, etc.] • Microcontrollers [Arduino family, ATMega, Atmel, ARM, ESP8266, ESP32, STM32, etc.] • Hardware protocols [RFID,NFC,ZigBee,NB-Lot,USB, HDMI, Ethernet, Wi-Fi, BLE, PCIe, VGA, RS-232, I2C, SPI, UART, etc.] • Software protocols [GSM,CDMA,WCDMA,LTE, TCP/IP,SNMP, MQTT, UDP, RTP, RTSP, NFS, etc.] • OS [Windows, Linux systems, OS embedded Linux, Android, iOS, FreeRTOS, FreeBSD, etc.] • Programming languages and scripting [Python, C/C++, Javascript, BASH, etc.] • Web technologies [ReactJS, AngularJS, Node-RED,etc.] • Deployment and versioning control suites [CVS GitLab, Git, GitHub,etc.] • IoT platforms [Self-hosted platforms, AWS IoT, Azure IoT,etc.] • IAE platforms[Siemens SIMATIC, Omron Sysmac,etc] ⭐⭐⭐⭐⭐Category of the Product⭐⭐⭐⭐⭐ • Consumer and smart IoT electronics: [Wearable smart devices, smart home devices, industrial IoT devices, smart health devices, smart pet products, charger and power devices] • Industrial automation equipment: [Controlling and monitoring (water, electricity, gas, temperature, humidity, pressure), motors and drive, industrial networks, measurement instruments] • Automotive industry: [In-car entertainment systems, in-car navigation, automotive lighting] • Internet and Telecom:[Mobile phone, Internet and Satellite Communications] ⭐⭐⭐⭐⭐Client Testimonials⭐⭐⭐⭐⭐ "Xiaolin’s team is very professional and hardworking... always satisfied with the jobs they delivered." - Allen Geli, CEO of Taotol "Frankie is an excellent engineer and supervisor... expecting my next opportunity to work with Frankie." - Andrew Ruess, Huawei Hardware R&D manager "Xiaolin is the best guy in the hardware engineering area... thank him for his outstanding support." - Mike Durkan, Engineering Director of Cisco Tags: Electrical Engineering, Electronics Engineer, 3D modeling,ID,Firmware, PCB layout, Schematics, Altium Designer, IoT, Power Electronics, Bluetooth, BLE, RF, TI,FPGA, SoC, VHDL, Verilog, Xilinx, Altera, C, C++, MCU, RTOS, prototype, validation, Enclosures, BMS, SolidWorks, Android, iOS, Java, Apps, Database, AWS, Python, ESP32, Arduino, PIC, NXP, STM32, LCD, Raspberry Pi, Wi-Fi, Prototyping, WAN, Assembly, Motor Driver, JLC.
    Featured Skill Bluetooth
    Multilayer PCB
    Circuit Design
    RF Design
    Lean Manufacturing
    Hardware Design
    Firmware Programming
    Altium Designer
    Electrical Engineering
    PCB Design
    Sourcing
    Electronic Design
    WiFi
    Embedded System
    Prototyping
  • $45 hourly
    • 5.0/5
    • (3 jobs)
    Are you looking for a team of seasoned experts to help bring your software ideas to life? Look no further than our highly accomplished team of IT professionals! With years of experience in every facet of software development, we're passionate about delivering exceptional solutions from ideation to publication. Our portfolio speaks for itself, with hundreds of successful projects delivered to satisfied clients from all corners of the world. From tiny startups to top-tier enterprises, we're committed to helping businesses of every size achieve their software development goals, all while working within their budgets. Whether you're looking to maintain your solution or develop cutting-edge applications for iOS, Android, or the web, our team has got you covered. We're passionate about technology innovation and are constantly exploring new ways to push the boundaries of what's possible. At the heart of our mission is a commitment to delivering end-to-end digital solutions of the highest quality, building trust with our clients through our advanced care, rich practices, and ever-growing competency. The technologies we leverage for crafting full-fledged solutions are the following but not limited to: ✔ Cross-platform mobile development: Kotlin Multiplatform (KMM), Compose Multiplatform; ✔ Native iOS and Android development: Swift, Objective-C, Kotlin, Java; ✔ Web development: Angular, JavaScript, Typescript, React.js, HTML5/CSS3; ✔ Server-side: Node.js, PHP, Java, Kotlin. Managing a large portfolio of apps is no easy task, but our team has the experience, technical excellence, and team spirit needed to make your vision a reality. So whether you're dreaming of building a brand-new app from scratch or improving an existing one, we're here to help you every step of the way. Let's build something great together!
    Featured Skill Bluetooth
    API Integration
    UIKit
    SwiftUI
    Native App
    Mobile App
    Android App Development
    iOS Development
    Swift
    Kotlin
    UI/UX Prototyping
  • $40 hourly
    • 4.7/5
    • (63 jobs)
    It must be a hassle to develop mobile apps that are not only well functioned, blazing fast but also have to comply with Apple and Google guidelines. This daunting experience is entirely familiar to an experienced mobile developer like me. I have spent more than 7 years immersed in Apple iOS app development, witnessing iOS evolved from version 7 into 14 as of today. By servicing 5000+ Upwork hours delivering dozens of mobile projects, I know exactly how to bring my substantial experience to leverage your next innovative products, which includes but is not limited to: 📱 Build your app with the latest Apple iOS / Google Android SDK 📱 Setup mobile QC by adding any of unit tests, integration tests, automation tests... 📱 Setup mobile DevOps CI/CD pipeline using Bitrise, Fastlane... 📱 Assist in Apple and Google Play store submission and approval process 🤷‍♂ ️Something else missing? Feel free to throw it up to me. Challenge accepted! 🎖 Google Certified Associate Android Developer [ myup.work/hautt-aad ] 🎖 Scrum.org Certified Professional Scrum Developer [ myup.work/hautt-psd ] 📱 𝐈𝐎𝐒 ✅ 𝐀𝐑𝐂𝐇𝐈𝐓𝐄𝐂𝐓𝐔𝐑𝐄: MVVM, VIPER, RxSwift ✅ 𝐒𝐓𝐎𝐑𝐀𝐆𝐄: Realm, CoreData, Keychain, SQLite ✅ 𝐍𝐄𝐓𝐖𝐎𝐑𝐊𝐈𝐍𝐆: AFNetworking, Alamofire, Moya, Reachability ✅ 𝐈𝐌𝐀𝐆𝐄: SDWebImage, Kingfisher, AsyncImageView, Toucan ✅ 𝐓𝐃𝐃: Quick, Nimble ✅ 𝐎𝐏𝐒: Bitrise, Fastlane, TravisCI, TestRails, swiftlint, swiftformat 📱 Flutter ✅ 𝐀𝐑𝐂𝐇𝐈𝐓𝐄𝐂𝐓𝐔𝐑𝐄: Provider, BLoC, MobX, GetX ✅ 𝐒𝐓𝐎𝐑𝐀𝐆𝐄: Shared preferences, sqflite, sembast, Cookiejar, mmkv_flutter ✅ 𝐍𝐄𝐓𝐖𝐎𝐑𝐊𝐈𝐍𝐆: Dio, Flutter Downloader ✅ 𝐈𝐌𝐀𝐆𝐄: Cached Network Image, Bitmap, Photo View ✅ 𝐓𝐃𝐃: Mockito, Flutter Widget Test ✅ 𝐎𝐏𝐒: Bitrise, Fastlane
    Featured Skill Bluetooth
    Arduino
    nRF52
    ESP32
    Core Bluetooth
    Bluetooth LE
    iOS SDK
    Android
    Dart
    Flutter
    Kotlin
    Objective-C
    Swift
  • $37 hourly
    • 4.9/5
    • (20 jobs)
    🏅𝐓𝐎𝐏 𝐑𝐀𝐓𝐄𝐃 𝐀𝐈 𝐂𝐨𝐧𝐬𝐮𝐥𝐭𝐚𝐧𝐭🏅 💼 10+ years in 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭📱𝐢𝐎𝐒 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 | Swift 🤖𝐀𝐧𝐝𝐫𝐨𝐢𝐝 Development | Kotlin ⚛️𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞 | TypeScript | JavaScript 🦋𝐅𝐥𝐮𝐭𝐭𝐞𝐫 | Dart 🛠️𝐔𝐈/𝐔𝐗 Design 🌐𝐀𝐏𝐈 Integration 🔄𝐖𝐞𝐛 𝐀𝐩𝐩 Development 🔒𝐒𝐞𝐜𝐮𝐫𝐞 Coding Practices My last ten years have been dedicated to Mobile Application development. In my applications, I have worked with bluetooth, WI-FI, real-time tracking, SQLite database, REST API, Camera Recognition, & many more interesting features. Throughout these years, I have become much skilled in developing full feature apps in both Objective-C and swift (for iOS Apps) and Java & Kotlin for Android apps. Many of the apps I have worked on are very high profile with names you would recognize. Although I can easily develop all aspects of an iOS app & Android app from the networking layer to the front end, I am particularly good at mobile analytics and front-end development. I was a creative person before I became a developer. As such, I have an eye for design. I find that most clients appreciate this. Since I started into this field, I hone my skills every day with the help of professional practice to make the development process faster and qualitative. 🌐 𝐅𝐥𝐞𝐱𝐢𝐛𝐥𝐞 𝐀𝐯𝐚𝐢𝐥𝐚𝐛𝐢𝐥𝐢𝐭𝐲 ✔ 𝐀𝐝𝐚𝐩𝐭𝐚𝐛𝐥𝐞 𝐭𝐨 𝐲𝐨𝐮𝐫 𝐭𝐢𝐦𝐞𝐳𝐨𝐧𝐞 (𝐄𝐒𝐓, 𝐏𝐒𝐓, 𝐌𝐒𝐓, 𝐂𝐒𝐓) 𝐟𝐨𝐫 𝐬𝐦𝐨𝐨𝐭𝐡 𝐜𝐨𝐥𝐥𝐚𝐛𝐨𝐫𝐚𝐭𝐢𝐨𝐧. 💎𝐍𝐨𝐭𝐚𝐛𝐥𝐞 𝐏𝐫𝐨𝐣𝐞𝐜𝐭𝐬 I’ve worked across diverse domains, including but not limited to:- ✅ Video Interviewing & Résumé Parsing Platform ✅ Modern and intuitive online platform for accessing PPSR reports ✅ Platform for Event management ✅ Better Now Healthcare Platform: Questionnaire, Appointments ✅ MassTextNow: Text Marketing Platform ✅ Revenue management portal. ✅ Shipping container calculators. ✅ Document management mobile app. ✅ Job board apps (Web & Mobile). ✅ SaaS solutions for healthcare and homecare. ✅ Compliance and license management systems. ✅ Course booking and scheduling systems. ✅ E-learning and language learning apps. ✅ Boutique hotel and e-commerce websites. ✅ Event posting and chat systems. ✅ Bible reading apps with subscriptions and in-app payments. ✅ Travel deal and grocery delivery platforms. ✅ SaaS for survey creation and response management. ✅ Real estate platforms with MLS integration. ✅ Food delivery mobile applications. ✅ Custom e-commerce solutions for fine wines, greeting cards, and equipment rentals. ✅ PDF annotation web applications. ✅ Dating and classified listing websites. List of my skills that I will use to bring your project to perfection: • Java / Kotlin, • Android SDK; • Android Jetpack (Room, Navigation, WorkManager, Lifecycle); • Google AppEngine (Google Cloud Endpoints / Servlets); • Databases: SQL / Room Persistence, Realm; • Google API's (Maps, Drive, Tasks, Places); • Firebase Cloud Messaging(Android / Java Server), Database, Remote Config; • Google Cloud Storage / Database; • Material Design; • REST/JSON/XML; • Retrofit 2, RxJava, Dagger 2; • MVVM, MVP; • OpenCV; • Gtk3.0 / Vala; • Git; • Gradle / Maven My Skills and Services ____________________________ -Technologies: Android studio, React native, Flutter etc. - iOS Programming - Swift Programming - Android Programming - Mobile App Design - Parsing - Payment Gateway Integration - Apple Map, Google Map, GPS, GEO location Service - Bar code scanner, QR Code scanner - Database management - Graphics/icon Design For App. - Third-party Push notification API like Air push etc. - Third-party SDK integration - All types of Social APIs like Facebook, Twitter, Linked In, Instagram..... etc. - Analytic Tool - Multiple Contact Selection messaging - Push Notification - In-App Purchase - Architecture - Code Management - Submit App to AppStore, Google Play ✅ AI & ML Skills: • Machine Learning Models: Building and integrating ML models using TensorFlow, PyTorch, and scikit-learn. • Natural Language Process Redux, Mobx, Flux, Swift, Objective C,Java, Kotlin, REST API, Twillio, Firebase, Social Integrations, Native Android App Developer, iOS App Developer, Cross-Platform Flutter App Developer, Top Flutter Developer, React Native, Hire Best MERN Stack Developer, RESTful API Developer, API Integration, Frontend Developer, React.js, Backend Developer, Nodejs, Javascript, Figma, UI/UX Design, Prototype, In-app purchases, Location, Payment Gateway Integration, Apple Xcode, Android Studio, Push notifications, User authentication, User profile creation, QA, Unit Testing, Regression Testing, Dating App, Ecommerce App, Ride Booking App, 3rd Party SDK Integration, Realm, SQLite, MySQL, Firebase Cloud Firestore, Realtime Database, Kotlin, Swift, Java, Dart, SwiftUI, Twilio, Mapbox, HealthKit, Alamofire, Google Analytics, Amazon Web Services, DigitalOcean, Core Data, UIKit, MapKit, Phone, Full Stack Developer, iPad, OpenAI ChatGPT LLM
    Featured Skill Bluetooth
    Mobile App Design
    MERN Stack
    MEAN Stack
    React Native
    Flutter
    Android App Development
    Kotlin
    iOS Development
    Objective-C
    Swift
    AR & VR
    SaaS Development
    Artificial Intelligence
    Internet of Things
    Mobile App Development
  • $30 hourly
    • 4.6/5
    • (56 jobs)
    ✅ 100% Job Success Rate ✅ 100% Client satisfaction and provided 5 star ratings feedback ✅ 1200+ hours on Upwork ✅ 50+ projects delivered ✅ Excelling in delivering projects I’m a skilled Full-Stack IoT Developer with expertise in turning ideas into fully functional connected systems. From hardware integration to cloud infrastructure, I specialize in building end-to-end IoT solutions tailored to your unique needs. I have 8 years of Experience in IoT Domain.I am a passionate IoT developer with expertise in designing and implementing connected systems that bridge the physical and digital worlds. With hands-on experience in hardware prototyping, embedded programming, and IoT cloud platforms, I thrive in crafting scalable, secure, and efficient solutions for diverse applications. 💠💠What I Offer 💠💠 ✔️ Embedded Systems Development: Microcontrollers ( Arduino, Raspberrypi, ESP32 etc.), sensor integration, and firmware programming. ✔️ Programming languages Expertise: Python, C, C++, NodeJS ✔️ IoT Protocol Expertise: MQTT, RF, GSM/LTE, Wi-Fi, LoRa, and BLE communication. ✔️ Cloud & Backend Development: AWS IoT, Azure IoT Hub, Thingsboard, Firebase, or custom-built platforms for device management and data analytics. ✔️ Frontend & Dashboard Solutions: Real-time dashboards, web, and mobile apps for seamless user interaction. ✔️ Prototyping & Deployment: From proof-of-concept to scalable production-ready solutions. ✔️ I have strong hands-on experience and expertise with the Sierra Wireless Industrial IoT Gateways. ✔️ I have extensive hands-on experience and expertise in developing robust backend systems and REST APIs using Python Flask and Node.js. 💠💠AWS Services Expertise💠💠 🌟 I have strong hands-on experience and expertise with the following AWS services. ✔️AWS IoT ✔️AWS Greengrass ✔️AWS Kinesis Video streams ✔️AWS EC2 ✔️AWS Lambda ✔️AWS S3 ✔️AWS Dynamodb ✔️AWS RDS ✔️AWS Redshift ✔️AWS Glue ✔️AWS SNS ✔️AWS SES 💠💠AZURE Services Expertise💠💠 🌟 I have strong hands-on experience and expertise with the following AZURE services. ✔️AZURE IoT Hub ✔️AZURE IoT Edge 💠💠Why Work With Me? 💠💠 🌟End-to-End Expertise: I handle the entire IoT development stack, so you don’t have to coordinate between multiple developers. 🌟Custom Solutions: Every project is tailored to your requirements, ensuring efficiency, scalability, and user satisfaction. 🌟Proven Experience:I have successfully worked on diverse projects, including smart home systems, smart attendance systems, industrial automation, remote monitoring solutions, and real-time data acquisition from medical sensor-based devices. These projects demonstrate my ability to design and implement innovative solutions across various domains. 🌟Agile Communication: I prioritize transparency and regular updates to ensure smooth project collaboration.
    Featured Skill Bluetooth
    Internet of Things
    MQTT
    Android
    iOS
    Flask
    Amazon Kinesis Video Streams
    OpenCV
    Azure IoT HuB
    AWS IoT Core
    Embedded Linux
    Raspberry Pi
    Arduino
    C
    Python
  • $25 hourly
    • 4.7/5
    • (388 jobs)
    As an Engineer and inventor with over 15+ years of professional experience, I thrive on developing products that meet today's technical challenges head-on. My career has been a fusion of rigorous curiosity and precise technical skill, topping in a deep well of expertise that’s ready to tackle your project. Here's a snapshot of the domains I've grasped: Hardware Specialties 💻🔌 ✅ Embedded systems: programming, hardware design, and firmware development from concept to execution, including ARM-based controllers, DSP, and FPGA technologies. ✅ PCB Design: Expert in designing layouts and schematics, bringing circuits to life flawlessly. Wireless Communication: Proficient with Bluetooth, WiFi, RF protocols, and crafting IoT devices that empower smart connectivity. ✅ Sensor Savant: MEMS / IMU, GPS tracking, and biometric identification through RFID and fingerprint technology. ✅ Design Tools: Proficient with industry-leading software such as Altium Designer, Eagle CAD, KiCAD, Proteus, etc. Software Proficiency 👨‍💻📲 ✅ App Development: Crafting responsive, user-friendly web and mobile apps optimized for IoT solutions, enhancing functionality and user experience. ✅ Web Design & Deployment: Custom WordPress solutions, e-commerce, APIs, and more. ✅ Coding Languages: Kotlin, Java, C++, and C# form the foundational backbone of my custom software solutions. ✅ Data Handling: Experienced in CMS, API integrations, and web scraping for robust, seamless user experiences. Mechanical Design Services 🧰 ✅ Enclosure Designing: Merging technical requirements with aesthetic considerations to design custom enclosures that heighten the value and usability of electronics. 🚀 I'm excited to collaborate and bring your vision to completion, incorporating your innovative ideas with my technical know-how to leave a mark on the future. Tags: Electrical Engineer, Electrical Engineering, Electronics, Hardware, Firmware, PCB, PCB layout, Board Layout, Schematics, Altium Designer, IoT, Internet of Things, Power Electronics, Bluetooth, BLE, TI, Texas Instruments, FPGA, SoC, VHDL, Verilog, Xilinx, Altera, VHDL, C, C++, MCU, RTOS, Microcontroller, prototype, validation, Enclosures, BMS, SolidWorks, Android, iOS, Java, Swift, Mobile Apps, Database, React, AWS, Python, ESP32, Arduino, PLATFORMIO, PIC, NXP, Texas Instrument, Nordic, DIALOG, STM32, LCD, Raspberry Pi, Robotics, Oil and Gas Automation, RF, XBEE, Wi-Fi, BLE, Production, Prototyping, LoRa WAN, Manufacturing, Assembly, Motor Driver, Prototype, Wireless Module, Controllers, PLC, CREO, Industrial Designer, EASY EDA, KiCAD. Warm Regards, Huzaifa Ali
    Featured Skill Bluetooth
    PCB Design
    Multilayer PCB
    Electronic Design
    Electronic Circuit Design
    Internet of Things Solutions Design
    Digital Electronics
    React Native
    Circuit Design
    Altium Designer
    Arduino Firmware
    Raspberry Pi Firmware
    STM32
    ESP32
    Embedded System
    Microcontroller Programming
  • $35 hourly
    • 4.9/5
    • (33 jobs)
    Embedded Hardware Design Engineer with more than 12 years' experience in the field of circuit design and embedded systems. I have been working on Upwork since July 2020 and now a “top-rated” Embedded Developer. Here’s a recent client review: "Zahoor understood my problem easily and did a careful analysis of my firmware - despite it being poorly commented and complex. He really went above and beyond for this contract and I was really impressed with his skills and professionalism. If you are lucky enough to have Zahoor bid on your project, just select him, you will not be disappointed." I want you to know that your success is at the very core of my endeavor. And that you’ll be entrusting your product to a developer who is capable and willing to go the extra mile. More importantly, I’m a developer who stands by his word. I will offer unlimited revisions until you’re absolutely satisfied. You can invite me for a discussion about your product and I’d love to learn more about your product.
    Featured Skill Bluetooth
    Machine Learning
    Data Analytics & Visualization Software
    Data Science
    PCB Design
    Circuit Design
    AWS IoT Core
    GPRS
    MATLAB
    Embedded Application
    C
    C++
    Sensor
    Wireless Communication
    Python
  • $30 hourly
    • 4.8/5
    • (6 jobs)
    --------------------------------------------------------------------------------------------------------------
    Featured Skill Bluetooth
    Retrofit
    Firebase
    JUnit
    Data Binding
    JetPack
    Gradle
    Android SDK
    Clean Architecture
    Java
    Kotlin
    Android Studio
    Android App Development
    Android
    Mobile App Development
  • $32 hourly
    • 4.9/5
    • (80 jobs)
    I am a professional embedded software engineer with more than six years of experience. My current areas of expertise are IoT Applications & Embedded Systems Design, including embedded hardware/software. 𝐌𝐘 𝐒𝐊𝐈𝐋𝐋𝐒: - Know about MCU: Nordic, Silicon Labs, AVR, PIC, ESP, TI CC32xx, ESP32, Qualcomm QCC51xx, etc. - Have experience in programming languages such as C/C++, C#, Java - Solid knowledge of standard interfaces such as I2C, SPI, UART, and CAN. - Have experience using debugging tools such as Segger Jlink, CAN bus analyzer, and Logic analyzer. - IoT devices with wireless connectivity such as LTE, CAT-M1, NB-IoT, LoRa/LoRaWAN, BLE, WIFI, NFC - Good experience in AWS Service, AWS IoT, AWS Shadow, and AWS Jobs. - Good experience in Battery Management Systems based on BQ products from TI. - Good experience with Audio Codec chips. - Experience with AI/ML on Edge Impulse with nRF Connect - True wireless earbuds, headsets and speakers, Bluetooth ® LE Audio standard from Qualcomm: QCC5141, QCC5171, QCC5181,... We have worked with wearable devices and medical devices: - ECG 1, 3, 12 leads with ADS1292, ADS1293, ADS1298 - EEG with ADS1299 - Body temperature with MAX302025, MAX30208 - PPG with MAX86178, MAX86178 - SPO2 with OB1203, MAX32664 sensor hub - Vital signal with AFE4950 - OTA firmware update via Bluetooth/WIFI 🔑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
    Bluetooth LE
    Flutter
    Mobile App Development
    Zephyr
    Circuit Design
    Microcontroller
    Firmware Programming
    Electrical Engineering
    Electronic Design
    nRF52
    Microcontroller Programming
    STM32
    PCB Design
    ESP32
  • $40 hourly
    • 4.6/5
    • (64 jobs)
    I'm a Full Stack Developer, working for over 8+ years with developing, deploying, delivering the best effective solutions. 📌 Requirements gathering, analysis, and confirmation 🧠 Clear understanding of project goals and client needs 🎨 UI/UX design and detailed documentation 🔄 Agile development process for flexibility and speed 🤝 Coordination with product owners and stakeholders ✅ Quality assurance and rigorous testing 🌟Feel free to ask for more references. Contact me today to discuss your project!🌟 Thank you
    Featured Skill Bluetooth
    Mobile App
    User Authentication
    Chat & Messaging Software
    Payment Functionality
    SignalR
    Websockets
    Map Integration
    Database Maintenance
    Hybrid App Development
    Mobile Angular UI
    Angular Material
    Ionic Framework
    TypeScript
    SaaS
    Node.js
  • $20 hourly
    • 4.8/5
    • (68 jobs)
    🚀 8+ Years of Experience | Scalable & AI-Integrated Mobile Apps Hi! I'm Brijesh — a seasoned iOS Engineer and Full-Stack Mobile App Developer with 14+ years of experience building high-performance mobile apps that users love. I specialise in creating secure, scalable, and beautifully designed apps using cutting-edge technologies like SwiftUI, React Native, and OpenAI. 📱 Mobile App Expertise 🧠 SwiftUI, Swift (1.2 – 5.x), Objective-C 📱 React Native, Android (Java/Kotlin) ⌚ Apple WatchKit, Push Notifications 🎥 Live Streaming, Custom Camera, Audio/Video Processing 🗂 CoreData, SQLite, AVFoundation, Calendar, QR/Barcode Scanning 💬 XMPP Chat, Firebase Chat, Local & Push Notifications 🤖 AI & Backend Integration 🧠 OpenAI API Integration (Chat, GenAI, AI-Powered Features) ☁️ Firebase (Auth, Firestore, Realtime DB, ML Kit), Supabase 🧑‍💻 Node.js, PHP, Python (Django), REST/SOAP APIs 🔁 Fastlane, GitHub Actions (CI/CD), AWS, Google Cloud 💳 Third-Party APIs & Payment Systems 💰 Stripe, PayPal, Razorpay 🌍 Google APIs: Maps, Calendar, Drive, OAuth 📤 Mailgun, Mandrill, Parse Server 🔥 Why Clients Choose Me ✅ 8+ years of hands-on mobile dev experience 💬 Clear, fast communication & regular updates 🔧 Clean code, full QA support & scalable architecture 🏆 Delivered 100+ apps — from MVPs to enterprise-grade platforms
    Featured Skill Bluetooth
    Swift
    iPhone & iPad Apps
    iPhone UI Design
    Next.js
    Shopify
    Advanced Analytics
    React Native
    Native App Development
    Android
    Mobile App Development
    Bug Fix
    iOS Development
    Android App Development
    XMPP
    Mobile App
  • $49 hourly
    • 4.6/5
    • (141 jobs)
    Hi everyone, I'm Ivan – your go-to Senior Mobile App Developer! With a Master's Degree in Computer Science, I'm here to supercharge your app ideas! 🚀 Why Choose Me? ► 10+ years of Android development experience. ► 8+ years crafting iOS masterpieces. ► 4+ years of hybrid app wizardry. ► Proficient in Flutter, Kotlin, Xcode, Swift/SwiftUI, Android SDK, and more! To date, I've successfully created and launched over 100 applications, all earning excellent ratings and delighting users. I've worked across various sectors, including: 💰 Financial Services 🏥 Healthcare / MedTech 📊 SaaS 📚 Education 🌐 Internet of Things 🚚 Logistics and Transportation ❤️ Social and Dating Apps …and the list goes on! 🚀 I've collaborated with international giants like Sony Mobile Communication, Y Combinator startups, and visionary Kickstarter entrepreneurs. This journey has equipped me with invaluable insights into market trends, startup concepts, and thriving in highly competitive environments. Why Clients Choose Me as Their 5-Star 🌟 Developer: ▪️ Crafting clean, polished, and well-documented code. ▪️ Relentlessly chasing away bugs for smooth app performance. ▪️ Delivering projects on time and within budget. ▪️ Excelling in clear and effective communication. ▪️ Prioritizing client satisfaction in every project. ▪️ Upholding honesty and transparency as core values. 🛠️ My applications come packed with impressive features: ▪️ Instant Messaging (IM) ▪️ Social Login ▪️ QR Code and Barcode Scanning ▪️ Signature Recording ▪️ GPS Positioning and Mapping ▪️ Integration with Web Services (REST, POST, SOAP) ▪️ Seamless Mobile Ads Integration ▪️ Video and Audio Recording ▪️ Photo Capture ▪️ Social Media Sharing Integration ▪️ Local Database Management ▪️ Cloud Integration ▪️ Bluetooth (BLE) Functionality ...and much more! 🚀 Ready to turn your app idea into reality? Let's chat! 🤝 ___________________________________________________ Related keywords: Android developer, iOS developer, Web developer, Mobile developer, Kotlin, Xcode, Swift, Android SDK, Android Studio, Java, Git, SVN +, Flutter, Flutter Developer, GPS, Bluetooth, Native, Hybrid, Hybrid Mobile Development, JavaScript, React, Next.js, TypeScript, WordPress, React Native, Node.js, Angular, Front end development, HTML/CSS/JS, Back end development, Node.js, AWS, Firebase, Full-stack development, Smart TV app development, Android TV app development, Apple TV app development, SaaS expert, IoT, B2B, B2C, Full-cycle product development
    Featured Skill Bluetooth
    Mobile App Design
    WordPress
    Web Design
    UX & UI
    Android SDK
    Apple Xcode
    iOS Development
    Mobile App Development
    Swift
    Node.js
    React Native
    Kotlin
    Firebase
    JavaScript
    Flutter
    Android App Development
  • $40 hourly
    • 5.0/5
    • (48 jobs)
    💻 My greatest strengths are my extensive experience and deep expertise in React development and Project Management. I’ve successfully completed numerous projects using React for both web and mobile applications and am committed to continuously enhancing my skills. Here are some key metrics showcasing my professionalism: ⭐ 11,000+ hours worked on Upwork ✅ 70+ successfully executed projects 🔧 Excellent troubleshooting skills 🏆 Exceptional Top Rated Plus engineer 👍 70+ satisfied customers Focusing on React, I deliver high-performance front-end applications and full-stack solutions, leveraging my skills in API integration, automation, and mobile development. Whether creating dynamic web applications or building mobile apps, I provide efficient and scalable solutions. I am proficient in a wide array of technologies, including: 🚀 Key Skills: ⚛️ React, React Native, Redux, JavaScript, Node.js, API Integration 🌐 Full-Stack Development, Web Development, API Integration 🛠️ MongoDB, Express.js, AngularJS, Web3.js, PHP, WordPress 📱 Mobile Development (iOS, Android, Flutter), Firebase, Automation 💻 TypeScript, CSS, HTML, PHP, AI App Development 🤖 Google Chrome Extensions, Hybrid App Development ☁️ Microsoft SQL Server, Microsoft Graph API, Python 📈 SEO, GitHub, ChatGPT API Integration Keywords: Mobile App Development, Android, Android App Development, Dart, Expo.io, Firebase, Firetime Realtime Database, Flutter, FlutterFlow, Hybrid App Development, In-app Purchases, iOS, iOS Development, Java, Kotlin, Native App Development, Push Notifications, React Native, Swift, User Authentication, UX Design. Web Development: React, React.js, Redux, TypeScript, UI/UX Design, AngularJS, API, CSS, Debugging, Express.js, Firebase, GitHub, Google Cloud Platforms, HTML, JavaScript, PHP, PostgreSQL, Web Development, WordPress. Full-Stack Development: API Development, Backend, CSS, Dart, Express.js, Full-stack Development, MongoDB, Node.js, PHP, Push Notifications, Redux, Vuex. AI Development: AI App Development, AI Model Integration, AI Text-to-Speech, ChatGPT API Integration, Machine Learning. I thrive in agile environments, delivering high-quality results and collaborating effectively with cross-functional teams. My deep knowledge of React and full-stack technologies allows me to create solutions tailored to your business needs. If you're looking for a reliable, detail-oriented developer, I'm your go-to expert. 🌟 Check out my portfolio, work history, and client reviews to see my reliability! When you're ready, just send me an invite, and I’ll be happy to help you bring your dream app to life—one that not only generates revenue but is also something you’ll be proud of! 🚀💼
    Featured Skill Bluetooth
    Java
    Flutter
    API
    Front-End Development
    Back-End Development
    Mobile App Development
    React Native
    Artificial Intelligence
    API Integration
    JavaScript
    React
    MongoDB
    Web Development
    Full-Stack Development
    Node.js
  • $60 hourly
    • 4.8/5
    • (24 jobs)
    I am highly skilled and awarded App developer having worked for companies like Nike , cipla , Reliance and Amway etc . I have developed over 200 Apps which have raised millions of dollars in fundings and have been in the app stores Best 10 apps often . My strengths are time optimisation and skilful implementation of the solutions in a way that it requires very less testing and maintenance later on and i have been highly recommend for my coding standards . Expert in: 1. Iphone Apps, Ipad apps, Apple watch, Apple TV apps – Obj C , Swift(Latest). 2. Android Apps, Android Gear, Smart Tv , VR ,AR. 3. Hybrid games and apps - PhoneGap, Xamarin, Ionic , Unity3d , Unreal engine.
 4. Website and applications – Php, Java, Ruby on rails, Python, .net .
 5. Enterprise level business applications (ERP, CRM, SAAS ,financial applications, document management system)
 6. Cloud – Amazon web services , Box , Sales force, SAP .
 7. UX , UI and mockup designs
 8. Maintenance of existing information system infrastructure
 9. Re-engineering Solution to redesign existing Infrastructure
 10. System Integration
 Moreover, i know total of 15 Programming languages including Python , Node JS , Dart , Swift , Java , Angular , Kotlin and scala etc
    Featured Skill Bluetooth
    Electron
    MEAN Stack
    iOS Development
    Mobile App Development
    In-App Purchases
    Smartwatch
    Payment Functionality
    Core Bluetooth
    Android
    iOS
    Kotlin
    React Native
    Flutter
    Swift
  • $30 hourly
    • 4.1/5
    • (76 jobs)
    Hello! My name is AN, professional hardware. My job is design hardware circuit, test circuit, program for electronic product and program software on PC to manage/communicate with circuit boards. Just give me your requirements/product specification. Then we can discuss about the deadline, price and other features. I have more than 10 years experience in design hardware for IoT Products, Consumer Products and Telecom Products. So I think i can try my best to complete your project with best result Below is my work flow in hardware design: - Receive your requirements, discuss to have final product/circuit specs - Design block diagram for circuit: need to very detail, it will decide what part will be used in project - Design schematics: follow block diagram to design schematic for product - Design PCB Layout: with requirement about Mechanical Design and Industrial Design, i will do the PCB Layout the fit with your MD that archive best performance - Extract production data: BOM, CAD, GERBER, DESIGN, ASSEMBLY GUIDELINE, IMPEDANCE CONTROL REQUIREMENTS, ... Something about my experience: - About microcontroller: STM32F0/F1/F2/F4/F7, MSP430, MSP432, ATMEGA, ATSAM, PIC, ... - About SoC and MPU: NXP B4860, FBGA J-link, Amlogic T962X,iMX6, mini –iMX8… - About dev board: NXP, Arduino, ADI and TI tranceiver board for 4G, Avago, NXP Amplifier, Amplenol Amplifier, Boardcom 4G board, renesas control BLDC motor... - About Wireless MCU: ESP8266, ESP32, CC2530, CC2538, DA14580/14583, CC2540/41, nRF51822/nRF52840, CC1310, ... - About Sensor: CMOS Image Sensor, light sensor, CO, Smoke Sensor, Dust Sensor, Air Sensor, pH sensor, .... - About wireless communication: WiFi, BLE4.0/4.1/4.0, Zigbee, Sub1GHz, ... - About GPRS/3G/LTE Module: SIM800C/H, SIM900A, SIM908, SIM5320, SIM5360, Quectel MC60/M95/UC15/UC20/EC20, Sierra HL8548, SIM7600E. - About highspeed PCB Design: DDR3/DDR4, CPRI 9.8Gpbs,SMGII, HDMI, USB2.0/3.0/TypeC, eMMC, ... - About Power supply : AC-DC powersupply use topology fly-back, buck ( TI: TNY280/290, STM VIPer06XS…) - About simulation: Power supply simulation( ripple, loss, current…), Highspeed simualtion, Antenna PCB simualation… - About Mass Production: I can help you prepare production data that help you do the mass production. I also have experience in mass production process for 4G Basestation Marco, smallcell and Home Gateway with very big quantity, so i will know how to design for manufacturing with your product, design mass production process, etc Some of my product that I have designed and released to the market: - 4G base station: using SoC with 8 DDR3-RAM 2166 Gbps, eMMC 16GB, TRX tranceiver with 1.8Ghz, CPRI 9.8Gpbs interface, Amplifier 4 port power up to 60 W, Power supply with requiment lighting protect, EMI&EMC… -Home application: Design Air- conditinal use toshiba IC, control motor BLDC, have FPC to 7 A -380 V, power supply 1000 W. temperature resistor sensor, Wifi and IR comucation, control AC Fan by Triac… - Smart Home Product: Design Home Gateway with Ethernet, WiFi, Zigbee and TFT LCD, ... Design Smart Switch with capacitive touch, Zigbee communication, Single Phase Power Meter, 220VAC/110VAC load control, ... ... and a lot of other products . I hope to work with you, to help you complete your project and release your product to the market
    Featured Skill Bluetooth
    Microcontroller Design
    Electronic Circuit Design
    Simulation Game
    Test Case Design
    Amplifiers & Filters
    Schematic
    PCB Design
    Internet of Things Solutions Design
    Hardware Design
    Altium Designer
    Antenna Design
    WiFi
    RF Design
  • $18 hourly
    • 4.8/5
    • (30 jobs)
    ✦✦ Upwork Top Rated Mobile App Developer ✦✦ BLE & IoT Specialist | 12+ Years’ Experience | 40+ 5⭐ Projects 👋 Hi, I’m Bhavik — your partner for Bluetooth, IoT, Beacon, NFC & Smart Device innovation. At the forefront of Bluetooth and IoT innovation, I have a proven track record of transforming complex ideas into cutting-edge mobile and embedded solutions. With over 12+ years in mobile app development and 10+ years specializing in Bluetooth, BLE, NFC, iBeacon, and AIoT technologies, I help businesses build reliable, future-ready applications. My portfolio reflects a relentless pursuit of quality, innovation, and measurable results, and I am recognized among the top Bluetooth developers on Upwork. 🔗 What I Do Best:- ✦ Architect & develop BLE / NFC-powered apps ✦ Build wearable & smartwatch apps (Apple Watch, Wear OS) ✦ Connect IoT devices seamlessly to iOS & Android ✦ Craft cross-platform apps (Flutter, React Native) & native apps (Swift, Kotlin, Objective-C, Java, SwiftUI) ✦ Backend/API with Node.js, React.js for complete product ecosystems ✦ Design & develop modern web applications (React.js, Node.js) 🚀 Industries I Transform:- ✦ Wearables & smart devices ✦ Home automation & connected living ✦ Sports & fitness tech ✦ Health & wellness platforms ✦ Automotive infotainment & in-car apps ✦ Retail, proximity services & marketing tech ✦ OTT & Media Streaming ✦ Custom SDK & API Development 🌟 My Commitment:- Your project deserves more than code — it deserves a partner who understands business impact, user experience, and the technical nuances of Bluetooth and IoT. Whether you’re launching the next-gen wearable, pioneering smart home tech, or creating new ways to connect users, I’m here to bring your vision to life. Let’s connect, innovate, and take your project from concept to success — together.
    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
  • $50 hourly
    • 4.0/5
    • (13 jobs)
    I am a highly skilled and experienced mobile app developer with a proven track record of success in developing high-quality, user-friendly apps for iOS, Android, Xamarin, Flutter and React Native. I am proficient in all of the latest technologies and frameworks, and I have a deep understanding of mobile app development best practices. I am also a great communicator and team player, and I am confident that I can be a valuable asset to your team. I am passionate about helping startups succeed, and I am confident that I can help you develop the next great mobile app.
    Featured Skill Bluetooth
    Apple Watch Application
    Apple Xcode
    iOS SDK
    Swift
    Xamarin
    React Native
    Objective-C
    iOS Development
    iOS
    MongoDB
    Hybrid App Development
  • $108 hourly
    • 4.5/5
    • (157 jobs)
    Thank you for taking the time to view my profile. I am an electrical engineer with a background in hardware design and software development. I specialize in circuit design, PCB fabrication, and embedded systems programming. I also provide enterprise software engineering and web development services with a focus on control systems engineering. I also specialize in digital signal processing and machine learning for data, image, and audio processing. I'm happy to help you take your idea to the next level and beyond! I consider myself an engineer, inventor, designer, and artist. I love to find solutions to complex problems, invent new things, and test what is possible! Services: -Application development -Circuit design and PCB layout -Embedded systems programming -Unity Development -Web development -Database engineering -Project management -Technical writing -Master builder :)
    Featured Skill Bluetooth
    Unity
    Electronic Design
    Article Writing
    OpenCV
    C#
    Power Electronics
    SQL
    Machine Learning
    Technical Writing
    PCB Design
    RF Design
    Python
    C++
    nRF52
  • $80 hourly
    • 5.0/5
    • (81 jobs)
    "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
  • $15 hourly
    • 5.0/5
    • (5 jobs)
    I build MVPs faster than you planned 🚀 My secret? Being an early adopter of Flutter(0.7 beta release) I've developed a suite of customizable Flutter modules over the years, covering everything from user registration to notifications. These ready-to-use components significantly speed up development without sacrificing the quality or functionality of your app. Hi, I'm Disha, your go-to expert in Flutter and FlutterFlow. But wait, there's more—dive in to discover! My skills include: ✅ Flutter: Flutterflow, Flutter stack, Dart, Flutter SDK, Material Design, Firebase, Flutter DevTools, Provider, Dio, BLOC pattern, GraphQL, Face, Firebase ML kit, OCR Text scanner, WebRTC, Google Map, Mapbox, IoT based solution ✅ Databases: MySQL, SQLite, MongoDB, Firebase Firestore, SQLite. ✅ Features, Functionalities: Responsive Design, In-App Purchases, User Authentication, In-App Advertising, Map Integration, In-App Search, Mobile UI Design, Payment gateway. ✅ APIs: RESTful, GraphQL, OAuth, JWT, Postman, Swagger. ✅ iBeacon: Apple's Core Location (iOS), Android Beacon Library. ✅ RFID: NFC tools, RFID-RC522 (for Arduino/Raspberry Pi), NXP RFID. ✅ Tools: GitHub, ZenHub, Trello, Apple Xcode, Jenkins, Fastlane, Jira, Trello, Slack, Zoom, Auto Layout, Subversion. Why choose me? A Blend of Expertise and Passion: - Early bird in Flutter (2018) 🐦, I've been an early adopter and advocate for its potential. - Stellar Track Record 🌟. (I've earned exclusively 5-star feedback from all my clients) - I am passionate about coffee ☕ (7 cups minimum a day:) - I'm always on the pulse of the latest tech trends and advancements, ensuring your projects benefit from the most efficient and innovative solutions. My proficiency in FlutterFlow means I deliver swiftly without ever compromising quality. - My involvement doesn't end at coding. I'm invested in the entire product lifecycle, offering insights and leveraging analytics tools like Firebase and Mixpanel to enhance app performance and user experience. Beyond development, I see myself as a collaborator invested in the success of your product, committed to delivering excellence that elevates your project. Excited to transform your vision into an engaging digital experience? I'd love to connect and dive deeper into your project over a 15-minute call. Together, we can make something truly memorable, powered by innovation and, naturally, a good cup of coffee.
    Featured Skill Bluetooth
    Mobile App Design
    AI Mobile App Development
    Mobile App Development
    Apple Xcode
    Android Studio
    OpenAI API
    API Integration
    Socket.io
    App Store
    Firebase
    Dart
    FlutterFlow
    Flutter
    iOS
    Android
  • $44 hourly
    • 4.8/5
    • (104 jobs)
    I am a professional Electronics Engineer with 9 years of experience in the Embedded System Software and Hardware R&D industry. My expertise range from hardware design with firmware development to the integration of hardware with software(Web. IOS, Android). I strive to provide low-cost embedded solutions. My knowledge of engineering specifications that rule each production stage is well defined, and I take pride in my ability to work in sync with resources and people ⚡Expertise in Hardware Design & PCB Design⚡ ✅Schematic Capture and PCB Design by using the Altium Designer, Eagle, Ki-cad. ✅High-speed complex PCBs. ✅PCBs with FPGAs, Processors, DDR2, DDR3, PCIe, HDMI, Ethernet, USB 3.0. ✅PCBs with SPI, I2C, RS232, RS485, RS422, CAN, USB, UART Protocol circuits. ✅Design Layout for 4G/LTE, Wi-Fi Module, Bluetooth, GSM/GPS, LoRa, Zigbee. ✅Differential signal and transmission line routing. ✅Impedance calculation & Stack-up Building. ✅Knowledge of EMI/EMC and CE certifications. ✅EMI/EMC Compliant Design ✅RF PCBs with Rogers & FR-4 with complete impedance calculation. ✅Digital & Analog(Mix signal PCBs). ✅Power Electronics circuit design. ✅Multi Stack boards enclosed in casings. ✅Shields of all Arduino boards and Raspberry Pi boards. ✅IoT PCBs with NB-IoT Processor chip i.e. NRF9160. ✅Biomedical-related sensors circuit board design. ✅MEMS / IMU Sensors circuit board design. ✅Motor Control circuit boards design. ✅NFC, RFID, and biometric circuit boards design. ✅Enclosure, 3D modeling, Rendering in Solid works. ✅Product Prototyping as well as preparing for manufacturing ✅Reverse Engineering of PCBs. ✅Consultancy and technical support of PCB fabrication and assembly. ⚡Expertise in Embedded Firmware Development⚡ ✅Exceptional C++/C /C# and Python programming skills. ✅FPGA design using Verilog/VHDL (Xilinx ISE). ✅Boards (ARM, TI, ST, Microchip, Atmel, DSP, Arduino, etc.) ✅Embedded software: Keil, Eclipse, Segger, Zyhper, Atmel Studio, Arduino, Node-Red. ✅Single board computer: Raspberry Pi, Beaglebone, NanoPi. ✅Strong with UART, I2C, SPI, BLE, BT, GSM/4G/LTE/GPRS/GPS, ZigBee, LORAWAN. ✅Strong with BLE HM10, HC05,ESP8266, ESP32, DA14580, nRF52,nRF9160. ✅Strong with RS232, RS485, RS422, CAN, USB2.0, USB3.0. ✅OBD Protocols SAEJ1850PWM, SAEJ1850VPW, ISO14230-4 (KWP2000),ISO15765-4. ✅IoT development using MQTT. ✅Expert in AWS IoT Core and Azure IoT Core ✅IoT Development in NODE RED Environment on Raspberry Pi(Raspbian). ✅Experience in NRF connect. I am hoping to be hired by you to bring your project to completion in the least time with a nominal price by using My skills and experience. If given a chance to do this task, I will work best and bring in the required output.
    Featured Skill Bluetooth
    Hardware Design
    STM32F4
    Altium Designer
    Internet of Things Solutions Design
    Microchip
    Circuit Design
    PCB Design
    ESP32
    Embedded System
    Android App Development
    Multilayer PCB
    Product Development
  • $70 hourly
    • 5.0/5
    • (13 jobs)
    Electronic engineer experienced in the design of electronic circuits, Internet of Things systems and software. I am also an MsC candidate and perform as an assistant professor at the Engineering School of Universidad de la República (Uruguay), what enables me to have a deep knowledge of the state-of-the-art technologies. My experience in over 40 projects for clients located in South America and the U.S., the permanent contact with modern technologies and a strong enterprising spirit makes me able to deliver great engineering in record time. Let's get in touch!
    Featured Skill Bluetooth
    Electronic Design
    Firmware Programming
    Electronic Circuit Design
    PCB Design
    Internet of Things
    Digital Electronics
    Core Bluetooth
    Firmware
    nRF52
    Microcontroller Programming
    C
    Embedded Linux
    LoRa
    C++
  • $85 hourly
    • 5.0/5
    • (16 jobs)
    🙋 𝗡𝗲𝗲𝗱 𝗮𝗻 𝗮𝗽𝗽 𝗳𝗼𝗿 𝘆𝗼𝘂𝗿 𝗕𝗟𝗘 𝗼𝗿 𝗜𝗼𝗧 𝗱𝗲𝘃𝗶𝗰𝗲? 𝗧𝗵𝗲𝗻 𝗜 𝗮𝗺 𝗿𝗲𝗮𝗱𝘆 𝘁𝗼 𝗯𝘂𝗶𝗹𝗱 𝗶𝘁 𝗳𝗼𝗿 𝘆𝗼𝘂. I'm Daniel Reiling - a Senior Mobile App Developer based in Dallas Texas (🤠 🇺🇸) and for the past 10 years I have created more than 25 𝙥𝙪𝙗𝙡𝙞𝙨𝙝𝙚𝙙 𝙖𝙥𝙥𝙨 used by 𝙢𝙤𝙧𝙚 𝙩𝙝𝙖𝙣 1 𝙢𝙞𝙡𝙡𝙞𝙤𝙣 𝙪𝙨𝙚𝙧𝙨! I've helped business owners & entrepreneurs successfully launch their BLE/ IoT mobile apps for ideas ranging from 𝙩𝙚𝙡𝙚𝙝𝙚𝙖𝙡𝙩𝙝 & 𝙝𝙚𝙖𝙡𝙩𝙝𝙘𝙖𝙧𝙚, 𝙫𝙚𝙝𝙞𝙘𝙡𝙚 𝙨𝙮𝙨𝙩𝙚𝙢𝙨, 𝙖𝙞𝙧-𝙦𝙪𝙖𝙡𝙞𝙩𝙮 𝙘𝙤𝙣𝙩𝙧𝙤𝙡, 𝙛𝙞𝙩𝙣𝙚𝙨𝙨 apps, and more! Finding the right developer on Upwork can be overwhelming. That's why I am always available for 𝗮 𝗳𝗿𝗲𝗲 𝗰𝗼𝗻𝘀𝘂𝗹𝘁𝗮𝘁𝗶𝘃𝗲 𝗰𝗮𝗹𝗹 so we can discuss your mobile app project in detail. I only take on projects where I know I can provide value. So you can depend on me being straight-forward with you, and when I don’t think we are a good fit I will point you in the right direction. And if we do work together, I promise to give you the 𝙨𝙚𝙧𝙫𝙞𝙘𝙚 𝙮𝙤𝙪 𝙙𝙚𝙨𝙚𝙧𝙫𝙚 when developing your mobile app: 🔁 Flexible pricing terms 📅 Weekly updates 🛠️ 100% custom-tailored solutions ⏰ Deadline oriented 📝 IP assignment of the codebase & designs 🛡️ Post-launch bug-free warranty So if you are an entrepreneur who wants to launch an MVP (Minimum Viable Product) for your IoT/BLE device or a business owner needing to launch a mobile app for your equipment, I would appreciate the opportunity to speak with you. ======================================== 👉 𝐋𝐄𝐓'𝐒 𝐓𝐀𝐋𝐊 𝐀𝐁𝐎𝐔𝐓 𝐘𝐎𝐔𝐑 𝐏𝐑𝐎𝐉𝐄𝐂𝐓 👈 Are you ready to get started on your mobile app? Let's connect and craft a plan to make your vision a reality. I'm looking forward to bringing your mobile app to life, one line of code at a time. ======================================== 𝐓𝐄𝐂𝐇𝐍𝐈𝐂𝐀𝐋 𝐒𝐊𝐈𝐋𝐋𝐒 MOBILE APP DEVELOPMENT ✅ React Native ✅ Swift ✅ Kotlin ✅ Yarn ✅ Expo MOBILE APP DESIGN ✅ Figma DATABASE EXPERTISE ✅ Firestore ✅ Supabase ✅ PostgreSQL/Postgres ✅ Dynamo ✅ MySQL BLE/IoT EXPERIENCE ✅ NFC ✅ BLE ✅ WatchOS 𝐒𝐓𝐑𝐎𝐍𝐆 𝐂𝐎𝐌𝐌𝐔𝐍𝐈𝐂𝐀𝐓𝐈𝐎𝐍 𝐒𝐊𝐈𝐋𝐋𝐒 Along with my advanced technical skills, communication is one of my biggest strengths as an engineer. I take an honest approach to discussing the feasibility and limitations of a project and can communicate high-level solutions to clients of any technical ability. 𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀: iOS Development, Android App Development, React Native, Swift, Native App Development, In-App Subscription, Google Maps API, Firebase, Bluetooth, Fitness Tracker, Mobile App Development, Health & Wellness, HIPAA, Mobile Device, iOS SDK, IoT, BLE
    Featured Skill Bluetooth
    Internet of Things Solutions Design
    AI App Development
    AI Implementation
    HIPAA
    Health & Wellness
    Mobile App Development
    Fitness Tracker
    Google Maps API
    In-App Subscription
    Android App Development
    iOS Development
    Bluetooth LE
    Internet of Things
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