Upwork home
Sign up
Secondary

Hire the best Watch professionals

Check out Watch professionals with the skills you need for your next job.
Hire freelancers
Clients rate Watch professionals
Rating is 4.8 out of 5.
4.8/5
based on 974 client reviews
  • $35 hourly
    • 5.0/5
    • (56 jobs)
    ✅ 13 Years Professional Experience ✅ 40+ Mobile Apps ✅ Top Rated Plus Developer Hey there! 👋 I'm Sherwin, an expert Engineer with 13+ years of experience at big tech companies. I'm experienced leading, designing and implementing core mobile features in fast-paced, technology-driven environments with worldwide impact and multiple stakeholders. I am fluent in English and have experience working with scalable and testable code, REST APIs, multiple design patterns, CI/CD pipelines and version control. 🏆 Worked in the multinational company MicroStrategy, Developed apps with over 100 million daily users such as DiDi and Kuaishou. 🚀 Expertise in Technologies: o Native Development: Swift, SwiftUI, Objective-C, Kotlin, Java, Jetpack Compose, HarmonyOS o Cross-Platform Frameworks: React Native , Flutter o DataBase: Realm, CoreData, Firebase FireStore, Firebase Realtime Database, Supabase, RoomDatabase o Web: Flutter Web o Deploy: AWS S3, Lamda, CloudFront, EC2, OpenShot o Server Development: Python ✅ My experience domains: o Bluetooth / Smart Watch / Camera Domain o Fitness / Health Domain o OpenAI / Assistance / Whisper o Location Tracking / Travel o Social Media/Dating Domain/Video/Audio chats o Video/Audio player processing application o Financial / Shopping Domain o Payment / In App Purchase / Apple Pay / Stripe o Connection between clients and hardware suppliers in China I'm excited to bring my experience and skills to new projects and deliver high-quality work on time and within budget. Let's make great apps together! Regards, Shaolin
    Featured Skill Watch
    AI App Development
    Supabase
    Firebase
    Native App Development
    Smartwatch
    Flutter
    Bluetooth
    Java
    iOS
    Android
    React Native
    Objective-C
    Swift
    Kotlin
    Mobile App Development
  • $22 hourly
    • 5.0/5
    • (38 jobs)
    𝗘𝘅𝗽𝗲𝗿𝘁 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 || AI Application Developer | AI & LLM Expert || (𝟭𝟬+ 𝘆𝗲𝗮𝗿𝘀 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲) - 𝗶𝗢𝗦 (𝗦𝘄𝗶𝗳𝘁, 𝗦𝘄𝗶𝗳𝘁𝗨𝗜), 𝗔𝗻𝗱𝗿𝗼𝗶𝗱 (𝗞𝗼𝘁𝗹𝗶𝗻, 𝗝𝗮𝘃𝗮), 𝗙𝗹𝘂𝘁𝘁𝗲𝗿-𝗗𝗮𝗿𝘁 𝙁𝙡𝙪𝙩𝙩𝙚𝙧 || 𝙞𝙊𝙎 & 𝘼𝙣𝙙𝙧𝙤𝙞𝙙 𝘼𝙥𝙥 𝘿𝙚𝙫𝙚𝙡𝙤𝙥𝙢𝙚𝙣𝙩 || 𝘾𝙝𝙖𝙩𝙂𝙋𝙏 𝙞𝙣𝙩𝙚𝙜𝙧𝙖𝙩𝙞𝙤𝙣 || 𝘼𝙪𝙜𝙢𝙚𝙣𝙩𝙚𝙙 𝙍𝙚𝙖𝙡𝙞𝙩𝙮 || 𝘼𝙧𝙩𝙞𝙛𝙞𝙘𝙞𝙖𝙡 𝙄𝙣𝙩𝙚𝙡𝙡𝙞𝙜𝙚𝙣𝙘𝙚 || 𝙈𝙖𝙘𝙝𝙞𝙣𝙚 𝙇𝙚𝙖𝙧𝙣𝙞𝙣𝙜 ✴️ EXPERT-VETTED Top 1% iOS & Android App Developer on Upwork 🏆 UPWORK TOP 1% - EXPERT-VETTED Mobile App Developer 🚀 UPWORK TOP RATED PLUS Mobile App Developer ✅ 30+ SUCCESSFUL PROJECTS in iOS & Android Mobile App Development 🔥 8000+ UPWORK HOURS ⭐ 100% JOB SUCCESS SCORE I am Full-time Independent Mobile App Developer (Want to create an app?), I am a highly skilled software engineer with about 10+ years in mobile app development. I have developed and published 50+ iOS & Android apps. Here are some of my technical skills: Languages: Apple App Developer, Swift, Combine, SwiftUI, Objective-c, Android Developer JAVA, Kotlin, & Node.js, ChatGPT4 API, Cross platform / Hybrid App Development Flutter. Tools: Xcode-11, Android Studio, JDK, IDE, VS Code. My experience (Mobile App Developer Social, Dating, OnDemand, eCommerce, Grocery,Fitness App Development.) in programming includes but not limited to the following area of expertise: - In Design using Autolayout, Constraint - CoreData, Core location, SQLite - Geolocation and Geofencing. - AFNetworking, Alamofire - AVFoundation Framework for Audio, Photo, Video Manipulation - In-App Purchase / Push Notifications - Certificate Generation / Provisioning / Code Signing / App deployment to store - Chat Applications Development - Firebase Integration, AWS - Google, Facebook, Twitter API Integration - Social media integration like Google, Facebook, Twitter, Instagram, etc. - AI, ChatGPT, ARKit, iBeacon, BLE, IoT, Wrist Band, Machine Learning, ChatGPT4 API, etc. -And more I possess an in-depth understanding of the entire app development process and can provide solutions to various technical issues. I prioritise designing and developing apps with easy-to-use, eye-catching designs that provide helpful functions for users. I recently completed 4 SwiftUI, ARKit, Machine Learning, ChatGPT (OPenAI) Artificial Intelligence, Object recognition based iOS Applications & implemented Machine Learning, Artificial Intelligence & IBM Watson; Please let me know if you need Any help in an iOS and Android Mobile App Development. I believe customer satisfaction is key to success and thrive on delivering with 100% satisfaction. Thanks & Regards, Jaydeep
    Featured Skill Watch
    Artificial Intelligence
    Social Networking Development
    Business Process Management
    Mobile App
    App Development
    Apple Xcode
    UIKit
    iOS Development
    API Integration
    Android
    Kotlin
    PHP
    Swift
    Objective-C
    Mobile App Development
  • $90 hourly
    • 5.0/5
    • (8 jobs)
    [Note: We (Agency)do not entertain Outside UpWork Communication] We are occupied with our current projects. Individual developer support is not available at this time. Please, Serious Clients, apply through my Agency. 15+ years of experience. Degree - Bachelor Of Engineering, Industrial experience 15+. I am an expert in creating Full Stack Development. Additionally, I have submitted many apps to the App Store, with complex interfaces, extensive web service communication, and multimedia content. I have a strong knowledge of basics, such as common design patterns(MVC), programming languages( Java, TypeScript), and Standard). Also have great experience in a various number of third-party SDKs, Google Firebase, Facebook, PayPal, Stripe, Google Maps, ad networks, etc. Skills & Experiences: ✅ Languages: Java, Kotlin ✅ Tools: Git, Bitbucket, Jira, Confluence Trello, Git Branching & Merging, PR generation & PR Review ✅ Agile methodology - Scrum, Sprint Board, Sprint Planning & Sprint Review ✅ RESTful Applications ✅ Maps & Locations ✅ Push Notification ✅ iTunes connect - TestFlight release and App store submission. ✅ Payment integrations like Stripe etc ✅ Facebook, Twitter, and Google Integration ✅ Codebase: MVC, MVVM ✅ Knowledge of JavaScript, HTML, and CSS, React Native & NodeJS. Expertise in following technologies: ✅ Android (Kotlin) ✅ Java ✅ Node ✅Angular I will provide you with good quality and satisfactory work with your approval. At last, my client's satisfaction is most important to me. Our Agency successfully delivered 50+ IOS projects live and we are offering them a maintenance support. Agency/Team expertise - Additional team skills- IOS (swift/c++), flutter, react native, Game Development [3D] Thanks for visiting my profile. [No Outside UpWork Communication] Hourly Rates are different for Game Development [3D]
    Featured Skill Watch
    AWS Lambda
    SaaS
    iPhone
    Bluetooth
    Dart
    Android App Development
    React Native
    Kotlin
    Xamarin
    PHP
    Mobile App Development
    Flutter
    Java
    C#
    Swift
  • $20 hourly
    • 5.0/5
    • (16 jobs)
    I help businesses bring their mobile app ideas to life with Flutter, delivering smooth and fast Android/iOS experiences that users love . And Successfully developed 32+ apps over 8 years of experience . 👨‍💻 All of my projects are available at othman.elmajid.com Specializing in Flutter App Developement / creating cross-platform iOS/Android apps. with 5 years of experience , i also have a great experience in wide number of third-party SDKs: Google Firebase, Facebook, PayPal, Google Maps, ad networks, Parse Server etc. what i offer : Supporting various device sizes Security Performance Improvement Firebase Support Website to App Conversion Custom Application Development API Integration In-App Purchases app Fitness App E commerce app Calling Apps Firebase Integration Quiz App Barcode Scanner App Delivery app Travel Agency app Cylinder delivery app Food delivery app Expense tracker app Google Map integrations Payment gateway integration Food App Grocery, Mart and store app otmane el majid morocco
    Featured Skill Watch
    Flutter Stack
    Camera
    In-App Search
    Flutter
    Firebase Cloud Firestore
    Firebase
    Dart
    In-App Advertising
    MongoDB
    User Profile Creation
    Mobile App Design
  • $75 hourly
    • 4.8/5
    • (4 jobs)
    o 15+ years of experience building iOS apps – one of the original App Store developers (July 2008) o 20+ years successfully working with dozens of clients from my REMOTE office, as a telecommuter o 30+ Apps published in the Apple App Store and Enterprise o 25+ years of professional software development experience o 20+ years of experience with networking protocols & methodologies: REST, JSON, HTTP, TCP, UDP o 20+ years of experience with source control systems: Git, SVN, CVS, RCS, VSS, Perforce o Keen ability to distill complex concepts and systems into easily understandable terms o Outstanding analytical and problem-solving skills o Ability to work independently and as part of a team o Exceptional attention to detail, remarkably fast learner, excellent communication skills. o Personable, enthusiastic, conscientious. o Languages: Objective-C, C++, Swift, Java, Kotlin, JavaScript, PHP, Python, Perl, C, C#. o Operating Systems: iOS, watchOS, macOS, Windows, Linux, Unix. o IDEs: Xcode, Android Studio, Visual Studio, Eclipse. o Experience with API architecture design. o Strong understanding of multi-threaded and concurrent applications. o Expert understanding of all aspects of the iOS provisioning workflow. o Experience developing in an agile and test-driven environment. o Experience creating dynamic libraries with CocoaPods. o Experience with third-party libraries, APIs, and SDKs. o Hands-on experience with UIKit, CoreData, CoreGraphics, CoreAnimation, Cocoa design patterns. o Experience with a wide variety of analytics platforms, including Firebase (Google), Flurry (Yahoo), AWS, comScore, Nielsen, Adobe, MOAT (Oracle). o Ability to bring designer’s creations to life, with pixel-perfect implementations. o Experience in video and media-based development projects. o Working knowledge of Android development (Android Studio, Java, Kotlin, XML, Gradle, CircleCI).
    Featured Skill Watch
    iPad App Development
    API Development
    JSON
    Apple Watch
    SwiftUI
    Objective-C
    UIKit
    watchOS
    Chat & Messaging Software
    Mobile App Development
    User Authentication
    Location-Based Service
    iOS Development
    Flutter
    Swift
  • $15 hourly
    • 4.6/5
    • (48 jobs)
    🥇 RELIABLE TOP-RATED FLUTTER AND FLUTTERFLOW DEVELOPER WITH A 100% JOB SUCCESS SCORE. 🥇 SUCCESSFULLY COMPLETED 45+ FLUTTER-BASED ANDROID AND IOS APPLICATIONS WITH AVG RATING OF ⭐⭐⭐⭐⭐ 4.7/5. Need any assistance with Flutter, I am here to help you! I have over 6 years of experience in Flutter development and have developed various solutions for a different niche. I am an expert in the below shared technical skills. 🛠 Technical Skills: ‣ Flutter & Dart: Building cross-platform mobile apps with clean code. ‣ Firebase/Firestore: Real-time database, authentication, and cloud functions. ‣ Supabase Authentication and Authorization, Real-time data handling ‣ Android & iOS: Creating high-performance native-like applications. ‣ API Integration: Expertise in RESTful and third-party APIs. ‣ State Management: Provider, Riverpod, Bloc, and GetX. ‣ UI/UX: Crafting responsive and user-friendly interfaces. ‣ Version Control: Skilled with Git, GitHub, and Bitbucket. ‣ Testing: Unit and widget testing for reliable apps. Let's talk about the solutions!
    Featured Skill Watch
    Supabase
    Payment Gateway
    Push Notifications
    In-App Purchases
    NFC
    FinTech
    API Integration
    MySQL
    Firebase
    FlutterFlow
    iOS Development
    Android App Development
    Dart
    Flutter
    Hybrid App Development
  • $75 hourly
    • 4.9/5
    • (58 jobs)
    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 Watch
    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
  • $27 hourly
    • 4.6/5
    • (22 jobs)
    ✅ 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 Watch
    CodeIgniter
    WordPress
    Internet of Things
    Core PHP
    Firmware Programming
    iOS Development
    Android App Development
    Swift
    Flutter
    React Native
    Core Bluetooth
    iOS
    iBeacon
    Bluetooth
  • $85 hourly
    • 5.0/5
    • (7 jobs)
    Full stack dev. Web3 friendly. Front-end - NextJS/Tailwind/GraphQL MERN - Mongo/Express/React/Node Web3 - Solidity/Viem/The Graph/Wagmi
    Featured Skill Watch
    Front-End Development
    GraphQL
    Tailwind CSS
    Next.js
    React
    React Native
    Web Development
    Blockchain
    Web3
    Solidity
    web3.js
    Smart Contract
    Ethereum
    TypeScript
    JavaScript
  • $50 hourly
    • 5.0/5
    • (41 jobs)
    TOP-RATED Senior IOS developer 🎖️ 30+ Apps from scratch 🎖️ 50+ projects completed 🎖️ 100% Job Success 🎖️ 100% Client satisfaction Are you in search of a top-tier iOS developer who not only delivers exceptional quality but also brings a wealth of expertise in UI/UX design, Photoshop, web development, and Android to the table? Look no further! I have a proven track record of successfully completing multiple projects, and my skills extend beyond iOS development. Here's what you can expect when you choose me for your project: Project Expertise: Utilizing APIs for robust backend functionality Implementing push notifications for user engagement Integrating Maps SDK for location-based features Ensuring secure authentication with Firebase Authentication Leveraging CocoaPods for efficient code management Crafting responsive Auto-Layouts for a seamless user experience Completed Projects: Developed a Food Delivery App for users, drivers, and restaurant partners Created a Booking-Ride App with user, driver, and admin interfaces Designed an Online-Shopping App for users, drivers, and merchants Proficient in development for iPad, iPhone, and Watch-OS platforms What I Offer: iOS development expertise in Swift and Objective-C, guaranteeing high-quality work Android development skills using Java to cater to a wider audience Web development proficiency with Ruby on Rails for versatile solutions Why Choose Me? Extensive knowledge of both Android and iPhone architecture and databases Ensuring applications work seamlessly across all devices and platforms Competitive hourly rates that provide excellent value for your investment Commitment to delivering projects on or before deadlines with unwavering passion I am as enthusiastic about your project as you are, driven by a genuine love for creating apps Consistent delivery of high-quality work is my hallmark Stay up-to-date with the latest technologies to offer innovative solutions for your projects When you hire me, you're not just getting an iOS developer; you're gaining a versatile, passionate, and dedicated partner in turning your app ideas into reality. Let's collaborate to create something exceptional!
    Featured Skill Watch
    In-App Search
    GraphQL
    Social Media Account Integration
    iPhone & iPad Apps
    Apollo.io
    Smartwatch
    iOS Development
    AWS AppSync
    iOS
    Apple Xcode
    Firebase
    Swift
  • $15 hourly
    • 4.8/5
    • (28 jobs)
    ✅ 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 Watch
    Kotlin
    iPad App Development
    Bluetooth LE
    Objective-C
    Native App Development
    Android App Development
    HealthKit
    Android
    iOS
    Smartwatch
    Mobile App Development
    Swift
    iBeacon
    Bluetooth
    Internet of Things
  • $28 hourly
    • 4.7/5
    • (50 jobs)
    𝟏𝟖𝐊+ 𝐇𝐨𝐮𝐫𝐬 | $𝟑𝟎𝟎𝐊+ 𝐄𝐚𝐫𝐧𝐞𝐝 | 𝐓𝐨𝐩 𝐑𝐚𝐭𝐞𝐝 𝐏𝐥𝐮𝐬 🔹 Upwork Top Rated Plus – Among the top 3% of freelancers on the platform 🔹 11+ Years of Experience in Web & Mobile App Development 🔹 60+ Projects Successfully Delivered Hi, I'm Mohit Mali, a highly experienced Java and Mobile App Developer with deep expertise in Java, Android, Kotlin, iOS, Spring Boot, and OpenAI integrations. Over the past decade, I’ve designed and developed scalable, high-performance applications with a strong focus on delivering seamless user experiences and robust back-end logic. My development philosophy is centered on writing clean, maintainable code and building solutions that are both technically sound and aesthetically refined. 💼 Services Offered: 📱 Android & iOS Mobile App Development (Java, Kotlin, Swift) 🌐 Web Application Development (Spring Boot, REST APIs) 🧠 AI Integration (OpenAI, ChatGPT APIs) 🔗 API Development & 3rd-Party Integrations 🛒 eCommerce Development 🧰 CRM & Custom Business Software 🎯 Frontend & Backend Architecture 📈 Technical Consulting & Project Analysis 🧪 App Optimization, Testing & Debugging 💡 Why Work With Me? ✔️ 100% Success Rate across all Upwork projects ✔️ 40+ Hours/Week Availability with flexible scheduling ✔️ Rapid Response Time ✔️ Reliable Communication, Transparency & Professional Ethics ✔️ Client-Centric Approach focused on long-term value Whether you're looking to build a high-performance mobile app, integrate AI into your system, or launch your next web platform, I bring the experience, reliability, and innovation to help bring your vision to life. Let’s collaborate and turn your ideas into reality.
    Featured Skill Watch
    Asana
    DevOps
    Azure DevOps
    AI Development
    Jira
    Serverless Stack
    Internet of Things
    AWS Lambda
    Blockchain Development
    Technical Project Management
    Docker
    GitHub
    Mobile App Development
    Android App Development
    Java
  • $30 hourly
    • 5.0/5
    • (24 jobs)
    I'm an expert iOS Swift developer with a passion for UX / UI. I have been creating iOS apps for 4+ years. I have worked with the most complex technologies in iOS such as AVFoundation, HLS Live Streaming, ARKit, Sprite Kit. I am extremely communicative, and I understand what exactly needs the business so I offer the best solutions for it. I am extremely communicative, always available for any type of calls, meetings, so be free to discuss with me your next successful project.
    Featured Skill Watch
    iOS Development
    StoreKit
    Firebase Realtime Database
    Firebase
    Core Data
    UIKit
    WebKit
    iOS
    ARKit
    iPadOS
    Realm Database
    Swift
  • $21 hourly
    • 5.0/5
    • (65 jobs)
    🌟 100% Jon Success Score 🌟 80+ Successful project in “Mobile App Development” and "Web" Technologies 🌟 5 Star Rating 🌟 Long-Term Contracts (Up to 3+ Years) with repeated clients ### Earned "✳TOP RATED PLUS (Top 1% Talent)" badge We specialise in Web and Mobile App, UI - UX design, and development technologies. While developing an web and mobile application, we take special care about User Experience. 🌟 Key Highlights: ✔️ Over 9+ years of experience in iOS and Cross-Platform Development ✔️ Proficient in iOS, Android, and Swift, Python, React, Vue.js ensuring comprehensive solutions across platforms. ✔️ Completed over 10,000+ hours on Upwork with a proven track record of client satisfaction and project success. ✔️ Strong background in UI/UX Design, ensuring seamless user experiences and optimized performance ✔️ Experienced in collaborating with teams to achieve on-time delivery and scalable solutions 🌟 Technology Expertise: ✔️ Mobile Apps Development : Expertise in delivering native apps using Swift & Kotlin, as well as cross-platform apps using Flutter & React Native. ✔️ Front-end Developer : Crafting responsive UI using React, Redux, Next.js, Nuxt.js, Vue.js (VueX), Angular.js (Angular), and modern web technologies like TypeScript, JavaScript, HTML, CSS, Bootstrap, JQuery, and JSON. ✔️ Back-end Developer : Skilled in PHP (Laravel, CodeIgniter), Node.js (Express, Nest). Experienced in building Rest APIs, designing Cloud Infrastructure, and developing CICD Pipelines. ✔️ Databases : Experienced in managing and optimising various databases including MySQL, PostgreSQL, MongoDB, MariaDB, Amazon DynamoDB, and Firebase. ✔️ AI/ML Developer : Specialising in AI/ML technologies such as OpenAI's ChatGPT, Bard, GPT-4, LLMs, STT/TTS, NLP, Langchain, and frameworks like PyTorch and TensorFlow. 🤝 Why Hire Me: ✔️ 𝗤𝘂𝗮𝗹𝗶𝘁𝘆 𝗖𝗼𝗱𝗲 – Unit-tested, scalable, and optimised for performance and future growth ✔️ 𝗦𝗲𝗰𝘂𝗿𝗶𝘁𝘆 𝗮𝗻𝗱 𝗦𝗰𝗮𝗹𝗮𝗯𝗶𝗹𝗶𝘁𝘆 – Focus on secure, reliable, and scalable app solutions for large-scale use ✔️ 𝗨𝘀𝗲𝗿-𝗖𝗲𝗻𝘁𝗿𝗶𝗰 𝗗𝗲𝘀𝗶𝗴𝗻 – Ensuring intuitive UI/UX for maximum user satisfaction ✔️ 𝗟𝗼𝗻𝗴-𝗧𝗲𝗿𝗺 𝗦𝘂𝗽𝗽𝗼𝗿𝘁 – Committed to ongoing maintenance and continuous improvement of your app 💼 𝗖𝗹𝗶𝗲𝗻𝘁 Satisfaction: My commitment to excellence is reflected in consistently high client ratings and feedback. I am dedicated to understanding your unique project requirements and delivering tailored solutions that exceed expectations. 🤝🏻 Let's Connect! 🚀 Send me a message to discuss how we can achieve your project goals together. 🚀
    Featured Skill Watch
    Web Application
    WordPress
    Web Development
    Apple TV Application
    iOS Development
    Node.js
    Mobile App Development
    tvOS
    React Native
    Flutter
    Hybrid App Development
    Native App Development
  • $29 hourly
    • 3.6/5
    • (38 jobs)
    🎁 A 100% refund if I set the wrong expectation and can’t deliver. No questions asked! - TOP 1% Certified Mobile App Developer on Upwork - 90%+ LONG TERM clients on Upwork I've been developing applications for the past 8 years now. Most of the clients you see on my profile lasts for at least a year or more. What is the reason? - I OWN what I am working on. I don't make excuses rather; I take complete ownership of the project. - I care about my clients. I know if they're spending money on something, I'll work my ass off to make that thing pay them back. - I am Transparent. I'll always tell a straightforward story. I excel at developing native mobile apps for Android using Kotlin and Java, and for iOS using Swift and SwiftUI. What you’ll get: – Custom mobile apps that meet your specific business needs, from concept to launch. – Update your existing mobile apps to ensure they remain competitive and secure. – Expert technical guidance on mobile app development projects, ensuring that your project is completed efficiently and effectively. Apart from that, I have an excellent experience with all web stacks - React - Node - Angular - MERN - Ruby on Rails - Python I can work on almost every feature of mobile apps due to a very vast career in app design, development, and testing. Some of the famous and most used things that I've experienced are, - Mobile App Development / iOS Development / Android App Development / Hybrid / Cross Platform - Firebase Services (Authentication, Real-time Database, Firestore, Push Notification, etc.) - Classified Apps - VOIP calling apps - Location (Google Maps Integration) - REST APIS / API Integration - Mobile Payment gateways or In-App Purchases - User Data Management Local and Remote - Chat and Messaging app - Push Notifications - Photo and Video editing - AI chatbot - Maps Whether you seek expertise in a specific technology, tool, framework, or library, or need a dedicated and skilled development partner to bring your project to life, I'm the one for the job. Let's connect to discuss how I can help you achieve your goals!
    Featured Skill Watch
    Smartwatch
    Push Notifications
    Payment Functionality
    Firebase
    Mobile App Development
    Front-End Development
    Android
    React Native
    Software Development
    API Integration
    JSON
    React
    Java
    Kotlin
    JavaScript
  • $20 hourly
    • 5.0/5
    • (143 jobs)
    Hello I'm an experienced Mobile and Web App developer ready to bring your ideas to life. With 100+ projects completed on Upwork and a perfect 5-star rating, I am committed to providing top-quality service every time. Leveraging the latest technologies and industry best practices, I create applications that engage users and enhance their overall experience. Let's work together to develop the perfect app for your business." I work with following technologies and Stacks: 1. Mobile Application Development: I develop Hybrid / Cross-Platform Mobile applications using React Native CLI / EXPO , REDUX. Flutter / Dart . I develop Native Mobile Applications using: iOS (SWIFT), Android JAVA - Kotlin. PWA/progressive Web Application (React.JS). 2. Web Application Development: Full Stack Development, Front-end Development, Back-end Development. MVP Development, SaaS development, Multitenancy Product Development. E-commerce, Social media Websites etc Front End Development: TypeScript, React.js, React remix, vite.js, Next.js, Vue.js, Nuxt.js, TailwindCss Back end Development: Python (Django / flask / FastAPI ), PHP (CodeIgniter / Laravel), Node.js (typescript), Express.js, Nest.js, fastify 3. Database: MongoDB, MySQL, PostgreSQL, SQLite, Amazon Redshift, MariaDB, AWS dynamodb, aurora postgresql 4. Website Designing: HTML5, CSS3 using Bootstrap. Material UI, Ant Design Library, TailwindCss 5. Others: such as bit bucket, GitHub, Firebase, Websocket / socket.io , Redis, nginx, EC2 , S3, RDS, Route53, EBS ( Elastic block store ), Cloud Front, IAM Identity center, Security Groups 6. API / WEB SERVICES Implementation: I have worked with several industry Specific API, SALESFORCE API, Crypto coins payment gateway API STRIPE API HOTELS & FLIGHT BOOKING API Shipping Companies API such as: DHL , UPS, FedEx GOOGLE MAPS API GOOGLE CALENDAR API ZOOM API AGORA.IO chargebee API duffel api MLS grid API Facebook Graph API Instagram Graph API Twitter API mada payment gateway api myfatoorah Api I have experience working on projects across diverse domains, some off them are listed here under. 1. Asset management system: Web Application and Mobile Application for iOS and Android. 2. Location live tracking and WiFi data scanning: Web Application and Mobile Application for iOS and Android. 3. Habit tracking Mobile Application for iOS and Android. 4. Retreat and hotel booking engine: Web Application. 5. Ticket booking system with live seat selection: Web Application. 6. Internet Service plan management system: Web Application and Mobile Application for iOS and Android. 7. Shipping container calculator: Web Application. 8. Mobile application for managing important documents. 9. Job board mobile application and Web Application. 10. SaaS for Hospital care and home care companies: Web Application and Mobile application. 11. Compliance checking and license management: Web Application. 12. Group chat mobile application. 13. Courses booking system: Web and mobile application along with scheduling system. E Learning PWA. Learning languages Mobile App development. 14. SaaS for project management and task management. 15. Boutique hotel and retreat website designing. 16. Equipment rental e-commerce website development. 17. Event posting and chat system: Mobile Application development. 18. E Greeting: Custom greeting e-commerce website and Mobile application development. 19. Bible reading mobile application development with subscription system, Apple and Google Pay. 20. Dummy Flight and hotel ticket booking website for Visa applications. 21. SaaS for creating surveys and managing user responses. 22. Real estate website development with MLS grid integration. 23. SaaS for companies managing work assignment, customer invoicing, and task calendar. 24. Food delivery Mobile application. 25. Facebook Graph API, Instagram Graph API, Twitter API, and LinkedIn API data management. 26. PDF annotation and assignment Web App. 27. Dating website development. 28. Classified listing website development. 29. Travel deals e-commerce website 30. Grocery delivery mobile application development. 31. E-commerce website for selling fine wines. 32. CV and resume creation web application. 33. Employee Payroll management web application. 34. Loan management system web application. 35. Mobile App for Calculating pain score. 36. scheduling system for booking Home inspection appointments along with payment gateway and connection with gohighlevel CRM. 37. Mobile App for HR exam preparing, test engine Mobile App. 38. revenue management system - pull data from quickbooks, mercury API, Stripe API and calculates the revenue. 39. Trading platform, where users can fund the wallet and trade currencies, crypto and stocks. 40. car and bike parts / equipment / marketplace/ vendor buyer concept. 41. SMS marketing system that is connected with Twilio,. Please send a message OR Invite me to your job so we can schedule a zoom meeting.
    Featured Skill Watch
    API
    Web Application
    Web Development
    Django
    Android
    iOS
    JavaScript
    Laravel
    PHP
    Python
    iOS Development
    React
    React Native
    Mobile App Development
    Node.js
  • $20 hourly
    • 5.0/5
    • (75 jobs)
    With over 8 years of proven experience in iOS and Android mobile app development, I've successfully driven impactful solutions for dynamic start-ups and industry giants alike, Including 𝗥𝗲𝗹𝗶𝗮𝗻𝗰𝗲 𝗝𝗶𝗼. Which led them to gain over 𝟒𝟎% 𝐦𝐨𝐫𝐞 𝐫𝐞𝐩𝐞𝐚𝐭𝐢𝐧𝐠 𝐜𝐮𝐬𝐭𝐨𝐦𝐞𝐫 𝐢𝐧 𝐦𝐨𝐛𝐢𝐥𝐞 𝐚𝐩𝐩 and 𝟔𝟎% 𝐦𝐨𝐫𝐞 𝐬𝐢𝐠𝐧𝐮𝐩 then comparing to their website. With my expertise in mobile app development, specializing in cross-platform solutions like Flutter app development and native mobile apps for iOS and Android. My skills in Swift development using SwiftUI and UIKit deliver rapid results, while sleek UI designs crafted in Figma ensure full responsiveness across smartphones and tablets. I've optimized native performance in Android and iOS development, making me an ideal choice for MVP projects that require user authentication and user profile creation. Over the years, I've contributed to the development of 𝟱𝟬+ Android apps andiOS applications, including five major projects reaching 𝟓 𝐦𝐢𝐥𝐥𝐢𝐨𝐧+ 𝐝𝐨𝐰𝐧𝐥𝐨𝐚𝐝𝐬, utilizing Apple Xcode and Android Studio for top-tier outcomes. 𝐖𝐨𝐫𝐤𝐞𝐝 𝐨𝐧 𝐯𝐚𝐫𝐢𝐨𝐮𝐬 𝐩𝐫𝐨𝐣𝐞𝐜𝐭𝐬 𝐢𝐧𝐜𝐥𝐮𝐝𝐢𝐧𝐠: ◆ E-commerce Mobile app development with in-app purchase integrations ◆ IPTV Mobile app development ◆ Event Ticketing Mobile app development ◆ Social Networking Mobile app development ◆ Chat Mobile app development with real-time API integration ◆ Audio/Video Streaming Mobile app development ◆ Text to Speech Mobile app development ◆ Financial Calculator Mobile app development. 𝐎𝐧 𝐭𝐡𝐞 𝐭𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐬𝐢𝐝𝐞, 𝐈'𝐦 𝐩𝐫𝐨𝐟𝐢𝐜𝐢𝐞𝐧𝐭 𝐰𝐢𝐭𝐡 𝐭𝐨𝐨𝐥𝐬 𝐥𝐢𝐤𝐞: ◆ Android Studio, Xcode, Photoshop ◆ Firebase, AWS, Parse, Netsuite, XMPP, Backendless, IBM Watson, Media Wiki ◆ Blockchain and Coinbase API Integration ◆ Maps/Geolocation: Map, MapKit, Mapbox, OpenStreet ◆ Push Notifications: APNS (iOS), GCM (Android), One Signal ◆ Payment Gateways: Braintree, CCAvenue, Google Wallet, Bluefin, Citrus ◆ Ads: Admob, Flurry, Chartboost ◆ Analytics: Google Analytics, Flurry, Fabric's Answers ◆ Mobile Authentication: Digits ◆ Crash Detection: Fabric's Crashlytics 𝙄𝙛 𝙮𝙤𝙪'𝙧𝙚 𝙡𝙤𝙤𝙠𝙞𝙣𝙜 𝙛𝙤𝙧 𝙖 𝙛𝙧𝙚𝙚𝙡𝙖𝙣𝙘𝙚𝙧 𝙬𝙝𝙤 𝙩𝙧𝙚𝙖𝙩𝙨 𝙮𝙤𝙪𝙧 𝙥𝙧𝙤𝙟𝙚𝙘𝙩𝙨 𝙖𝙨 𝙩𝙝𝙚𝙞𝙧 𝙤𝙬𝙣, 𝙬𝙞𝙩𝙝 𝙙𝙚𝙙𝙞𝙘𝙖𝙩𝙞𝙤𝙣 𝙖𝙣𝙙 𝙖 𝙛𝙤𝙘𝙪𝙨 𝙤𝙣 𝙛𝙞𝙣𝙙𝙞𝙣𝙜 𝙩𝙝𝙚 𝙗𝙚𝙨𝙩 𝙨𝙤𝙡𝙪𝙩𝙞𝙤𝙣𝙨, 𝙄'𝙙 𝙗𝙚 𝙝𝙖𝙥𝙥𝙮 𝙩𝙤 𝙨𝙘𝙝𝙚𝙙𝙪𝙡𝙚 𝙖 15-𝙢𝙞𝙣𝙪𝙩𝙚 𝙘𝙖𝙡𝙡 𝙩𝙤 𝙙𝙞𝙨𝙘𝙪𝙨𝙨 𝙮𝙤𝙪𝙧 𝙞𝙙𝙚𝙖𝙨.
    Featured Skill Watch
    iOS
    Android
    Mobile App
    Mobile App Development
    SwiftUI
    React Native
    Dart
    Flutter
    Java
    Kotlin
    Android App Development
    Objective-C
    Swift
    iOS Development
    Native App Development
  • $22 hourly
    • 4.8/5
    • (55 jobs)
    Mobile App Developer, specialized in iOS, Android, and React Native mobile app design and development, 12+ years extensive experience in Native iOS development for iPhone & iPad, Android App, Web3 app, Hybrid & Cross-platform mobile app development, and building innovative, highly customized, robust, scalable, and feature-packed mobile applications. 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬: ⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷ ✅ iOS–iPad/iPhone app development ✅ Android app development ✅ Cross-platform mobile app development ✅ Mobile game development ✅ Internet of Things (IoT) ✅ AR/VR app development 𝐏𝐫𝐨𝐯𝐢𝐝𝐞 𝐚 𝐨𝐧𝐞-𝐬𝐭𝐨𝐩 𝐬𝐡𝐨𝐩 𝐟𝐨𝐫 𝐢𝐎𝐒 𝐚𝐧𝐝 𝐀𝐧𝐝𝐫𝐨𝐢𝐝 𝐚𝐩𝐩 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: ⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷ ✅ 100% Guaranteed quality delivery or your money back ✅ Exceptional Mobile App Development (iOS, Android, Cross-Platform) ✅ Top-Tier Web Application Development (GCP, AWS, Custom VPS, Dedicated) ✅ Specialist in WordPress & E-commerce platforms ✅ Striking UI/UX Design ✅ Technological Excellence ✅ Turn your vision into a reality with me using proven web and mobile app development processes 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬 𝐈'𝐯𝐞 𝐬𝐞𝐫𝐯𝐞𝐝: ⟷⟷⟷⟷⟷⟷⟷⟷ ✅ E-commerce (Retail, grocery, SAAS, B2B, and B2C) ✅ Audio book streaming services, Video streaming services ✅ Work placement and talent seeking marketplaces ✅ Real estate, Property management, and Construction Management ✅ Booking and event services ✅ Legal and law ✅Wellness and coaching 𝐌𝐲 𝐒𝐤𝐢𝐥𝐥 𝐒𝐞𝐭: ⟷⟷⟷⟷ ✅ Hybrid Mobile App Development ✅ AI Mobile App Development ✅ Native Mobile App Development ✅ BLE Mobile App Development ✅ Marketplace Mobile App Development ✅ Freelancing Marketplace Mobile App Development ✅ Movie Review Mobile App Development ✅ Nvidia Omniverse Expert ✅ Excellent command in React Native (Redux Master) , React, Flutter ,GPT-3, GPT-4 ✅Chat GPT Api Integration ✅ Experience with MVP and MVC architecture patterns. ✅ Skilled with ReactJS, Angular, Node JS/Mongo DB/PHP7/HTML5/MYSQL or PostgreSQL programming languages. I have expertise in the following:- ✅ iOS 14, Transparency, Marketing Integrations, SKADNetwork ✅ To build a Native iOS Application using Swift, Xcode. ✅ Web services-based applications using React, Angular, PHP ✅ Cloud backend (AWS, Google Cloud Platform) ✅ Database (SQLite, Postgres, MySQL, ms-SQL) ✅ Social media / Social Network-based Application ✅ Google Map integrations and background updates ✅ Ads services ✅ Chat Applications (Real-time) ✅ Fitness/Health sector apps ✅ Animation based applications ✅ Calendar-based applications ✅ Audio / Video Applications ✅ Reskinning of current applications ✅ Convert application into the latest iOS ✅ Bug solving for exiting applications ✅ Integrate payment gateway ✅ Experience in Bluetooth, JSON/XML parsing. ✅ Auth based login via Firebase i.e. email/password, Gmail, Facebook, and Apple ID in React Native and Flutter Apps ✅ FFMPEG (Create Video from Photos and music) We always prefer to keep our work transparent, and for this reason, we like to be in touch with our valued clients on a daily, weekly & monthly basis. According to the requirement, we use many types of project management tools for iOS & Android mobile app development projects communication. ⦿ Upwork Message Board ⦿ JIRA ⦿ Azure DevOps Server ⦿ Asana ⦿ Trello ⦿ Zoho Projects "𝐈 𝐚𝐦 𝐚𝐯𝐚𝐢𝐥𝐚𝐛𝐥𝐞 𝐌𝐨𝐧𝐝𝐚𝐲 𝐭𝐨 𝐅𝐫𝐢𝐝𝐚𝐲 𝐟𝐨𝐫 𝐟𝐮𝐥𝐥-𝐭𝐢𝐦𝐞 𝐰𝐨𝐫𝐤, 𝐜𝐨𝐦𝐦𝐢𝐭𝐭𝐢𝐧𝐠 𝐮𝐩 𝐭𝐨 𝟒𝟎 𝐡𝐨𝐮𝐫𝐬 𝐩𝐞𝐫 𝐰𝐞𝐞𝐤 (𝟖 𝐡𝐨𝐮𝐫𝐬 𝐩𝐞𝐫 𝐝𝐚𝐲) 𝐚𝐬 𝐚 𝐝𝐞𝐝𝐢𝐜𝐚𝐭𝐞𝐝 𝐌𝐨𝐛𝐢𝐥𝐞 𝐚𝐩𝐩 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫."
    Featured Skill Watch
    iPad App Development
    Mobile App Design
    UX & UI Design
    Social Networking Development
    AR & VR Development
    Mobile App Development
    Push Notifications
    iOS Development
    Swift
    React Native
    Hybrid App Development
    Native App Development
    Android App Development
    iOS
    Flutter
  • $20 hourly
    • 4.9/5
    • (65 jobs)
    I am Director at Differenz System Pvt Ltd. We have expertise in all leading Mobile and Web application development technology. We can conceptualize your idea, put them into designs to relate it with real word implementation and after that, when you have clear picture about your project, we start with development. This reduces margin of misunderstanding and errors to almost Nil. I have noticed many Upwork clients requesting Freelancers and not Agency. My question is why not Agency? We give additional facilities like Free consultation, Project management, Professional QA etc. all at the same rate as Freelancers. We charge you only for development hours. And you never have risk of finding another developer if your current developer leaves project for whatsoever reason. We are a team of 140+ people. Imagine the knowledge bank we can put in your project. I hope this will help me win your trust in Agencies and give us an opportunity to be part of your wonderful project. Regarding our experience and expertise please go through our Upwork profile, I am sure it will give you fair idea about us.
    Featured Skill Watch
    WordPress
    Mobile App
    API
    Apex
    .NET Core
    Web Application
    Salesforce
    Android
    iOS Development
    Mobile App Development
    Swift
    Flutter
    React
    Node.js
    Kotlin
  • $49 hourly
    • 4.9/5
    • (82 jobs)
    ✅ Rewarded as 🏆 EXPERT-VETTED 🏆 by Upwork (𝗧𝗼𝗽 1%) ✅ 15000+ hours and still counting ✅ 56+ jobs completed successfully ✅ 100% Job Success (Client Satisfaction Ratio) ✅ High-Quality Work ✅ Budget-friendly ✅ Fluent English ---------------------------------------------- “The team is highly professional and the staff are exceptionally efficient. They adhere to deadlines consistently. I greatly enjoyed working with them and look forward to continuing our collaboration on future projects” – Itamar I am a Senior Mobile Developer with over 8 years of industry experience. My team and I have successfully contributed to more than 60 projects that vary in scale and complexity. Our roles have ranged from leading a team of 15+ senior developers in enterprise-level projects to serving as an individual contributor. ---------------------------------------------- Here's what I can offer: I can make things a lot easier for you and your business. I believe in open communication and work closely with you throughout the development process to ensure the final app perfectly aligns with your business needs and branding requirements. 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: I've majored in software engineering, and I've used a myriad of technologies to help various businesses create mobile apps that have generated millions in revenue. During the last 5+ years, I have developed many different types of iOS and Android mobile apps. 𝗙𝗼𝗼𝗱 𝗱𝗲𝗹𝗶𝘃𝗲𝗿𝘆 𝗔𝗽𝗽, 𝗢𝗻-𝗱𝗲𝗺𝗮𝗻𝗱 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽, 𝗥𝗶𝗱𝗲 𝗜𝗻𝘀𝘁𝗿𝘂𝗰𝘁𝗼𝗿 𝗕𝗼𝗼𝗸𝗶𝗻𝗴 𝗔𝗽𝗽, 𝗦𝗼𝗰𝗶𝗮𝗹 𝗠𝗲𝗱𝗶𝗮 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽, 𝗧𝗮𝘀𝗸 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁 𝗔𝗽𝗽 (𝗹𝗶𝗸𝗲 𝗧𝗼-𝗗𝗼), 𝗜𝗻𝘃𝗲𝘀𝘁𝗼𝗿𝘀 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁 𝗔𝗽𝗽, 𝗦𝗽𝗼𝗿𝘁𝘀 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽, 𝗘-𝗰𝗼𝗺𝗺𝗲𝗿𝗰𝗲 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽, 𝗘𝘃𝗲𝗻𝘁 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽, 𝗚𝗿𝗼𝗰𝗲𝗿𝘆 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽, 𝗙𝗿𝗲𝗲𝗹𝗮𝗻𝗰𝗲 𝗠𝗮𝗿𝗸𝗲𝘁𝗽𝗹𝗮𝗰𝗲 𝗔𝗽𝗽, 𝗛𝗼𝗺𝗲 𝗦𝗲𝗿𝘃𝗶𝗰𝗲 𝗕𝗼𝗼𝗸𝗶𝗻𝗴 𝗔𝗽𝗽, 𝗜𝗻𝘃𝗲𝗻𝘁𝗼𝗿𝘆 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁 𝗔𝗽𝗽, 𝗟𝗲𝗮𝗿𝗻𝗶𝗻𝗴 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽, 𝗔𝗽𝗽𝗼𝗶𝗻𝘁𝗺𝗲𝗻𝘁 𝗕𝗼𝗼𝗸𝗶𝗻𝗴 𝗔𝗽𝗽, 𝗩𝗲𝗻𝘂𝗲 𝗕𝗼𝗼𝗸𝗶𝗻𝗴 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽, and many more. Website 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: As for Web developer, I've created stunning, eye-catching, and appealing websites that have garnered attention and applause from the best in the business. As it stands now, I've developed the web for: ✔ Custom Web Applications ✔ Landing Pages for Businesses ✔ Analytical Dashboards for Businesses ---------------------------------------------- Industries We've Worked In: Healthcare mobile app development 🏥 Education mobile app development 📚 E-Commerce mobile app development💲 Social Networking mobile app development🚀 Travel mobile app development🛫 Time Management mobile app development⏰ Beauty mobile app development💄 Entertainment mobile app development🎉 Delivery mobile app development📦 Banking mobile app development🏦 NFTs development🖼️ Blockchain ₿ mobile app development Ecology mobile app development🌱 Design mobile app development🖌️ Sports mobile app development🥊 I am a skilled SDK Developer | Expert in iOS SDK, Android SDK, JDK, React SDK, TensorFlow SDK, and AWS SDK | I specialize in creating robust and efficient software solutions using Windows SDK, Web SDKs, Game development SDKs, Cloud platform SDKs. During my professional path I developed wide variety of SDKs including: Swift SDK, Kotlin SDK, Dart SDK, Java SDK, Flutter SDK, A\B testing SDK. Have I missed anything? Send me a message, and we can talk more in detail. ---------------------------------------------- If you're looking for a dedicated and proficient Full Stack Developer/team with expertise in Mobile App Development, Android and iOS platforms, and Website development, I am excited to be a part of your team and contribute to the success of your project. 🚀If you have any queries, message me on my profile for a good conversation, or we can hop on a quick call to discuss your project. I specialize in Mobile App Development for iOS and Android, using Flutter, React Native, and native technologies to build high-performance applications. With expertise in Full-Stack Development, I seamlessly integrate frontend and backend technologies, including Flutter + Laravel and various API solutions. My experience extends to AI and Machine Learning, incorporating ChatGPT API, DALL-E API, and AI-powered applications. I have worked extensively in Healthcare & Apple HealthKit integration, E-commerce & Marketplace Solutions, and custom SDK development, including iOS SDK, Android SDK, TensorFlow SDK, and AWS SDK. Additionally, I develop business and enterprise solutions for companies of all sizes, from startups to organizations with 1000+ employees. My expertise also covers AI-driven Speech-to-Text applications, Dating & Social platforms, NFT Marketplace development, Waste Management & Remediation solutions. ❗❗ Check out my portfolio! ❗❗
    Featured Skill Watch
    Objective-C
    Tablet
    Firebase
    API Integration
    Kotlin
    Swift
    React Native
    JavaScript
    Smartphone
    In-App Purchases
    User Profile Creation
    User Authentication
    Android
    iOS
    Mobile App Development
  • $120 hourly
    • 5.0/5
    • (42 jobs)
    ✅ 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 Watch
    iPad App Development
    Mobile App Development
    Android App Development
    iOS Development
    Firebase
    iOS
    Swift
    Objective-C
    iPadOS
  • $30 hourly
    • 4.9/5
    • (33 jobs)
    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 Watch
    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
  • $45 hourly
    • 4.5/5
    • (263 jobs)
    👋 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 Watch
    Facebook Development
    Sports & Fitness
    Twitter/X API
    Health & Fitness
    iOS SDK
    RESTful Architecture
    Mobile App Development
    iOS Development
    tvOS
    Amazon Web Services
    Swift
    Objective-C
  • $40 hourly
    • 4.6/5
    • (32 jobs)
    I am lead software engineer with more than 9 years of development experience and more than 40 projects successfully released. I have a solid background in OOP concepts and modern software architecture approaches. I worked on projects from different business areas and different team sizes. First of all I do my best for everybody involved in a project to understand the problem that the software should solve. It brings a lot of benefits to both business and development sides as everybody has a clear vision of what to do. Some technologies I am familiar with are listed below. Mobile - Android(Java/Kotlin), ios(Objective C/Swift), Flutter. Web(back-end) - Spring, SpringBoot, Node js, AWS. Database - Sqlite, MongoDB, MySQL, Postgresql. APIs, services and integrations - Facebook API, Google APIs(Places, Drive, Fit, Plus, Nearby, etc), Firebase, NDK, Stripe, Square, Nethunt and a lot of other.
    Featured Skill Watch
    iOS SDK
    iOS Development
    Kotlin
    Flutter
    TypeScript
    Dart
    Node.js
    MongoDB
    Objective-C
    Swift
    Android
  • $20 hourly
    • 5.0/5
    • (28 jobs)
    ✅ Rewarded as 🏆 𝗧𝗢𝗣 𝗥𝗔𝗧𝗘𝗗 𝗣𝗟𝗨𝗦 🏆 by Upwork (𝗧𝗼𝗽 𝟯%) ✅ 4,600+ hours and still counting ✅ 27+ jobs completed successfully ✅ 6+ Years Of Experience in Flutter (Early bird in Flutter Tech Stack) ✅ High-Quality Work ✅ 100% Job Success (Client Satisfaction Ratio) ✅ Fluent English Verified 🔥 I am confident in delivering projects on time and meeting the 110% quality criteria. Ready to take your brand and business to the next level? ✔️ I want to help. Which of the following areas do you need help with? Contact me right away! 📌 Flutter App Development 📌 Firebase, API Integration, Google Maps, Push Notifications 📌 In-App Purchases, Local Database, Audio and Video Integration, Chat App 📌 Payment Gateway Integration 📌 Web App Development 📌 Admin Panel Development 📌 Mobile App with Web-based admin panel 📌 Desktop App Development MY UPWORK CLIENTS SHARING THEIR EXPERIENCE WORKING WITH ME:👇 ★★★★★ 5.00 "Absolutely amazingly to work with highly educated in flutter as well as highly educated in backend. We look forward to hiring parth again! Thank you so much parth!!!!" - Brim Leal, VibeIRL Inc, USA ★★★★★ 5.00 "Parth is a fantastic engineer and our entire team has enjoyed working with him. He rebuilt our entire client-facing application in Flutter and worked tirelessly to ensure it was working as expected, including collaborating with individual backend engineers to resolve issues. I would definitely recommend him!"" - John Williamson, Lockbox AI Inc, USA ★★★★★ 5.00 "Parth did a great job on our flutter project." - Peter Marks, Georgia Associated Realty LLC, USA These are some testimonials taken directly from my Upwork profile 𝗽𝗿𝗼𝘃𝗲 that 𝗜 𝗰𝗮𝗻 𝗱𝗲𝗹𝗶𝘃𝗲𝗿 𝘁𝗵𝗲 𝗽𝗿𝗼𝗱𝘂𝗰𝘁 𝘄𝗶𝘁𝗵 𝗴𝗿𝗲𝗮𝘁 𝗾𝘂𝗮𝗹𝗶𝘁𝘆 𝗼𝗻 𝘁𝗶𝗺𝗲 𝘄𝗶𝘁𝗵 𝘇𝗲𝗿𝗼 𝘄𝗼𝗿𝗿𝗶𝗲𝘀. 𝗜 𝗵𝗲𝗹𝗽 𝘆𝗼𝘂 𝘄𝗶𝗻, 𝗻𝗼𝘁 𝘄𝗮𝘀𝘁𝗲 𝘆𝗼𝘂𝗿 𝘁𝗶𝗺𝗲. For me, 𝗖𝗟𝗜𝗘𝗡𝗧 𝗦𝗔𝗧𝗜𝗦𝗙𝗔𝗖𝗧𝗜𝗢𝗡 𝗖𝗢𝗠𝗘𝗦 𝗙𝗜𝗥𝗦𝗧.🎯 🎯 Expertise Across Varied Industries: ✔️ Healthcare ✔️ E-learning ✔️ Fintech ✔️ Social Media ✔️ Retail ✔️ Advanced Media Content ✔️ Sports ↪️ Why you should choose me: ✅ 100% client satisfaction. ✅ 24/7 Availability ✅ Strong technical skills and business solutions provider. ✅ Top-notch communication and responsiveness. You will always feel in control of the project. ✅ Well-defined processes to keep you updated on each phase of development. ✅ Attitude with No excuses just get it done. 💬 𝗙𝗥𝗘𝗘 𝗖𝗢𝗡𝗦𝗨𝗟𝗧𝗔𝗧𝗜𝗢𝗡: My consultation is 𝗙𝗥𝗘𝗘. Let's schedule an introductory call and discover the possibilities of working together. Even if we don't work together, you will get some tips/ideas that can be helpful to your project. Just click on the '𝗜𝗻𝘃𝗶𝘁𝗲 𝘁𝗼 𝗝𝗼𝗯' button and experience yourself.🙌 Thank you for spending your $$ to review my profile because TIME IS MONEY : See you other side :) Parth P.
    Featured Skill Watch
    Hybrid App Development
    User Authentication
    Android
    Firebase
    iOS
    Push Notifications
    Shopify
    Ecommerce Website Development
    Flutter
    Mobile App Development
    Payment Gateway Integration
    GitHub
    Dart
    JavaScript
    API Integration
  • $20 hourly
    • 5.0/5
    • (8 jobs)
    I am a top-rated plus freelancer on Upwork, having completed many Healthcare projects in Android and iOS development using Swift, Objective-C, Kotlin, and Java. With 15 years of experience in mobile and web application development, I represent Technosoft Solutions, a company focused on healthcare software development. Technosoft is known for its exceptional Java/J2EE, .Net, Angular, React, Android, and iOS development capabilities, I bring a proven track record and strong references to the table. Our team is distinguished by its excellent communication skills and familiarity with JIRA and Trello, seamlessly integrating with on-site teams through daily scrums and status calls. Our specialization in healthcare software development has led us to focus primarily on solutions for the U.S. market. Over our 15-year journey, we have developed numerous web and mobile applications for hospitals, pharmacies, physicians, patients, and device manufacturers. Our software is deployed in over a thousand U.S. hospitals and clinics, demonstrating our deep understanding of HL7, HIPAA, EDI, and other healthcare standards. Our portfolio includes a wide range of applications tailored to various healthcare needs, including chronic care, rehabilitation, mental health, burn care, and more. We provide comprehensive HIPAA implementation services, from application compliance to security training, audits, vulnerability testing, and facility compliance. As a HIMSS-certified healthcare security professional since 2002 and a longstanding member of the Upwork community since 2006, my commitment to quality and customer satisfaction is reflected in our 100% success rate and five-star ratings. At Technosoft, we pride ourselves on developing scalable applications that serve over 150,000 users and more than 1,000 hospitals and clinics across the USA. Our Harvard University graduate leadership, coupled with an affordable hourly rate starting at $18, ensures the highest quality of service. Our consistent 100% success rate over the last decade is a testament to our dedication and focus on quality software development. We invite you to review our portfolio and customer feedback to see the unparalleled level of service we provide. Give us the opportunity to demonstrate our capabilities and commitment to excellence.
    Featured Skill Watch
    MERN Stack
    MEAN Stack
    Healthcare IT
    Health Level 7
    Android
    J2EE
    HIPAA
    iOS Development
    Angular
    React
    ASP.NET
  • $30 hourly
    • 4.9/5
    • (136 jobs)
    ✅ 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 Watch
    NoSQL Database
    Python
    Product Development
    Internet of Things
    Wearable Technology
    Bluetooth
    nRF52
    NFC
    Firmware
    Hardware Design
    React Native
    Flutter
    iOS Development
    Android App Development
  • Want to browse more freelancers?
    Sign up

How it works

1. Post a job

Tell us what you need. Provide as many details as possible, but don’t worry about getting it perfect.

2. Talent comes to you

Get qualified proposals within 24 hours, and meet the candidates you’re excited about. Hire as soon as you’re ready.

3. Collaborate easily

Use Upwork to chat or video call, share files, and track project progress right from the app.

4. Payment simplified

Receive invoices and make payments through Upwork. Only pay for work you authorize.

Trusted by

How do I hire a Watch Freelancer on Upwork?

You can hire a Watch Freelancer on Upwork in four simple steps:

  • Create a job post tailored to your Watch Freelancer project scope. We’ll walk you through the process step by step.
  • Browse top Watch Freelancer talent on Upwork and invite them to your project.
  • Once the proposals start flowing in, create a shortlist of top Watch Freelancer profiles and interview.
  • Hire the right Watch Freelancer for your project from Upwork, the world’s largest work marketplace.

At Upwork, we believe talent staffing should be easy.

How much does it cost to hire a Watch Freelancer?

Rates charged by Watch Freelancers on Upwork can vary with a number of factors including experience, location, and market conditions. See hourly rates for in-demand skills on Upwork.

Why hire a Watch Freelancer on Upwork?

As the world’s work marketplace, we connect highly-skilled freelance Watch Freelancers and businesses and help them build trusted, long-term relationships so they can achieve more together. Let us help you build the dream Watch Freelancer team you need to succeed.

Can I hire a Watch Freelancer within 24 hours on Upwork?

Depending on availability and the quality of your job post, it’s entirely possible to sign up for Upwork and receive Watch Freelancer proposals within 24 hours of posting a job description.

A talent edge for your entire organization
Enterprise Suite has you covered for hiring, managing, and scaling talent more strategically.
Schedule a call

Looking to hire for long-term or full-time assignments? See how Full-time hiring on Upwork simplifies the process.