Hire the Best QNX Developers

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Hamza R.

Islamabad, Pakistan

$20/hr
4.9
32 jobs

I’m Hamza a Biomedical Engineer with a passion for Embedded Systems, IoT, Electronics, and Robotics. I turn ideas into real, working prototypes and products. Whether it’s designing smart devices, building automation systems, or creating medical technology, I bring innovation to life. What I Do Best: Embedded Systems & IoT Experience with ESP32, NRF52, ATMEL, STM32, PSOC, PIC Work with Raspberry Pi, VisionFive (Linux Board), and Unihiker Programming Proficient in C/C++, Python, Java, MATLAB, JavaScript, and Flutter Connectivity & Communication Skilled in UART, I2C, SPI, MQTT, BLE, BLE Mesh, Sigfox, and Wi-Fi Hardware Design & Prototyping Specialize in PCB Design, 3D Modeling, and Product Prototyping GUI Development Develop Touchscreen Interfaces, E-Paper & TFT Displays, Web Dashboards, and Desktop Applications Work with LVGL, Tkinter, PyQt, and Kivy Framework IoT & Cloud Integration Experienced with AWS IoT, Firebase, ThingsBoard, and WebSocket-based real-time control Industrial IoT (IIoT) Expertise in CAN Communication, Factory Automation, and Smart Sensor Networks Remote Monitoring & OTA Updates Work with ESP-IDF OTA, BLE DFU, and Cloud-Based Device Management I’ve built industrial prototypes, smart sensors, automation systems, and medical devices, real-time data processing and device connectivity. If you need a reliable, high-quality solution, let’s make it happen! Let’s Collaborate!

  • ESP32
  • Arduino
  • C++
  • MATLAB
  • PCB Design
  • Embedded C
  • STM32
  • nRF52
  • Python
  • FreeRTOS
  • Embedded System
  • Firmware Programming
  • Microcontroller Programming
  • Atmel AVR
  • Internet of Things
Hansong Z.

Chongqing, China

$20/hr
5.0
7 jobs

Full Stack Developer (7 Years) | Full-Time Freelancer I provide one-stop software solutions for startups and businesses. Instead of hiring separate frontend and backend developers, I build your entire product from the ground up—from server architecture to cross-platform clients. What I Deliver: - End-to-End Lifecycle: Architectural design - Backend/API - Pixel-perfect UI - Market Release. - Cross-Platform Expansion: Seamless apps for Android, iOS, Web, Desktop, and Wear OS with high performance. - Scalable Backend Systems: Fast, reliable, and maintainable backend services powered by Rust or Kotlin for long-term product growth. - IoT & Hardware Expertise: Advanced integration for Android-based IoT clients, including Kiosk Mode, Serial Port communication, etc. - Fast Delivery: Skilled in leveraging AI agents to speed up development, reduce repetitive work, and quickly turn ideas into production-ready features. Core Tech Stack: - Frontend & Mobile: Kotlin Multiplatform, Compose Multiplatform - Backend: Axum (Rust), Ktor (Kotlin) I turn sketches into flawless, scalable apps. As a full-time freelancer, I guarantee fast, transparent communication and dedicated availability. Let’s build something great together.

  • Android App Development
  • iOS Development
  • App Development
  • Software Development
  • Desktop Application
  • Wear OS
  • Tablet
  • Kotlin
  • Swift
  • SwiftUI
  • Native App Development
  • Full-Stack Development
  • Back-End Development
  • Enterprise Software
  • Kiosk
  • Android Tablet
  • Android App
  • Docker
Denis D.

Yerevan, Armenia

$65/hr
5.0
32 jobs

"Hands-down, one of the best devs I've worked with on Upwork." - ScreenStory Senior C++ Engineer with 18+ years building real-time and embedded systems, multimedia pipelines, and high-performance desktop applications. Top Rated Plus on Upwork - 9,900+ hours and $400K+ earned across 28+ long-term engagements. MORE FROM CLIENTS "Excellent in every regard: communication, work, making logical inferences, asking good questions. Truly the top of the top." - Skan AI "A very reliable, knowledgeable and professional developer who is a pleasure to work with." - Clickdrive WHAT I BUILD - Rich UI/UX and high performance desktop applications on C++/Qt, C# .Net Framework WPF/UWP/WinUI XAML - Multimedia & Real-Time Screen recording engines (Desktop Duplication API, Windows Graphics Capture, GDI), low-latency video/audio pipelines on FFmpeg, WebRTC streaming with custom builds and Janus SFU, DirectX GPU compositing with custom pixel shaders, audio DSP with RNNoise. - Embedded & HMI Industrial automation, locomotive on-board systems, HMI on Qt/QML, ModBus / RS-232/485 / Can. Codex industrial labeling software for ALE sas - Real-Time Backends SCADA alarm-module backend with high-throughput low-latency event handling, gRPC, multithreaded C++17/20 architecture. - Native Library Bindings C++ cores with bindings to Electron (Node-API), Flutter (FFI), Python. Cross-platform Windows and macOS. - Engineering Infrastructure CI/CD on Jenkins and Azure DevOps, self-hosted Sentry deployment, CrashRpt, automated quality gates, structured Git workflows. HIGHLIGHTS - 7 years as lead engineer on a portfolio of consumer multimedia and document-processing applications (architecture + implementation across a team of 3) - Locomotive driver HMI deployed on operational locomotives in real-world service - Automated engine test bench: reduced testing time by 40%, increased throughput from 6 to 10 engines per shift - Currently leading C++/MFC -> Qt migration on the Ham Radio Deluxe product suite (41,500+ active users) Core stack: C++ (17/20) · Qt (QML, QWidgets) · CMake · vcpkg · FFmpeg · WebRTC · Desktop Duplication API · Media Foundation · DirectX · MFC · gRPC · Multithreading · ModBus · Windows Embedded · C# .NET · Electron Node-API · Jenkins · Azure DevOps · Sentry WHAT I'M LOOKING FOR Long-term engagements (6+ months) where deep C++ expertise and architectural ownership matter. Equally comfortable in greenfield architecture and rescuing legacy codebases. Available for fixed-price projects and hourly contracts.

  • C++
  • C
  • C#
  • Microsoft Visual C++
  • C++/CLI
  • Screenshot & Screen Recording Software
  • Electron
  • Qt Framework
  • Screen Recording
  • .NET Framework
  • WebRTC
  • Desktop Application
  • Embedded System
  • FFmpeg
  • Microsoft Foundation Class Library
  • CMake
  • Windows API Development
Mohamed E.

Al Mansurah, Egypt

$60/hr
5.0
8 jobs

👋 Hi, I’m Mohamed — a Top Rated🏆 Senior Software Engineer. 🚀 I help companies design, build, and deliver high-performance software systems — from computer vision and AI pipelines to real-time desktop applications and embedded platforms. 🧩 What I deliver: ✅ Industrial Computer Vision Systems 🔹Integration with industrial cameras (Basler, Luxonis, FLIR / Point Grey) 🔹High-accuracy inspection, measurement, and defect detection 🔹Optimized OpenCV pipelines in C++ and Python 🔹Hybrid pipelines combining deep learning with classical computer vision for robustness ✅ Deep Learning (ResNet, U-Net, YOLO, MediaPipe, ...) 🔹Custom dataset creation, labeling, and curation 🔹Inference optimization for CPU, GPU, and edge devices 🔹YOLO for real-time object detection, segmentation, OBB, and pose estimation 🔹YOLO fine-tuning and transfer learning for domain-specific data 🔹MediaPipe for pose estimation, hand tracking, face landmarks, and motion analysis ✅ Real-Time & Performance-Critical Software 🔹Low-latency C++ systems optimized for speed and memory 🔹Multithreading, SIMD, profiling, and algorithmic optimization 🔹GPU acceleration (CUDA) when justified 🔹Designed for long-running, production-grade operation under real-world constraints ✅ Embedded & Edge AI 🔹Vision and AI deployment on Raspberry Pi 🔹Sensor integration, control logic, and hardware-in-the-loop testing with ESP32, Arduino ✅ Full Project Ownership 🔹System architecture and technical leadership 🔹Desktop GUIs: Qt, MFC, OpenGL 🔹Clean handover, documentation, and maintainable codebases 👉 Let's discuss how I can bring your AI, computer vision, or embedded system project to life.

  • C++
  • Python
  • Qt Framework
  • Computer Vision
  • OpenCV
  • Deep Learning
  • PyTorch
  • Machine Learning
  • QML
  • YOLO
  • MATLAB
  • OpenGL
  • Microsoft Foundation Class Library
  • Raspberry Pi
  • ESP32
  • Robotics
Peng K.

Chengdu, China

$35/hr
5.0
7 jobs

Career Objective: Desktop Application Development (Electron, C++, Qt) and Industrial IoT Protocols, specifically JT/T 808 & JT/T 1078. I focused on Desktop Development (Electron/C++/Qt) and Telematics (JT/T 808/1078), I deliver end-to-end solutions from low-level protocol parsing to modern Vue frontends. I have proven experience implementing complex vehicle-to-platform systems, handling registration, heartbeat, and video control (0x9101/0x9102). With strong stress resistance and a rapid learning curve, I excel at transforming technical requirements into production-ready software. Whether it's high-performance C++ components or intuitive Electron apps, I ensure robust, hands-on delivery.

  • Desktop Application
  • C++
  • Qt Creator
  • Vue.js
  • C
  • Linux
  • Streaming Platform
  • Video Stream
Mehar A.

Faisalabad, Pakistan

$15/hr
4.3
31 jobs

5+ years of experience Embedded Systems, IoT, and AI/ML Developer with hands-on experience in designing, programming, testing, and deploying microcontroller-based and smart AI systems. I specialize in building intelligent, reliable, and high-performance solutions using industry-standard platforms such as: ESP32 / ESP8266 (WiFi, BLE, FreeRTOS, ESP-IDF, PlatformIO) Arduino (AVR, SAMD, ARM, STM32) Raspberry Pi / Linux SBCs (Python, automation, camera systems, AI/ML applications) Microcontrollers: STM32, PIC, Atmel, ARM Cortex-M series Wireless Technologies: WiFi, BLE, LoRa, GSM, Zigbee IoT Platforms: MQTT, Firebase, Blynk, ThingsBoard, AWS IoT, Azure IoT 💎 Expertise in ESP32, STM32, Raspberry Pi, Edge AI, and sensor-based systemsAI Embedded System Engineer ESP32, STM32, Raspberry Pi,AI, Computer Vision, YOLO, PCB Design, OpenCV, TensorFlow,IoT, MQTT, HTTP, CoAP, AWS IoT Core, TinyML, Edge AI, AI Automation, AI Services, Smart Devices, Object Detection, Face Recognition, Gesture Recognition, Arduino, Embedded Systems, Firmware, Multilayer PCB,ThingsBoard, Node-RED, Home Assistant, Smart Home, Industrial IoT, Sensors, Actuators, Motor Control, Low I am a professional Embedded Systems, IoT, and AI/ML Developer with hands-on experience in designing, programming, testing, and deploying microcontroller-based and smart AI systems. I specialize in creating intelligent, reliable, and high-performance solutions using industry-leading platforms such as: ESP32 / ESP8266 (WiFi, BLE, FreeRTOS, ESP-IDF, PlatformIO) Arduino (AVR, SAMD, ARM, STM32) Raspberry Pi / Linux SBCs (Python, automation, camera systems, AI/ML applications) Microcontrollers: STM32, PIC, Atmel, ARM Cortex-M series Wireless Technologies: WiFi, BLE, LoRa, GSM, Zigbee IoT Platforms: MQTT, Firebase, Blynk, ThingsBoard, AWS IoT, Azure IoT Machine Learning & AI: Edge AI, TensorFlow Lite, TinyML, AI-driven sensor analytics Sensors, actuators, industrial protocols, and communication interfaces PCB design, schematic development, hardware prototyping, and testing I help clients build efficient, intelligent, low-power, production-ready embedded systems from concept to fully working prototype. My work includes firmware development, AI/ML integration, hardware-software integration, IoT cloud connectivity, and mobile app development for IoT dashboards and device control. 🔧 What I Can Do for You ✓ Custom firmware development for ESP32, Arduino, Raspberry Pi, STM32 ✓ IoT device design with real-time monitoring, cloud connectivity, and AI-driven analytics ✓ Mobile app integration (Android/iOS) for IoT products ✓ Edge AI and Machine Learning for sensors and automation ✓ Sensor integration, calibration, and smart data processing ✓ WiFi/BLE/LoRa/GSM connectivity & cloud integration ✓ Python automation, Raspberry Pi projects, and AI/ML applications ✓ PCB design, schematic creation, board layout, and prototyping ✓ Debugging, optimization, and device performance improvements ✓ Industrial automation, smart devices, and AI-enabled systems 🚀 Why Clients Choose Me Clean, modular, and well-documented code Strong debugging, problem-solving, and AI/ML expertise Ability to deliver end-to-end IoT + AI solutions Fast communication, professional work ethic, and on-time delivery Experience in consumer devices, home automation, robotics, industrial systems, and AI-driven applications If you're building a smart device, IoT product, AI-enabled system, automation solution, sensor network, or any embedded electronics project, I can help you bring your idea to life with expert-level development and reliable results. 📩 Ready to start building your next AI-powered embedded or IoT solution? Let’s talk!

  • Embedded System
  • PCB Design
  • ESP32
  • Raspberry Pi
  • Computer Vision
  • STM32
  • Artificial Intelligence
  • KiCad
  • Robotics
  • Machine Learning
  • Embedded Linux
  • Python
  • AWS IoT Device Management
  • Arduino
  • C++
  • Electronics
  • Electrical Engineering
  • Internet of Things
  • Drone
  • Firmware Programming

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