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I help hardware startups and product teams build production-ready embedded systems across firmware, embedded Linux, IOT and edge AI. Top Rated Plus | 100% Job Success | 19,000+ Upwork hours | 80+ Jobs Completed My strongest work is turning prototypes into stable, testable, production-ready systems: MCU firmware, hardware bring-up, connectivity, embedded Linux gateways, MQTT/AWS IoT telemetry, camera pipelines, and edge-AI inference. EMBEDDED FIRMWARE • ESP32 / ESP-IDF firmware for Wi-Fi, BLE, sensors, MQTT, OTA, and cloud-connected devices • STM32 firmware with FreeRTOS, drivers, UART/SPI/I2C/CAN, bootloaders, and hardware bring-up • Nordic nRF52840 / nRF9160 / nRF5340 firmware using Zephyr RTOS, BLE GATT, low-power design, and FOTA • Sensor integration, power optimization, debugging, testing, documentation, and source-code handover • Services include ESP32 / ESP-IDF firmware, STM32 firmware, Nordic nRF52/nRF9160, Zephyr RTOS, FreeRTOS, BLE GATT, Wi-Fi, LTE-M, NB-IoT, LoRa, UART/SPI/I2C/CAN, bootloaders, OTA/FOTA, low-power firmware, sensor integration, and hardware bring-up. EMBEDDED LINUX • Yocto / Buildroot Linux images, BSP customization, device tree, kernel configuration, and system services • Raspberry Pi CM4, i.MX6/i.MX8, Linux gateways, modem/networking, MQTT bridges, and production device setup • Linux driver-level debugging, boot issues, hardware interfaces, camera pipelines, and field reliability improvements • Services include Embedded Linux, Yocto, Buildroot, BSP customization, device tree, kernel configuration, Linux device drivers, Raspberry Pi CM4, i.MX6/i.MX8, system services, modem/networking, MQTT gateways, and production device setup. EDGE AI / CAMERA SYSTEMS • OpenCV, YOLO, OCR/ALPR, RTSP streams, object detection, visual inspection, and safety scoring systems • Embedded Linux camera pipelines, edge inference, model integration, performance optimization, and cloud-connected AI workflows • Services include Edge AI, computer vision, OpenCV, YOLO, RTSP camera streams, OCR/ALPR, visual inspection, object detection, driver safety scoring, crack/pothole detection, embedded inference, Jetson, Raspberry Pi, and Coral TPU. BEST-FIT PROJECTS • ESP32 / STM32 / Nordic nRF firmware • BLE wearable and low-power sensor devices • Zephyr RTOS / FreeRTOS systems • IoT devices with MQTT, AWS IoT, OTA, and telemetry • Embedded Linux gateways and Yocto/Buildroot systems • Camera-based edge-AI and computer vision systems If you need someone who can own the embedded system layer — not just patch code — I can help turn your prototype into a reliable product.

Top 1% Upwork specialist in AI & Embedded Systems. I architect and build solutions using LLMs, CV, and C++/Qt on Nvidia Jetson. My focus is turning your ambitious vision into a reliable, high-performance product. As a Georgia Tech graduate with over 10 years of hands-on experience, including foundational work in the autonomous driving sector of German automotive industry, I partner directly with clients to solve their toughest technological challenges. I am committed to writing clean, efficient, and test-driven code, ensuring your project is built for scalability and long-term success. Here's where my expertise lies: ✅ Intelligent AI, LLM & Agentic Systems Generative AI & LLMs: I architect advanced solutions using the OpenAI API, Gemini, Llama 3, and custom models, specializing in Retrieval-Augmented Generation (RAG) for powerful, context-aware applications. Agentic AI: I build autonomous AI agents that can reason, plan, and execute complex tasks. Full-Stack ML: I manage the entire machine learning lifecycle, from data processing and model training (YOLO, TensorFlow, PyTorch) to robust deployment. ✅ High-Performance Computer Vision (CV) Algorithm Optimization: I have proven experience in optimizing state-of-the-art detection, tracking, and stereo vision algorithms for maximum performance on edge devices. OpenCV, NVIDIA Jetson & DeepStream: My expertise includes deploying real-time vision applications using the complete NVIDIA toolkit, including FFMPEG, GStreamer, TensorRT and DeepStream. ✅ Robust Embedded Systems & Software C++ & Qt Development: I craft high-performance, cross-platform applications with clean C++ and the Qt framework. Embedded Linux & Hardware: I am highly adept at developing for a wide range of platforms, including ROS, Nvidia Jetson, STM32/STM32MP1, Raspberry Pi, and BeagleBone. Protocol Specialist: I have worked on numerous communication protocols like CAN, CANFD, SomeIP, TAPI, Flexray, RSMP, BACnet, OPCUA, MQTT, TCP/IP, UDP/IP, RSTP, ONVIF and many others. When you hire me, you are partnering with a dedicated, top-rated expert who is personally invested in delivering results.

With over 5 years of experience in the industry, I provide comprehensive end-to-end product design & development services ranging from hardware-level device drivers to advanced mobile/web applications, cloud, IoT solutions and . What I Offer: 🔹 End-to-End Product Design & Development • Requirements gathering, system feasibility, architecture design, and implementation • Custom hardware & firmware solutions for IoT, industrial automation, and smart devices • System integration, optimization, and scalability 🔹 Embedded Systems & Firmware Development • Bare-metal C/C++, Driver & Application Development on platforms like STM32, NXP, ESP32, Nordic, and more • Frameworks & RTOS: FreeRTOS, Zephyr, ESP-IDF, Arduino, PlatformIO • Communication Protocols: SPI, I2C, UART, CAN, Modbus, MQTT, LoRaWAN, ZigBee, Bluetooth (BLE & Classic) • Wireless & IoT Technologies: WiFi, LoRaWAN, BLE, Ultra-Wide Band (UWB) (positioning/localization) 🔹 Embedded Linux & Single Board Computers • Linux application & driver development using Yocto, Buildroot, GStreamer, GTK, Qt • SBCs: Raspberry Pi, Beaglebone, Orange Pi, Nvidia Jetson, SiFive 🔹 Hardware Design & PCB Development • Hardware selection & analysis based on project requirements • PCB design using KiCAD 🔹 Consulting & Technical Support • Product feasibility studies, architecture reviews, technical documentation • Free initial 30-minute consultation to understand your project needs Why Choose Me? ✔ 5+ years of experience building robust and scalable embedded systems ✔ Deep expertise in embedded hardware, firmware, and real-time systems ✔ Hands-on experience across IoT, industrial automation, medical devices, and consumer electronics ✔ Focused on reliability, low-power design, and on-time delivery for production-grade solutions Let’s collaborate to turn your ideas into cutting-edge, reliable products. Feel free to reach out for a free initial consultation!

Embedded system engineer with years of shown and hard core experience of working with embedded systems. Refined engineering professional with Master degree in Embedded and Computer engineering. Services: • Bare-metal and RTOS development.. • Network programing. • Schematic design and printed circuit board (PCB) layout. • Linux programming • Altium PCB designing Skills: • Programming Languages: C, C++, Python. • OpenSSl, mbedTLS, wolfssl, micro-ecc • Operating Systems: FreeRTOS, TI-RTOS. • Processors: ARM cortex M4 and M0, STM32, TM4Cxx, EFM32, ESP32, PICxx, Arduino • Hardware Interfaces: I2C, SPI, FAT file system, USB FS/HS, UART, Ethernet, Modbus, RS-232, RS-485, CAN. • Networking: FTP, TCP, UDP, NTP, HTTP, MQTT, • ESP-IDF / Keil uVision / IAR / MPLAB / Stm32cubeIDE / Atollic True-Studio / SVN / GitHub / Visual Studio / Xilinx ISE / JIRA/ JAMA/ PERFORCE IOT devices: • Cellular Devices (mainly u-blox devices) • WiFi Devices (ESP32, TI CC32xx series) • GNSS Devices (u-blox M8)

⚙️ I turn silicon and specs into smart, stable, and scalable embedded solutions. I engineered a 30% improvement in firmware responsiveness across connected devices, helped reduce development time by 25% for a FreeRTOS based ESP32 product line, and built modular driver architectures that made it easier for hardware teams to scale from prototype to production, all while keeping performance rock-solid in the field. As an Embedded Firmware Developer & Embedded Systems Specialist with 7+ years of experience, I design and build fast, reliable, and maintainable embedded software and microcontroller firmware for IoT and industrial products using ESP32 / STM32 / nRF52, FreeRTOS, ESP-IDF, and ARM Cortex-M architectures. 💼 What I Offer: 🔹Production-grade microcontroller firmware using C/C++ for MCUs and SoCs (ESP32, STM32F4, nRF52, ATSAM4, etc.) 🔹FreeRTOS / ESP-IDF-based systems, leveraging multi-threaded architectures for improved efficiency 🔹Advanced sensor & peripheral drivers, integrated into complex hardware ecosystems 🔹Communication stacks built on SPI, I2C, UART, BLE, MQTT, CAN, USB, Ethernet 🔹Smart devices & cloud-connected IoT products using the Espressif ESP-IDF framework 🔹Industrial automation firmware and embedded Linux/AOSP customizations (Yocto, HALs, board bring-up) 🔹Thorough documentation & end-to-end support for internal and external stakeholders 🛠️ What I’ve Been Delivering When most teams reach out to me, they already have hardware in hand, what they don’t have is firmware they can trust in the field. So I come in, analyze what’s running, and turn “demo” firmware into production ready systems. That means: ✔ Optimizing edge-device firmware so it stays stable, responsive, and power-efficient ✔ Customizing AOSP / Embedded Linux platforms for real-world products (HMI panels, smart displays) ✔ Writing and integrating drivers for complex sensors and peripherals ✔ Handling board bring-up, BSP development, bootloaders, and kernel-level debugging ✔ Providing long-term maintenance to keep real-time systems healthy in industrial, consumer, and automotive environments My role is simple: make sure your embedded product behaves perfectly not just on your bench, but in your customer’s hands. 💻Embedded Systems Expertise Languages: C, C++, Python (tooling & scripting) MCUs & SoCs: ESP32, STM32 (F0/F4), nRF52, ATSAM4, ARM Cortex-M OS & Frameworks: FreeRTOS, ESP-IDF, Zephyr, Yocto, Buildroot Connectivity & Protocols: SPI, I2C, UART, CAN, BLE, MQTT, Ethernet, USB Tools: GCC, OpenOCD, JTAG/SWD, Logic Analyzers, Git, Jira If you’re building something that doesn’t fit the usual embedded mold, I’d be glad to hear about it. Some of my best work has come from partnering with teams tackling problems that require a custom-crafted solution. Let’s connect and take your project to the success it deserves.

My name is Atta-ur-Rehman, a Senior Embedded System and PCB Design Specialist. Experience • 14 years of total experience, with a focus on Embedded systems Firmware development and PCB design since 2011. • Extensive work with international clients on diverse industrial products . • Extensive work with Multinational companies as a Remote firmware and PCB designer. Skills • Programming languages: C, C++, Python, Assembly. • Microcontrollers: Arduino, STM32, PIC , AVR , ARM M series, ESP32, ESP8266 • Single Board Computers : Raspberry pi (all models ), Orange pi (all models ) , • Compilers : Keil MDK arm , ESP-IDF , Mplab , MikroC , Eclipse , arduino , STM32 Cube ide . • Communication protocols: USART, SPI, I2C, Ethernet, Wi-Fi , Modbus , CAN , BLE , OBD . • Operating Systems: Embedded Linux, FreeRTOS ,Windows • Design tools: Expert in EDA tools like Altium, Eagle, KiCad, and simulation tools like SPICE or SPICE-like tools. • Cloud platforms: AWS IoT, Google Cloud IoT, Microsoft Azure IoT. • Cybersecurity: Knowledge of security principles and best practices for embedded systems. • Version control: Proficiency with Git, SVN, or other version control systems. Career Highlights • Developed innovative solutions for automotive, Avionics , communication ,power , healthcare, and consumer electronics sectors. • Successfully managed and delivered multiple high-impact projects, exceeding client expectations.