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An experienced Embedded Systems Engineer with strong expertise in both Embedded Hardware and Software Development. With over 5 years of experience in the industry, I provide comprehensive development services ranging from hardware-level device drivers to advanced mobile/web applications, cloud, IoT solutions and end-to-end product design & development. 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) 🔹 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? ✔ 3+ 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!

⚙️ 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.

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.

ESP32 | STM32 | nRF52 | i.MX6/8 | ZephyrOS | FreeRTOS | Embedded Linux 10+ years delivering production firmware & IoT hardware. Have deeps hands on experience with embedded systems, embedded C/C++, Embedded Firmware and embedded software engineering. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ WHO I AM ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Embedded Systems & Firmware Engineer who has led hardware development at Mentor Graphics, Siemens, and u-blox — from schematic design to mass production deployment. I work across the full product lifecycle: hardware bring-up, firmware, cloud connectivity, and edge AI. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ EMBEDDED SYSTEMS & FIRMWARE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ MicroControllers : ESP32, nRF52, STM32F4/L, ATSAMD, EFR32, PSoC3, CC2540/64, MSP430 Processors : i.MX 6, i.MX 8, Raspberry Pi, BeagleBone RTOS : ZephyrOS, FreeRTOS, MbedOS, QNX, TI-RTOS, Embedded Linux, Debian Connectivity : WiFi, BLE 5.0, LTE CAT-M1, NB-IoT, LoRa SX1278, 2G/3G/5G, RF FPGA : Spartan, Zynq Series PCB Design : Altium Designer, KiCAD, EasyEDA, Proteus, Eagle ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ MACHINE LEARNING & EDGE AI ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Frameworks : TensorFlow, PyTorch, Keras Computer Vision : OpenCV, YOLO, Mask R-CNN, CUDA, OpenCL NLP / LLMs : LangChain, GPT-4, HuggingFace Transformers, SpaCy, NLTK Chatbots : Rasa, Dialogflow, Botpress Edge Hardware : Nvidia Jetson, Raspberry Pi, Coral TPU ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ WHY CLIENTS CHOOSE ME ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ★ 100% Job Success Score — every single project delivered ★ Top Rated Plus — verified top 3% of all freelancers on Upwork ★ 19,000+ hours — long-term reliability clients depend on ★ Full product lifecycle — hardware design → firmware → cloud dashboard ★ Agency-backed — Silicon Nexus (40+ engineers) scales with your project ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ KEYWORDS (for search visibility) ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ embedded systems | embedded engineer | embedded software developer | embedded firmware | embedded hardware | embedded linux developer | embedded C developer | embedded C++ developer | embedded IoT | firmware developer | esp32 firmware developer | stm32 developer | nrf52 developer | zephyros developer | freertos developer | iot engineer | iot firmware developer | iot saas developer | pcb design engineer | altium designer | kicad pcb designer | microcontroller programmer | rtos developer | device driver developer | arduino firmware developer | embedded bootloader | yocto developer | machine learning engineer | computer vision engineer | edge ai developer | nvidia jetson developer | tensorflow developer | pytorch developer | openai developer | chatgpt developer | langchain developer | llm developer | nlp engineer | chatbot developer | rasa developer | dialogflow developer | computer vision opencv | yolo developer | huggingface developer | generative ai developer | ai automation engineer Building an IoT product, industrial device, or AI-powered hardware system? Let's connect.

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.

Embedded Firmware Developer | ESP32 | STM32 | Raspberry pi | BLE | nRF52 | Wifi | FreeRTOS I design and develop reliable embedded firmware for microcontroller-based systems, focusing on real-time performance, low power optimization, and robust communication. I specialize in working with ESP32, STM32, and nRF52 platforms, building firmware that interfaces seamlessly with sensors, peripherals, and wireless modules. Core Expertise Embedded Firmware Development: C/C++, Embedded C Microcontrollers: ESP32, STM32, nRF52840 RTOS: FreeRTOS (task scheduling, synchronization, optimization) Communication Protocols: BLE, UART, SPI, I2C, CAN, RS485 Wireless Systems: BLE, Wi-Fi, LoRa, NRF24L01 Driver Development: Low-level peripheral drivers & hardware interfacing Real-Time Systems: Deterministic behavior, interrupt handling Low Power Design: Sleep modes, power profiling, optimization What I Deliver Clean, modular, and scalable firmware Stable communication between devices and sensors Efficient debugging and hardware-level issue resolution Production-ready embedded solutions I have hands-on experience building systems involving sensor integration, wireless communication, and real-time data handling, ensuring performance and reliability in practical applications. If you need a developer who understands both hardware and firmware deeply, I can help bring your embedded system to life.