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Top Rated Freelancer | 95% Job Success | 6+ Years of Experience | 50+ Projects Delivered I help startups, product companies, and businesses transform innovative ideas into reliable, production-ready embedded products. From custom PCB design and embedded firmware to AI-powered devices and IoT solutions, I provide end to end engineering support throughout the complete product development lifecycle. Whether you're building an MVP, improving an existing product, or preparing for manufacturing, my focus is on delivering practical, scalable, and high quality engineering solutions. Over the past 6+ years, I've successfully delivered 50+ projects for clients across industrial automation, medical electronics, automotive systems, IoT, AI powered embedded devices, and secure software applications. My approach combines hardware, firmware, AI, and system architecture to build complete solutions, not just individual components. Core Expertise: Embedded Systems Embedded Firmware Development ESP32, STM32, nRF52, AVR & PIC Raspberry Pi Development Hardware Bring-up, Debugging & Testing PCB Design Custom PCB Design Schematic Capture PCB Layout Altium Designer KiCad Manufacturing-Ready PCB Design AI & Computer Vision Edge AI Integration OpenCV YOLO TensorFlow Lite AI-Powered Embedded Applications IoT & Connectivity Wi-Fi BLE LoRa LTE MQTT Sensor Integration Advanced Engineering System Architecture Runtime Validation Secure Software Design Application Integrity Product Optimization Technologies Programming: C, C++, Python Microcontrollers: ESP32, STM32, nRF52, AVR, PIC, Raspberry Pi PCB Design: Altium Designer, KiCad Communication: UART, SPI, I²C, CAN, BLE, Wi-Fi, LoRa, LTE, MQTT AI & Computer Vision: OpenCV, YOLO, TensorFlow Lite What You Can Expect: Endto end product development, from concept to production Reliable, manufacturing ready PCB designs Clean, scalable, and maintainable firmware Strong analytical thinking and practical problem solving Clear communication and transparent project updates Long term engineering support For projects requiring backend development, cloud integration, DevOps, mobile applications, or web dashboards, I collaborate with experienced specialists to deliver complete end to end solutions while remaining your primary engineering point of contact. I believe successful products are built through thoughtful engineering, attention to detail, and close collaboration with clients. My goal is not just to complete a project, but to deliver a solution that is reliable, manufacturable, and built to perform in real world environments. If you're looking for an engineer who can design hardware, develop firmware, integrate AI, and build complete embedded products, I'd be happy to discuss your project and help bring your idea to life.

Your hardware is only the beginning. The real challenge is making it work reliably in the real world. If you have a hardware prototype that needs firmware, a device that needs debugging, or an existing product that isn’t behaving as expected, I can help turn it into a stable, functional system. I develop embedded firmware that makes hardware sense, communicate, process data, and respond exactly as your product requires. ​I specialize in Embedded Firmware Development, Embedded Systems, Microcontroller Programming, Embedded C/C++, FreeRTOS, and low-level Driver Development. I work directly with ESP32, STM32, Raspberry pi and Nordic nRF52 microcontrollers. My whole approach is pretty simple: keep it clean, keep it low-power, and make sure it runs deterministic and rock-solid when it actually counts. No drama, no crashing, just cold, reliable performance built for production. ​Whether you're starting a new device from scratch, setting up a wireless IoT setup, running an industrial monitoring rig, or just need me to clean up someone else's broken, buggy code—I’ll deliver modular, efficient solutions tailored straight to your hardware. I help with the following: Embedded Firmware & Embedded Systems • Firmware Development • Embedded Systems Development • Microcontroller Programming • Embedded C & C++ • Bare-Metal Firmware • FreeRTOS Development • Driver Development • BSP & HAL Development • Interrupt Service Routines (ISR) • Peripheral Driver Development Microcontrollers & Platforms • ESP32 • STM32 • Nordic nRF52 (nRF52840, nRF52832) • Raspberry Pi • Arduino Wireless & Internet of Things (IoT) • Bluetooth Low Energy (BLE) • Wi-Fi • LoRaWAN • Internet of Things (IoT) • Wireless Sensor Devices • Low-Power Embedded Systems Hardware Interfaces & Communication • UART • SPI • I2C • CAN Bus • RS485 • Modbus Advanced Embedded Development • Sensor Fusion • Radar Signal Processing • Embedded Linux • Python for Testing & Automation • Firmware Debugging • Logic Analyzer & Protocol Analysis • Power Optimization What You Receive • Production-ready Embedded Firmware • Clean, modular, and well-documented Embedded C/C++ code • Reliable FreeRTOS-based applications • Efficient low-level Driver Development • Hardware abstraction and peripheral integration • Deterministic real-time performance • Low-power firmware optimization • End-to-end firmware debugging and protocol troubleshooting • Scalable firmware designed for long-term maintenance and future expansion Bring your hardware to life with reliable, production-ready firmware. Whether you’re developing a new board or troubleshooting an existing design, I can help with production ready firmware development. Send me your requirements, and let’s build it and let's get to work.

I help startups, inventors, and businesses turn ideas into working embedded products, from concept and electronics design to PCB development, firmware, prototyping, and testing. I specialize in complete embedded product development, allowing clients to work with a single engineer instead of coordinating separate PCB designers, firmware developers, and hardware prototyping specialists. My expertise includes: • Embedded systems and firmware development (C/C++) • PCB design and layout (Altium Designer) • ESP32, ESP32-S3, STM32, Arduino, and PIC microcontrollers • Raspberry Pi 4, Raspberry Pi 5, Pico, and Pico W development • Sensor, motor, servo, and actuator integration • Hardware debugging, testing, and bring-up • IoT and connected device development • CAD support for enclosures and mechanical components Platforms & Technologies: • ESP32 / ESP32-S3 • STM32 • Raspberry Pi 4 / 5 • Raspberry Pi Pico / Pico W • Arduino • PIC Microcontrollers Protocols & Interfaces: • I2C • SPI • UART • CAN • I2S • USB OTG • USB-PD Recent projects include agricultural monitoring systems, robotics platforms, custom embedded electronics, and prototype product development. My focus is on practical engineering, clear communication, and delivering reliable prototypes that help clients move from concept to a working product faster.

I design and deliver production-ready embedded hardware—not just schematics and code, but solutions that are tested, optimized, and built to scale. With 7+ years of hands-on experience, I work at the intersection of hardware, firmware, and manufacturing, helping startups and product teams move from concept to stable, field-ready electronics. My work spans ESP32 (S2 / S3 / C3), nRF52, STM32, and Raspberry Pi–based systems, including custom carrier boards and IoT products designed for real-world deployment. My strength lies in engineering judgment—choosing the right architecture, components, and firmware approach to ensure reliability, cost efficiency, and long-term support. 🔧 PCB & Hardware Engineering 1-Production-grade schematic and multi-layer PCB design (2–6 layers) 2-Specialy BGA (footprint ICs), RF, and high-speed routing best practices 3-Power & Analog: DC-DC (Flyback, Boost, Buck, LDOs), battery-powered systems 3-Digital Circuit Design 4-Interface Buses (SPI, I2C, RS-232, RS-485, ...) 5-High Speed I/O Interfaces (USB, Ethernet, PCI Express, LVDS, ...) 6-BOM creation and cost optimization 7-PCBway,JLCPCB-ready BOM & PCBA support 8-Prototype bring-up, validation & debugging 9-DFM / DFA focused layouts for smooth manufacturing 10-Small-batch to volume production support 💻 Embedded Firmware Development (Senior Level) 1-Embedded C / C++ for real-time, low-power, and performance-critical systems 2-Python for automation, testing, tooling, and higher-level system control 3-Bare-metal and RTOS-based firmware architecture 4-Custom driver development and hardware abstraction layers 5-Communication protocols: SPI, I2C, UART, RS232, RS485, CAN, Modbus 6-Wireless & IoT systems: Wi-Fi, BLE, MQTT, cloud integration 7-Firmware debugging, optimization, and long-term maintainability 🧠 Platforms & Technologies 1-ESP32 family (S2 / S3 / C3), ESP8266 2-Nordic nRF52 series (BLE, low-power designs) 3-STM32 (Nucleo & custom boards) 4-RP2040 / Raspberry Pi Pico 5-Raspberry Pi & custom carrier boards 6-Arduino ecosystem (when rapid development is required) 🛠 Tools & Design Environment Altium Designer KiCad EasyEDA Eagle CAD + Fusion 360 🚀 Why Clients Work With Me ✔ Strong product-level thinking, not just task execution ✔ Designs focused on reliability, cost, and scalability ✔ Clear communication and structured development process ✔ Support beyond delivery, including production guidance If you need an engineer who can own both hardware and firmware, solve complex problems, and prepare your product for manufacturing, I’d be happy to discuss your project.

I’m an Embedded Systems & IoT Engineer with 4+ years of experience in electronics design, PCB design and development, and microcontroller programming. I help clients transform ideas into reliable, production-ready hardware solutions — from concept to working prototype. 🔧 What I Offer 🔹 PCB Design & Prototyping (KiCad, Altium, EasyEDA – optimized for JLCPCB/PCBWay) 🔹 Microcontroller Programming (ESP32, Arduino, STM32, Atmega) 🔹 SBC & Linux Systems Integration (Raspberry Pi, Radxa) 🔹 Firmware Development (C/C++, ESP-IDF, Arduino IDE, Linux setup, Python) 🔹 IoT & Wireless Systems (Wi-Fi, Bluetooth, BLE, LoRa) 🔹 Sensor Integration & Control Systems (motion, audio, automation, robotics) 🔹 Analog & Digital Circuit Design (simulation & testing with Proteus, LTSpice, Multisim) 💡 Why Clients Choose Me ✅ Top Rated Seller on Upwork ✅ Combine Hardware + Firmware expertise — no need for multiple freelancers ✅ Reliable, Scalable, and Production-ready designs ✅ Full deliverables: Code, PCB files, BOM, Documentation ✅ Clear communication and fast turnaround 🏆 Proven Work • Motion Tracking Device: Built with ESP32-C3 + motion sensor, real-time speed calculations, Wi-Fi data streaming. • Industrial Systems: OBD2 interfaces & control logic development • SBC Projects: Raspberry Pi & Radxa hardware/software integration (Custom PCBs and Firmware design) • IoT Home Automation System: ESP32/Arduino-based system with wireless sensor integration for smart control. • Robotic Arm Controller: Arduino-powered automation with custom PCB for motor drivers and sensors. Whether you need a custom IoT device, compact PCB layout, or a complete embedded prototype, I deliver results that are reliable, scalable, and optimized for your needs.

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!