Hire the Best Embedded Applications Freelancers
in Pakistan

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!

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.

✅ 𝐂𝐨𝐦𝐩𝐥𝐞𝐭𝐞𝐝 𝟏𝟎𝟎 + 𝐏𝐫𝐨𝐣𝐞𝐜𝐭𝐬, ✅ 𝐓𝐨𝐩 𝟭𝟬% 𝐄𝐦𝐛𝐞𝐝𝐝𝐞𝐝 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫 𝐨𝐧 𝐔𝐩𝐰𝐨𝐫𝐤, ✅𝟒 + 𝐘𝐞𝐚𝐫𝐬 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞, ✅ 𝗛𝗮𝗻𝗱𝘀-𝗼𝗻 𝗥&𝗗 𝗳𝗼𝗿 𝗦𝗰𝗮𝗹𝗮𝗯𝗹𝗲 𝗮𝗻𝗱 𝗠𝗮𝗿𝗸𝗲𝘁-𝗥𝗲𝗮𝗱𝘆 𝗣𝗿𝗼𝗱𝘂𝗰𝘁𝘀 🔹𝐀𝐛𝐨𝐮𝐭 𝐌𝐞 Are you looking for a skilled Embedded Systems Engineer to bring your product ideas to life or optimize existing hardware? I’m Mussab, a highly experienced embedded systems freelancer with expertise in 𝐟𝐢𝐫𝐦𝐰𝐚𝐫𝐞 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭, 𝐈𝐨𝐓 𝐬𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬, 𝐏𝐂𝐁 𝐝𝐞𝐬𝐢𝐠𝐧, 𝐚𝐧𝐝 𝐀𝐈-𝐩𝐨𝐰𝐞𝐫𝐞𝐝 𝐞𝐦𝐛𝐞𝐝𝐝𝐞𝐝 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬. From prototyping to production, I provide 𝐞𝐧𝐝-𝐭𝐨-𝐞𝐧𝐝 𝐡𝐚𝐫𝐝𝐰𝐚𝐫𝐞 𝐚𝐧𝐝 𝐬𝐨𝐟𝐭𝐰𝐚𝐫𝐞 𝐬𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 for startups, research teams, and companies moving toward commercialization. I’ve worked on a diverse range of projects, including AI-powered fitness devices, medical equipment (dialysis machines), industrial automation, and custom IoT products, ensuring regulatory compliance and high performance. I specialize in designing robust systems that meet IEC and 510K certification standards, making me a valuable asset for projects that require compliance-driven development. 🔹𝐌𝐲 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 🔧 𝐄𝐦𝐛𝐞𝐝𝐝𝐞𝐝 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 & 𝐈𝐨𝐓 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 ✔ 𝐅𝐢𝐫𝐦𝐰𝐚𝐫𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 – STM32 (WL, WB, F, G, H), ESP32 (S3, C3, C6), NRF52840, NRF5340, Renesas ✔ 𝐑𝐓𝐎𝐒 – Zephyr OS, FreeRTOS, SafeRTOS, Azure RTOS, MBED OS ✔ 𝐏𝐂𝐁 𝐃𝐞𝐬𝐢𝐠𝐧 – KiCad, Altium, EasyEDA, Proteus ✔ 𝐄𝐦𝐛𝐞𝐝𝐝𝐞𝐝 𝐋𝐢𝐧𝐮𝐱– Yocto, Buildroot, Rockchip, Jetson Nano, Raspberry Pi,Orange Pi ✔ 𝐖𝐢𝐫𝐞𝐥𝐞𝐬𝐬 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬 – BLE, Zigbee, Wi-Fi, LoRaWAN, Cellular 🧠 𝐀𝐈 & 𝐌𝐚𝐜𝐡𝐢𝐧𝐞 𝐋𝐞𝐚𝐫𝐧𝐢𝐧𝐠 𝐨𝐧 𝐄𝐝𝐠𝐞 𝐃𝐞𝐯𝐢𝐜𝐞𝐬 ✔ Optimizing AI models (TensorFlow Lite, PyTorch) for microcontrollers and GPUs ✔ Implementing real-time computer vision, speech recognition, and predictive analytics 🚗 𝐀𝐮𝐭𝐨𝐦𝐨𝐭𝐢𝐯𝐞 & 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐚𝐥 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 ✔ CAN Bus, RS232, RS485, SPI, I2C, USB (HS, FS) ✔ Motor Control – TMC5160, TMC2209, DVR8825 for stepper/servo motors 📱 𝐌𝐨𝐛𝐢𝐥𝐞 & 𝐖𝐞𝐛 𝐈𝐧𝐭𝐞𝐫𝐟𝐚𝐜𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 ✔ Flutter, Java, Dart for seamless UI/UX experience in IoT applications ✔ ESP32 Web Server Development for real-time control and monitoring 🔹 𝐖𝐡𝐲 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 𝐌𝐞? 🔹 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐄𝐦𝐛𝐞𝐝𝐝𝐞𝐝 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 – From low-level firmware to mobile integration 🔹 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 𝐰𝐢𝐭𝐡 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐲 𝐒𝐭𝐚𝐧𝐝𝐚𝐫𝐝𝐬 & 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 (IEC, 510K, EMI/ESD) 🔹 𝐏𝐫𝐨𝐛𝐥𝐞𝐦 𝐒𝐨𝐥𝐯𝐞𝐫 & 𝐅𝐚𝐬𝐭 𝐃𝐞𝐛𝐮𝐠𝐠𝐞𝐫 – Skilled in remote troubleshooting 🔹 𝐏𝐫𝐨𝐯𝐞𝐧 𝐓𝐫𝐚𝐜𝐤 𝐑𝐞𝐜𝐨𝐫𝐝 – Worked with hardware startups, researchers, and tech companies 🔹 𝐍𝐞𝐞𝐝 𝐚 𝐂𝐨𝐧𝐬𝐮𝐥𝐭𝐚𝐭𝐢𝐨𝐧? Let’s discuss your project’s needs and bridge the gap between your idea and the product you want! 𝐅𝐢𝐧𝐝 𝐦𝐞 𝐢𝐧 𝐭𝐡𝐞𝐬𝐞 𝐤𝐞𝐲𝐰𝐨𝐫𝐝𝐬: Embedded Systems Design, Product Development, Android App Development, ESP32 S3, ESP32 C3, ESP32 C6, STM32 WB55RG, STM32 WL, STM32 L432KC, STM32 F401/407, STM32 H7, STM32 G431, STM32 OTA (BLE, ZIGBEE), TOF Sensors, Embedded Linux, BuildRoot, Yocto, FPGAs, Altera ,Xilinix, Vivado, ESP IDF, TMC 5160, TMC 2209, Stepper Motors, Servo Motors, Flutter App Development, Java ,Dart, C++,C, C#, Python, Bash Scripting, ESD Protection, EMI ,IEC Certifications, ADS 122 U04,ADS 122 C04 ,HX 711,NAU 7803,ESP IDF,MAX 9814,SPH0645,BLE ,IOT, Zigbee, RTOS, FreeRTOS, SafeRTOS, DFU ,Zephyr OS, NRF 52840 ,NRF 5340.Zephyr RTOS, ARM Controllers, BLUE NRG, PCB Design, Lorawan ,Gateways, SX1278, SX 1276, NRF SDK Profile Updated on 5 February 2025

I am an Engineer specializing in Embedded Systems Design, Firmware Development and IoT product development. I work from concept to final prototype, covering circuit design, firmware programming, hardware integration, testing and performance optimization. I have practical experience working with STM32, ESP32, Raspberry Pi and custom boards. My focus is always on building systems that are reliable, efficient and ready for real-world use. What I Do • Firmware development in C, C++ and Python for real-time and low-power embedded applications • Microcontroller programming for STM32 (HAL and LL), ESP32 (ESP-IDF and Arduino), AVR and Raspberry Pi • IoT and wireless communication setup using Wi-Fi, BLE, LoRa, Z-Wave and cloud APIs such as MQTT and REST • Debugging using logic analyzers, oscilloscopes and JTAG/SWD to solve hardware and firmware issues • Reverse engineering and performance optimization for improving stability and reducing power consumption • Prototype development, board bring-up and functional validation before scaling to production Technical Skillset MCUs: STM32, ESP32/ESP-IDF, AVR, RP2040, Raspberry Pi Languages: C, C++, Embedded C, Python Protocols: I2C, SPI, UART, CAN, Modbus, RS485 Wireless: Wi-Fi, BLE, LoRa (SX126x and LLCC68), Z-Wave Tools: PlatformIO, STM32CubeIDE, ESP-IDF, KiCad, Logic Analyzer, JTAG/SWD Debug Why Work With Me I build embedded products that work, not just code that compiles.

⚙️ 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.

Are you looking for a reliable expert to take your electronics from a rough prototype to a scalable, production-ready product? I am a Senior Embedded Systems Engineer specializing in full-stack PCB design and custom firmware development to bridge the gap between complex hardware and intelligent software. From architecting high-performance STM32 dual-core systems to deploying AI-driven computer vision on the edge, I deliver robust, scalable solutions for IoT, robotics, and consumer electronics. Whether you are building an industrial autonomous robot, developing custom motor controllers, or engineering a battery-optimized ESP32 sensor, I provide end-to-end support from schematic design to final firmware optimization. Core Competencies & Services: Firmware Development & MCUs: Expert-level C/C++ programming for STM32 (H7, F4, L4), ESP32, Arduino, Infineon XMC, and Atmel AVR. Proficient in bare-metal coding, FreeRTOS, Low-Level Drivers, and Over-The-Air (OTA) bootloaders. Custom PCB Design & Prototyping: High-speed, multi-layer board layouts with strict attention to signal integrity, power electronics, and Design for Manufacturing (DFM) using Altium Designer and KiCad. Motor Controllers & Autonomy: Advanced firmware integration for servo, stepper, and BLDC motor controllers, alongside ROS/ROS2, SLAM, and sensor fusion for autonomous vehicles and manipulators. IoT & Wireless Connectivity: Implementation of BLE, Wi-Fi, LoRa, and custom cloud integrations for low-power IoT devices. Computer Vision & AI: Real-time object detection (YOLO, OpenCV) integrated directly into embedded Linux or high-end MCU environments. Proven Impact & Notable Projects: Automotive Safety: Developed a Helmet Airbag Safety PCB with millisecond-latency accident detection and deployment firmware. Industrial Surveillance: Engineered a centralized Surveillance Van Integration hub, syncing drone docks, payload cameras, and power management. Low-Power IoT: Designed an E-Paper Bible Clock featuring an ESP32 MCU, QR-code Wi-Fi provisioning, and 6+ months of battery life. Defense Prototypes: Developed a Remote Weapon Station with 360° precision motor controllers and integrated safety interlocks. Tech Stack & Tools: Languages: C, Embedded C, C++, Python, MATLAB Frameworks: FreeRTOS, TouchGFX, ROS/ROS2, Gazebo, MoveIt Protocols: UART, SPI, I2C, CAN, Ethernet, Modbus Hardware Design: Altium Designer, KiCad, Raspberry Pi, Jetson Nano Why Work With Me? Code Quality: I write clean, documented, and maintainable firmware following industry standards. Full-Stack Hardware: I don't just write code; I understand the physical analog electronics, signal integrity, and manufacturing constraints of your circuit. Transparency: Regular updates, clear milestones, and proactive problem-solving to ensure a smooth transition from your initial prototype to mass production. Ready to bring your hardware vision to life? Click the "Invite to Job" or "Hire" button, and let's discuss how I can add value to your project!