Hire the Best Firmware Engineers
in Pakistan

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.

Embedded Systems & Firmware Engineer specializing in ESP32, STM32, nRF52, FreeRTOS, and Embedded Linux. I develop reliable embedded software for IoT devices, wireless products, sensor systems, and custom hardware from prototype bring-up and peripheral drivers to debugging, optimization, and production-ready firmware. My core experience includes: • MCUs & Platforms: ESP32/ESP32-S3, STM32, Nordic nRF52/nRF52840, Arduino, Raspberry Pi 4/5 • Firmware: Embedded C/C++, Bare-Metal, FreeRTOS, BSP/HAL, peripheral & device driver development • Embedded Linux: Raspberry Pi, Linux-based device applications, hardware interfacing, Python/C++ • Wireless & IoT: BLE, Wi-Fi, LoRa/LoRaWAN, MQTT • Interfaces & Protocols: I2C, SPI, UART/USART, RS485, CAN, Modbus • Sensors & Signal Processing: IMU, radar, LiDAR, ADCs, real-time sensor processing • Development Tools: ESP-IDF, STM32CubeIDE, Arduino IDE, PlatformIO, nRF Connect SDK What I can help with 1. Custom firmware development and architecture 2. MCU bring-up and peripheral integration 3. ESP32, STM32 and nRF52 firmware development 4. FreeRTOS and real-time application development 5. BLE, Wi-Fi, LoRa and MQTT connectivity 6. Embedded Linux development on Raspberry Pi 7. BSP/HAL and low-level driver development 8. Debugging and improving existing firmware/codebases 9. Sensor integration and real-time data processing 10. Low-power and performance optimization I focus on clean, maintainable and deterministic firmware with attention to processing overhead, memory usage, power consumption, reliability, and real-time performance. If you have a custom board, prototype, sensor, wireless device, or existing firmware that needs to be developed or debugged, send me the requirements and I'll help you determine the right approach.

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.

Proven Embedded Systems Engineer with 4+ years in IoT and firmware development. Expert in ESP32, STM32, nRF, FreeRTOS, Zephyr. I am an enthusiastic and detail-oriented Embedded Systems & IoT Developer with hands-on experience in building low-power, real-time, and connected embedded products. I specialize in ESP32, STM32, nRF9160/nRF52, and have worked extensively with FreeRTOS, Zephyr RTOS, ESP-IDF, and embedded C/C++. My work includes designing and optimizing firmware for 𝗜𝗼𝗧 𝗱𝗲𝘃𝗶𝗰𝗲𝘀, 𝘀𝗲𝗻𝘀𝗼𝗿-𝗯𝗮𝘀𝗲𝗱 𝘀𝘆𝘀𝘁𝗲𝗺𝘀, 𝗟𝗧𝗘/𝗚𝗡𝗦𝗦 𝘁𝗿𝗮𝗰𝗸𝗲𝗿𝘀, 𝗕𝗟𝗘 𝘀𝗰𝗮𝗻𝗻𝗲𝗿𝘀, 𝘄𝗶𝗿𝗲𝗹𝗲𝘀𝘀 𝗰𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗶𝗼𝗻 𝗺𝗼𝗱𝘂𝗹𝗲𝘀, and 𝗶𝗻𝘁𝗲𝗿𝗿𝘂𝗽𝘁-𝗱𝗿𝗶𝘃𝗲𝗻 𝗿𝗲𝗮𝗹-𝘁𝗶𝗺𝗲 𝗮𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀. I have developed full embedded solutions involving 𝗽𝗲𝗿𝗶𝗽𝗵𝗲𝗿𝗮𝗹 𝗶𝗻𝘁𝗲𝗿𝗳𝗮𝗰𝗶𝗻𝗴, 𝗨𝗟𝗣 𝗮𝗻𝗱 𝗱𝗲𝗲𝗽-𝘀𝗹𝗲𝗲𝗽 𝗽𝗼𝘄𝗲𝗿 𝗼𝗽𝘁𝗶𝗺𝗶𝘇𝗮𝘁𝗶𝗼𝗻, 𝗠𝗤𝗧𝗧/𝗛𝗧𝗧𝗣 𝗰𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗶𝗼𝗻, 𝗰𝗹𝗼𝘂𝗱-𝗰𝗼𝗻𝗻𝗲𝗰𝘁𝗲𝗱 𝗱𝗲𝘃𝗶𝗰𝗲𝘀, and custom protocol handling. 𝐖𝐡𝐚𝐭 𝐲𝐨𝐮 𝐜𝐚𝐧 𝐞𝐱𝐩𝐞𝐜𝐭 𝐟𝐫𝐨𝐦 𝐦𝐞: ✔ Clean, optimized, and well-structured firmware ✔ RTOS-based application development (tasks, queues, timers, interrupts) ✔ Professional communication and timely delivery ✔ IoT connectivity development ---------------------------------------------------------- 𝐌𝐲 𝐂𝐨𝐫𝐞 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 ---------------------------------------------------------- • Microcontrollers: 𝐄𝐒𝐏𝟑𝟐, 𝐒𝐓𝐌𝟑𝟐 (𝐒𝐓𝐌𝟑𝟐𝐋𝟒/𝐒𝐓𝐌𝟑𝟐𝐅𝟒), 𝐧𝐑𝐅𝟗𝟏𝟔𝟎, 𝐧𝐑𝐅𝟓𝟐 • Protocols: 𝐌𝐐𝐓𝐓, 𝐁𝐋𝐄, 𝐖𝐢-𝐅𝐢, 𝐋𝐓𝐄-𝐌/𝐍𝐁-𝐈𝐨𝐓, 𝐇𝐓𝐓𝐏, 𝐆𝐍𝐒𝐒, 𝐄𝐭𝐡𝐞𝐫𝐧𝐞𝐭 • Tools/SDKs: 𝐄𝐒𝐏-𝐈𝐃𝐅, 𝐒𝐓𝐌𝟑𝟐𝐂𝐮𝐛𝐞𝐈𝐃𝐄, 𝐙𝐞𝐩𝐡𝐲𝐫 𝐑𝐓𝐎𝐒, 𝐅𝐫𝐞𝐞𝐑𝐓𝐎𝐒, 𝐀𝐫𝐝𝐮𝐢𝐧𝐨 𝐈𝐃𝐄 • Build Systems: 𝐂𝐌𝐚𝐤𝐞, 𝐌𝐚𝐤𝐞𝐟𝐢𝐥𝐞 • Peripherals: 𝐔𝐀𝐑𝐓, 𝐒𝐏𝐈, 𝐈𝟐𝐂, 𝐂𝐀𝐍, 𝐑𝐒𝟐𝟑𝟐 • Languages: 𝐂, 𝐂++, 𝐄𝐦𝐛𝐞𝐝𝐝𝐞𝐝 𝐂, 𝐂#, 𝐏𝐲𝐭𝐡𝐨𝐧 If you're looking for a dependable Embedded Firmware Engineer who can turn your hardware into a robust, efficient, and production-ready embedded product — I’m here to help. Let’s work together and turn your ideas into Reality!

I design and develop production-ready embedded systems, firmware, electronics hardware, PCB designs, IoT devices, and connected smart products, with a strong focus on reliability, performance, scalability, and long-term maintainability. My work covers the complete product development lifecycle, from system architecture and hardware design to firmware development, PCB design, prototyping, hardware bring-up, debugging, optimization, and production deployment. My core expertise includes embedded firmware development, embedded systems, PCB design, electronics hardware development, IoT development, BLE, WiFi, and smart product development. I work with startups, hardware teams, and product companies to turn concepts and prototypes into reliable, manufacturable products. For embedded firmware development, I primarily work with C and C++ on ARM Cortex-M, ESP32, and Nordic nRF52 platforms. I develop both bare-metal and RTOS-based firmware, with strong experience in FreeRTOS for multitasking, deterministic system behavior, interrupt handling, task scheduling, synchronization, memory management, and real-time embedded applications. I have extensive experience with embedded communication protocols and hardware interfaces including SPI, I2C, UART, CAN, BLE, and WiFi. This includes developing custom drivers and firmware interfaces for sensors, displays, communication modules, motors, power-management ICs, storage devices, and other external hardware. On the hardware side, I design complete electronics systems and PCBs for embedded and IoT products. This includes schematic design, component selection, MCU and wireless integration, sensor interfaces, communication interfaces, battery-powered systems, power management, protection circuits, connector design, PCB layout, signal integrity, power integrity, and design-for-manufacturing considerations. I also handle hardware bring-up, board validation, firmware-hardware integration, and system-level debugging. Working across both hardware and firmware makes it possible to identify integration issues efficiently and ensure that the PCB, embedded software, peripherals, power system, wireless connectivity, and mechanical product work together as a complete system. For IoT development, I build secure and reliable connectivity between embedded devices and cloud platforms using MQTT, REST APIs, WiFi, BLE, and other connected-device technologies. This includes telemetry, device communication, remote monitoring, OTA firmware updates, device configuration, and low-power optimization using sleep modes, deep sleep, and duty cycling for battery-powered IoT devices. I also develop BLE and low-power wireless products using platforms such as Nordic nRF52 and ESP32, including connected sensors, trackers, wearables, smart devices, and battery-operated IoT products. Beyond conventional embedded development, I have experience with embedded AI and edge computing, including deploying TinyML and machine-learning models on resource-constrained microcontrollers. My work also extends into complete smart product development, combining embedded firmware, electronics hardware, PCB design, wireless connectivity, sensors, power management, and product-level engineering into a single development workflow. This allows me to support products from initial concept and proof of concept through prototyping, engineering validation, optimization, and production. The goal is not simply to make a prototype work, but to develop reliable embedded hardware, firmware, PCB designs, and connected products that can be tested, maintained, manufactured, and evolved as the product grows.

I help startups, product teams, and engineering companies turn embedded product ideas into working hardware, firmware, connected IoT systems, AI-enabled devices, and mobile/cloud platforms. I lead MHTechFusion, an embedded systems and IoT engineering team with hands-on experience in PCB design, firmware development, BLE, hardware bring-up, prototyping, wireless connectivity, AI/computer vision integration, LLM/RAG applications, mobile app integration, and end-to-end product development. We support clients from early concept and feasibility stage to schematic design, PCB layout, firmware development, testing, manufacturing files, and prototype validation. Core areas I can support: -Embedded Hardware & PCB Design: ESP32, STM32, nRF52, Raspberry Pi, sensor boards, wearable electronics, power circuits, communication interfaces, multilayer PCB design, Gerbers, BOM, Pick and Place files, and DFM support. -Firmware Development: C/C++, FreeRTOS, Zephyr, BLE, Wi-Fi, LoRa, CAN, OBD-II, UART, SPI, I2C, ADC, bootloaders, OTA updates, low-power firmware, and hardware bring-up. -IoT & Connected Products: Cloud dashboards, mobile app integration, device communication, MQTT, REST APIs, data logging, alerts, and remote monitoring systems. -AI, Computer Vision & LLM/RAG: Computer vision pipelines, AI-assisted inspection, object detection, OCR/ANPR-style systems, edge AI integration, LLM-based assistants, RAG systems, document intelligence, approval workflows, and AI-enabled dashboards. -Mobile & Web Applications: iOS and Android companion apps, Flutter/mobile app integration, device configuration apps, BLE/Wi-Fi device pairing, dashboards, admin panels, backend APIs, and cloud-connected product interfaces. -Testing & Prototyping: Prototype assembly coordination, lab testing, debugging, firmware flashing, signal validation, and product iteration. Recent project experience includes wearable electronics, smartwatch PCB and firmware, automotive CAN/OBD-II tools, LoRaWAN monitoring systems, industrial control boards, ESP32/STM32 firmware, custom PCBs, AI/computer vision systems, LLM/RAG platforms, iOS/Android apps, and cloud-connected IoT products. My working style is practical and milestone-based. I first understand the technical requirements, identify risks early, and then break the project into clear phases so the client knows exactly what will be delivered at each step. If you need reliable support for embedded systems, hardware, firmware, BLE, IoT, AI-enabled products, mobile apps, or cloud-connected product development, I would be happy to discuss your project.