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 C
Embedded System
Raspberry Pi Firmware
Microcontroller Programming
STM32
Embedded Linux
Arduino Firmware
Embedded Application
Electrical Engineering
Hardware Prototyping
PCB Design
Electronics
FreeRTOS
Internet of Things
Industrial Internet of Things
Hamza R.
Islamabad, Pakistan
$20/hr
4.9
37 jobs
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!
ESP32
Arduino
C++
MATLAB
PCB Design
Embedded C
STM32
nRF52
Python
FreeRTOS
Embedded System
Firmware Programming
Microcontroller Programming
Atmel AVR
Internet of Things
Aqib N.
Sialkot, Pakistan
$45/hr
4.9
108 jobs
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.
Embedded System
Embedded C
Firmware
Embedded Linux
ESP32
STM32
PCB Design
FreeRTOS
Zephyr
nRF52
Firmware Programming
Raspberry Pi Firmware
Microcontroller Programming
Embedded Application
Internet of Things
AWS IoT Core
Machine Learning
Computer Vision
Medical Device
Electronic Circuit Design
Aizaz U.
Islamabad, Pakistan
$13/hr
5.0
9 jobs
Delivered 𝟱𝟬+ embedded & IoT systems with 𝟵𝟵% reliability, reduced power consumption up to 𝟲𝟬%, improved wireless range up to 𝟱𝗸𝗺, and achieved production-ready PCB success for industrial, RF, and sensor-based real-world deployments.
➤ 𝗘𝗫𝗣𝗘𝗥𝗧𝗜𝗦𝗘
✔ Embedded hardware design
✔ PCB design (multilayer, RF, power systems)
✔ Firmware development (real-time & low power)
✔ IoT system architecture
✔ Wireless communication systems
➤ 𝗦𝗞𝗜𝗟𝗟𝗦
✔ ESP32, STM32, nRF52, nRF53, Raspberry Pi
✔ C / C++ / Embedded C
✔ FreeRTOS, Zephyr
✔ BLE, WiFi, LoRa, LTE-M
✔ MQTT, AWS IoT, HTTP/HTTPS
✔ Altium Designer, KiCad, EasyEDA
✔ Power electronics & signal integrity
➤ 𝗦𝗘𝗥𝗩𝗜𝗖𝗘𝗦
✔ PCB schematic & layout design
✔ Embedded firmware development
✔ IoT device development
✔ Sensor integration systems
✔ Wireless & cloud connectivity
✔ Prototype to production support
➤ 𝗪𝗢𝗥𝗞𝗜𝗡𝗚 𝗘𝗫𝗣𝗘𝗥𝗜𝗘𝗡𝗖𝗘
✔ 5+ years in embedded systems & IoT product development
✔ Delivered industrial controllers, RF systems, sensor nodes, and wireless IoT devices
✔ Experience in full product lifecycle from design to deployment
➤ 𝗜𝗡𝗗𝗨𝗦𝗧𝗥𝗬 / 𝗗𝗢𝗠𝗔𝗜𝗡
✔ IoT & Smart Devices
✔ Wearables Devices
✔ Industrial Automation
✔ RF & Wireless Systems
✔ Embedded Control Systems
✔ Sensor & Monitoring Systems
➤ 𝗧𝗢𝗢𝗟𝗦
✔ Altium Designer
✔ KiCad
✔ EasyEDA
✔ STM32CubeIDE
✔ ESP-IDF
✔ PlatformIO
✔ If you want a reliable embedded system or IoT product that actually works in real-world conditions, message me and let’s build your solution today.
➤ 𝗞𝗘𝗬𝗪𝗢𝗥𝗗𝗦
Embedded Systems, ESP32, STM32, PCB Design, Firmware Development, IoT, BLE, WiFi, LoRa, LTE-M, MQTT, AWS IoT, C, Embedded C, C++, FreeRTOS, Zephyr, RF Design, Power Electronics, Multilayer PCB, Altium Designer, KiCad, EasyEDA, Sensor Systems, Industrial Automation, Wireless Systems, Low Power Design, Hardware Design, Circuit Design, Design for Manufacturing (DFM), Embedded Firmware, Microcontrollers, Smart Devices, PCB Layout, Signal Integrity, Embedded Linux, OTA Updates, IoT Cloud, Prototype Development, Electronics Design, Product Engineering, Electrical Engineer, Electrical Engineering, Electronics, Hardware, Firmware, PCB, PCB layout, Board Layout, Schematics, Altium Designer, IoT, Internet of Things, Power Electronics, Bluetooth, BLE, TI, Texas Instruments, MCU, RTOS, Microcontroller, prototype, Flex PCB, FPGA, Rockchip, validation, Enclosures, Nordic, BMS, AWS, Python, ESP32, Cellular, IMU, Arduino, PLATFORMIO, PIC, NXP, Texas Instrument, Nordic, DIALOG, STM32, nRF5340, LCD, Wearable Technology, Raspberry Pi, Robotics, RF, XBEE, Wi-Fi, BLE, GPS, Adafruit, Production, Prototyping, LoRa WAN, Manufacturing, Assembly, Motor Driver, Prototype, Wireless Module, JLCPCB, Controllers, PLC, EASY EDA, KiCAD. Wearable device, medical devices, complience, Modbus TCP/IP, HMI, LVGL, Electronics Design, CAN, Eagle
I don't just build prototypes; I engineer market ready IoT hardware and advanced software systems. With 5+ years of experience and over 50 completed projects, my team and I bridge the gap between low level firmware and high level software architectures.
If you have a complex system that is unstable, or you need to deploy an intelligent workflow from scratch, I can handle the full technical execution.
What I bring to the table:
Embedded AI & Firmware: On device intelligence (TinyML) and rock solid C/C++ code for STM32, ESP32, and nRF series running on FreeRTOS/Zephyr.
Python Runtime & Logic Hardening: Designing structured execution frameworks, complex validation flows, and clean GitHub/PR workflows.
Multilayer PCB Design: High speed routing, RF optimization, and DFM ready production layouts in Altium and KiCad.
Cloud & Dashboards: Secure telemetry via MQTT/Cellular (LTE-M) and connecting hardware data into custom WordPress dashboards.
I focus on building predictable, testable systems that don't fail in the field.
Drop me a message with your project spec or code skeleton, and let’s hop on a quick 10 minute call to map out the fix.
Embedded System
Altium Designer
KiCad
PCB Design
Circuit Design
Electronic Circuit Design
Hardware Design
ESP32
STM32
Embedded C
Firmware Programming
FreeRTOS
C++
ARM Cortex-M
Microcontroller
Multilayer PCB
MQTT
Sensor
Dashboard
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