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.
Embedded C
Firmware
PCB Design
Internet of Things
Bluetooth LE
ESP32
STM32
Raspberry Pi
nRF51
MSP430
FreeRTOS
Zephyr
Altium Designer
KiCad
Wearable Technology
CAD
Product Design
Circuit Design
Machine Learning
Computer Vision
Shahab N.
Bahawalpur, Pakistan
$10/hr
5.0
11 jobs
Hi! I am Dr. Shahb Niazi, a PhD-qualified Electrical Engineer with over 24 years of experience specializing in embedded systems, PCB design, hardware design, and advanced R&D. As a Senior Consultant and Project Leader at CARE (Center Of Advanced Robotics and Embedded system), I lead a highly skilled team of engineers and researchers, driving innovation across a diverse range of industries.
Our core expertise lies in embedded systems development, advanced PCB design, and industrial automation. From real-time firmware for microcontrollers to high-speed, multi-layer PCB layouts, we deliver hardware-software solutions optimized for precision, performance, and reliability. With deep experience in automation protocols, sensor integration, and control systems, we build intelligent, production-ready electronics tailored for industrial, commercial, and custom applications.
we provide optimized embedded and IoT solutions engineered for high performance, low power, and full compliance with industry standards.
Our designs ensure reliable integration, EMI/EMC robustness, and scalable architectures for real-world industrial needs.
By reducing time-to-market and enhancing system efficiency, we can help clients stay competitive in demanding tech environments.
Electrical Engineering
Industrial Automation
Embedded C
Embedded Operating System
Firmware Programming
Altium Designer
Multilayer PCB
KiCad
EasyEDA
PCB Design
Layout Design
Schema Diagram
ESP32
STM32
Arduino Firmware
Muhammad A.
Faisalabad, Pakistan
$20/hr
4.9
45 jobs
I help startups, businesses, and innovators build IoT and embedded systems using Raspberry Pi, ESP32, and custom electronics.
With 10+ years of engineering experience, I turn ideas into reliable prototypes and production-ready solutions from hardware and firmware development to automation and deployment.
My expertise includes:
✓ Raspberry Pi Development
✓ ESP32 Firmware & IoT Solutions
✓ PCB Design & Prototyping
✓ Sensor Integration & Automation
✓ Embedded Linux & Remote Systems
✓ Industrial Monitoring & Control
What I Can Do for You:
🔹 Embedded & IoT Development
Design and develop smart connected devices, automation systems, and embedded solutions using Raspberry Pi, ESP32, Arduino, and industry-standard communication protocols.
Examples:
• IoT monitoring and control systems
• Remote device management
• Sensor-based embedded products
• Edge computing applications
🔹 PCB Design & Hardware Development
Create complete hardware solutions including schematic design, PCB layout, component selection, and manufacturing-ready files.
Deliverables:
• Schematics
• PCB Layout
• Gerber Files
• BOM Preparation
• Prototype Support
🔹 Automation & Control Systems
Develop reliable automation solutions with sensor integration, machine control, data acquisition, and industrial communication.
Examples:
• Process automation
• Industrial monitoring systems
• PLC and controller integration
🔹 Electrical & Embedded Engineering
Support product development through circuit design, embedded integration, troubleshooting, and technical documentation.
Why Clients Work With Me:
✔ Strong engineering and problem-solving approach
✔ Clear communication and transparent updates
✔ Reliable and scalable solutions
✔ Focus on quality and long-term maintainability
✔ End-to-end support from concept to deployment
Whether you're building an IoT product, developing a custom embedded system, creating a new PCB, or automating an existing process I’m here to help turn your concept into a working solution.
Let’s discuss your project and build something great.
Embedded System
Linux
ESP32
Raspberry Pi
ESP8266
Home Automation
Circuit Design
Digital Electronics
Arduino
Electrical Engineering
Internet of Things
PCB Design
Virtual Assistance
Nguyen Dinh B.
Hanoi, Vietnam
$25/hr
5.0
59 jobs
Hello!
I’m Ben, a hardware and firmware expert with 8+ years of experience in designing hardware, programming embedded systems, developing high-performance software solutions and building AI automation system. My goal is to provide innovative, reliable, and high-performance solutions that meet your needs.
What I Offer
1. End-to-End Hardware Design
- Advanced PCB Design & Hardware Development: Expertise in schematic capture, PCB layout, and multi-layer board design for reliable, high-performance, and manufacturable products. Experienced with KiCad, Altium, OrCAD, and Eagle.
- High-Speed Design: Strong experience in 1–14 layer PCBs, including DDR3/DDR4/LDDR4, PCIe, USB (2.0/3.0/3.1/3.2), HDMI and 10/100/1000/10Gbase-T1 Ethernet.
- Microcontrollers & SoMs: Firmware and hardware development for ARM Cortex-M3/M4 (STM32, ESP32, Nordic nRF52/53/91 series,...); custom boards for Raspberry Pi CM4/CM5, Orange Pi, iMX8, Jetson Nano/Xavier/Orin, RK3588/RK3588S, RK3568, RV1126, Allwinner, Zynq-7010, Zynq7020, XCZU9EG
- Power & Hardware Integration: Experience in DC-DC, AC-DC, Buck, Boost, and Flyback converters, along with hardware design involving audio, RF modules, PA, LCD, filters, RFID, touch screens, and LVGL-based interfaces.
- Prototype, Testing & Validation: Full support for board bring-up, debugging, validation planning, and functional testing to ensure hardware works reliably in real-world applications.
- Manufacturing & Prototyping Support: Preparation of BOM, Gerber, and manufacturing-ready files, with hands-on support for prototype production and manufacturing through JLCPCB and PCBWAY.
2. Robust Firmware Development
- Languages & Development: Strong embedded firmware development in C/C++, Python with experience using Visual Studio Code, STM32CubeIDE, Arduino IDE, ESP-IDF, and Segger.
- Communication Protocols: Proficient in USB, UART, I2C, SPI, I2S, RS232, and RS485, enabling reliable communication across embedded systems and connected devices.
- Wireless & Connected Systems: Experience with BLE, BLE Mesh, ZigBee, UWB, LoRa, NB-IoT, 4G LTE, Wifi, WiFi Mesh, and NFC for IoT and wireless product development.
- Sensor: light sensor, CO, Smoke Sensor, Dust Sensor, Air Sensor, pH sensor, IMU sensor, Accelero, Gyro sensor,...
- UI/UX for Embedded: Figma, TouchGFX, LVGL for STM32, ESP32, Raspberry Pi.
- Motors Control: BLDC, Stepper, Servo, DC Motors
- Robotics: Expertise in ROS/ROS2 for applications like AGV, AMR, 6-axis robots.
3. Some of my product that I have designed and released to the market:
- Home IP Camera – Rockchip RV1126: SoC-based AI camera design with DDR3/DDR4, MIPI-CSI CMOS image sensor, Ethernet/Wi-Fi streaming, IR LED & IR-cut control, audio, USB, and MicroSD.
- Smart Home Gateway – NXP i.MX 8M Mini: Linux-based smart home gateway with DDR4, eMMC, Gigabit Ethernet, Wi-Fi/BLE, Zigbee, TFT LCD/touchscreen, USB, and multiple peripheral interfaces.
- Tablet Mainboard: RK3399-based board with DDR3, eMMC, touch screen, LTE.
- Smart Water Meter: BLE/Wi-Fi design with TI MCU.
- Wearable Devices: Low-power wearable designs with wireless connectivity, sensors, and battery management
- Industrial Edge AI Gateway: NXP i.MX 8M Plus SMARC with Ethernet, CAN-FD, RS485, PCIe, M.2, and MIPI-CSI for industrial automation and Edge AI.
- AI Vision Carrier Board: NVIDIA Jetson Orin NX with multi-camera, NVMe, Ethernet, CAN, and USB 3.x for real-time AI vision.
- RK3588/RK3588S AI SBC: High-performance embedded platform for multi-camera processing, Edge AI, and industrial computing.
- RK3568 Industrial Gateway: Dual Ethernet, CAN, RS485, LTE/Wi-Fi, and industrial I/O for automation and IoT.
- RV1126 Smart Camera: AI camera platform with MIPI-CSI, Ethernet, IR control, audio, and hardware video encoding.
- Zynq-7010/7020 FPGA Platform: ARM + FPGA design for high-speed data acquisition, real-time control, machine vision, and DSP.
- High-Performance ESC for Drones: Real-time motor control design for efficient and stable drone operation
With our experience and expertise, I’m confident I can provide tailored solutions to help you complete your project and release your product to the market . I look forward to the opportunity to work with you.
Embedded System
PCB Design
KiCad
Altium Designer
nRF52
STM32
ESP32
Raspberry Pi
FPGA
Hardware Design
EasyEDA
OrCAD
Arduino
LoRa
Firmware
Embedded Linux
Schematic
Bluetooth LE
Linux
App Development
Chathuni W.
Colombo, Sri Lanka
$35/hr
5.0
86 jobs
Seeking an expert to transform your idea into a market-ready product?
Clients hire me for turnkey hardware and firmware solutions. Beyond PCB design, I handle sourcing, PCBA, and rigorous testing. I don't just send files; I build, debug, and deliver high-quality proven prototypes.
I help startups, entrepreneurs, and engineering teams take products from concept → prototype → production. I support the full process, including product research, circuit design, schematic capture, PCB design, firmware development, prototype manufacturing, assembly, testing, debugging, validation, and production handoff.
---- Why clients hire me ----
✅ I turn complex ideas into working products
I take rough concepts, difficult requirements, or incomplete designs and turn them into practical, tested hardware.
✅ I stay involved until the design works
I do not stop at schematics or PCB layout. I support bring-up, debugging, rework, firmware, validation, and design improvements so clients are not left with non-working prototypes.
✅ I handle compact and difficult PCB designs
I am often brought in for very compact PCBs, custom PCB shapes, high-density layouts, RF boards, high-speed boards, analog signal chains, and power electronics, where careful design choices are critical.
✅ I reduce the client’s workload
My team and I can support PCB manufacturing, component sourcing, assembly, firmware, testing, and small-batch production, so clients do not need to coordinate multiple vendors.
✅ I work well with technical teams
I can join ongoing projects quickly, support existing hardware and firmware teams, and help move development forward without slowing things down.
---- Services I offer ----
🔹 Complete product development — idea to prototype to manufacturing
🔹 PCB design — professional, compact, production-ready layouts
🔹 PCB review and verification — schematic review, layout review, design improvements
🔹 Circuit design and simulation
🔹 Firmware development — microcontrollers, processors, and Linux-based systems
🔹 Hardware bring-up, debugging, testing, and validation
🔹 Fixing boards that do not work properly
🔹 Prototype assembly and small-batch manufacturing
🔹 3D CAD support / enclosure coordination
---- PCB design expertise ----
I design PCBs across a wide range of domains, including:
▪ High-speed PCB design
▪ High-density / compact PCB design
▪ RF PCB design
▪ Analog PCB design
▪ Power electronics PCB design
▪ IoT hardware design
▪ Custom-shape and space-constrained PCB layout
▪ Multi-board systems and interconnect design
I focus on clean layout, manufacturability, reliability, and real-world performance.
---- Firmware and embedded systems ----
I provide professional firmware development as a standalone service or as part of a full product build.
Platforms and families I work with include:
▪ STM32, ESP32 / ESP-IDF, Arduino
▪ TI C2000 / Code Composer Studio
▪ PIC / Atmel / SAMD
▪ FPGA / SoC systems
▪ Linux-based embedded systems
▪ Single-board computers, microprocessors, and controllers
Languages:
▪ C / C++
▪ MicroPython
▪ JavaScript / embedded scripting
▪ Assembly when needed
---- Tools and software ----
PCB Design:
▪ Altium Designer
▪ KiCad
▪ EasyEDA
Embedded / Firmware:
▪ STM32CubeIDE
▪ ESP-IDF
▪ Arduino IDE
▪ Code Composer Studio
Simulation / Engineering Tools:
▪ LTspice
▪ Proteus
▪ HFSS
▪ Multisim
▪ LabVIEW
GUI / Display Frameworks:
▪ LVGL
▪ TouchGFX
---- Interfaces, protocols, and technologies ----
Interfaces:
▪ SPI
▪ I2C
▪ UART
▪ CAN
▪ I2S
▪ USB
▪ Ethernet
▪ MIPI-CSI / MIPI-DSI
▪ LVDS
▪ FMC
▪ Memory interfaces
Wireless / Connectivity:
▪ WiFi
▪ BLE
▪ LoRa
▪ GPS / GNSS
▪ LTE / GSM
▪ NFC
▪ UWB
Protocols:
▪ MQTT
▪ HTTP
▪ FTP
▪ TCP/IP
▪ UDP
▪ SSL/TLS
Operating Systems:
▪ FreeRTOS
▪ TI-RTOS
▪ Embedded Linux
---- Specializations ----
🔸 Power Electronics — DC-DC converters, MPPT, motor control, BMS, power supplies
🔸 RF Design — 2.4 GHz to 77 GHz, radar systems, filters, mixers, antennas
🔸 High-Speed Design — USB, LVDS, FMC, memory and fast digital interfaces
🔸 Analog Design — signal conditioning, ADC interfacing, filtering, measurement circuits
🔸 Embedded Product Development — concept to tested prototype to production
🔸 Testing and Debugging — hardware issues, prototype failures, bring-up and validation
---- Testing, validation, and manufacturing support ----
One of the biggest advantages I offer is hands-on validation.
My team and I support:
▪ In-house bring-up and testing
▪ Prototype debugging and rework
▪ Small-batch PCB assembly
▪ Automatic pick-and-place assembly
▪ Reflow soldering
▪ Component sourcing and fabrication coordination
Let’s talk
If you need help with PCB design, embedded systems, firmware development, RF design, power electronics, debugging, prototype testing, or taking a product to production, I’d be glad to discuss your project.
Embedded System
PCB Design
Circuit Design
Electronics
Electronic Design
Microcontroller Programming
Altium Designer
Firmware
Electrical Engineering
C++
Multilayer PCB
ESP32
Schematic
Firmware Programming
nRF52
Raspberry Pi
STM32
Prototype
Hardware Design
Eren B.
Istanbul, Turkey
$60/hr
5.0
70 jobs
🚀 Looking to bring a cutting-edge embedded product to life? I provide hardware & firmware solutions that power smart, connected devices—from concept to certified, production-ready electronics.
With 15+ years of hands-on experience, I’ve helped startups and enterprises successfully launch 50+ products across industries, including IoT, industrial automation, and consumer electronics.
I specialize in end-to-end product development, ensuring seamless hardware-firmware integration, low-power optimization, cloud connectivity, and regulatory compliance (FCC, CE, etc.). Whether you need a prototype, small-batch production, or full-scale manufacturing, I can support you at every stage.
🔹 Services Offered
✅ Embedded Firmware Development – Real-time, energy-efficient, and scalable solutions
✅ Custom Hardware & PCB Design – Schematic design, PCB layout, and prototyping
✅ IoT & Wireless Expertise – LoRaWAN, Wi-Fi, Bluetooth, Cellular IoT (2G, 3G, 4G, NB-IoT)
✅ Device Manufacturing & Prototype Production – Rapid prototyping, small-batch production, and mass manufacturing support
✅ Cloud & Dashboard Solutions – IoT data visualization with ThingsBoard, AWS IoT, and ChirpStack
✅ Regulatory Compliance & Certification – FCC, CE, UL pre-compliance testing and firmware optimization
✅ Full-Stack Embedded Solutions – From board bring-up to cloud integration
I help businesses and innovators get high-quality embedded solutions without delays or technical roadblocks. Whether you're building a prototype, scaling to production, or optimizing an existing design, I provide efficient, cost-effective, and scalable solutions.
📡 Expertise in Microcontrollers & Hardware
✅ Microcontrollers & SoCs: STM32 (STM32WL, STM32WB, STM32L0, STM32L4, STM32F1, STM32F4, STM32F7), AVR, PIC, Renesas, TI, NXP, ESP32, Raspberry Pi (RP2040)
✅ Wireless & IoT Technologies: LoRa, LoRaWAN, Sub-GHz, Wi-Fi, Bluetooth, Cellular IoT (2G, 3G, 4G, NB-IoT)
✅ Communication Interfaces: I2C, SPI, UART, QSPI, RS485, RS232
✅ LoRaWAN Gateways: Milesight UG65, RAK Wireless WisGate, CloudGate Micro
💻 Software & Development
✅ Programming Languages: C, C++, Assembly, Perl, C#, Python, JavaScript
✅ RTOS & Embedded OS: FreeRTOS, Zephyr, QNX, RT-Linux
✅ Cloud & IoT Platforms: AWS IoT Core, The Things Network (TTN), ChirpStack
✅ IoT Dashboard Solutions: ThingsBoard, Grafana, and AWS IoT Dashboards
✅ Protocols: REST API, MQTT
🚀 Why Work With Me?
✅ Full-cycle embedded product development – from PCB design to firmware & manufacturing
✅ Experience in industrial, consumer, and medical electronics
✅ Optimized solutions for low power, real-time performance, and scalability
✅ Seamless integration of IoT hardware with cloud-based dashboards
✅ Proven track record of delivering high-quality, production-ready embedded systems
📩 Let’s discuss your project! Whether you need PCB design, firmware development, IoT dashboards, prototype production, or full-scale manufacturing, I can help. Click ‘Invite to Job’ to get started! 🚀
Embedded System
LoRa
STM32
PCB Design
Firmware Programming
Embedded Linux
Python
C++
Embedded C
C
Qt Framework
Linux
Assembly Language
NFC
AWS IoT Core
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At A Glance: Embedded Systems
Computer, electrical, and mechanical systems run nearly all aspects of our lives and are constantly being developed and created for new and novel uses. Many of the systems that have been developed don’t require fully functional general systems and instead rely on smaller embedded systems, which are small electronic systems that can operate on less power in more extreme environmental ranges. Embedded systems can vary from the relatively simple to the highly complex, but no matter how advanced they are, working with current systems or developing new ones is a difficult task. If you are looking to implement embedded systems into your business or project, or need to work with embedded systems that are already interacting with your business, then working with an embedded systems specialist is key to a successful operation.
Embedded systems specialists can hail from several different backgrounds, from engineers to computer scientists and electronics technicians. A freelance embedded systems specialist’s experience can come from working with microcontrollers or microprocessors found in a variety of systems, such as traffic lights, MP3 players, watches, and various avionic technologies. Embedded systems specialists can leverage this expertise to help you modify and optimize current embedded systems for your business needs and uses. Specialists can also help you find resources to train, design, or even create custom systems for your use or distribution. However you leverage the talents and skills of a freelance specialist, you can be comfortable knowing it will be an effective and powerful tool for you and your business.