
Closed
Posted
Paid on delivery
We are seeking an experienced engineer for an embedded systems project involving custom electronics and firmware development. The ideal candidate should have strong experience with embedded systems, Arduino, PCB design, Embedded C, and Python. Responsibilities include developing and debugging firmware, designing and reviewing PCB schematics and layouts, integrating sensors and peripheral devices, implementing communication interfaces, and troubleshooting hardware and software issues. Familiarity with protocols such as UART, SPI, I2C, and USB is highly desirable. Experience with wireless communication, power management, microcontrollers, and prototype development is a plus. We are looking for someone who can provide practical engineering solutions and contribute to the overall system architecture. This project may lead to long-term collaboration for the right candidate. Please share your relevant experience and examples of similar projects when applying.
Project ID: 40534366
68 proposals
Remote project
Active 2 days ago
Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
68 freelancers are bidding on average $146 USD for this job

⭐⭐⭐⭐⭐ Create Embedded Systems with Custom Electronics and Firmware ❇️ Hi My Friend, I hope you're doing well. I've reviewed your project requirements and see you're looking for an experienced engineer for embedded systems. Look no further; Zohaib is here to help you! My team has successfully completed 50+ similar projects in embedded systems. I will develop and debug firmware, design PCB layouts, and integrate sensors efficiently, all within your budget. ➡️ Why Me? I can easily handle your embedded systems project as I have 5 years of experience in Arduino, PCB design, Embedded C, and Python. My expertise includes firmware development, integrating communication interfaces, and troubleshooting hardware and software issues. Additionally, I have a strong grip on protocols like UART, SPI, I2C, and USB, ensuring a comprehensive solution for your needs. ➡️ Let's have a quick chat to discuss your project in detail and let me show you samples of my previous work. Looking forward to discussing this with you! ➡️ Skills & Experience: ✅ Embedded Systems ✅ Firmware Development ✅ PCB Design ✅ Arduino Programming ✅ Embedded C ✅ Python Development ✅ Sensor Integration ✅ Communication Interfaces ✅ Troubleshooting ✅ Wireless Communication ✅ Microcontroller Programming ✅ Prototype Development Waiting for your response! Best Regards, Zohaib
$150 USD in 2 days
7.9
7.9

Hi, I’m a Senior Software Engineer with 10+ years of experience working across embedded systems, Python development, Linux environments, IoT platforms, cloud infrastructure, and hardware-integrated applications. My background includes ESP32 and Raspberry Pi projects, sensor integrations, communication protocols, backend services, automation systems, and troubleshooting complex hardware/software interactions. I’m comfortable working with UART, SPI, I2C, USB, wireless communication, device-to-cloud architectures, and system-level debugging. I regularly work with Python for device communication, data collection, monitoring, APIs, and cloud integrations, and I’m experienced reviewing technical designs, system architecture, and engineering workflows. I bring a practical engineering mindset, focus on root-cause analysis, and can contribute beyond implementation by helping improve reliability, maintainability, and overall system design.
$250 USD in 7 days
7.9
7.9

Hi I am an embedded systems engineer with over 16 years of experience. I have worked on custom electronics from early architecture through PCB schematics/layout review, firmware bring-up, sensor and peripheral integration, and prototype debugging, including Arduino-class boards and bare-metal Embedded C on common microcontrollers. For this project I can help shape the hardware/firmware architecture, review or design the PCB around power, signal integrity and manufacturability, implement and debug UART, SPI, I2C, and USB interfaces, and add Python tools where useful for testing, data logging, or production support. I also have experience with low-power designs, wireless modules, and consumer-grade products moving from concept to working prototypes and production readiness. I cannot share client project files publicly, but I can discuss similar embedded, PCB, and firmware work and show relevant examples privately if needed. A few details would help me scope it properly: target microcontroller, number/type of sensors, wireless requirement if any, and whether you already have schematics or firmware started. Please contact me to discuss details.
$250 USD in 10 days
7.6
7.6

As a seasoned engineer with over 13 years of experience, I have developed a multitude of customized solutions using Python and C-based languages. My expertise spans a wide range of projects including Web Automation, Data Mining & Extraction, AI Solutions, Full-Stack and Mobile Application development. Specifically, in your project, my experience in Python will come handy as it shares close ties with Embedded C, PCB design and all the necessary protocols like UART, SPI, I2C, USB you desire in this position. Furthermore, I am deeply knowledgeable in the entire development process and can handle responsibilities encompassing firmware development (Arduino) to troubleshooting complex hardware and software issues. In one of my most recent projects, I developed an AI program to automate emergency messaging via Twilio API & Vapi for distress calls; this reflects my ability to integrate sensors and peripherals for efficient device interaction - a crucial skill for this role. Throughout my career, I've continuously emphasized the provision of high-impact practical solutions that align with the overall system architecture. Solving problems within this realm is not just my skill but my passion. Therefore, I strongly believe that combining my experience and skills with your project could lead us to a long-term collaboration that delivers expected results. Reach out today to see how we can make your vision a reality!
$30 USD in 1 day
7.1
7.1

HI, KINDLY READ THROUGH MY PROPOSAL WHAT I CAN DO I will deliver complete embedded systems development for your project including custom PCB design, reliable firmware in Embedded C / Arduino, sensor integration, communication interfaces, and full system debugging for a robust and scalable solution. MY APPROACH ✅ Schematic design and PCB layout (KiCad / EasyEDA) with proper power management and signal integrity ✅ Firmware development in Embedded C with clean architecture for microcontrollers ✅ Integration of sensors, peripherals, and protocols (UART, SPI, I2C, USB) ✅ Wireless communication modules and low-power optimization ✅ Thorough testing, debugging, and documentation for reliable operation RELEVANT PROJECTS Multiple end-to-end embedded projects involving Arduino/ESP32/STM32 platforms, custom PCB design, sensor fusion, wireless connectivity, and Python tooling for industrial and consumer devices. DELIVERABLES • Complete PCB design files (schematics, layout, Gerber, BOM) • Fully tested and documented firmware • Python scripts for configuration/testing • Integration guide and troubleshooting notes QUESTIONS 1. Which microcontroller or platform are you targeting (ESP32, STM32, Arduino, etc.)? 2. What are the main sensors and peripherals that need to be integrated? 3. Do you have any specific wireless requirements (WiFi, BLE, LoRa, etc.)? Ready to start immediately. Looking forward to building a strong long-term collaboration.
$100 USD in 5 days
6.7
6.7

⭐⭐⭐⭐⭐ Your project aligns very well with my background. I work across the full embedded product development cycle—from electronics design and PCB development to firmware implementation, testing, and production support. I have 15+ years of experience developing embedded systems using Arduino, ESP32, STM32, and other microcontroller platforms. My work includes custom PCB design, Embedded C/C++ development, Python-based tools and automation, sensor integration, power management, and hardware bring-up. Relevant experience includes: • Custom microcontroller boards and embedded controllers • Sensor acquisition and monitoring systems • UART, SPI, I2C, USB, RS-485, and Modbus communications • Wireless IoT devices using Wi-Fi, BLE, LoRa, and cellular technologies • PCB schematic capture, layout review, DFM, and manufacturing support • Hardware/firmware debugging and prototype validation I can contribute not only to implementation but also to system architecture, component selection, reliability improvements, and troubleshooting throughout development. Proposed Milestones: 1. Requirements & Architecture Review 2. Hardware/Firmware Development 3. Integration & Debugging 4. Validation & Optimization 5. Ongoing Engineering Support I'm interested in building a long-term collaboration. Could you share the target microcontroller platform and the current stage of development (concept, prototype, or existing hardware)?
$140 USD in 7 days
5.0
5.0

Hello, I will serve as your embedded systems engineer to develop both the custom hardware and firmware for your project. I will handle the schematic capture and PCB design layout, focusing on stable power management, optimal component placement, and signal integrity for standard communication interfaces including UART, SPI, I2C, and USB. For the software layer, I will write efficient, modular code in Embedded C or using the Arduino framework to control the microcontrollers, integrate sensors, and manage wireless communication. I will also develop custom Python scripts to automate hardware testing and parse debugging telemetry. I will guide the overall system architecture and lead the troubleshooting of hardware and software issues through prototype validation. I have successfully designed and delivered several wireless IoT devices, motor controllers, and sensor acquisition boards from initial schematic to production-ready PCBs. 1) What specific microcontroller family, such as STM32, ESP32, or AVR, do you plan to use for this project? 2) What are the main physical dimensions and target input voltage parameters for the custom PCB? 3) Which specific wireless communication protocol, such as Bluetooth, Wi-Fi, or LoRa, does the device require? Thanks, Bharat
$110 USD in 7 days
5.0
5.0

Hello, I can support your embedded systems project with firmware development, hardware integration, and system level debugging. I have strong experience working with embedded C and microcontroller based systems, including UART, SPI, and I2C communication for sensor and peripheral integration. I can develop and debug firmware for Arduino and embedded platforms, assist in reviewing PCB schematics for functional reliability, and help ensure smooth communication between hardware and software layers. I also have experience in Python based tools for testing, logging, and device interaction, which helps speed up validation and troubleshooting during development. My focus is always on practical, stable engineering solutions that are easy to maintain and scale. I can contribute both at firmware level and system architecture level depending on project needs, and I am open to long term collaboration. Looking forward to working with you. Best Regards, Solves Inn
$30 USD in 1 day
4.2
4.2

As a seasoned Senior Electronics Engineer with over 8 years of experience specifically geared towards RF engineering and embedded systems like the one your project requires, I assure you that my skills are more than equipped for the task at hand. I have an extensive range of skills that align perfectly with your requirements, from circuit design and PCB layout, to firmware development and microcontroller work—all composition valuable components of an embedded system project. Throughout my career, I've successfully conceptualized, designed, tested, and delivered numerous hardware projects incorporating various technologies similar to the one you're seeking. For instance, I've extensively worked with connecting sensors and peripheral devices and implementing communication interfaces that entail protocols like UART, SPI, I2C and USB – all highly relevant for your project. Moreover, my knowledge in wireless communication and power management can bring added value to your initiative. Overall, my multi-faceted experience allows me to provide practical engineering solutions while contributing meaningfully to overall system architecture. With a strong ability to troubleshoot intricate hardware and software issues in tandem with agile system integration skills, I'm confident that I can deliver high-quality results with 100% compliance with safety, reliability, performance standards on time. Thank you for considering my proposition—I'm excited at the prospect of working together on this endeavor!
$140 USD in 5 days
4.4
4.4

With a background in embedded systems and extensive experience in firmware development using Arduino and Embedded C, I am well-equipped to tackle your custom electronics project. I have successfully designed and implemented PCB layouts, integrated sensors, and resolved hardware/software issues in previous projects. My question is: Are there any specific sensor or communication protocol requirements for this project that need special attention? Looking forward to potentially collaborating on this exciting project. Regards, Yogesh Kumar
$150 USD in 7 days
4.2
4.2

Good day. I have experience in developing hardware, firmware, PC-software. Some past projects you can look in my portfolio. For prototyping i have few devkits (Arduino, Discovery). Experince in Python: little CLI-tools. Experince in dev-environmentL git, CMake.
$30 USD in 1 day
4.8
4.8

⭐⭐⭐⭐⭐ ✅Hi there, hope you are doing well! I have completed multiple embedded system projects involving custom PCB design and firmware development with Arduino and STM32 platforms efficiently. From my experience, addressing hardware-software integration and communication protocols is critical to project success. Approach: ⭕Develop and debug firmware in Embedded C and Python ⭕Design and review PCB schematics/layouts ⭕Integrate sensors and peripheral devices with UART, SPI, I2C, USB ⭕Implement robust communication interfaces and troubleshoot issues ⭕Provide practical engineering solutions and optimize system architecture ❓Could you specify the microcontrollers and sensor types involved? I am confident in delivering high-quality embedded solutions and look forward to contributing to your project. Best regards, Nam
$200 USD in 3 days
3.8
3.8

Hi there, Your project "Embedded Systems Engineer Needed for PCB Design and Firmware Development" instantly caught my attention — it's exactly the kind of work we love to take on. I don’t just want to tick the boxes here; my aim is to hand you something that genuinely goes beyond what you pictured. We specialise in Python, Electronics, Troubleshooting, Microcontroller, which lines up directly with what you need. How we'd approach it: - Discovery & planning to lock down scope and requirements - Execution with regular progress updates - Testing and quality checks before delivery - Deployment / handover and post-launch support From kickoff to final handover, I’ll keep things transparent, on schedule, and squarely focused on your goals. Send over any references you have and I’ll come back with a clear plan and milestones. Best regards, FreeLancers360 Let’s connect in chat and get started — message me anytime and I’ll reply right away!
$30 USD in 7 days
3.3
3.3

Hello, I’m excited about the opportunity to work on your embedded systems project, as I have a solid background in custom electronics and firmware development. I understand that you’re looking for an engineer who can effectively design, develop, and troubleshoot both hardware and software components. With over five years of experience in embedded systems, I specialize in Embedded C and Python programming, PCB design, and integrating various sensors and peripherals. My expertise includes working with protocols such as UART, SPI, I2C, and USB, ensuring seamless communication within the system. To successfully contribute to your project, I propose the following approach: - Conduct a thorough review of existing system requirements and specifications. - Develop and debug firmware while designing and optimizing PCB layouts. - Integrate sensors and communication interfaces, ensuring robust functionality. - Perform detailed testing and troubleshooting to resolve any hardware/software issues. I am eager to bring my technical skills and problem-solving abilities to your team and am confident in delivering high-quality results on time. I would love to discuss this project further and explore how I can contribute to your goals. Looking forward to the possibility of working together!
$30 USD in 7 days
3.2
3.2

Hi, I can support your embedded systems project with PCB design/review, firmware development, sensor integration, communication interfaces, and hardware/software debugging. The best solution is to first review the project requirements, target microcontroller, sensors, power needs, interfaces, and prototype goals. Then I can design or review the schematic and PCB layout, develop clean Embedded C/Arduino firmware, integrate peripherals, test UART/SPI/I2C/USB communication, and troubleshoot issues across both hardware and software. I’m comfortable with embedded systems, Arduino, microcontrollers, Embedded C, Python utilities, PCB layout, sensor interfacing, power management, wireless communication, prototype bring-up, debugging, and practical engineering documentation. Deliverables can include: * Firmware development and debugging * PCB schematic/layout review or design * Sensor and peripheral integration * UART/SPI/I2C/USB communication setup * Python support scripts if needed * Hardware troubleshooting * Prototype testing support * Clear documentation and handover notes I’ll focus on reliable implementation, clean code, practical circuit design, and solutions that can support both the current prototype and future long-term development. Best regards Ankit
$50 USD in 1 day
3.0
3.0

Hi sir, I can manage share task in job summery with quality features and functions. I am expert self-motivated and hardworking Python developer and we can ensure complete customer satisfaction and 100% quality work. Let’s chat Thanks
$200 USD in 2 days
3.3
3.3

Hi there! I understand you need an experienced embedded systems engineer to support both firmware development and hardware integration, including sensors, communication protocols, and PCB-related work. Issues in embedded projects often come from small hardware-software mismatches, so careful debugging is critical. I have solid experience in embedded systems development using Arduino, Embedded C, and Python for device control and testing. I have worked on microcontroller-based projects involving UART, SPI, I2C communication, sensor integration, and prototype-level debugging, along with firmware optimization for stable performance. My approach will be to first review your current hardware setup and firmware structure. Then I will debug and stabilize communication between sensors and microcontrollers. I will implement and refine required protocols like UART, SPI, and I2C for reliable data flow. I will also support PCB review feedback and ensure firmware aligns properly with hardware design to avoid integration issues. check our work [https://www.freelancer.com/u/ayesha86664](https://www.freelancer.com/u/ayesha86664) Do you already have existing schematics and firmware code available, or will parts need to be developed from scratch? Let me know if you’re interested & we can discuss it. Best Regards Ayesha
$100 USD in 5 days
2.5
2.5

I am an embedded systems engineer with strong experience in Arduino, STM32, ESP32, PCB design (KiCad/Altium), Embedded C, Python, and communication protocols including UART, SPI, I2C, and USB. I have developed and debugged firmware, integrated sensors and peripherals, and delivered complete hardware and software solutions from prototype to production. I am comfortable troubleshooting both hardware and software issues and can contribute to system architecture decisions. Available for long-term collaboration and ready to start immediately. Best regards, Engr. Muhammad Uzair
$120 USD in 4 days
1.0
1.0

Hello, I understand you need to get a reliable embedded system where firmware, PCB design, and hardware integration all work smoothly together without stability issues or communication failures. I recently developed an embedded automation system involving Arduino-based control, sensor integration, and custom PCB design where I implemented UART and I2C communication for real-time device interaction and ensured stable power and signal integrity across the board. In similar projects, I have designed and debugged PCB schematics and layouts, developed Embedded C firmware for microcontrollers, and built Python-based tools for testing, calibration, and serial communication monitoring. I focus on clean hardware-software integration, especially when dealing with noisy signals, timing issues, and peripheral synchronization. For your project, I will: * Design and review PCB schematic and layout with proper power and signal integrity * Develop and debug Embedded C firmware for microcontroller operations * Implement UART, SPI, I2C, and USB communication interfaces * Integrate sensors, wireless modules, and peripherals * Test and troubleshoot hardware-software interactions for stability I also ensure proper prototyping practices so the system is scalable for future enhancements and long-term use. Let’s build a stable and production-ready embedded system for your project. Best regards
$90 USD in 3 days
0.6
0.6

Hello, I work across Python systems, edge integrations, and production-grade ML pipelines, with regular exposure to firmware-adjacent workflows and hardware-software interfacing. The hard part here is not just firmware bring-up. It is keeping timing, memory, and peripheral interactions stable under real conditions. Sensor reliability, signal noise, and calibration drift will affect downstream behavior. Hardware revisions and firmware changes must stay tightly synchronized to avoid regressions. Debugging across layers is also a recurring bottleneck. What microcontroller family and toolchain are you standardizing on? How are you validating sensor data and defining ground truth during testing? What are the expected constraints around latency, power, and continuous operation? Happy to review details and align quickly.
$140 USD in 7 days
0.0
0.0

Sparks, United States
Member since Jun 23, 2026
$250-750 USD
₹12500-37500 INR
$250-750 USD
$150-225 USD
€3000-5000 EUR
$250-750 USD
$250-750 USD
₹12500-37500 INR
$30-250 USD
₹1500-12500 INR
₹37500-75000 INR
₹400-750 INR / hour
$30-250 CAD
₹12500-37500 INR
£250-750 GBP
$250-750 USD
₹1500-12500 INR
$250-750 USD
₹750-1250 INR / hour
$750-1500 USD