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CustomProject for Francisco: We are seeking experienced Hardware and Firmware Development Engineers to lead the end-to-end development of a consumer-grade embedded IoT system. This is a collaborative project requiring close coordination between hardware and firmware teams to deliver a production-ready industrial IoT device with advanced wireless capabilities and sensor integration. HARDWARE DEVELOPMENT ENGINEER Key Responsibilities: - System-level hardware architecture and design freeze - Component selection (MCU/SoC, power ICs, storage interfaces, wireless modules) - Schematic design and PCB layout (high-speed + mixed-signal, EMI-aware) - Power integrity, grounding, shielding, and DFM/DFA compliance - Prototype fabrication support and manufacturer Q&A - Hardware bring-up support and validation with firmware engineer - Clear documentation for handover and future revisions Deliverables & Milestones: Milestone 1 – System Architecture & Design Freeze (10 days): - System block diagram - MCU/SoC selection with justification - Storage interface definition - Power budget & thermal assumptions - Preliminary BOM with cost estimates - Key risks & assumptions documentation Milestone 2 – Schematic Design + PCB Layout (14 days): - Complete Altium schematic and PCB layout - ERC/DRC-clean design - Stack-up and impedance details - Manufacturing files (Gerber, PnP, BOM) - Design notes (PDF + native files) Milestone 2-Extension – Prototype Fabrication Support: - Manufacturer Q&A support - Assembly file verification - Footprint/polarity confirmation Milestone 5 – Integration & Handover (7 days): - Schematics, PCB files, BOM handover - Bring-up notes - Hardware validation support - Test points/debug guidance FIRMWARE DEVELOPMENT ENGINEER Key Responsibilities: - Develop, optimise, and debug firmware for industrial IoT devices - Integrate wireless communication protocols (Wi-Fi, BLE) and sensor systems - Work with high-speed data interfaces and advanced wireless technologies - Ensure seamless hardware-software integration and system reliability - Collaborate with hardware teams for system bring-up and testing - Participate in hardware validation and integration milestones Required Qualifications: - Proven experience with consumer electronics and mixed-signal designs (Hardware) - Strong background in embedded firmware development for IoT devices (Firmware) - Experience with wireless protocols (Wi-Fi, BLE) and sensor integration - Prior experience with EU/US consumer products strongly preferred - Ability to work collaboratively across hardware-firmware boundaries - Strong documentation and communication skills Preferred Freelancer Locations: China, Japan, Taiwan, South Korea, Thailand, Vietnam, Eastern Europe, India Timeline: Hardware: Fixed by milestones as detailed above (approximately 31 days + fabrication support) Firmware: 2-3 months Both roles must coordinate closely throughout the development cycle Note: Both engineers must strictly adhere to the milestone plan and deliverables. Clear communication and collaboration between hardware and firmware teams is essential for project success.
Project ID: 40550083
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Here comes Francisco ? ? ? Thanks Ritesh for assigning me this project, we still need to see what stage of development it's in and which parts of the hardware I'll be working on.
€30 EUR in 15 days
4.6
4.6
23 freelancers are bidding on average €25 EUR for this job

Hello, I’m an Electronics and Embedded Systems Engineer with over 6 years of experience in end-to-end hardware and firmware development for IoT products, including schematic design, multilayer PCB layout (Altium/KiCad), STM32/ESP32-based systems, power management, wireless integration (Wi-Fi/BLE), sensor interfaces, and production-ready DFM/DFA designs. I can lead the hardware architecture, schematic capture, PCB design, prototype bring-up, and work closely with the firmware team throughout integration and validation. I am comfortable working within your milestone schedule and can provide complete documentation, ERC/DRC-clean designs, manufacturing files, bring-up notes, and ongoing technical support through prototype fabrication and system integration. I am available to start immediately and maintain regular communication throughout the project.
€19 EUR in 7 days
6.5
6.5

Hi Francisco, I am an embedded systems engineer with over 16 years of experience in consumer-grade embedded IoT product design, covering both hardware architecture and firmware bring-up through production handover. This project matches my background well: mixed-signal PCB design, MCU/SoC and wireless module selection, power budgeting, EMI-aware layout, DFM/DFA review, prototype bring-up, and close firmware integration for Wi-Fi/BLE sensor-based devices. I can support the hardware milestones in Altium with clear design notes, manufacturing outputs, test/debug guidance, and practical coordination with the firmware side so issues are caught early during bring-up rather than late in integration. I can also assist on the firmware side where useful, including sensor drivers, wireless connectivity, board validation firmware, and production test support. A few details I would like to confirm are the target wireless certifications, enclosure/size constraints, preferred MCU or SoC family, sensor list, power source, and whether the device needs OTA updates or cloud connectivity. Please contact me to discuss details.
€30 EUR in 90 days
5.6
5.6

Hi Francisco, I am an experienced hardware design engineer specializing in the end-to-end development of production-ready industrial IoT systems. I understand this project demands a high-speed, mixed-signal Altium PCB layout that requires strict EMI awareness, careful shielding, and precise power integrity optimization to handle advanced wireless modules and sensors. I am fully prepared to hit your 10-day timeline for Milestone 1, delivering a frozen system architecture, optimal MCU/SoC selection, and a comprehensive power budget. Following that, I will execute an ERC/DRC-clean layout within 14 days, carefully managing the layer stack-up, impedance details, and strict DFM/DFA compliance. Furthermore, I will stay on board to support prototype fabrication, handle manufacturer Q&As, and collaborate closely with your firmware team during hardware bring-up. Let’s connect via chat to review your specific design goals and move this project forward seamlessly. Regards.
€30 EUR in 60 days
5.7
5.7

HI, I am an experienced electronics and PCB Design engineer, specialised in use of ECAD software such as Altium Designer, KICAD, EasyEDA, etc. for the the design of electronics and PCB. I will design your projects to meet your Requirements and the industry standard. I do all kinds of circuits such as Power delivery circuit, Sensor Integrated Circuits, wireless control, MCUs etc. I will deliver the following. The Schematics for your Design The PCB for the design Bill of materials(If needed) Gerber, Pick and Place and other manufacturing and assembly drawings needed. Full Support and consultancy till the project is done. Kindly send me message for my previous designs and also so we can discuss further on your project I look Forward to working with you. Best Regards, Abdur-Rafiq
€30 EUR in 7 days
5.2
5.2

⭐⭐⭐⭐⭐ Thank you for sharing the detailed project scope. I've reviewed the milestone plan carefully and appreciate the structured development approach. This project requires strong coordination between hardware and firmware, and I'm comfortable working within that collaborative workflow. I can contribute across the complete hardware development cycle, including system architecture, component selection, mixed-signal schematic design, Altium PCB layout, power integrity, EMI-aware routing, DFM/DFA optimization, prototype support, and hardware bring-up. I also have experience collaborating closely with firmware teams to ensure smooth integration of Wi-Fi, BLE, sensors, and production-ready validation. Milestones: System architecture & design freeze Schematic & PCB development Prototype fabrication support Hardware bring-up & integration Final documentation & handover A couple of questions: • Has the MCU/SoC already been shortlisted, or should it be selected during the architecture phase? • Are there target PCB dimensions, enclosure constraints, or cost goals for the BOM? I look forward to collaborating with your team and delivering a robust, manufacturable IoT platform on schedule.
€19 EUR in 7 days
4.8
4.8

Hi, I have 12+ years of experience in end-to-end embedded system development, delivering 40+ production IoT and industrial-grade products across ESP32, STM32 (F4/F7/H7), and mixed-signal wireless platforms with Wi-Fi, BLE, CAN, RS485, and power-optimized hardware architectures. My work includes full system architecture definition, EMI-aware PCB design, power integrity optimization, and firmware bring-up using FreeRTOS and bare-metal C/C++. Approach ✅ I will define system architecture, select MCU/SoC, storage, wireless stack, and power topology, and produce a fully justified design freeze with BOM, power budget, and risk analysis. ✅ I will develop schematic and multi-layer PCB layout in Altium (or equivalent) with impedance-controlled routing, EMI mitigation, DFM/DFA compliance, and manufacturing-ready outputs. ✅ I will coordinate hardware–firmware integration, supporting bring-up, debugging, and validation including wireless communication, sensor interfaces, and real-time system behavior. Questions ✅ What is the target wireless architecture (Wi-Fi only, BLE, or hybrid with external RF modules), and are there regulatory constraints (CE/FCC pre-compliance expectations)? ✅ What are the expected power constraints (battery type, autonomy target, and peak current budget) for thermal and power-stage design? ✅ Will firmware development include cloud/backend protocol ownership, or will API specifications be fully provided by your backend team? Best, Yaroslav
€19 EUR in 7 days
5.1
5.1

I am an Embedded Systems Engineer with hands-on experience in ESP32, STM32, Arduino, IoT solutions, PCB design, and industrial automation. I specialize in developing complete hardware and firmware solutions from concept to production. My experience includes sensor integration, wireless communication, data logging systems, Ethernet and Wi-Fi connectivity, MQTT communication, cloud integration, and custom PCB development. My expertise includes: • ESP32 Firmware Development • STM32 Firmware Development • Arduino Projects • PCB Design using Altium Designer • IoT Solutions (Wi-Fi, BLE, Ethernet, MQTT) • AWS IoT Integration • Sensor Integration and Calibration • Data Logging Systems • Industrial Automation Projects • Embedded Linux Development • Serial Communication (UART, RS485, Modbus) • I2C, SPI, CAN Bus Development • Product Prototyping and Testing Recent project experience includes: • ESP32 Ethernet-based monitoring systems • BLE sensor networks with multiple wireless nodes • Engine dynamometer data acquisition systems • Industrial pressure, temperature, RPM, and level monitoring systems • MQTT-based cloud monitoring solutions • Custom PCB design and manufacturing support I focus on delivering reliable, well-documented, and production-ready solutions while maintaining clear communication throughout the project. Let's discuss your project requirements and build an efficient solution together.
€19 EUR in 5 days
4.7
4.7

hi, Greetings.! I am interested to work on your project. Please discuss design details to analyse the work scope. Looking forward to work with you. Thank you Shivkant
€19 EUR in 7 days
4.4
4.4

Hi, Please take a look at my profile and portfolio. I have experience designing production-ready embedded IoT hardware, including ESP32, STM32, mixed-signal, wireless, and multilayer PCB designs. I can handle the complete hardware scope, from system architecture and component selection through schematic capture, PCB layout, manufacturing support, and hardware bring-up. I’m comfortable collaborating closely with the firmware team to ensure smooth integration and a reliable production-ready design. I am ready to get started immediately and would be happy to discuss your project further. Best regards, Ahmed
€25 EUR in 7 days
4.0
4.0

I am an Embedded Systems Engineer with many years of experience in hardware, firmware, PCB design, industrial control, and IoT product development. For your project, I see ESP32 as a very strong platform candidate due to its built-in Wi-Fi/BLE, excellent MQTT/cloud support, OTA firmware update capability, low-power modes, and rich interfaces for sensor integration such as I2C, SPI, UART, ADC, PWM, and GPIO. I can support the complete development cycle, including: ESP32 module/variant selection such as ESP32-WROOM, WROVER, S3, or C3 System-level hardware architecture Schematic design and PCB layout RF/antenna keep-out and EMI-aware PCB design Power supply, grounding, and protection circuit design Firmware development using ESP-IDF/FreeRTOS MQTT communication, Wi-Fi/BLE provisioning, OTA updates, and sensor drivers Prototype bring-up, testing, debugging, and production documentation My approach is production-oriented, with strong attention to power integrity, manufacturability, DFM/DFA, wireless reliability, and real-world validation. I am based in Canada and would be happy to discuss your required sensors, wireless features, power source, enclosure constraints, and target production volume to define the best ESP32-based architecture for your device. I have placed a nominal bid of €30 to start our initial consultation and feasibility review. Once we define the full scope, technical specifications, and milestones, I will provide a comprehensive quote for the end-to-end development. Best regards, Mahmoudreza A.
€30 EUR in 60 days
3.6
3.6

Hi, Your project is very interesting, and I’d be glad to help bring it to life. I recently completed a similar project: an ESP32-based industrial IoT controller, which included system architecture, mixed-signal PCB design, power management, wireless integration, and manufacturing-ready documentation. That design required careful handling of power integrity, RF layout, high-speed routing, EMI considerations, and DFM/DFA, which is very similar in complexity to your project. For your project, I will: * Design the system architecture and select the optimal MCU, power, storage, and wireless components. * Develop production-ready Altium schematics and PCB layouts with clean ERC/DRC results. * Optimize power distribution, grounding, shielding, and manufacturing readiness. * Support prototype fabrication, hardware bring-up, and collaborate closely with the firmware team. Deliverables will include: * System architecture, schematics, PCB layout, BOM, Gerbers, and manufacturing files. * Hardware documentation, design notes, and bring-up guidelines. * Prototype validation and fabrication support. Preferred tools: Altium Designer, KiCad I also have experience with prototype bring-up, manufacturing support, PCB validation, and hardware debugging if needed. Looking forward to collaborating on this project. Best regards, Alexsander
€19 EUR in 1 day
1.2
1.2

Hi There, I understand that you are seeking experienced Hardware and Firmware Development Engineers for an exciting consumer-grade embedded IoT system project. My expertise in PCB layout and design aligns well with your needs for creating a high-quality, production-ready industrial IoT device. I am Abdul Haseeb Siddiqui, with over 6 years of experience in hardware development, including PCB design, circuit design, and schematic drafting. I possess a strong background in mixed-signal designs and am adept in optimizing firmware for IoT applications. I assure you of my commitment to delivering all milestones on time, including system architecture, schematic design, and prototype fabrication support. You can review my work and experience through the following portfolio links: https://www.freelancer.com/u/haseebsidd07 I am excited about the opportunity to work with you on this project! Thank you, Regards, Abdul Haseeb Siddiqui
€8 EUR in 7 days
0.0
0.0

Okay, I got what you want exactly. I am a Full Stack Engineer Hardware & Firmware Embedded Systems Engineer with 12+ years of experience delivering consumer and industrial IoT products, including mixed-signal PCB design, high-speed interfaces, wireless systems (Wi-Fi/BLE), power electronics, and production firmware development. In my opinion, the success of this project depends on tightly coupling hardware architecture with firmware constraints from the very beginning. I will define a clean system-level design that balances MCU selection, power budgeting, storage, and wireless communication, then translate it into an EMI-aware PCB with proper grounding, impedance control, and manufacturability for mass production. 1️⃣ System architecture & design freeze: block diagram, MCU/SoC selection, power budget, storage and wireless definition, and risk analysis. 2️⃣ Schematic + PCB design: full Altium/KiCad layout with ERC/DRC-clean outputs, impedance-aware routing, and complete manufacturing files. 3️⃣ Prototype support & integration: fabrication support, bring-up guidance, hardware validation, and structured handover for firmware development. Via close collaboration, I will ensure the hardware platform is fully aligned with firmware requirements and ready for stable production scaling. Best regards. Maksym
€19 EUR in 7 days
0.0
0.0

Hello Thank you for sharing your project. I would be delighted to contribute as your Hardware Development Engineer and work closely with the firmware team to deliver a reliable, production-ready embedded IoT device. I have strong experience in embedded hardware design, including system architecture, component selection, mixed-signal and high-speed PCB design, power management, Wi-Fi/BLE integration, sensor interfaces, and manufacturing-ready PCB development using Altium Designer. My focus is on creating robust, cost-effective designs that are optimized for performance, reliability, and production. I can deliver each hardware milestone as outlined, including system architecture, schematic and PCB design, complete manufacturing files, prototype support, hardware bring-up assistance, and comprehensive documentation. Throughout the project, I will maintain clear communication and collaborate closely with the firmware team to ensure seamless hardware-software integration. I am committed to delivering high-quality work on schedule and would welcome the opportunity to discuss your technical requirements in more detail. I look forward to working with you and contributing to the success of your product. Kind regards,
€50 EUR in 10 days
0.0
0.0

Hello Thank you for sharing your project. I would be pleased to support the hardware development of your embedded IoT device and collaborate closely with the firmware team throughout the project. I have extensive experience in embedded hardware design, including system architecture, component selection, mixed-signal PCB design, power management, Wi-Fi/BLE integration, and production-ready PCB development using Altium Designer. I can deliver all hardware milestones, from architecture and schematic design to manufacturing files, prototype support, and hardware bring-up. I am committed to delivering high-quality work, maintaining clear communication, and meeting project milestones on schedule. I look forward to discussing your requirements and contributing to the success of your product. Kind regards,
€50 EUR in 10 days
0.0
0.0

Project Proposal for Francisco Technical Summary: * PCB Layout: High-density, multi-layer mixed-signal layouts (up to 8 layers). Experienced in integrating high-precision ADCs, DACs, and sensor arrays with strict impedance control and EMI-aware routing for DRC-clean designs. * RF & IoT: Deep experience in RF circuit design and layout optimization using ESP32-S3 and Nordic nRF52/nRF53 series for stable Wi-Fi/BLE. * Power Management: Expert in designing efficient power architectures using TI (Texas Instruments) power ICs, multi-rail design, and thermal analysis for mass production DFM/DFA. * Bring-up: Skilled in providing test point matrices and debug docs to collaborate with firmware engineers for fast verification. Timeline: * M1 (Architecture): 10 days * M2 (Schematic & PCB): 14 days * M5 (Handover): 7 days Deliverables: * Altium Designer schematic & PCB source files * Manufacturing files (Gerber, PnP, BOM) * System block diagrams & power budget matrix
€30 EUR in 31 days
0.0
0.0

Hi Francisco, I’m a senior professional specializing in electronic product development, hardware design, and embedded systems, with 20 years of experience taking products from concept to full-scale manufacturing. My background includes digital electronics, analog systems, 8bit, 16bit, and 32bit microcontrollers, Arduino, ESP32 platforms, Raspberry Pi, minimal embedded systems, and IoT device development. I focus on designing solutions that optimize both technical performance and financial efficiency, ensuring compliance with IPC standards and international quality regulations. My approach integrates robust engineering practices with practical manufacturing considerations to deliver reliable, scalable, and certification ready products. I would be pleased to collaborate on your development project. Best Regards
€20 EUR in 10 days
0.0
0.0

Hi, thank you for the opportunity to bid on your project. I'm an experienced embedded systems engineer with expertise in both hardware and software. I've developed ESP32 firmware, backend servers, frontends, and mobile apps for similar IoT projects in the past, so I can handle the full stack myself. you won't need to coordinate between separate people or worry about keeping their timelines in sync. Please come over to chat so we can discuss further I'd be happy to show you my previous work.
€22 EUR in 7 days
0.0
0.0

Hello Francisco, I have extensive experience in embedded hardware and firmware development for IoT products and can support the complete development cycle from system architecture through production-ready hardware and firmware integration. My expertise includes mixed-signal PCB design, Altium Designer, MCU/SoC selection, power management, Wi-Fi/BLE integration, sensor interfaces, firmware development, hardware bring-up, debugging, and manufacturing support. I follow structured milestone-based development and provide clear documentation throughout the project. I can deliver all required milestones, including system architecture, schematic and PCB design, manufacturing files, prototype support, firmware integration, validation, and final handover while maintaining close collaboration between hardware and firmware development to ensure a reliable production-ready device. I am committed to clear communication, meeting project timelines, and delivering a robust, manufacturable solution. I look forward to discussing your project in more detail. Best regards,
€40 EUR in 5 days
0.0
0.0

Garches, Greece
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