Hire the Best Consumer Electronics Freelancers
in India

Turning Hardware Concepts into Market-Ready, Scalable Products The biggest risk in hardware is a "prototype that works" but cannot be manufactured. A single PCB error or a poor component choice can lead to months of delays and thousands in wasted capital. I help startups and product teams bridge the gap between a breadboard idea and a professional, factory-ready product. With experience in high-stakes industries like Medical Devices and Electric Vehicles (EV), I design for reliability, not just functionality. How I add value to your project: DFM-First PCB Design: I don't just "route traces." I optimize for Design for Manufacturing (DFM) using Altium and KiCad to ensure your boards are easy to assemble and cost-effective. Embedded Intelligence: Specialist in ESP32, STM32, and nRF52 architectures for low-power wearables and complex IoT systems. Medical & Industrial Rigor: My background includes designing TENS/NMES medical spray systems and EV hardware for Baaz Bikes, ensuring your product meets industry standards from day one. Risk Mitigation: I provide detailed Schematic and BOM (Bill of Materials) reviews to catch errors before they hit the fabrication house. Technical Toolkit: Hardware: PCB Layout, Multi-layer Design, Rigid-Flex, Signal Integrity. Firmware: Arduino, C/C++, IoT Cloud Integration, Sensor Fusion. Compliance: Designing for EMI/EMC and medical safety standards. My Commitment: I prioritize clear communication and document every step of the design process. Whether you need a quick schematic review or a full-scale product development partner, I am here to ensure your hardware is robust.

⚒ Key Services: ✅ Circuit and PCB design from scratch (Altium / EasyEDA ) ✅ Circuit Simulation ( LTspice ) ✅ BOM optimization ✅ Prototyping ✅ PCB mass production and assembly management ✅ Design consulting for reliable and Cost-effective electronic hardware Hello there! Being passionate about engineering since childhood helped me to learn and enjoy the electronics principles right from childhood. Taking my bachelor's in electronics engineering made me pretty confident with my skills and practically working with clients from all over the globe made me a preferred freelancer of many startups and companies. Since you are here, I probably have written you an engaging proposal on your job posting. I request you to message me so we can collectively discuss your queries and confusions, preferably over a call. I'd love to hear from you and help you get your idea into a manufacturable design that will make this world a better place to live in.

I am a Mechatronics Engineer (M.Eng, UK) with over 5 years of professional experience in embedded systems, PCB design, electrical design, and product development. I specialize in taking products from concept through to manufacturing, including electrical architecture, schematic capture, PCB layout, firmware integration, validation, and documentation. My background in regulated Pharma and Life Sciences environments has required rigorous attention to documentation control, verification, validation, traceability, and data accuracy—skills that translate naturally to technical QA, structured data review, and research-based projects. Core Capabilities: - Multi-layer PCB design (signal integrity, power integrity, DFM) - Schematic capture and electrical architecture definition - Embedded C/C++ firmware development - MCU platforms and communication interfaces - Hardware debugging, board revision, and validation - Component selection and cost optimization - Manufacturing documentation and production packages My work is structured, well-documented, and ready for fabrication and assembly. Additional Support I Offer: Alongside engineering work, I also support clients with structured data, documentation, and QA-focused tasks, especially where technical understanding and attention to detail are important: - Technical documentation & formatting (reports, specifications, datasheets, Word) - Excel-based data handling (structured datasets, validation, clean-up) - Data verification, quality assurance, and discrepancy identification - Online research & data collection (market research, event databases) - Organizing, auditing, and reviewing information for accuracy, consistency, and completeness How I Work: - Strong focus on accuracy, consistency, and reliability - Careful verification and validation of information (not blind copy-paste or unverified AI output) - Ability to identify discrepancies, missing information, and data-quality issues - Ability to handle both analytical engineering tasks and repetitive structured work efficiently - Clear communication with regular progress updates Having worked in structured UK engineering environments, particularly in Pharma and Life Sciences, I am comfortable operating under formal documentation control, milestone-driven delivery, and confidentiality requirements. If you need someone who can deliver robust engineering solutions or review technical information and structured data with precision, I can support your project reliably.

🚀 Top Rated Plus | ESP32 & STM32 Firmware Developer | Embedded Systems & IoT Engineer | 6+ Years Experience Looking for an experienced Embedded Firmware Developer who can turn your idea into a reliable, production-ready product? I'm a Top Rated Plus Embedded Systems & IoT Engineer with over 6 years of experience developing embedded firmware, designing custom hardware, and building IoT products for startups, SMBs, and enterprise clients worldwide. I specialize in: • ESP32 Firmware Development • STM32 Firmware Development • Embedded C & C++ • ESP-IDF • FreeRTOS • BLE • MQTT • IoT Product Development • PCB Design • LVGL • TouchGFX • AWS IoT I provide complete end-to-end engineering services, from hardware design and firmware development to cloud connectivity, GUI development, testing, and production support. ━━━━━━━━━━━━━━━━━━━━━━ WHY CLIENTS HIRE ME ━━━━━━━━━━━━━━━━━━━━━━ • Top Rated Plus Freelancer with a proven track record • Production-Ready Firmware • Clean, Maintainable & Well-Documented Code • Fast Communication & Daily Progress Updates • Strong Debugging & Problem Solving Skills • End-to-End Product Development • Long-Term Technical Support ━━━━━━━━━━━━━━━━━━━━━━ FIRMWARE DEVELOPMENT ━━━━━━━━━━━━━━━━━━━━━━ Programming Languages • C • C++ • Python Expertise • Embedded Firmware Development • Bare-Metal Programming • FreeRTOS • Zephyr RTOS • ESP-IDF • STM32Cube • Arduino Framework • PlatformIO • Mbed OS • Bootloader Development • Secure Boot • OTA Firmware Updates • Device Driver Development • Memory Optimization • Low Power Design • Firmware Optimization ━━━━━━━━━━━━━━━━━━━━━━ MICROCONTROLLERS ━━━━━━━━━━━━━━━━━━━━━━ Espressif • ESP32 • ESP32-S2 • ESP32-S3 • ESP8266 STMicroelectronics • STM32F0 • STM32F1 • STM32F3 • STM32F4 • STM32H7 • STM32WB • STM32U5 Nordic • nRF51 • nRF52 Microchip • PIC12 • PIC16 • PIC18 • PIC24 • dsPIC30 • dsPIC33 • PIC32MX • PIC32MK • PIC32MZ ━━━━━━━━━━━━━━━━━━━━━━ COMMUNICATION PROTOCOLS ━━━━━━━━━━━━━━━━━━━━━━ • UART • USART • SPI • I²C • I²S • CAN Bus • USB (CDC, HID, DFU, MSC) • Ethernet • RS485 • Modbus RTU • Modbus TCP • OneWire • ADC • DAC • PWM • SD Card • SDMMC ━━━━━━━━━━━━━━━━━━━━━━ WIRELESS & CONNECTIVITY ━━━━━━━━━━━━━━━━━━━━━━ • Bluetooth Low Energy (BLE) • WiFi • MQTT • HTTPS • WebSockets • LoRa • LoRaWAN • Cellular (4G/5G) • Zigbee • Z-Wave Cellular Modems • SIM7600 • EC25 • EC200U • A7672 Series ━━━━━━━━━━━━━━━━━━━━━━ CLOUD & IoT ━━━━━━━━━━━━━━━━━━━━━━ • AWS IoT Core • Google Cloud • MQTT Brokers • REST APIs • HTTPS • WebSockets • Remote Device Management • Secure Device Provisioning • OTA Firmware Updates ━━━━━━━━━━━━━━━━━━━━━━ GUI DEVELOPMENT ━━━━━━━━━━━━━━━━━━━━━━ • LVGL • TouchGFX • Qt for MCUs Experience • Animated User Interfaces • Touchscreen Applications • Dashboards • TFT Displays • OLED Displays • E-Ink Displays • Capacitive Touch • Resistive Touch ━━━━━━━━━━━━━━━━━━━━━━ HARDWARE & PCB DESIGN ━━━━━━━━━━━━━━━━━━━━━━ Tools • Altium Designer • KiCad Services • Schematic Design • PCB Layout • Prototype Development • Hardware Bring-up • Design for Manufacturing (DFM) • Production Support ━━━━━━━━━━━━━━━━━━━━━━ INDUSTRIES ━━━━━━━━━━━━━━━━━━━━━━ • Industrial Automation • Consumer Electronics • Medical Devices • IoT Products • Smart Home • EV & Automotive Electronics • Wireless Products • Energy Monitoring • Sensor Networks ━━━━━━━━━━━━━━━━━━━━━━ SERVICES I OFFER ━━━━━━━━━━━━━━━━━━━━━━ • ESP32 Firmware Development • STM32 Firmware Development • Embedded C/C++ Development • ESP-IDF Development • FreeRTOS Development • BLE Firmware Development • MQTT IoT Development • Device Driver Development • Bootloader Development • OTA Firmware Updates • PCB Design • Hardware Design • Embedded GUI Development • LVGL Development • TouchGFX Development • Cloud Integration • Firmware Debugging • Performance Optimization • Legacy Firmware Modernization • Complete IoT Product Development If you're looking for an ESP32 Firmware Developer, STM32 Firmware Developer, Embedded Systems Engineer, or IoT Firmware Expert who delivers reliable, production-ready solutions, I'd love to discuss your project. Let's build something amazing together! Best Regards, Haresh Sondagar Embedded Systems & IoT Engineer

💯 100% Job Success | 💲 $80K+ Earned | 70+ Projects Completed ✅ 10+ Years of Embedded Systems Experience ✅ Top Rated Freelancer on Upwork ✅ 100% Job Success Score ✅ $80K+ Earned | 2,600+ Hours Worked ✅ End-to-End Product Development Support ✅ Hardware + Firmware + IoT + Software Team Support I help startups, founders, and businesses design and develop reliable, cost-effective, and production-ready embedded products. My core expertise is in embedded hardware design, PCB design, and firmware development. Since 2013, I have worked on a wide range of products in industrial automation, IoT, wireless systems, energy products, smart devices, and consumer electronics. While hardware is my primary specialization, I also provide embedded software, mobile app, web dashboard, and backend development support through my team of engineers. This allows clients to work with one reliable partner for complete end-to-end product development. ✅ Why Clients Work With Me 10+ years of experience in embedded product development Strong expertise in hardware + firmware co-development Hands-on experience with production-ready PCB design Support from prototype stage to final product Clear communication and practical engineering approach Long-term project support and reliable execution ✅ Core Services Embedded hardware design Schematic design PCB design and layout Firmware development in C Board bring-up and debugging Wireless and IoT product development Prototype to production support Mobile and web applications for connected products ✅ Hardware & PCB Design Expertise 2-layer, 4-layer, and 6-layer PCB design Compact, low-cost, and manufacturable board design Analog and high-speed PCB design Hardware debugging and optimization Product redesign and cost optimization ✅ Embedded Systems & Firmware Expertise Worked with 8-bit, 16-bit, and 32-bit microcontrollers from: Texas Instruments Microchip / Atmel STMicroelectronics NXP Espressif Nordic Semiconductor Strong hands-on experience with: UART I2C SPI ADC / DAC RTC Timers MMC and related interfaces ✅ Wireless Technologies Bluetooth Low Energy (4.0 / 4.2 / 5) Wi-Fi Zigbee MiWi GSM (2G / 3G / 4G) GPS Sub-GHz RF ✅ End-to-End IoT Development Along with hardware and firmware, I also support complete IoT ecosystem development through my team, including: Android and iOS mobile apps Web dashboards Backend / server development Cloud-connected IoT systems ✅ Industries & Solutions I have worked on products related to: Industrial automation IoT and connected devices Smart agriculture Energy and power systems EV charging solutions Fuel / gas dispensing systems Consumer electronics Wireless embedded products Whether you need PCB design, embedded hardware, firmware development, wireless integration, or a complete IoT solution, I can help turn your idea into a reliable working product.

I am a CAD designer with skills in 3D design and 3D printing, working with industries like engineering and manufacturing. I use top software like SolidWorks, Fusion 360, Blender, ZBrush and KeyShot to create accurate and high-quality designs. 🔹 3D Printing Expert I create ready-to-print 3D models with the accurate size and settings to ensure smooth printing. Whether you need functional parts, prototypes or artistic designs, I make sure they print well on FDM and SLA/Resin printers. 💡 If your model is too big for your printer, I can split it into smaller parts for easy assembly while keeping it strong. I will also adjust the design to fit your printer’s bed size (for example, 220 mm X 220 mm X 250 mm), so it prints efficiently with fewer supports. What I Can Do for You: ✔ 3D Printing & Prototyping – Ready-to-print models with the best settings ✔ Product Development – Development of product as per Inputs given. ✔ 2D Design & Drafting – Clear technical drawings and blueprints ✔ 3D Modeling & Rendering – Realistic 3D visuals for products and concepts ✔ CAD Conversion – Turning sketches, PDFs, and old files into digital designs ✔ 3D Texturing – Adding details to make 3D models look more realistic Let’s work together to bring your ideas to life with expert 3D design and printing solutions! Message me, and let’s talk about your project.