Piyush S.

💯 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.