M.Zaeem Sarfraz
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IoT Hardware Design, PCB, and Firmware Development
I’m Zaeem, an Electronics and IoT Hardware Design Engineer with over 3 years of experience building smart, connected products for startups and companies worldwide. From the first schematic to a tested, manufacturing-ready PCB, I handle every stage of development with precision. Based in Vaasa, Finland, I run a fully equipped electronics lab where I design, solder, test, and deliver end-to-end IoT hardware solutions. I also work with international clients through Fiverr and Upwork as a Level 2 Seller, with 20+ projects completed globally. What I Offer: • PCB design in Altium, OrCAD and EasyEDA. • Multi-layer layout, SMT soldering, and debugging • ESP32, STM32, and Arduino-based IoT systems and others • Sensor integration and IoT protocol implementation • Firmware development in C++ and Python • Power optimization and battery management • End-to-end prototyping to production-ready hardware • Cloud and mobile app integration
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