STM32/ESP32 Embedded & Hardware Engineer | IIoT Firmware + PCB Design
I help companies, startups, and individual clients build reliable STM32/ESP32-based embedded and IIoT products, covering both firmware and hardware — from concept to production-ready systems.
My core expertise is STM32/ESP32 firmware development in C / Embedded C using FreeRTOS, combined with schematic and PCB design for connected devices (power, MCU, sensors, relays, and interfaces).
I focus on stable, production-grade systems with attention to power integrity, real-time behavior, connectivity reliability, and edge-case handling.
Typical deliverables:
– STM32/ESP32 firmware (FreeRTOS, Wi-Fi, BLE, MQTT)
– Hardware-aware firmware (startup, brown-out, watchdogs, EMI considerations)
– Schematic & PCB design ready for manufacturing
– Clean, maintainable code and documented designs suitable for long-term products
In parallel, I am actively expanding projects using Nordic nRF (BLE), and Raspberry Pi, applying the same system-level engineering principles to new platforms.
If you need someone who can own both hardware and firmware, communicate clearly, and deliver something you can actually ship, let’s discuss your project.
Dragos Tudor H. earns an estimated $5.6k/mo. That's 3.7× the typical freelancer and more than 99.6% of everyone we track.