FSS Technology

FSS Technology is a Polish IoT product development company based in Bielsko-Biała, Poland. It designs custom electronics and PCBs, develops embedded firmware, connects devices to cloud infrastructure, builds mobile applications and assembles PCBs in-house. Founded in 2011, FSS has 30+ engineers working across ESP32 and STM32 firmware, BLE, Wi-Fi, LoRa and LTE connectivity, Microsoft Azure IoT backends, native iOS and Android apps, and SMT/THT PCB assembly with AOI and X-ray inspection. FSS has delivered 100+ projects, with 5,000+ devices running worldwide and zero failed deployments. Besides client work, FSS builds its own connected products, including Perrugi (smart access control) and ReDrive (a 20 Hz GPS lap timer).