Senior Embedded Firmware Engineer

Stack

Responsibilities

• ▹Develop firmware for safety components and communication modules
• ▹Design and improve communication between two MCUs
• ▹Work on real-time logic, state machines and error handling
• ▹Create and maintain hardware drivers (UART, SPI, I2C, GPIO)
• ▹Design and develop wireless communication systems (BLE onboarding, provisioning, data exchange)
• ▹Ensure stable backend communication via OCPP over WebSocket (or similar device-cloud protocols)
• ▹Work on OTA and system resilience in production (rollback, recovery, update security)
• ▹Low-level debugging with professional tools (JTAG, SWD, logic analyzers)
• ▹Design APIs and communication layers between system modules

Requirements

• ▹Very good knowledge of C/C++ in embedded systems
• ▹Experience with MCUs (e.g. STM32, nRF, ESP32 or similar)
• ▹Knowledge of UART, SPI, I2C and BLE (or other wireless) protocols
• ▹Experience designing embedded systems (architecture, not just implementation)
• ▹Ability to debug HW/SW systems (JTAG, SWD, system logs)
• ▹Experience designing interfaces and APIs between system components

Nice to have

• ▹Secure embedded systems experience (device identity, secure update concepts, integrity, tamper resistance)
• ▹OTA / bootloader experience (rollback, recovery, update safety)
• ▹RTOS knowledge (FreeRTOS, Zephyr or others)
• ▹Device-to-backend communication (WebSocket, MQTT, REST)
• ▹Automotive or industrial embedded background
• ▹Knowledge of provisioning / fleet management systems and BLE onboarding
• ▹OCPP experience
• ▹Zephyr RTOS
• ▹Embedded Linux (Buildroot / Yocto)

What we offer

• ▹100% remote work from anywhere
• ▹B2B: up to 8,000 EUR net per month
• ▹Flexible working hours
• ▹Work with an experienced system/firmware team
• ▹Real influence on product architecture and direction