Senior Firmware Developer (Embedded)

TL;DR

Senior Firmware Developer (C/C++): Designing and developing low-level embedded software for microcontroller-based systems with an accent on real-time control, signal processing, and embedded communication. Focus on bare-metal development for ARM architectures, hardware bring-up, and translating system-level requirements into firmware specifications.

Location: Luxembourg

Company

Independent technology consulting firm providing guidance and solutions across Information Systems, Telecom, Life Sciences, and Engineering.

What you will do

• Translate system-level requirements into detailed firmware specifications and software design requirements.
• Develop bare-metal firmware for MCU-based systems, including bootloaders, drivers, and low-level service layers.
• Implement real-time application logic such as control state machines, signal processing algorithms, and waveform generation.
• Debug embedded systems using lab equipment (oscilloscopes, logic analyzers) in collaboration with electronics engineers.
• Maintain clean, well-structured code under version control (Git) and produce technical documentation.
• Collaborate with cross-functional teams including electronics, mechanical, and optical engineering.

Requirements

• Minimum 6 years of experience in firmware and embedded software development.
• Strong proficiency in C and C++.
• Hands-on experience with ARM-based microcontrollers (e.g., STM32) and embedded processors (e.g., NVIDIA Orin).
• Proven experience in bare-metal development for ARM architectures.
• Strong understanding of embedded communication protocols: I2C, SPI, UART, and CAN.
• English: Fluent (C1).
• Experience in the defense industry.

Nice to have

• Experience in real-time operating systems (RTOS).
• Knowledge of signal processing or control systems.
• Exposure to safety-critical or regulated development environments.

Culture & Benefits

• International community with over 110 different nationalities.
• Robust training system through an internal Academy with 250+ modules.
• Strong internal growth culture where 70% of key leaders started at entry level.
• Vibrant workplace with frequent internal events, afterworks, and team buildings.
• Opportunity to lead social or environmental impact projects via the WeCare Together program.

Hiring process

• Brief virtual or phone conversation to discuss motivations and background.
• Average of 3 interviews with line managers and future teammates.
• Technical assessment or case study depending on the role requirements.