Embedded Systems Engineer

OPUS Aerospace; Brétigny-sur-Orge; Hybride; EUR 45 000 - 70 000; Plein temps

Avantages offerts par ce poste

Stock options BSPCE

Meal vouchers Swile

Health insurance Alan

Remote work 1 day/week

Exposure to defense and civil space

Résumé du poste

OPUS Aerospace in Brétigny-sur-Orge is developing the Mésange supersonic sounding rocket for dual-use space and defense. The role focuses on defining avionics architecture, developing real-time embedded software, and contributing to system integration and test campaigns.

You will read PCB schematics, work with CAN bus/SpaceWire/RS-422, and use Python for test automation, in an international team environment. A Master’s in embedded systems and 3+ years in aerospace is preferred.

Qualifications

• Engineering degree or Master’s in embedded systems/electronics/control systems.
• At least 3 years of experience in aerospace/defense or similar demanding industry.
• Proficiency in real-time embedded software development (C/C++, RTOS) and tools (Git, Jenkins, MATLAB/Simulink).
• Knowledge of avionics architectures (CAN bus, SpaceWire, RS-422) and standards (DO-178, ECSS-E-ST-40).
• Familiar with I2C, SPI, UART and Ethernet; Python for test automation is a plus.
• English proficiency in an international team.

Responsabilités

• Define avionics architecture for Mésange and future evolutions (hardware/software).
• Develop and qualify real-time embedded software; support verification, validation, and traceability.
• Read PCB schematics and participate in system integration.
• Implement integration and test processes for electronic systems; participate in test campaigns.
• Engage with clients on avionics topics and contribute to reviews and deliverables.
• Write and maintain design/interface/test documentation.

Connaissances

Real-time embedded software

English proficiency

PCB schematics reading

System integration

Python

Formation

Engineering degree or Master’s in embedded systems/electronics/control systems

Outils

Git

Jenkins

MATLAB/Simulink

CAN bus

SpaceWire

RS-422

I2C

SPI

UART

Ethernet

OPC UA

Description du poste

OPUS Aerospace is a start-up founded in 2020, positioned at the crossroads of space and defense, based in Brétigny-sur-Orge on the former Air Base 217, developing sounding rockets for very high altitude up to the edge of space, dedicated to dual-use applications.

Through Mésange, its supersonic sounding rocket, the company addresses defense applications such as aerial threat representation, qualification of detection and interception systems, and armed forces training, as well as civil missions such as microgravity experiments, upper atmosphere research, and qualification of space technologies in a real flight environment.

As it prepares for Mésange's first flight, OPUS Aerospace is building, brick by brick, a sovereign and disruptive capability.

Responsibilities & Requirements

• Contribute to defining the avionics architecture of Mésange and its future evolutions (hardware and software); contribute to criticality analyses and system requirements allocation,


• Develop and qualify real-time embedded software; contribute to verification, validation, and requirements traceability documentation,


• Ability to read PCB schematics and other circuit designs, write embedded code, and participate in system integration,


• Implement integration and test processes for electronic systems; participate in test campaigns on the Brétigny test bench, with internal teams or externally with partners,


• Contribute to technical exchanges with clients on avionics topics and participate in project reviews and associated technical deliverables,


• Write and maintain technical documentation (design files, interface notes, test and qualification plans).


• Engineering degree or Master's in embedded systems, electronics, control systems, or an equivalent discipline.


• You have at least 3 years of experience in an aerospace, defense, or other demanding industrial environment, ideally with exposure to flight systems or launch vehicles.


• Proficiency in real-time embedded software development (C/C++, RTOS) and associated tools (Git, Jenkins, modeling tools such as MATLAB/Simulink or equivalent).


• Knowledge of avionics architectures (CAN bus, SpaceWire, RS-422), inertial navigation systems, and applicable standards (DO-178, ECSS-E-ST-40 or equivalent MIL) is a plus.


• Knowledge of standard embedded communication protocols (I2C, SPI, UART) and Ethernet networking, with the ability to design, integrate, and troubleshoot data exchanges across avionics systems.


• Familiarity with the OPC UA protocol is a plus, combined with a genuine appetite for Python to support test automation, data processing, and tooling within avionics integration environments.


• Working within an international team, technical proficiency in English is essential. Knowledge of another language would be a plus.

What We Offer

• Package including BSPCE (stock options)


• Meal vouchers via Swile


• Health insurance through Alan


• One day of remote work per week


• Direct exposure to both defense and civil space programs, with real flight hardware working hands-on toward Mésange's first flights