GNC Architect - Spacevan GEO

GNC Architect - Spacevan GEO

Exotrail

Massy or Toulouse, France

Job Description

As a GNC Architect, you will be responsible for the definition, performance, and robustness of the GNC chain of a GEO OTV. You will make key technical decisions, lead trade-off analyses, and ensure the GNC architecture's consistency with mission requirements, while ensuring compliance with ECSS and NPR standards.

Your main tasks will GNC

• Design the GNC architecture in line with system and mission requirements;
• Manage technical trade-offs: sensors, actuators, flight modes, robustness;
• Define the strategy for managing anomalies, mode transitions, and mission autonomy;
• Oversee the development of simulation models, control laws, and GNC tools;
• Ensure the consistent integration of the GNC chain with the avionics, propulsion, embedded software, and AIT subsystems;
• Participate in design reviews (PDR, CDR), functional validations, and test campaigns.

Preferred Experience

Exotrail is looking for an engineer with hands-on experience in all the phases of a space project. Typically, the candidate worked on small satellites projects and oversaw the development, assembly and tests of the satellite from end-to-end.

• Proven experience (minimum 8 years) in the space AOCS/GNC field, with a systems approach;
• Mastery of ECSS standards (notably E-60, E-60-10) and NPR 7123.1;
• Very good knowledge of embedded systems, orbital guidance, hybrid navigation, and attitude control;
• Proficiency with modeling tools: Matlab/Simulink, Orekit, GMAT, Python, or C++;
• Ability to clearly formalize technical decisions, structure architectures, and lead a multidisciplinary team;
• Rigorous, autonomous, solution-oriented, and with a strong sense of synthesis.

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