Expert System Engineer M/F

SIRIUS SPACE SERVICESHauts-de-SeineEURESpublished 01/13/2026
Must-have:Python
Machine translation — original language: French.Show original

As part of the development of its launcher, Sirius Space Services wishes to recruit a System Expert to define the Onboard systems of Sirius launchers.

Within the System department, your missions and responsibilities will be as follows:

  • Analyze High-Level Requirements and operational scenarios,
  • Define subsystem scopes and environment diagrams, and analyze interfaces (fluidic, electrical, mechanical, RF),
  • Conduct functional analyses and define the service functions of systems and subsystems (preliminary calculations may need to be implemented),
  • Participate in architecture trade-offs with Mission Analysis, in-flight backup, SDF, and with various disciplines (propulsion, GNC, structure, Ground System ...),
  • Participate in the breakdown of specifications towards the organic architecture with the help of the disciplines, and participate in organic allocations,
  • Enter the defined functions into MBSE systems and update them throughout the project life,
  • Responsible for compliance with space laws and carrying files for national authorities.
  • Write the technical documentation associated with development.

Graduate of an engineering school or a master's degree in systems engineering with at least 7/8 years of:

  • Knowledge of environments related to space launchers is an asset,
  • A good understanding in your approach to ground segment and launch base aspects,
  • Good knowledge in programming (Python, MATLAB or equivalent),
  • Ability to work in a team and autonomously,
  • Mastery of English (reading, writing, speaking).