Mechanical GNC Design Engineer (ADCS) - Ingénieur Conception Mécanique GNC (ADCS)

GTS Space is working with a global satellite technology company based in Toulouse, at the heart of Europe’s space ecosystem. They need a Mechanical GNC Design Engineer to design next generation Attitude Determination and Control Systems.

About the Company

Our mission is to develop next-generation spacecraft platforms delivering high-performance, reliable, and efficient solutions for commercial and institutional missions.

As part of our continued growth, we are seeking a Mechanical GNC Design Engineer to support the development of advanced attitude control hardware , with a strong focus on reaction wheels (momentum wheels) within satellite Guidance, Navigation, and Control (GNC) systems.

Role Overview

You will play a key role in the mechanical design, analysis, and validation of reaction wheel assemblies , a critical actuator within the Attitude Determination and Control System (ADCS) . These systems enable precise satellite orientation control without propellant, directly impacting mission performance and reliability.

You will work at the intersection of mechanical engineering, dynamics, and GNC , collaborating closely with multidisciplinary teams across systems, electronics, and software.

Key Responsibilities

• Design and develop reaction wheel / momentum wheel assemblies for satellite platforms
• Perform mechanical design, structural analysis, and thermal assessments of rotating machinery
• Analyse rotordynamics, imbalance, vibration, and bearing performance
• Support GNC integration , ensuring actuator performance meets pointing and stability requirements
• Define and manage requirements, interfaces, and verification plans for ADCS hardware
• Lead or support environmental testing (vibration, thermal vacuum, shock)
• Conduct failure analysis and reliability assessments for long-duration space missions
• Collaborate with suppliers and manufacturing teams for precision components and assemblies

Required Qualifications & Experience

• Degree (MSc/PhD preferred) in Mechanical Engineering, Aerospace Engineering, or related field
• Proven experience in satellite GNC / ADCS hardware development
• Strong hands‑on experience with reaction wheels / momentum wheels / flywheel systems
• Solid understanding of:
• Rotating machinery and rotordynamics
• Precision mechanical design and tolerancing
• Vibration and dynamic analysis
• Experience working within space industry standards (ECSS or equivalent)
• Familiarity with system‑level GNC requirements and spacecraft dynamics
• Experience with magnetic bearings or high‑speed electric motors
• Experience with finite element analysis (FEA) and multibody simulation tools
• Background in cleanroom assembly and space qualification processes
• Understanding of momentum management and desaturation strategies

What We Offer

• Opportunity to work on cutting‑edge space missions and technologies
• Collaborative environment within Toulouse’s leading aerospace hub
• Competitive salary and benefits package
• Career development in a rapidly growing satellite company

Apply Now

If you are passionate about spacecraft dynamics and precision engineering, and want to play a key role in shaping the future of satellite technology, we would love to hear from you.

Apply now for the Mechanical GNC Design Engineer – ADCS in Toulouse, France.