Senior Mechanical & Thermal Engineer – NewSpace

About the role

We are looking for a senior mechanical and thermal engineer to lead the Thermomechanical team of a well‑funded NewSpace company in Luxembourg. The role combines hands‑on design, analysis and testing of space‑qualified hardware with departmental ownership.

Key responsibilities

• Design, analyse, procure, assemble and test mechanical parts and mechanisms for space and ground terminals and ground support equipment.
• Develop mechanical and thermal requirements aligned with system‑level specifications.
• Manage the mechanical and thermal department, including task clarification, verification and team development.
• Perform mechanical and thermal finite‑element analysis and collaborate with interdisciplinary teams.
• Support testing and validation activities and prepare technical documentation, system design definitions and interface control documents.

Required profile

• Significant professional experience in space mechanical and thermal engineering.
• Hands‑on experience with mechanical and thermal finite‑element analysis.
• Familiarity with ECSS standards.
• EU citizenship and fluent English.

Required skills

• Mechanical design and analysis.
• Thermal analysis and design.
• Finite‑element analysis (FEA) for mechanical and thermal problems.
• Knowledge of ECSS standards.
• Design of space optical systems and mechanisms.
• Manufacturing and testing of space hardware.
• Clean‑room experience.

What we offer

• Competitive salary €80,000‑120,000 per year.
• 50 % tax relief for relocators to Luxembourg and a €2,000 moving allowance.
• 29 days paid holiday, lunch vouchers and training/conference participation.
• Flexible working hours in a collaborative, international team.
• Opportunity to own and develop the mechanical and thermal function within an ambitious NewSpace programme.