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About the Role

Lead the development, analysis, and optimisation of advanced propulsion systems for next-generation space missions, demanding deep technical expertise, strong systems thinking, and the ability to drive complex engineering programmes from concept through qualification.

Responsibilities

• Own the architecture, modelling, and performance analysis of chemical and electric propulsion systems.
• Guide multidisciplinary teams, review critical designs, and ensure technical coherence across propulsion activities.
• Define test plans, support integration, and lead performance verification campaigns.
• Oversee external partners delivering propulsion hardware and ensure compliance with requirements.
• Provide propulsion expertise for mission analysis, system trades, and operational readiness.

Requirements

• Proven background in spacecraft propulsion or closely related space systems.
• Strong capability in thermodynamics, fluid dynamics, and system modelling.
• Hands-on experience from concept design through qualification and flight.
• A Bachelor’s or Master’s degree in Engineering, or equivalent military experience.
• Experience with electric propulsion, cold-gases systems, or green propellants.
• Ability to work across GNC, structures, avionics, and mission operations.
• Expertise with CFD, thermal-fluid simulation, or multi-physics modelling.
• Comfortable with vacuum chamber testing, leak checks, and performance characterisation.
• Experience in fast-paced development cycles, rapid prototyping, or on-orbit servicing missions.
• Ability to clearly present propulsion concepts to internal and external stakeholders.
• May require willingness to go through Security Clearance.
• Candidates will be asked to complete a Baseline Personnel Security Standard.

Skills

• Propulsion system design
• Technical leadership
• Test and validation
• Supplier management
• Mission support
• Propulsion analysis
• Space hardware lifecycle
• Thruster development
• System-level integration
• Advanced modelling tools
• Hands-on test operations
• New-space environment
• Technical communication

Location

• London

Work Type

• On Site: 1-2x a month
• Permanent

Experience Level

• Mid - Senior

Education Level

• Bachelor’s or Master’s degree in Engineering, or equivalent military experience.

Benefits

• Private Medical Insurance
• Cycle & Tech Scheme
• Employee assistance programme
• Life insurance & Pension Scheme
• Social atmosphere, regular gatherings & team buildings
• Flexible way of working (role dependent)

About the Company

• ALTEN is a global engineering and technology consultancy operating across over 35 countries worldwide.
• We partner with industry leaders across sectors including Aeronautics, Aerospace, Defence, Naval, Energy, Rail, IT and many more to deliver innovative engineering solutions that drive technological advancement & support sustainable transformation.
• Our teams of passionate and agile engineers work on cutting-edge projects that shape the future of technology and sustainability.
• At ALTEN, we empower talented engineers to innovate, solve complex challenges, and deliver impactful solutions that build tomorrow’s world—today.
• Join us and start building tomorrow’s world today!

Equal Opportunity

• We are proud to support the Armed Forces Covenant & actively encourage applications from members of the Armed Forces community, including veterans, reservists, service leavers, and military spouses/partners.
• We recognise the value of military skills and experience and are committed to ensuring that no applicant is unfairly disadvantaged during our recruitment and selection processes.
• ALTEN is committed to fostering a diverse and inclusive workplace and values the strength that comes from a global mix of backgrounds and perspectives.
• We welcome applications from all suitably qualified candidates, regardless of background or protected characteristics under the Equality Act 2010.
• If you require any reasonable adjustments during the recruitment process, please let us know.