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System Architect | Spacecraft Mission Design | London
At ALTEN, we shape the future of technology and sustainability through innovative engineering solutions.
Join us as a System Architect on a major spacecraft mission in London, leading the technical architecture of a cutting-edge space platform.
About the Role
We are seeking an experienced System Architect to define and oversee the end-to-end system design of a major spacecraft mission within the space sector. You will shape the architecture to ensure seamless integration of all subsystems into a mission-ready, reliable, and high-performance platform.
- Location: London
- On-Site Requirement: 1–2 times a month
- Clearance: Clearable
- Experience Level: Mid to Senior
Key Responsibilities
Your role will involve:
- Defining the overall spacecraft architecture, ensuring alignment with mission objectives, constraints, and performance requirements.
- Leading the development of system-level concepts, including functional breakdowns, subsystem interactions, and high-level design flows.
- Ownership and maintenance of the technical baseline, ensuring consistency across electrical, mechanical, RF, software, thermal, and payload domains.
- Producing and managing system specifications, architectural documentation, and interface definitions.
- Driving trade-off analyses to evaluate design options across performance, reliability, mass, power, and cost.
- Supporting risk identification and mitigation strategies while influencing mission reliability decisions.
- Overseeing system-level verification and validation, ensuring the architecture is fully testable and compliant.
- Collaborating with Acceptance & Integration Testing (AIT), mission operations, and engineering teams to maintain architectural consistency throughout development.
- Providing senior technical leadership, mentoring engineers, and shaping long-term architectural strategy.
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Qualifications & Experience
Required Skills
- Direct involvement in spacecraft architecture, satellite systems, or mission-critical space hardware within the industry.
- Proven experience defining system architectures for complex aerospace or space platforms.
- Strong understanding of subsystem domains—electrical, mechanical, RF, software, thermal, payload.
- Ability to produce system-level documentation, specifications, and architectural models.
- Strong analytical skills, particularly in trade studies, risk analysis, and architectural decision-making.
- Experience coordinating across multidisciplinary engineering teams to drive system cohesion.
- Familiarity with system-level verification, validation, and design reviews.
Required Qualifications
- A Bachelor’s or Master’s degree in Engineering, or equivalent military experience.
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Desirable Skills (Bonus)
- Knowledge of ECSS (European Cooperation for Space Standardisation) or similar space-industry standards.
- Experience with Model-Based Systems Engineering (MBSE) tools or architectural frameworks.
- Understanding of spacecraft AIT workflows and system-level testing.
- Familiarity with mission analysis, operations concepts, spacecraft modelling, and behavior analysis.
- Exposure to configuration control, change management, and baseline evolution.
- Contribution to long-term architectural roadmaps or multi-mission system strategies.
Why Join ALTEN?
- Cutting-edge projects across diverse industries.
- Learning & mentorship for career progression.
- Flexible working (role-dependent).
- Attractive benefits:
- Personalised career path & rewarding management.
- Private Medical Insurance.
- Cycle & Tech Scheme.
- Employee Assistance Programme.
- Life Insurance & Pension Scheme.
- Social events, team buildings, and a positive work atmosphere.
- Diverse projects spanning Aerospace, Defence, Energy, Rail, IT, and more.
ALTEN is committed to diversity, inclusion, and equality. We welcome applications from all qualified candidates and offer reasonable adjustments during recruitment. This role may require a ** Baseline Personnel Security Standard (BPSS)** clearance.
Apply now and help build tomorrow’s innovations today!
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