Senior Space Mission Concept Engineer — Proposals

Open Cosmos Ltd; East Hagbourne; On-site; GBP 75,000 - 120,000; Full time

Job summary

Open Cosmos Ltd is seeking a Senior Mission Concept Engineer to lead the definition and development of advanced space mission concepts from initial customer discussions through to fully formed proposals.

You will drive mission architectures across space, ground and launch segments, while collaborating with engineering, project management and commercial teams to ensure technical credibility and delivery realism. Remote-friendly role with global customers.

Qualifications

• Experience defining and analysing complex missions (e.g. constellation sizing, orbital analysis, payload integration).

Responsibilities

• Lead the design of complex missions across Earth observation, telecoms, and technology demonstration.
• Define mission architectures across space, ground, and launch segments.
• Engage directly with customers to refine requirements and shape solutions.
• Lead or contribute to proposal development with technical credibility and cost realism.
• Support consortium definition and partnerships across the value chain.
• Contribute to early-stage mission shaping, feasibility assessments, and concept iteration.
• Mentor teammates and evolve Open Cosmos’ mission design capabilities and roadmap.

Skills

Mission design

Stakeholder engagement

Proposal development

Mentoring

Cross-functional collaboration

Analytical thinking

Job description

Open Cosmos Ltd is seeking a Senior Mission Concept Engineer to lead the definition and development of advanced space mission concepts from initial customer discussions through to fully formed proposals.

You will drive mission architectures across space, ground and launch segments, while collaborating with engineering, project management and commercial teams to ensure technical credibility and delivery realism. Remote-friendly role with global customers.