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UK Space Jobs

Latest UK roles, updated daily.

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Head of Spectrum & Regulatory Affairs

Leads the strategic management and protection of Open Cosmos' global spectrum assets, ensuring compliance with international regulations and coordinating frequency rights across jurisdictions. Translates complex regulatory requirements into technical constraints for satellite operations and represents the company before regulators and industry bodies. Focuses on long-term spectrum planning, ITU filings, and cross-functional collaboration with engineering and mission operations teams.

Open Cosmos Ltd Didcot, OX11 0RL, United Kingdom
On-site Permanent

Electronics Engineer – Satellite Manufacturing (AIT Production)

This role involves hands-on integration, testing, and validation of electronic assemblies for satellites, including troubleshooting PCBs and supporting production. The engineer will develop test procedures, ensure compliance with aerospace standards, and collaborate across engineering and manufacturing teams to deliver reliable, space-ready hardware.

Open Cosmos Ltd Didcot, OX11 0RL, United Kingdom
On-site Permanent

Radiation Engineer

This role involves ensuring the radiation robustness and reliability of electronic components and subsystems used in satellites. The engineer will analyze, test, and qualify electronic devices against space radiation effects, develop irradiation test plans, execute test campaigns, interpret results, and provide hardening recommendations to design teams. The position works across international programs and collaborates with agencies like ESA, requiring strong technical analysis and communication skills.

Thales Alenia Space Belgium

APU UNIT TECHNICIAN

The role involves manual tuning and testing of RF and digital boards, modules, and equipment used in space applications, primarily within S and Ku frequency bands. The technician will work with automated test benches and support pre-acceptance and acceptance campaigns, ensuring compliance with stringent space industry standards in cleanroom environments. Team collaboration and precision are essential in this multicultural, high-tech setting.

Thales Alenia Space Spain

Verification & Validation Engineer

This role involves ensuring satellite communication systems meet mission-critical requirements through automated testing integrated into agile workflows. The engineer will develop and maintain test frameworks, execute validation in Software- and Hardware-in-the-Loop environments, and collaborate closely with development teams to debug issues and improve system reliability. Focus is on continuous verification of complex, distributed systems using Python and CI/CD pipelines.

Open Cosmos Ltd Didcot, OX11 0RL, United Kingdom
On-site Permanent

Thermal Systems Engineer

The role involves leading thermal engineering efforts across satellite missions, including thermal modelling, test planning and execution, and hands-on support during AIT (Assembly, Integration, and Testing). The engineer collaborates with cross-functional teams to ensure spacecraft thermal performance in orbit and contributes to product development and process improvements within a fast-paced, innovative space technology environment.

Open Cosmos Ltd Didcot, OX11 0RL, United Kingdom
On-site Permanent

Senior AOCS Systems Engineer

This role involves leading the design, analysis, and testing of Attitude and Orbit Control Systems (AOCS) for satellite missions within a systems engineering environment. The engineer will develop simulation models, conduct lab validation, and support mission operations and pre-sales activities. Collaboration with suppliers and cross-functional teams is key to delivering high-performance spacecraft systems for Earth observation, telecom, and demonstration missions.

Open Cosmos Ltd Didcot, OX11 0RL, United Kingdom
On-site Permanent

Business Development Opportunities

This role involves identifying and closing new business opportunities across enterprise, institutional, and government markets. You will build strong customer relationships, collaborate with technical teams, and represent Open Cosmos at industry events. The position offers opportunities for growth at various career levels, from early career to established leaders.

Open Cosmos Ltd Didcot, OX11 0RL, United Kingdom
On-site Permanent

Mission Operations Manager

This role involves end-to-end management of satellite missions, ensuring reliable spacecraft operations and data delivery from orbit. The Mission Operations Manager will act as the main contact for satellite owners, monitor mission health across space and ground systems, coordinate incident resolution, and drive operational improvements. Working within the CTO office, the role bridges technical teams and customer objectives in a fast-paced space technology environment.

Open Cosmos Ltd Didcot, OX11 0RL, United Kingdom
On-site Permanent

Test Engineer (Data)

A Test Engineer in the Data team ensures the quality and reliability of the DataCosmos geospatial data platform by designing automated and manual tests, validating data flows, and supporting CI/CD pipelines. The role involves testing frontend, API, and data layers while collaborating with engineering and product teams to define test coverage and improve testing practices.

Open Cosmos Ltd Didcot, OX11 0RL, United Kingdom
On-site Permanent

Earth Observation Presales Engineer

The Earth Observation Presales Engineer supports customer discovery and solution design by combining satellite imagery, geospatial analytics, and Open Cosmos's platforms. The role involves technical feasibility studies, mission simulations, and customer demonstrations, working closely with business development and engineering teams. It requires strong technical and communication skills to translate customer needs into viable Earth Observation solutions.

Open Cosmos Ltd Didcot, OX11 0RL, United Kingdom
On-site Permanent

System Performance & Modelling Engineer

Develop high-fidelity simulation frameworks for LEO satellite communication systems, modelling end-to-end performance across orbital dynamics, air interface, payload, and network layers. Analyse system capacity, latency, reliability, and resource allocation to optimise constellation performance and support architectural trade studies.

Open Cosmos Ltd Didcot, OX11 0RL, United Kingdom
On-site Permanent

Backend Engineer (DataCosmos)

This role involves designing and maintaining scalable backend services and APIs for DataCosmos, a geospatial data platform that processes and delivers satellite data. The engineer will work extensively with Go and Python, cloud-native technologies like Docker and Kubernetes, and contribute to CI/CD and infrastructure improvements. Collaboration with cross-functional teams is key to delivering solutions for real-world space missions.

Open Cosmos Ltd Didcot, OX11 0RL, United Kingdom
Hybrid Permanent

Embedded Systems Engineer

Design and develop real-time embedded software and firmware for satellite communications systems, spanning both space and ground infrastructure. Work on FPGA-based solutions, low-level hardware control, and high-reliability communication protocols in a multidisciplinary engineering environment. Focus on fault tolerance, performance optimisation, and integration across RF, DSP, and embedded systems.

Open Cosmos Ltd Didcot, OX11 0RL, United Kingdom
On-site Permanent

Senior Network Engineer

This role involves designing and implementing advanced network architectures for a dynamic low Earth orbit (LEO) satellite constellation. The engineer will develop custom routing solutions using Segment Routing and IS-IS, integrate control and data planes on specialised hardware, and validate performance under orbital dynamics using simulations and digital twins. Collaboration with cross-functional teams is key to evolving a resilient, high-throughput space-based communications platform.

Open Cosmos Ltd Didcot, OX11 0RL, United Kingdom
On-site Permanent

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