UK Space Jobs

Operations Engineer (AIT Production)

This role involves developing and optimizing satellite manufacturing processes within a high-tech production environment. The engineer will apply Lean and Six Sigma methodologies to improve efficiency, quality, and scalability in satellite assembly and testing. Responsibilities include data analysis, SOP development, cross-functional collaboration, and ensuring compliance with safety and quality standards during production.

Open Cosmos Ltd Didcot, OX11 0RL, United Kingdom

On-site Permanent

Satcom Payload Architect

The role involves defining the end-to-end technical architecture of advanced satellite communication payloads for low Earth orbit (LEO) constellations. You will translate service requirements into detailed technical specifications for RF, digital, and optical subsystems, perform microwave link analysis, and ensure alignment between payload and spacecraft design. The position requires deep systems engineering expertise in satellite communications, with a focus on flexible, high-performance, and SWaP-optimised solutions.

Open Cosmos Ltd Didcot, OX11 0RL, United Kingdom

On-site Permanent

Bid Technical Manager Software

This role involves leading the technical aspects of software-focused bids, translating customer requirements into feasible solutions while aligning with product strategy. You'll act as Product Owner during bid phases, coordinate input from engineering teams, and ensure proposals are technically sound and competitive. The position is central to shaping digital solutions using AI, cloud technologies, and cybersecurity in a space-focused innovation environment.

Thales Alenia Space Luxembourg

Délégué RAN4 F/H

This role involves representing Thales in international standardization bodies such as 3GPP, ETSI, and ITU-R, focusing on satellite-based 5G and 6G technologies. The candidate will lead technical contributions, negotiate consensus on Non-Terrestrial Networks (NTN), and align standardization strategy with industrial programmes like IRIS² and LEO-PNT. Responsibilities include preparing technical contributions, analysing industry proposals, patent drafting, and supporting R&D projects such as Horizon Europe 6G-NTN NEXUS.

Thales Alenia Space France

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

Electronics Engineer (Power)

Design and validate power electronics circuits for satellite electronic power systems, from solar panels to battery management and distribution modules. Develop and test prototypes through to verification, ensuring robustness and reliability in space environments. Collaborate across engineering teams to integrate EPS with overall mission requirements and drive innovation in next-generation satellite power systems.

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

Senior Access Layer Engineer

This role involves designing and optimizing physical and MAC layer functionality for satellite communication systems in low Earth orbit environments. The engineer will develop waveforms, protocols, and link adaptation strategies, build simulation environments using MATLAB or Python, and lead prototyping on SDR platforms. Work includes addressing LEO-specific challenges like Doppler effects, latency, and mobility within 3GPP NTN and DVB-S2X standards.

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