UK Space Jobs

ClearSpace · London

Owns the spacecraft thermal architecture across all mission phases, defining control strategies, thermal budgets and hardware such as MLI, radiators, heat pipes and heaters. Leads thermal modelling in ESATAN-TMS, verification and TVAC testing, and may coordinate the Mechanical, Thermal and Propulsion domains on a mission. Acts as technical authority liaising with customers, suppliers and partners while mentoring thermal engineers.

ClearSpace · London

Defines and evolves the flight software architecture and technical roadmap, supporting projects with architecture baselines, design decisions and standards. Acts as Software Subsystem Lead on selected missions, owning software design, system specification and delivery of scope, cost, schedule and quality, while mentoring the FSW team and coordinating external suppliers.

Gregory Martin International · Chippenham · £60,000 – £80,000 pa

Consultants work directly within customer teams to analyse problems, capture requirements, create architectures and assess options using systems engineering methods, then present evidence-based recommendations. Projects typically support defence and security research and procurement, with a focus on space, C4ISTAR and satellite systems, and the role also involves leading bids and building client relationships.

Gregory Martin International · Portsmouth · £60,000 – £80,000 pa

Lead major systems engineering consulting projects for defence clients, providing technical oversight, architecture development and integration strategies while mentoring junior staff. The role combines client delivery with business development, bids and subject-matter expertise in MBSE, requirements engineering and capability development across defence, telecoms and space domains.

Eutelsat OneWeb · Forfar

Specify and oversee development of mission control and resource management systems for IRIS² and future satellite constellations, covering payload planning, gateway and network configuration. Work spans functional architecture, supplier RFP assessment, trade-offs across subsystems, and integration with IVV teams. Interfaces closely with service and spacecraft operations teams.

Eutelsat OneWeb · Forfar

Design, simulate and integrate 5G NTN RAN architecture, evaluating algorithms, scheduling, QoS and mobility to optimise network performance. Work with RAN vendors and subcontractors through co-engineering and integration, connecting the satellite access network and SMO with the 5G Core, transport, payload and mission operations.

CesiumAstro · Milton Keynes

Owns integration and verification of space-communication systems spanning digital and analogue hardware, building and maintaining test setups and software for modem and link validation at baseband and RF level. Involves calibration and metrology analysis, Python-based modular test tooling, and troubleshooting link performance alongside DSP, hardware and software teams.

CesiumAstro · Milton Keynes

Designs and implements high-speed DSP algorithms for satellite and aerospace communication systems, including filters, equalisers, timing/carrier recovery loops and FFT engines. Builds floating- and fixed-point models in MATLAB or Python to verify VHDL hardware realisations, modelling channel impairments such as noise, Doppler and multipath.

Strongfield · Shanghai, China

This role involves leading the design and development of composite wing box structures for a new civil aircraft program. The engineer will conduct in-depth research on structural components and drive product development within a supportive, internationally integrated aerospace team. The position emphasizes technical leadership and innovation in composite design while offering a balanced lifestyle in Shanghai with opportunities for regional exploration.

Eutelsat OneWeb · Forfar

Lead application design and implementation for product catalogue and CPQ platforms supporting global satellite connectivity services. Translate business requirements into solution designs, model products within catalog and order management systems, and ensure integration between CRM, catalog, CPQ, provisioning and billing. Provide technical leadership and mentorship while working with architecture and engineering teams on API-driven, microservices-based solutions.