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Software Engineer

Contributes across the full development lifecycle, from concept and algorithm design to system integration, testing and troubleshooting of safety-critical navigation and autonomy software in C++. Works with a multidisciplinary team on real-time embedded systems, hardware/software-in-the-loop testing and flight test activities, producing design documentation and test reports.

Flarebright Bicester £39,000 – £49,000 pa
On-site Permanent Clearance Required

Satellite Communications Telecommunications Systems Engineer

Develop, refine and deploy satellite and terrestrial communication systems spanning infrastructure, field deployment, system architecture and software setup. Work within a 6G future connectivity team on Non-Terrestrial and Terrestrial Ubiquitous Communication concepts, delivering technical projects and consultancy while engaging universities and research centres on satellite-enabled 5G and 6G networks.

Expert Employment Didcot £38,000 – £75,000 pa

Satellite Communications Payload Systems Engineer

Design and deliver RF and optical communications payload equipment for spacecraft, covering antennas, transponders, high power amplifiers, receivers and radio wave processors. The role combines hands-on technical delivery with consultancy to businesses and engagement with universities and research centres, plus bid writing for framework programmes such as IUK, ESA and Horizon.

Expert Employment Didcot £38,000 – £68,000 pa

Pre-Sales Support - satellite comms

Provide pre-sales technical support across sales, projects and engineering in satellite communications and broadcast, joining account managers on customer visits and coordinating engineering input for key accounts. Develop product knowledge, build supplier relationships, deliver internal training and share market insight, with potential to take on a portfolio of key customer accounts.

Enmase Group Basingstoke £65,000 pa
On-site

Flight Dynamics Engineer

Provides 24/7 flight dynamics operations support on a shift rota, performing on-console work and real-time mission support from launch to de-orbit. Configures, troubleshoots and monitors orbit determination, maneuver, trajectory and attitude planning software, including collision avoidance planning, and develops operational procedures.

Eutelsat OneWeb London
Hybrid

Senior Flight Dynamics Mission Analyst

Acts as a cornerstone of the Mission Analysis function within an integrated Flight Dynamics team, performing full mission lifecycle analysis from launch to de-orbit, including launch window analysis, maneuver planning, trajectory design and optimisation, orbit determination, constellation analysis, and conjunction assessment. Also supports FDS development and automation, writes engineering specifications and CONOPS documentation, and mentors junior engineers across GEO and LEO programmes.

Eutelsat OneWeb London
Hybrid

Product Assurance Engineer

Owns product assurance and quality activities across complex space payload hardware, spanning design, manufacturing, qualification and delivery. Ensures compliance with ECSS, ESA and NASA standards, leads non-conformance reviews and root cause analysis, and supports component qualification and supplier quality. Works closely with engineering, manufacturing, supply chain and programme teams in a regulated space and defence environment.

Copello Stockton-on-Tees £55,000 – £60,000 pa
Clearance Required

Product Assurance Payload Lead

Leads product assurance across space payload programmes from concept to customer delivery, ensuring compliance with ECSS, ESA and NASA standards. Works with engineering, manufacturing, supply chain and programme teams on component qualification, non-conformance investigations and design reviews. Requires UK security clearance and existing right to work.

Filtronic Stockton-on-Tees
On-site Permanent Clearance Required

SoC/ASIC Architect

Drive architectural definition of complex SoCs for satellite communications platforms, translating system and product requirements into specifications and guiding trade-offs across performance, power, area and security. Work cross-functionally with hardware, software, verification and systems teams, and support silicon bring-up and debug. The Edinburgh silicon team is a small, hands-on group building next-generation silicon for a space-based mobile broadband network.

AST SpaceMobile Edinburgh

Systems Engineering Consultant

Lead major consulting projects across defence, energy and health, delivering requirements engineering, architecture development, MBSE and systems analysis. The role combines technical leadership, client delivery, business development and mentoring within a growing consultancy, with hybrid working from Chippenham.

Gregory Martin International Chippenham £60,000 – £80,000 pa
Hybrid Clearance Required

Systems Engineering Consultant

Lead major systems engineering consulting projects for defence clients, delivering technical excellence across requirements, architecture, MBSE and integration. The role combines team leadership, client delivery, subject-matter expertise and business development, including bids and stakeholder engagement with UK MOD and defence primes.

Gregory Martin International Portsmouth £60,000 – £80,000 pa
Hybrid Clearance Required

STAGE - Ingénieur traitement numérique du signal - Communications optiques par satellite - F/H

Develop a DSP chain for very high-throughput coherent optical satellite communications, implementing it in real time on Xilinx Versal FPGA/SoC hardware. The intern works on a real-time optical transmitter/receiver demonstrator targeting multi-Gbps transmission, using Vitis/Vivado, VHDL, HLS and Matlab within the CTO research department.

Thales Alenia Space Toulouse, France
On-site Internship

Communications Test Engineer I

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
On-site Permanent Clearance Required

RF Payload Engineer

Design, implement and verify RF payload solutions for satellite missions, covering system-level performance analysis of communications, radar and SIGINT payloads. The role spans hardware specification for transmitters, receivers and antennas, signal processing, tool development, and payload verification through environmental test and in-orbit commissioning. It also includes work package management, budget and schedule planning, bid input and presenting technical progress to stakeholders.

Surrey Satellite Technology Guildford
On-site Permanent

Project Manager

Manages small space projects and studies or supports larger programmes from contract award through development, launch preparation and in-orbit commissioning. Leads the day-to-day project core team, handling schedules, work packages, risk, earned value and financial performance, and supports bid activities with programme management input.

Surrey Satellite Technology Guildford
On-site

Machine Learning Engineer - Spacetime UK

Join a team building temporospatial software-defined networking platforms for aerospace, working on satellite and airborne mesh networks plus cislunar and deep-space communications. The role focuses on machine learning engineering within a system that orchestrates planetary mesh networks across any radio or optical spectrum, orbit, and hardware.

Aalyria London
Hybrid