UK Space Jobs

Software Engineer - On Board Processing

Design and develop flight software for satellite systems, focusing on reliability and performance in space missions. Work on Linux and RTOS-based platforms, ensuring robust integration with spacecraft subsystems. Engage in full lifecycle development with strong emphasis on traceability, testing, and continuous improvement in a cross-functional team environment.

Open Cosmos Ltd Didcot, OX11 0RL, United Kingdom

On-site Permanent

Mission Concept Engineer

The role involves defining and developing advanced space mission concepts by translating customer needs into technically sound and commercially viable solutions. You will lead mission proposals, conduct technical analyses such as orbital and power budgeting, and collaborate with engineering and project teams to build end-to-end mission architectures. The position requires strong analytical and systems engineering skills, with a focus on innovation in satellite missions for commercial and institutional clients.

Open Cosmos Ltd Didcot, OX11 0RL, United Kingdom

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

Site Reliability Engineer (DataCosmos)

This role involves ensuring the reliability, scalability, and performance of Open Cosmos's DataCosmos geospatial data platform and processing pipelines. The engineer will monitor systems end-to-end, respond to incidents, improve CI/CD pipelines, and collaborate with engineering teams to build resilient systems. Automation and operational efficiency are key focus areas, with work supporting real-world applications of satellite data.

Open Cosmos Ltd Didcot, OX11 0RL, United Kingdom

On-site Permanent

Image Production Engineer

The role involves owning and optimizing the end-to-end satellite imagery processing pipeline, from data acquisition to delivery. The engineer will ensure high-quality, reliable outputs by troubleshooting systems, improving production code in Python, and implementing robust monitoring and validation. Close collaboration with engineering and SRE teams is required to maintain scalability and performance in a mission-driven space technology environment.

Open Cosmos Ltd Didcot, OX11 0RL, United Kingdom

On-site Permanent

Customer Support Specialist (DataCosmos)

Provide first-line technical support for a geospatial data platform, onboarding users, troubleshooting issues, and collaborating with engineering teams to improve customer experience. Focus on enabling global customers to effectively use satellite data and imagery products.

Open Cosmos Ltd Didcot, OX11 0RL, United Kingdom

On-site Permanent

Head of Software & Cloud Infrastructure

Lead the technical vision for cloud and software infrastructure within a satellite communications environment, designing scalable and secure platforms that support end-to-end mission operations. Drive CI/CD, GitOps, and Infrastructure-as-Code frameworks while enabling digital twins, networked systems, and real-time data processing. Bridge engineering, product, and operations to deliver resilient, automated cloud environments for space-based connectivity.

Open Cosmos Ltd Didcot, OX11 0RL, United Kingdom

On-site Permanent

Junior Legal Counsel

This role involves handling day-to-day commercial legal work including drafting, reviewing, and negotiating contracts such as NDAs, procurement agreements, and customer contracts. The Junior Legal Counsel will work closely with the General Counsel and cross-functional teams to provide practical legal advice and support complex space-sector projects. The position requires fluency in English and Spanish and involves translating legal guidance for non-legal stakeholders across an international business.

Open Cosmos Ltd Didcot, OX11 0RL, United Kingdom

On-site Permanent

Data Software Engineer

Design and build scalable data pipelines to transform raw Earth Observation data into high-quality, actionable insights. Work with satellite data, geospatial platforms, and productionise scientific code within a mission-driven space technology environment. Focus on reliability, data standards, and integration of new data types and processing techniques.

Open Cosmos Ltd Didcot, OX11 0RL, United Kingdom

Remote Permanent

Mechanical Engineer

This role involves leading mechanical design for satellites, subsystems, and ground support equipment, using 3D CAD tools to produce precise models and drawings. The engineer will apply GD&T standards, support assembly and testing in cleanroom environments, and collaborate across disciplines to deliver flight-ready hardware. Work spans from design through to integration and testing within a dynamic, mission-driven space technology environment.

Open Cosmos Ltd Didcot, OX11 0RL, United Kingdom

Hybrid Permanent Flexible

2nd Line IT Support Engineer

This role involves resolving escalated IT support issues across Windows, Linux, macOS, and mobile platforms, managing identity and access systems, and supporting infrastructure such as networks, MDM solutions, and cloud services. The engineer will troubleshoot complex technical problems, manage device lifecycles, and contribute to system upgrades and security hardening. Emphasis is placed on automation, user support, and maintaining secure, compliant IT environments in a growing space technology company.

Open Cosmos Ltd Didcot, OX11 0RL, United Kingdom

On-site Permanent

Inventory & Logistics Coordinator (Harwell, Oxfordshire)

This role involves managing inventory and logistics operations for satellite hardware and components at Open Cosmos' Harwell facility. You'll handle goods in/out processes, maintain accurate stock records, support audits and reconciliations, and coordinate shipments of mission-critical materials. Working closely with engineering and procurement teams, the position ensures smooth material flow and traceability within a high-precision satellite integration environment.

Open Cosmos Ltd Didcot, OX11 0RL, United Kingdom

On-site Permanent Clearance Required