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Salary
≈ $64k – $143k per year (Estimated)
Location
In office (Didcot)
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 17, 2026. First seen by Alion on Apr 28, 2026. Open Cosmos scores A on the Alion truth index.

Overview
Company
Impact
Profile match
Open Cosmos is a British company founded in 2015 and based at the Harwell space cluster in Oxfordshire. It builds and operates small satellites as a complete mission service, handling design, launch and data delivery for customers. The company runs constellations for governments and companies monitoring the environment and infrastructure.

Aim high, go beyond!

At Open Cosmos we are solving the world’s biggest challenges from space, providing businesses, governments and researchers access to more readily available information than ever before - ready for the challenge? Then read on…

Working in our Data Division

At Open Cosmos, our Data division transforms satellite data into meaningful insights that drive real-world impact. The team delivers all data products generated by Open Cosmos and its partners, curates and develops DataCosmos (our geospatial data platform) and builds integrations that make satellite imagery easy to access and act on.

We’re now looking for a Site Reliability Engineer to help us ensure our data platform is reliable, scalable, and performing at its best as we grow.

What will you be doing?

  • Owning the reliability, performance, and scalability of our data platform and processing pipelines

  • Monitoring systems end-to-end, ensuring full visibility across infrastructure and data flows

  • Responding to incidents, troubleshooting issues, and driving long-term fixes

  • Improving deployments and contributing to CI/CD pipelines for safe, repeatable releases

  • Working closely with engineering teams to design resilient, scalable systems

  • Automating processes and reducing operational overhead

  • Supporting customer-impacting issues alongside Customer Success teams

What You’ll bring

  • Strong demonstrable ability to work with Linux systems and cloud platforms (AWS, GCP or Azure)

  • Solid Kubernetes knowledge and ability to run production systems

  • A clear understanding of observability (monitoring, logging, tracing)

  • Capable of designing or operating high-availability, distributed systems

  • A mindset focused on automation, scalability, and continuous improvement

  • Confidence working in fast-moving environments where reliability really matters

This role can be based in any of our European Locations.

To apply, you must have the legal right to work in our chosen location.

When applying, please submit your CV in English.

Why Open Cosmos?

  • Work at the cutting edge of space technology with customers around the globe.

  • A mission-driven company making space accessible to help solve real-world challenges.

  • A diverse, ambitious, and supportive team.

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