Junior Backend Engineer; DataCosmos

Junior Backend Engineer (Data Cosmos)

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

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 Data Cosmos — our geospatial data platform — and builds integrations that make satellite imagery easy to access and act on. Their work helps organisations turn data into action and create positive change on Earth.

We’re looking for a Junior Backend Engineer to join our Data Cosmos team, helping build and maintain the software and services that deliver satellite data to our customers. You’ll gain hands‑on experience working with cloud‑native technologies, learning from experienced engineers, and contributing to real systems that power the Open Constellation.

This is a fantastic opportunity for someone at the start of their engineering journey who’s eager to develop strong software fundamentals and apply them in the fast‑moving world of space technology.

• Support the development of new backend features and services for the Data Cosmos platform.
• Help maintain and improve existing systems, fixing bugs and enhancing performance.
• Learn and apply best practices in Go and/or Python, testing, and cloud‑native development.
• Participate in code reviews, CI/CD workflows, and agile ceremonies alongside experienced engineers.
• Collaborate across teams to understand customer needs and ensure your work delivers measurable impact.
• Contribute to a reliable, scalable, and efficient platform that keeps our satellite data flowing.

• Familiarity with at least one programming language (Go, Python, or similar).
• Basic understanding of version control (Git), databases (Postgre
  
  SQL), and web services (REST, gRPC).
• Curiosity about cloud technologies like Docker, Kubernetes, and CI/CD.
• Understanding of computer science fundamentals and software development practices.
• A problem‑solving mindset, strong attention to detail, and eagerness to learn.
• Great communication skills and the ability to work effectively in a collaborative, fast‑paced team.

This role you can be based in any of our locations: UK | Spain | Portugal | Greece | Argentina.

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

When applying, please submit your CV in English.

• 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.

Division: DATA COSMOS;
Department: DATA;
Role:
Backend Software Engineer;
Locations:
Harwell, UK, Athens, Greece, Barcelona, Spain, Buenos Aires, Argentina, Porto, Portugal;
Remote status:
Hybrid;

Employment type:

Full‑time.

Open Cosmos is dedicated to solving customer problems with insights from space. Whether this is monitoring agricultural yields, assessing the damage of oil spills or providing navigation solutions, we believe that data from satellites is the most effective and sustainable way of achieving this.

Let’s recruit together and find your next colleague.