Open Cosmos
Senior Software Engineer (Ground Segment)

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Aim high and 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.
We build, test, launch and operate satellites to solve the problems of our customers. It’s an exciting time to join as we scale up to meet the demands of the fast-growing space industry.
Working in our ground segment team
You can think of our satellites as essentially Linux computers 500km away travelling at 8km/s that we can only talk to for a few minutes per day. In that time we download telemetry, verify satellite health, respond to anomalies, plan the next orbit's activities and retrieve payload data such as images.
These constraints create unique and exciting engineering challenges. The Ground Segment team builds and runs software to test and operate satellites with high levels of automation. The operational infrastructure we provide is critical to the success of our missions, and the tools we build on top make everyone in the company more productive. We're scaling fast to support upcoming missions.
Reasons to use Rodeo
I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?
Honest answer — it depends on where you want to end up. A lot of top grad schemes (Big 4, civil service, banking) don’t need a masters. Let’s look at the ones you’d be competitive for now, and we can decide if a masters actually adds anything.
Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.
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Graduate Consultant — 2026 Scheme
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StrongYour economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.
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You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.
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Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.
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Our operations platform runs Go and Python microservices on Kubernetes, backed by PostgreSQL, with a React/TypeScript frontend. We favor proven technologies so we can focus on the problems that actually matter: reliably operating a growing constellation at scale.
What You'll Be Doing
- Designing and owning backend services and APIs used in satellite and mission operations
- Leading technical design discussions and guiding implementation approaches across the team
- Talking with system engineers, spacecraft operators and avionics developers to understand their needs and defining the product roadmap
- Writing high-quality, maintainable and well-tested code and setting standards through peer review
- Monitoring backend services, troubleshooting issues and leading incident resolution
- Participating in sprint planning, stand-ups, retrospectives and technical reviews


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What You’ll Bring
- Strong programming capability in Go and Python (or comparable backend languages)
- Experience leading complex software projects and mentoring other engineers
- Confidence debugging issues in complex systems
- Familiarity with computer networking and software performance principles
- Knowledge of automated testing practices and CI/CD pipelines
- Understanding of monitoring, logging and observability concepts
- Fluency in English and strong communication skills
For these roles you can be based in any of our locations:
- Harwell, UK
- Barcelona, Spain
- Porto, Portugal
- Athens, Greece
- Tenerife, Canary Islands
To apply, you must have the legal right to work in your chosen location.
Please submit your application 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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