Senior Backend Developer
5 days ago
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 Chief Technology Office (CTO)
The CTO division is where Open Cosmos technology comes to life. Covering engineering, product development, and technical innovation, the team designs, builds, and operates the satellites, systems, and platforms that make our missions possible. It's a highly collaborative environment where ideas become real hardware, software, and data solutions that deliver impact from space.
Our Ground Segment team builds and runs the software that powers Open Cosmos missions. From our cloud-native Mission Operations Centre (MOC) to customer-facing tools, they design, deploy, and operate the systems that keep multi-satellite constellations flying.
Working with modern technologies — microservices, Kubernetes, Go, RabbitMQ, Postgres, and Terraform — they follow an agile, DevOps-driven approach. Every engineer owns their work end-to-end, from design and code to testing and operations, with plenty of space to suggest improvements and shape how they work.
What You'll Be Doing
As a Senior Backend Software Engineer, you'll design, build, test, deploy, and maintain backend services that power satellite operations — from our cloud-native Mission Operations Centre (MOC) to the systems that keep multi-satellite constellations running. You'll write and ship code from day one, collaborating with satellite operators and stakeholders to shape the technical roadmap, architecture, and features.
Working closely with teams across the Ground Segment, you'll mentor junior engineers, review code, and champion best practices. As our software scales, you'll tackle challenging problems, improve reliability and performance, and continuously enhance the development processes that keep our missions flying.
What You'll Bring
We care more about what you can do than where you learned it — if you're excited about the mission, we'd love to hear from you even if you don't tick every box.
To thrive in this role, you'll bring:
Strong programming skills in Golang (and ideally Python or similar) with a focus on clean, maintainable code.
The ability to design, implement, and maintain microservices using Docker, Kubernetes, PostgreSQL, HTTP REST, gRPC, and RabbitMQ.
A track record of creating and championing best practices that lead to reliable, scalable software.
Clear, concise communication and a collaborative approach — you listen well, get to the core of problems, and respond effectively.
For this role you can be based in any of our locations:
Harwell, UK
Barcelona, Spain
Porto, Portugal
Athens, Greece
To apply, you must have the legal right to work in your chosen location.
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.
-
Senior React Frontend Developer
5 days ago
Pallini Municipal Unit, Greece Open Cosmos Full time €45,000 - €90,000 per yearAim high, go beyond At Open Cosmos we are solving the world's biggest challenges fro 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 Chief Technology Office (CTO) The CTO division is where Open Cosmos technology comes to life....
-
Senior Electronics Engineer
5 days ago
Pallini Municipal Unit, Greece Open Cosmos Full time €60,000 - €90,000 per yearAim 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 Chief Technology Office (CTO) The CTO division is where Open Cosmos technology comes to life....
-
Mobile App Developer
3 days ago
Pylaia Municipal Unit, Greece DOTSOFT SA Full time €35,000 - €45,000 per yearΠεριγραφή εταιρείας Η DOTSOFT είναι μία από τις πιο καινοτόμες και πρωτοπόρες εταιρείες πληροφορικής και επικοινωνιών, με μακρά τεχνογνωσία και εμπειρία στην ανάπτυξη ολοκληρωμένων πληροφοριακών...
-
Senior Earth Observation Presales Engineer
5 days ago
Pallini Municipal Unit, Greece Open Cosmos Full time €60,000 - €90,000 per yearWorking for Open CosmosAim 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 the Data TeamOur team is responsible for the delivery of all data products...
-
Senior Change Management Consultant
3 days ago
Ia Municipal Unit, Greece Sanford Health Full time $40 - $66Sanford Health is one of the largest and fastest-growing not-for-profit health systems in the United States. We're proud to offer many development and advancement opportunities to our nearly 50,000 members of the Sanford Family who are dedicated to the work of health and healing across our broad footprint. Work Shift:8 Hours - Day Shifts (United States of...
-
Gerakas Municipal Unit, Greece DDB Athens Full time €25,000 - €40,000 per yearAt DDB, one of the market's leading Advertising Groups with 68 years of presence, we are looking for a nice and talented Senior Social Media Manager that will be part of the future success of the company by helping our clients stand out, finding their unique brand voice. The role collaborates with the Client Service and reports to the Executive Director.If...
-
Quality Assurance Oversight Senior Officer
3 days ago
Pallini, Attica, Greece Pharmathen Full time €35,000 - €60,000 per yearDescriptionFounded in 1969, Pharmathen has grown to become one of the largest, vertically integrated developers of complex drug delivery technologies and is among the top 50 pharmaceutical research companies in Europe.The company has one of the most extensive and advanced pipelines of long acting injectables (LAI), sustained release and ophthalmic...
-
Pylaia Municipal Unit, Greece Grant Thornton Greece Full time €25,000 - €40,000 per yearWho we AreAt Grant Thornton Greece, we're not just part of a global network of 73,000 professionals across 150 countries. We're independent thinkers who prioritize quality, inclusion, and integrity to create a better, more personal experience for our clients and our team. Our mission? To deliver expertise in a way that goes beyond — Personal, Proactive,...
-
Junior Investment Advisor – Thessaloniki
5 days ago
Pylaia Municipal Unit, Greece Grant Thornton Greece Full time €20,000 - €40,000 per yearWho we AreAt Grant Thornton Greece, we're not just part of a global network of 73,000 professionals across 150 countries. We're independent thinkers who prioritize quality, inclusion, and integrity to create a better, more personal experience for our clients and our team. Our mission? To deliver expertise in a way that goes beyond — Personal, Proactive,...
-
Tax Associate Advisor
5 days ago
Pylaia Municipal Unit, Greece Grant Thornton Greece Full time €35,000 - €45,000 per yearWho we AreAt Grant Thornton Greece, we're not just part of a global network of 73,000 professionals across 150 countries. We're independent thinkers who prioritize quality, inclusion, and integrity to create a better, more personal experience for our clients and our team. Our mission? To deliver expertise in a way that goes beyond — Personal, Proactive,...
