Backend Engineer (DataCosmos)

Open Cosmos; Barcelona; On-site; EUR 40,000 - 60,000; Full time

Job summary

Open Cosmos in Barcelona is looking for a Backend Engineer to join its Data division. In this role, you will design, build, and maintain scalable backend services that power the delivery of satellite data globally.

The ideal candidate will have strong backend engineering experience in Go or Python, and be passionate about technology and making space accessible. You will collaborate with cross‑functional teams and work with cloud-native technologies.

Qualifications

• Strong backend engineering experience with Go, Python, or similar.
• Experience with APIs, microservices, and distributed systems.
• Good understanding of databases like PostgreSQL.

Responsibilities

• Design and maintain scalable backend services and APIs.
• Develop clean and reliable code in Go/Python.
• Collaborate to deliver solutions for space missions.

Skills

Backend engineering experience with Go or Python

APIs and microservices

Distributed systems and scalable architectures

Database understanding (PostgreSQL)

Cloud environments and DevOps

Problem-solving skills

Collaboration in fast-paced environments

Tools

Docker

Kubernetes

Job description

Requirements

• Strong backend engineering experience with Go, Python, or similar languages
• Experience with APIs, microservices, distributed systems, and scalable architectures
• Good understanding of databases such as PostgreSQL and data modelling principles
• Familiarity with cloud environments, containerisation, and DevOps practices
• A proactive, ownership-driven mindset with strong problem-solving skills
• A collaborative approach and the ability to thrive in a fast-paced scaling environment
• Passion for technology and a genuine motivation to contribute to making space accessible and impactful

What the job involves

• 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 are now looking for a Backend Engineer to join the DataCosmos team at Open Cosmos. You’ll play a key role in building and scaling the platform that powers the delivery of satellite data to customers around the world
• Designing, building, and maintaining scalable backend services and APIs
• Developing clean, reliable code in Go and/or Python
• Improving platform performance, scalability, observability, and reliability
• Working with cloud-native technologies including Docker and Kubernetes
• Contributing to CI/CD pipelines, deployment strategies, and infrastructure improvements
• Collaborating with cross‑functional teams to deliver technical solutions for real‑world space missions
• Supporting production systems and driving continuous improvement across the platform