Backend Developer (Data)

Backend Engineer | Tech Start up (€200m+ raised) | Immediate Start | Zaragoza (Hybrid)

A fantastic opportunity for a driven Engineer to join a leading Quantum AI company, who work on cutting-edge solutions that make AI faster, greener, and more accessible. You’ll be working alongside world-leading experts in quantum computing and AI, developing solutions that deliver real-world impact for global clients.

2–5 years of experience developing and maintaining backend systems in Python or Go. ~ Strong understanding of RESTful API or gRPC design, versioning, and performance optimization. ~ Experience with Docker and basic familiarity with Kubernetes for deploying scalable services. ~ Solid understanding of relational databases (PostgreSQL/MySQL) and schema design. ~ Experience integrating or automating workflows across multiple systems (data, CI/CD, ML). ~ Proficiency with Git, testing frameworks, and CI/CD pipelines (GitLab, GitHub Actions). ~ Experience with AWS or cloud-based deployment environments. ~ In accordance with local employment laws, applicants must have current, valid authorisation to work in Spain at the time of application. We are unable to sponsor employment visas for this role. By applying to this role, you understand that we may collect your personal data and store and process it on our systems.