Back End Developer (Python / GO / AWS) - Hybrid from Zaragoza

Backend Software Developer

A fantastic opportunity for a driven Backend Software Developer to join fast-growing deep-tech company, who provide hyper-efficient software to global companies across finance, energy, manufacturing and cybersecurity to gain an edge with quantum computing and artificial intelligence.

Required Qualifications

• 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.
• A product-oriented mindset — able to turn R&D scripts or prototypes into stable, usable APIs or microservices.

Bonus Experience

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