Back End Developer

Backend Engineer | AI Start-up | | Python / GO | Fixed-term Contract

Join a European deep-tech leader in quantum and AI.

A well-funded, fast-growing company backed by major global investors with its groundbreaking technology is already transforming AI, compressing large language models by up to 95% and cutting inference costs by 50–80%.

This is your chance to be part of a team often described as a quantum-AI unicorn in the making.

This is a Hybrid opportunity working out of Barcelona. It is a fixed-term contract to work until 30th June 2026.

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 desi...