Full-time

Back End Developer - Python

Posted by European Tech Recruit • Barcelona, Provincia de Barcelona, Spain

📍 Barcelona, Provincia de Barcelona 🕒 February 26, 2026

About the Role

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.



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 s...

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