Quality Control Engineer – AI & LLM Services

Barcelona | Hybrid | Fixed-term contract (to June 2026)

Want to be on the front line of real-world AI quality, validating systems that power next-generation LLMs, chatbots, and AI services used globally?

A fast-scaling European deep-tech company at the intersection of AI and advanced computing is hiring a Quality Control Engineer to ensure the reliability, performance, and robustness of cutting-edge AI products.

This role is actively hiring with a fast, transparent interview process.

Why this role stands out

• Work on AI technology that dramatically reduces model size and inference cost
• Direct impact on production LLM systems used by enterprise clients
• Join a Series‑B‑stage deep‑tech company with strong international backing

What you’ll do

• Own quality validation for AI & LLM‑based applications (chatbots, RAG, APIs, data pipelines...