Full-time

LLM Backend Senior Engineer (Hybrid/Remote Europe)

Posted by UNITH • barcelona, barcelona, Spain

📍 barcelona, barcelona 🕒 February 24, 2026

About the Role

A tech company specializing in AI is seeking a Senior Backend Engineer to build backend systems for conversational AI and digital humans. This hybrid role in Barcelona involves both architecture and hands-on development, particularly with LLMs and AWS services. Candidates should have 5 years in backend engineering and experience building LLM-powered products. The position offers significant technical challenges, collaboration within a small team, and flexible work arrangements.
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