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Senior Machine Learning Engineer

European Tech Recruit | marzan, Spain | Posted June 02, 2026

Position Overview

Mid/Senior LLM Engineer - Barcelona/Madrid/Zaragoza/San Sebastian

Our client is Europe’s largest software companys With over 200+ team members worldwide, they deliver hyper-efficient AI that powers industries from finance to energy to manufacturing.

They're looking for a Mid/Senior LLM Engineer to join our growing AI team. You’ll work alongside world-leading experts on groundbreaking projects.

What You’ll Do

  • Design and develop new methods for compressing and optimizing LLMs
  • Fine-tune and benchmark models for accuracy, robustness, and efficiency
  • Work with cross-functional teams to integrate LLMs into real-world products
  • Guide and mentor junior engineers in LLM development
  • Stay at the cutting edge of research in AI, LLMs, and quantum-inspired computing

What We’re Looking For

  • MSc/PhD in AI, Computer Science, Data Science, or related field ...

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