AWS Engineer - Remote Working (Barcelona)

Job Overview

LLM Engineer (Mid-Senior)
Location: Several options within Spain

We are partnering with a well-funded, rapidly scaling deep-tech company operating at the intersection of advanced AI and next-generation computing to find their next Senior LLM Engineer. The company is building highly efficient, production-grade AI systems designed to solve complex real-world problems at scale. Their team combines world-class researchers and engineers working on cutting-edge challenges in large-scale model development, optimization, and deployment. This is an opportunity to join a highly technical environment where you will directly contribute to the future of large language models - not just apply them.

Key Responsibilities

• Design and train transformer-based models from scratch, including large-scale pretraining pipelines.
• Contribute to post-training workflows such as SFT, RLHF, and DPO.
• Build and optimize large-scale data pipel...