Senior Applied Research Engineer | Barcelona, SpainWe are partnered with a cutting- edge AI company shaping the future of enterprise decision- making. Founded by experienced technologists from leading research environments, the firm has developed a market- leading platform purpose- built for the structured data that underpins critical business decisions. Backed by top-tier investors and trusted by some of the world’s largest organisations, the company helps enterprises unlock significant value by enabling more accurate, forward-looking decision-making. You will work on novel technical challenges in large-scale model development and contribute to technology that is changing how major organisations operate. This is an opportunity to join a category-defining company at an early stage and help shape its trajectory.
Location & compensationLocation: Barcelona, Spain

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Salary: Up to €150,000 (plus equity)
Industry:



Technology
Key responsibilities
- Profile end-to-end distributed training runs to identify bottlenecks across compute, GPU memory, and inter-GPU communication.
- Influence architectural decisions to improve efficiency and reliability of large-scale training jobs, including developing Triton/CUDA kernels when needed.
- Design and implement model scaling, parallelisation, and memory optimisation techniques for training workloads with very large context sizes.
- Collaborate closely with ML Researchers to diagnose architectural inefficiencies, ensure new research ideas scale efficiently in practice, and share internal knowledge on optimisation.
- Drive productionisation and serving of models from the research side, including improving inference efficiency via techniques such as quantisation.

Qualifications
- Must have strong understanding of modern ML architectures and large-scale training pip

📌 Senior Applied Research Engineer | Barcelona | Up to €150k (Madrid)
🏢 Source Technology
📍 Madrid