We're looking for an AI/ML Engineer to join a integral leader in HR technology — a team building Generative AI assistants used across global markets. This is a hands-on engineering role , where focus is shipping GenAI/NLP models to production in Python , working shoulder-to-shoulder with MLEs inside a lean 5–6 person squad across 3–4 projects. Building production-ready GenAI/LLM features — chatbot assistants and NLP systems, from prototype to production.

Writing structured, quality Python with real engineering discipline: PR practices, Git, CI/CD, Docker . Designing end-to-end NLP pipelines — data processing, model development, evaluation, deployment. Getting hands-on with LLMs, embeddings and modern GenAI tooling (OpenAI, AWS Bedrock).

Brings 3–5 years of experience building production features/systems with AI/ML . Writes advanced, production-grade Python — not notebook scripting. Has worked on real NLP / GenAI / LLM projects and can explain them in depth — embeddings, evaluation metrics beyond accuracy, how they assessed system performance.





Thinks like an ML engineer : moves models to production, understands the full pipeline, applies solid coding practices ( Git, PR, CI/CD, Docker ). Knows their way around ML libraries (scikit-learn, PyTorch) and data processing (pandas). ✅ Familiarity with AWS infrastructure (S3, Lambda, Bedrock). Understanding of data augmentation, bias and training pipelines . A Software Engineering background with a recent move into AI/ML.

Hybrid: 1–2 days in the office). ️ Language : English C1 (Fluent, all team communication is in English). An individual training budget of €1,200 for whatever you choose: events, books, certifications or courses. Flexible working hours to balance your professional and personal life. ⚖️ Private health insurance fully paid by Capitole. ⚕️ Discounts on major brands for employees (Club Capitole). ️ Capitole | Empowering people, unlocking technology innovation

📌 Machine Learning Engineering (Barcelona)
🏢 Capitole
📍 Barcelona