We are looking for a Machine Learning Engineer / AI Engineer to join an international team working on Machine Learning, NLP and Generative AI solutions.
You will be part of a small squad of 5–6 people working across different AI projects, including solutions such as GenAI-powered assistants and chatbots.
This is a highly hands-on role: more than 90% of your time will be focused on coding, developing ML solutions and designing technical solutions, working closely with other Machine Learning and Engineering profiles.
We are looking for someone with a strong Python and Machine Learning engineering background, ideally with experience taking AI/ML solutions into production.
What you'll do

Develop and implement Machine Learning and AI solutions using Python.
Work on NLP, Generative AI and/or LLM-based projects.
Design and develop ML solutions from experimentation through to production.
Work with data processing and ML libraries such as pandas, scikit-learn and PyTorch.
Evaluate ML models and systems using appropriate performance metrics.
Contribute to production-ready code following Git,



Pull Request and code review practices.
Collaborate with Machine Learning Engineers and other technical profiles to move models and solutions into production.
Participate in the design of technical solutions and end-to-end ML pipelines.
Explore and evaluate new approaches and technologies in AI/ML.
Work in an international environment where English is the main language of communication.

Must Have

3–5 years of professional experience in Machine Learning, AI Engineering, Data Science or Software Engineering with a recent transition into AI/ML.
Strong Python programming skills and experience developing structured, maintainable code.
Hands‑on experience with Machine Learning models and libraries, such as scikit‑learn, PyTorch or similar.
Experience working with NLP, Generative AI or LLM technologies.
Experience developing production‑ready ML/AI solutions or working closely with teams respo

📌 Machine Learning Engineer (Barcelona)
🏢 Capitole
📍 Barcelona