Summary
Sergio Sierra is a data science and AI leader based in Madrid with 8 years of experience applying NLP, Generative AI and production LLMs to improve operations and customer experience at enterprise scale. He currently drives LLM integrations and automated ticket routing at Adyen, having previously built AVMs, geospatial and computer-vision pipelines, and forecasting and recommender systems at JLL. Comfortable across the ML lifecycle, he operationalizes models with PySpark, MLflow, Airflow, Docker/K8s and cloud tooling while teaching data science and AI ethics as a lecturer. His background in telecommunications engineering and hands-on network analytics at Huawei and Weplan give him uncommon strength in large-scale, real-world data and systems engineering. Colleagues value him for translating research-grade NLP into reliable production services and for creating internal training and knowledge-sharing across teams.
8 years of coding experience
6 years of employment as a software developer
Master in Data Science, Master in Data Science at KSchool
Spanish Technical Baccalaureate, Spanish Technical Baccalaureate at Cardenal Herrera Oria High School
Postgraduate in Virtual, Augmented, and Mixed Reality Development, Postgraduate in Virtual, Augmented, and Mixed Reality Development at U-tad
Master of Science in Computer Science (Erasmus), Ingeniería informática, 1.36 (scale 5-1, 1: best grade), Master of Science in Computer Science (Erasmus), Ingeniería informática, 1.36 (scale 5-1, 1: best grade) at Rheinische Friedrich-Wilhelms-Universität Bonn
Bachelor of Engineering in Telecommunication Technologies and Services (BETTS), Ingeniería de telecomunicaciones, Bachelor of Engineering in Telecommunication Technologies and Services (BETTS), Ingeniería de telecomunicaciones at Universidad Politécnica de Madrid
Data Science, Data Science at Data Science self-study (Coursera, Kaggle, webinars, books, scientific papers)
English, Spanish, German