Hi, I’m Mai, a staff engineer based in Spain. I’m an AI research engineer at XBOW, working on AI for offensive security.
I build robust AI systems, with security as the field I’ve decided to deep dive into: from identity security at Auth0 to LLM security in my PhD.
Here I write about AI engineering and cybersecurity: practical, no hype.
Experience
- AI Research Engineer, XBOW · 2026–now
AI for offensive security: safety, benchmarks and red teaming. - Zapier · 2025–2026
LLM gateway serving 10M+ requests per day to 10+ internal teams, critical to Zapier’s day-to-day operations.
Led a team through the migration, the technical requirements gathering and the comparison of LLM gateway providers. - Staff Software Engineer, AI teams, Phaidra · 2024–2025
AI agents that control industrial facilities like data centres in real time.
Reported directly to a director, led 10+ people across squads and initiatives, and worked closely with research. - Auth0 / Okta · 2021–2024
Senior ML Engineer → Staff ML Engineer & Tech Lead
Machine learning for identity security, from detection models to the MLOps platform that ships them.
Joined as the 4th person on the team and ended up technically leading 3 teams, 12 people in total, reporting to a director. - Data Scientist, Glovo · 2020–2021
End-to-end models for the courier app.
Education
- PhD, Universidad Complutense de Madrid · 2023–now
Started on fake news detection, restarting in 2026 on LLM security. - MSc in Mathematics and Computation, Universitat Oberta de Catalunya · 2019
Publications
- Detecting SQL Injection Attacks using Machine Learning
B. Moissinac, E. Saad, M. Clay, M. Berrondo (Okta) · CAMLIS 2023 - Application of Artificial Intelligence Techniques to Detect Fake News: A Review
M. Berrondo-Otermin, A. Sarasa-Cabezuelo · Electronics, 2023 · PhD research
Talks, Open Source & Community
- ¿Cómo montar un sistema de experimentación con mlflow?
Talk at PyConES 2023 · in Spanish - The Neural Maze by Miguel Otero Pedrido
Guest articles: Why AI doesn’t make you better and You Didn’t Fix the Model. You Memorized the Failure. · 2026 - any-llm by Mozilla AI
Requested custom header forwarding in the gateway (#669), shipped in #707 - inverted-index
Inverted index algorithm implemented in Rust - Saturdays.AI
Mentor since the programme started in Donostia & Bilbao in 2019
…and more on GitHub.