AI Experience

I help teams deploy AI that lasts.

7+ years across production ML, AI governance at scale, software & quality standards, and GenAI systems.

Overview

I’m an AI technical leader with 7+ years of experience building and scaling AI systems—from traditional ML systems to LLM-based and agentic systems. I have also a passion for software & AI quality where I have helped build, launch and scale AI quality & governance frameworks at org scale.

My work is at the intersection of scientific depth and engineering excellence: identifying the right modeling methods for the problem at hand, along with how to build, measure, monitor, and continuously improve AI systems across teams.

What I work on

  • GenAI systems: building and evaluating GenAI production applications at scale, with a focus in LLM-based agents.
  • ML Ops: Operational excellence including testing, retraining, monitoring and maintenance of production systems.
  • AI governance: launching AI governance frameworks that make AI systems more reliable, safer, and responsible.
  • AI quality & maturity: defining “what good looks like”, setting development standards, and enabling teams to improve over time.

Experience

Sorted by start date

Booking.com

Senior Machine Learning Scientist II

Aug 2023 — Present

Amsterdam, NL

Technical leader for the scientific aspects of AI Agents.

Generative AIAI AgentsLLM evaluation
  • Designed and built a system to power AI agents with Long Term Memory capabilities.
  • Researched and implemented test-time compute techniques for AI agents.
  • Wrote and promoted development guidelines for AI agents.
  • Co-designed adn developed an evaluation framework for GenAI applications used to assess all the GenAI production systems across the org.
  • Built an in-house agentic Text-To-SQL system that helped to augment the knowledge base of a production LLM and improve the relevance of its context up to 50%.

Booking.com

Senior Machine Learning Scientist I

Jul 2021 — Aug 2023

Amsterdam, NL

Technical leader of Machine Learning Excellence, improving ML quality and standards across the organization.

ML qualityMLOpsMonitoring & ObservabilitySoftware Quality
  • Led ML excellence initiatives to improve quality and maintainability of ML systems. Supervised a working group with a team of 10+ ML scientists and engineers, including seniors and managers.
  • Supported the creation, launch and adoption of an AI Governance framework across the organization.
  • Reviewed, tested and supported the adoption of 3rd party AI governance tooling.
  • Built, launched and promoted an ML Quality & Maturity framework that helps practitioners deliver high-quality systems with less effort.
  • Documented and promoted ML best practices (e.g., CI/CD, retraining schemes, monitoring, fairness, ownership).

Booking.com

Machine Learning Scientist

Oct 2018 — Jul 2021

Amsterdam, NL

Built end-to-end ML systems in Customer Service ML, focusing on cost reduction, efficiency, and enhanced customer experience.

Production MLMLOpsML FairnessA/B testing
  • Built and productionized ML systems end-to-end (problem formulation → data pipelines → modeling → deployment → monitoring → retraining).
  • Led the development of ML Quality Guidelines & Best Practices in Customer Service ML, which resulted in significant increase of code quality (such as unit testing, unified code style) in the department’s Git repositories.
  • Led the research and development of an in-house Python library for bias detection & mitigation (ML Fairness).

Booking.com

Machine Learning Intern

Feb 2018 — Sep 2018

Amsterdam, NL

Started my ML journey at Booking.com, working on predicting customer loyalty using large-scale data.

InternshipBig dataSparkHadoopMachine LearningCustomer Loyalty
  • Delivered an end-to-end customer loyalty report and identified the main loyalty drivers that helped optimize workforce management.
  • Applied ML at scale using techniques such as Linear/Poisson Regression, Random Forest, Gradient Boosting Machines and frameworks like H2O and MLlib for distributed ML.
  • Extracted and manipulated data in the Hadoop ecosystem using Hive and Apache Spark.

Education

Sorted by start date

Vrije Universiteit Amsterdam

Master's degree, Business Analytics

Jan 2016 — Jan 2018

Amsterdam, NL

  • Interdisciplinary MSc combining data science, business optimization, and finance.
  • Focused on machine learning, deep learning, data mining, and applied optimization—translating business problems into measurable models.
  • Tools: Python/R, TensorFlow/Keras; Spark/Hive/SQL; MATLAB/VBA; LaTeX.

Aristotle University of Thessaloniki

Diploma, Electrical and Computer Engineering

Jan 2008 — Jan 2015

Thessaloniki, GR

  • Grade: GPA 7.02/10 (top 30% of class).
  • Activities and societies: IEEE.

Publications

Writing & Talks

I keep publications (and other public material) under Writing & Talks. Head there for the full list.