Jack Chandler

Data Engineer @Expedia Group

London, GB

Data Engineer / II / IDeveloped and maintained a robust Marketing Tech platform using Python, Spark, and Airflow on AWS EMR, supporting global marketing campaigns and analytics.Led MLOps practices, deploying, monitoring, and scaling 100+ machine learning models with CI/CD, Flyte orchestration, and S3 storage, ensuring reliable daily model refreshes.Directly managed multiple Machine Learning Engineers as well as mentored several junior engineers across the company.Designed and implemented large-scale data warehouse solutions, integrating 2TB+ of multi-source marketing data to guide $0.5–$1B in annual advertising spend.Built and optimised Airflow DAGs and monitoring tools to automate data pipelines, serving close to a billion data points per day and controlling $85M in yearly marketing spend.Spearheaded process improvements and cloud migration projects, including the seamless transfer of 15TB of data from on-premises to AWS S3, and mentored junior engineers on best practices.

University of Newcastle-upon-Tyne

Masters