Alex Kleyn spent three years at Norwich City initially as a statistician before becoming Technical Scouting Data Analyst

In September 2017 he moved to Southampton as Data Analyst before being promoted to Lead Data Scientist in January 2019.

In March 2023 he was recruited by Manchester United to work in their data science department. United have embarked on the process of recruiting data scientists, machine learning scientists, analysts and engineers as they bid to become “dominant” in data science. Director of Data Science Dominic Jordan, who was appointed in October 2021 with the remit of "driving forward the club’s use of data to help players and staff deliver success on the pitch", is heading up the department and leading the recruitment drive.