At ProRail's IT Logistics department, Aaron worked on the (IT) implementation of TimeTable Redesign, a multi-year project to simplify, unify, and solidify improvements to the European rail timetabling as part of EU efforts concerning the Green Deal. Aaron switched to the Capacity Management department in 2023. His current work is focused on researching the necessary investments in rail to support the projected growth in the railway sector from 2025 to 2030.