Denis worked for three decades at the BBC, before joining IofC UK in 2024. As a Senior Producer in BBC Religion and Ethics, he made award-winning programmes in many countries for Radios 2, 3 and 4, BBC One and online. He also has wide experience of presentation and commentary on live events. In 2002 Denis moved into senior management as Network Manager for Radio 4, where his remit ranged across every aspect of network policy. In 2015, in addition to his role at Radio 4, he took on similar responsibilities for BBC Radio 3 and the Proms Festival before retiring from the BBC in 2023.

Before his media career, Denis studied theology and philosophy in Rome at the Gregorian University.  He is a qualified commercial mediator and executive coach. He also has pro-bono responsibilities as Chair of Governors for St George’s Weybridge, the UK’s largest Catholic independent school.