Glen has spent his working life involved in Policing and Security, he fell into Policing of a fashion joining the RAF Police in 1998 when he discovered University was expensive and as such he was running out of funds.‍

During his time in the RAFP Glen was employed all aspects of policing finally settling into the role of Counter Intelligence, responsible for carrying out Counter Espionage and Counter Terrorism duties for the RAF at home and abroad in some notable locations some you’d want to go on holiday to but most you wouldn’t. Glen parted ways with the RAF as a regular in 2012 as part of the Strategic Defence Review of that year, and began his journey into the private sector with stops at Fujitsu Defence and National Security as their Head of Operational Security & Risk Management, before moving to Sopra Steria as Head of Operational Security for Government accounts.‍ In 2016 he moved to the Prince’s Trust taking up the role of Chief Security and Risk Officer as well as being appointed as the DPO in 2017. After a successful tenure at The Prince’s Trust during which he introduced both GDPR and Cyber Essentials Plus at the organisation he moved to Save The Children International where he was the Global Chief Information Security Officer and Head of Data Protection. In May 2021 he moved to the Cabinet Office where he is the Head of Data Privacy and Compliance.

When he is not doing this he is an advocate for all things Cyber Security and Data Protection especially getting the basics right, as from the basics comes good security and data protection so to that end he is also the Chair of the Founding members board for the South East Cyber Resilience Centre.