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Sean O’Sullivan

Group Head of IT


Sean is primarily responsible for the IT infrastructure, services and systems across Cintra and the wider Group. Sean works closely with our Head of Compliance, to ensure we’re not only fully compliant but a force to be reckoned with in the industry.


Sean is a Full Member of the Chartered Institute of Information Security and has 15 years experience in IT, specifically in payroll and HR. Sean joined Cintra in 2006 as an IT Technician, becoming the IT Manager in 2013. In 2021 he was promoted to the Head of IT for the Group.

Sean is experienced in compliance (ISAE 3402, ISO 9001 and ISO 27001), business continuity, and cloud compute. Successful projects include taking over the stewardship of Cintra’s SaaS cloud environment and overhauling the internal IT operations, making Cintra  more resilient and efficient.


Sean is always trying to find ways for technology to make the lives of our colleagues and our clients better, whether that’s through integrations, standardisation or trying new things.


Sean is a fan of gaming and says he’s sunk far too many hours into Assassins Creed and Tomb Raider over the years! He also loves to get out on his bike whenever he can.

He is a devoted family man, with a wonderful wife, two fantastic children and an adorable cat. 

In his spare time he’s produced some iMessage sticker packs and a web browser extension. He’s also working on his first novel.


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