After a 20 year career within the software development space, Ceri was looking for a new challenge and moved into pen testing back in 2019. During that time he has created and contributed to several open source offensive tools such as Rubeus, BOFNET and SweetPotato and on the odd occasion contributed to projects on the defensive side too. After speaking at DEF CON 31 for the first-time last year, he is now back for more. He currently works as a red team operator and offensive security dev at Pen Test Partners.