Gavin has 20 years’ experience writing software in regulated environments and for global organisations. The last five years of his development career were spent with a focus on security, becoming the security lead for a significant payments project at a FTSE 100 company. He has experience with languages from COBOL to .Net and now often finds those skills useful when developing with Python. Gavin's experience of software security revealed a passion for security, leading him to become a speaker and blogger on the subject. Gavin holds the Certified Secure Software Lifecycle Professional (CSSLP) and Scrum Master certifications and is a chapter officer at his local chapter of (ISC)2, giving him the opportunity to help build his local security community. Gavin is now part of a Red Team, using his defensive knowledge to aid offensive security work.