How Virgin Atlantic ships faster with Codex

Virgin Atlantic successfully utilized Codex to ship its revamped mobile app in time for the Christmas travel deadline, achieving near-complete unit test coverage and zero P1 defects at launch. According to Neil Letchford, VP of Digital Engineering, the airline avoided traditional compromises on scope or testing under deadline pressure. Beyond the mobile app launch, Codex is helping Virgin Atlantic refactor years of legacy code dramatically faster. Letchford noted that codebases maintained for years are now being refactored in hours instead of weeks, with instances showing a 78 to 80 percent reduction in codebase size. This velocity has occasionally outpaced the rest of the delivery process, leading to situations where front-end applications were built from Figma prototypes faster than backend tickets could be prepared. On the data side, Richard Masters, VP of Data and AI, stated that Codex has unblocked and de-risked database migrations onto the core data warehouse. Analyst teams across network planning, customer experience, and engineering are now using Codex to prototype internal applications directly against the data warehouse in a matter of hours, rather than routing requests through a central team. Letchford highlighted that the company's next challenge is figuring out how to scale this increased velocity across the entire software development lifecycle rather than just in isolated pockets.