Application Refactoring · IT Operations Automation
Virgin Atlantic needed to ship a customer-facing mobile app under a fixed holiday deadline, improve software quality, and refactor legacy systems faster without increasing launch risk for operational airline services.
Reported impact
Virgin Atlantic launched its app on time with near-complete test coverage and zero P1 defects, dramatically reduced legacy refactoring effort, and enabled more teams to prototype internal tools without waiting on a central engineering queue.
Virgin Atlantic embedded Codex into digital engineering and data workflows to improve delivery speed and confidence on both customer apps and legacy systems. For its revamped mobile app, the team used Codex to strengthen test coverage, refactor code, and reach near-complete unit testing before releasing first in beta over Christmas and then in production weeks later with zero P1 defects. The same assistant is now used to shrink and modernize long-lived codebases, turning refactors that once took weeks into work that can finish in under an hour. Codex also helps analyst teams and other business units build prototype applications directly on top of the airline’s core data warehouse, extending AI-assisted development beyond engineering into planning, customer-experience, and maintenance functions.
Mobile-app requirements, legacy code, and migration tasks are fed into Codex so teams can generate refactors and strengthen test coverage before launch. Analysts also connect warehouse-backed data work to Codex-generated prototypes that business teams then review and expand.
"Codebases the team had maintained for years are now being refactored in hours instead of weeks."
"We’re seeing in some instances anywhere from 78 to 80% reduction in codebase size from utilizing Codex"
"With the help of Codex, the team was able to hit the window with near-complete unit test coverage and zero P1 defects at launch."
"You can develop that data through to a prototype in a matter of literally a couple of hours"
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