{"slug":"bt-group-writes-and-maintains-2-million-lines-of-code-a-year-using-amazon-q-developer","url":"https://findausecase.com/use-cases/bt-group-writes-and-maintains-2-million-lines-of-code-a-year-using-amazon-q-developer","title":"BT Group writes and maintains 2 million lines of code a year using Amazon Q Developer","description":"BT Group, a UK telecommunications company, rolled out Amazon Q Developer to around 2,000 active developers for AI-assisted coding, chat-based troubleshooting, automated unit test generation, and code transformation from older to newer, more secure versions.","company":"BT Group","industry":"Telecommunications","aiCapabilities":["Generative AI"],"technology":["Amazon Q Developer"],"deployment":"Public Cloud","problemStatement":"As software becomes more critical at BT Group, the company had to maintain good software engineering practices and workflows, and updating project code from older to newer, more secure versions often fell by the wayside because it took so much time.","solutionApproach":"BT Group implemented Amazon Q Developer, working with a dedicated AWS adoption team to train developers; developers use its in-console chat feature, unit test generation, in-line code suggestions, and code transformation capabilities that convert project code from older to newer, better-maintained versions.","businessValue":"Amazon Q Developer generates over 2 million lines of code per year for BT Group, compared with 2.5-3 million lines of code that developers previously produced annually, and acceptance rates doubled for any interaction that included the chat feature.","evidence":{"band":"high"},"sourceUrl":"https://aws.amazon.com/solutions/case-studies/bt-group-case-study/","dates":{"publishedAt":"2026-09-24T05:49:17.483Z","publishedAtSource":"pipeline","updatedAt":"2026-09-24T05:49:17.483Z"},"license":"Open for reading and citing with a link to https://findausecase.com/use-cases/bt-group-writes-and-maintains-2-million-lines-of-code-a-year-using-amazon-q-developer. Bulk republication requires permission."}