In the last decade, Pfizer’s engineering organizations grew rapidly to support unprecedented innovation. Now, Pfizer is embarking on an ambitious transformation journey to “the future of development,” an initiative to increase software quality, security, developer experience, and engineering organization health. We’ll examine the impact that Pfizer’s rapid growth had on their engineering culture, learn what signals indicated that it was time for a focused effort to recommit to an engineering culture of excellence, and track their progress against key metrics like DORA, attrition, budget, and quality. This initiative to reinvigorate engineering culture is ongoing, so the audience will get a report of successes, failures, and pivots almost as they happen.