Mobile devices have become an integral part of daily life, with powerful hardware and numerous mobile apps available. However, this rapid innovation cycle poses significant challenges for mobile development and testing teams in large-scale companies. Establishing a clear vision and strategy is crucial to scaling development and testing practices. This includes defining technical goals, identifying target customers, and establishing the right talent and processes. The biggest challenge when scaling mobile development and testing is finding and hiring the right talent with the right mindset, followed by defining standards and processes, effective communication, and scaling infrastructure. Once these challenges are addressed, shipping new features becomes the top priority, requiring high-quality code that consumes power efficiently, works within data limits, and prioritizes security. By maintaining a focus on quality, communication, infrastructure, talent, and security, companies can transform into mobile-first organizations.