Microsoft Teams is seeking a Principal Software Engineer to join their mobile development team, focusing on Android and iOS platforms. This role is critical in developing and enhancing the Teams calling solution, which has seen tremendous growth in the era of hybrid work. The position offers an opportunity to work on mission-critical products used by institutions worldwide, tackling complex challenges in team calling, meetings, collaboration, and productivity spaces. The ideal candidate will lead mobile development initiatives, optimize application performance, and drive architectural decisions that impact millions of users. Working in Microsoft's collaborative environment, you'll have the chance to influence product engineering decisions while maintaining a focus on delivering exceptional user experiences. The role combines technical leadership with hands-on development, requiring expertise in mobile platforms and a passion for creating scalable, high-performance applications. This position offers competitive benefits, professional growth opportunities, and the chance to work with cutting-edge technologies in a dynamic, fast-paced environment.