Microsoft's Viva Engage (formerly Yammer) is a premier enterprise communication platform connecting millions of employees worldwide through communities. The backend engineering team works on challenging problems supporting large-scale conversations and communities with hundreds of thousands of participants. The tech stack includes Linux on Azure, GraphQL API gateway, various databases (Postgres, CosmosDB, Redis), and modern container orchestration with Mesos and Kubernetes. The team is at the forefront of driving AI applications and Copilot adoption, focusing on digital safety, security standards, and analytics. Engineers deploy code daily to tens of millions of users, constantly innovating to improve the system and deliver exceptional experiences. The role offers opportunities to work with cutting-edge technologies, solve complex scalability challenges, and impact organizational culture globally. Microsoft provides a collaborative environment with a growth mindset, focusing on respect, integrity, and accountability.