Viva Engage (formerly Yammer) is seeking a Principal Software Engineer to join their team driving innovation in enterprise communication and community building. The role involves leading large-scale distributed systems that connect millions of employees worldwide through communities. You'll be working with cutting-edge technologies including AI applications and Copilot, focusing on digital safety, security standards, and analytics. The tech stack includes Linux on Azure, GraphQL API gateway, various databases (Postgres, CosmosDB, Redis), and modern containerization with Kubernetes. This is an opportunity to shape the future of workplace communication while working with a team that deploys code daily to tens of millions of users. The position offers a hybrid work environment with up to 50% work from home flexibility and comprehensive benefits. The ideal candidate will bring extensive experience in distributed systems, microservices architecture, and a track record of leading major technical initiatives. This role combines technical leadership with hands-on development, requiring both deep technical expertise and strong mentorship abilities.