Workday is seeking a Senior Software Development Engineer to join their UI Platform team, focusing on empowering product developers to build fast, scalable, and resilient user experiences. This role is part of the core engine behind UI at Workday, responsible for designing and maintaining foundational services, libraries, and frameworks used across the entire product surface. The position requires a blend of hands-on development, technical leadership, and cross-team collaboration. The team owns essential backend services and developer tooling while partnering with other engineering teams to drive service health, observability, and scalability improvements. This role specifically supports U.S. Federal Government contracts and requires U.S. citizenship. The position offers a competitive salary range of $153,600 - $230,400 USD, along with comprehensive benefits including bonus plans and stock grants. Workday promotes a flexible work environment where team members spend at least 50% of their time quarterly in the office or field. The company values diversity, inclusion, and creating a safe space where all people and ideas are welcomed.