The Content Services Verticals team is seeking a Senior Software Engineer to drive the development of next-generation systems for Microsoft Start. This role offers the opportunity to collaborate across teams within Start, as well as with Edge, Windows, Xbox, Bing, and other divisions, to build scalable and high-performance backend services that power user-facing experiences. In addition to distributed backend engineering, this role emphasizes expertise in building applications using large language models (LLMs), designing evaluation frameworks, and advancing prompt engineering to create intelligent, adaptive, and reliable user experiences.

As a Senior Software Engineer, you will design, implement, and optimize services, APIs, and infrastructure to support the evolving needs of our platform. You’ll work closely with cross-functional teams—including product managers, applied scientists, and frontend developers—to ensure seamless integration and exceptional performance. From system architecture and data modeling to LLM-powered service design, eval writing, and deployment automation, you will play a key role in shaping the technical roadmap. This role requires a highly proactive mindset: taking initiative, working in agile environments, and driving innovation end-to-end to deliver scalable, maintainable, and forward-looking solutions.

Microsoft’s mission is to empower every person and every organization on the planet to achieve more. As employees we come together with a growth mindset, innovate to empower others, and collaborate to realize our shared goals. Each day we build on our values of respect, integrity, and accountability to create a culture of inclusion where everyone can thrive at work and beyond.