Microsoft's M365 Core Semantic Fabric Platform team is revolutionizing enterprise data management in the era of Large Language Models. We're building a cutting-edge semantic index for M365 that powers Microsoft Copilot's ability to understand and utilize enterprise data effectively. As a Software Engineer II, you'll work on scalable ingestion pipelines and indexing solutions at exabyte scale, ensuring interactive freshness and low-latency access to enterprise content. This role offers the opportunity to work with advanced technologies including LLMs, semantic search, and retrieval-augmented generation (RAG) while directly impacting millions of users globally. The position offers competitive compensation, comprehensive benefits, and the chance to work in a hybrid environment with up to 50% work from home flexibility. You'll join a diverse, inclusive team that values work-life balance and innovation, contributing to Microsoft's mission of empowering every person and organization on the planet to achieve more. The role requires strong technical skills in backend development, system design, and data structures, with opportunities for growth and learning in the rapidly evolving field of AI and enterprise software.