Principal Software Engineer – AI and Search Platform Team

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<div class="isg-job-description“>OverviewArtificial Intelligence (AI) is transforming the world, and the best is yet to come! At Microsoft AI, we are at the forefront of enhancing AI capabilities and making them accessible to everyone. In this exciting project within the AI and Search team, you will build a platform to provide Large Language Models (LLMs) with up-to-date information from the web to reduce hallucinations, allow answering questions beyond the training data and increase users confidence by returning links that confirm the model’s answer.Our team of engineers is dedicated to working on the latest technological trends in Search, AI, Agents, responsible AI, security, and privacy. We strive to take the best ideas and turn them into innovative business strategies and products.We are seeking a highly skilled, motivated Principal Software Engineer to evangelize and build APIs that power the agentic web. In this role, you will drive customer focused feature development, onboard partners, and support strategic relationships in a fast-paced environment while maintaining high energy, professionalism, and a passion for innovation.The ideal candidate will have technical expertise across the full product lifecycle, preferably in platforms, APIs, and schemas, combined with solid partnership, collaboration, and agile project management skills. In this role, you will be responsible for designing, developing, and deploying products and services to address complex business challenges. The candidate must understand customer technical requirements, quickly collaborate with partners to determine how best to leverage our systems, and translate those requirements into solutions demonstrating thought leadership with others in the engineering team. They should be data-driven, able to work independently, remove obstacles, embrace change, and thrive in ambiguous environments. A high level of integrity and a consistent, positive “can-do” attitude are essential, along with the ability to maintain confidentiality of highly sensitive information. 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. Starting January 26, 2026, Microsoft AI (MAI) employees who live within a 50- mile commute of a designated Microsoft office in the U.S. or 25-mile commute of a non-U.S., country-specific location are expected to work from the office at least four days per week. This expectation is subject to local law and may vary by jurisdiction.
ResponsibilitiesWork on the delivery of high-quality services that will power AI and Search experiences across products.Ensure the quality, scalability, reliability, security, and maintainability of services.Participate in design and code reviews, and contribute to the development of a clean, well-documented codebase.Stay current with the latest developments in AI, Search and development, and bring innovative ideas and insights to the team.Help other team members plan and execute technical deliverables with the required quality.Participate in the success of internal and external partner relationships.Coordinate and orchestrate product requirements gathered from partners.

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