Now more than ever, we live in an age where AI and Cloud Services are empowering people around the world to achieve more. Behind these innovative services exists a critical infrastructure that is bringing them to life. The Search & AI Platform is building that foundation which makes Bing and Copilot possible on a global scale. Our product is impacting individual's lives in scenarios such as Web Search, AI chat, AI grounding, and local deal finding.

As a Principal Software Engineer on the Search & AI Platform team you will be collaborating in building the deep learning inferencing system using in-house and open-source technologies, and working on performance analysis, key components scaling up, distributed system debugging, and new feature/algorithm development. You will be hands-on in a massively scaled and distributed system, and a wide range of CPU and GPU hardware.

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, MAI employees are expected to work from a designated Microsoft office at least four days a week if they live within 50 miles (U.S.) or 25 miles (non-U.S., country-specific) of that location. This expectation is subject to local law and may vary by jurisdiction.