Principal Software Engineer

Join the Microsoft Turing Team and help shape the future of enterprise productivity through cutting-edge AI. We are responsible for the core systems that power the Microsoft 365 Chat Copilot for enterprise – a groundbreaking AI assistant used by hundreds of millions of users around the world. As an engineer on our team, you’ll work side by side with world-class scientists and developers to bring large language models (LLMs) to life, at enterprise scale. We’re not just training and applying models — we’re building intelligent systems that run them. This is your chance to engineer the critical infrastructure, platforms, and features that power the Microsoft Copilot — with a direct impact on how the world works. Recent launches like Analyst Agent in Microsoft 365 Copilot | Microsoft Community Hub showcase the breadth and depth of the impact you’ll help drive across the stack. The Microsoft Turing team is an innovative engineering and research team working on state-of-the-art deep learning models to power end user experiences across the company. Software Engineers and Applied Scientists in the Turing team work together to push the boundaries of large-scale deep learning models on the Microsoft 365 Core world-class distributed training infrastructure. As a Principal Software Engineer in the Turing team, you will leverage your skills and experience to help build the platform that powers enterprise Microsoft’s Copilots. You will work closely with applied scientists and engineers on building and designing both backend platform capabilities as well as core copilot scenarios aimed at delighting our customers. You will be responsible for building scalable, performant, and cutting-edge features. This involves defining the architecture, implementation plan, ensuring everything is tested and robust, and improving processes to contribute to our best practices. We’re solving some of the most technically demanding problems in distributed systems, language models, and production-scale AI. Whether you're passionate about finding innovative uses to apply AI, systems design, intelligent orchestration and reasoning systems, or building resilient services — this is the team where engineers thrive. 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.