Principal Software Engineering Manager - Substrate efficiency

**Overview**

M365 Copilot inference is a high-impact engineering team advancing applied AI and large-scale machine learning across Microsoft. We design and operate the platform powering Microsoft 365 Copilot experiences, delivering intelligent capabilities to millions of users.

Our team owns one of the world’s largest AI inference platforms, operating at massive GPU scale across global datacenters. We build the core LLM API and routing services that enable low-latency, highly available AI experiences, and continuously push the boundaries of performance, scalability, and efficiency.
We are hiring a Principal Software Engineering Manager to lead a strategic initiative focused on maximizing throughput per GPU across the Copilot inference stack. This role is to drive inference engine efficiency by optimizing model execution and runtime performance, improving throughput per GPU, reducing cost per query, and unlocking capacity without additional hardware investment.
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