**Overview**

Our team is at the forefront of transforming digital advertising through intelligent automation and large-scale optimization. We design and build the **auto-bidding platform** that powers real-time ad auctions across Microsoft’s marketplaces—leveraging cutting-edge **AI, machine learning, and large-scale distributed systems** to bid on behalf of millions of advertisers.Our systems process **billions of auction events daily** , optimizing bids in milliseconds to maximize performance and return on ad spend. Engineers and scientists work hand-in-hand, blending **algorithmic innovation, reinforcement learning, and large-scale data pipelines** to create the intelligence that drives Microsoft Advertising’s success.We’re looking for a **Principal Software Engineer** who thrives at the intersection of **AI systems, real-time decision-making, and scalable cloud infrastructure** . You’ll help shape the next generation of our **agentic auto-bidding platform** — o...