Software Development Engineer III, Advertising Technology

A Software Development Engineer III at Expedia Group's Advertising Technology team builds and operates real-time ad delivery systems that power ranking, auctions, and optimization at scale. The role involves collaborating with Product, Machine Learning, and Data Science teams to design scalable, high-throughput backend services that directly impact advertiser ROI and traveler experience. Key duties include optimizing bidding algorithms, integrating ML-driven signals, and mentoring junior engineers to maintain high code quality and system reliability.