Software Development Engineer III, Advertising Technology

Expedia Group is a leader in global travel technology, creating innovative solutions for partners and travelers alike. They are seeking a Software Development Engineer III to join their Advertising Technology team, responsible for building real-time ad delivery systems that enhance ad ranking and optimize advertiser reach.

Responsibilities:

• Optimize bidding, ranking and pacing for guaranteed and non-guaranteed ad delivery to surface more relevant ads and expand advertiser reach to travelers
• Build and scale systems that support ad serving and ad selection across Expedia Group’s advertising network
• Apply strong software design principles, algorithms, and data structures to build scalable, low-latency, high-throughput services
• Work closely with Product, ML data scientists and data teams on features such as relevance optimization, targeting, and performance modeling
• Advocate for high-quality code, automated testing, and strong observability practices
• Participate in operational reviews and drive continuous improvement
• Mentor junior engineers, lead design discussions, and help elevate the technical bar of the team