6 days ago
Responsibilities
- Optimize bidding, ranking, and pacing for guaranteed and non-guaranteed advertising delivery.
- Build and scale systems supporting ad serving and ad selection across Expedia Group’s advertising network.
- Design scalable, low-latency, high-throughput backend services using strong software design principles, algorithms, and data structures.
- Collaborate with Product, Machine Learning, Data Science, and data teams on relevance optimization, targeting, and performance modeling.
- Integrate ML-driven signals, APIs, and services into backend advertising systems.
- Advocate for high-quality code, automated testing, observability, and operational improvement.
- Mentor junior engineers and lead design discussions.
Requirements
- Bachelor's or master's degree in Computer Science or a related technical field.
- 5+ years of backend software development experience.
- Experience with data-driven systems, ML-powered features, or A/B experimentation platforms.
- Strong proficiency in Java or Kotlin.
- Experience building and deploying backend APIs such as gRPC and streaming or batch data processing services such as Flink or Spark in cloud environments.
- Strong understanding of distributed systems, data flows, and operational best practices.
- Preferred: experience with search and retrieval systems, relevance ranking, vector databases, embeddings, AI or semantic search, agent-to-agent and multi-agent AI systems, or advertising, marketplace, e-commerce, or travel platforms.
Benefits
- Medical, dental, and vision coverage, paid time off, an Employee Assistance Program, wellness and travel reimbursement, travel discounts, and IATAN membership.
- Role is available in Chicago, Illinois, with a flexible work model requiring employees to be in the office at least three days per week.
- Relocation assistance is not available.
- Expedia Group provides an inclusive and accessible recruiting experience and supports accommodation requests.
Tech Stack
Categories
About Expedia
Expedia Group builds a global online travel marketplace where consumers book flights, hotels, vacation rentals, cars, and activities, and partners distribute and market inventory across its platform. It monetizes through commissions, merchant/agency models, and advertising via brands including Expedia, Hotels.com, and Vrbo. Founded in 1996 and headquartered in Seattle, the public company (NASDAQ: EXPE) serves travelers and partners in more than 70 countries with B2C, B2B, and ad tech offerings.