Software Development Engineer II

At Expedia Group, we help travelers explore the world, one journey at a time. As a global travel company powered by passionate people, trusted partnerships, and leading technology, we connect travelers, partners, and advertisers through our consumer brands, B2B network, and travel advertising business. Here, you'll do meaningful work that helps millions of people discover, book, and experience travel with more ease, confidence, and joy. Our five Behaviors-Traveler First, Think Big, Operate with Excellence, Ownership Mindset, and Succeed Together-help foster a supportive environment where people can grow their careers and have the flexibility, benefits, and support to do their best work. Join us and build for travelers everywhere. Introduction to Team Our Technology Team partners with teams across Expedia Group to create innovative products, services, and tools to deliver high-quality experiences for travelers, partners, and our employees. A singular technology platform powered by data and machine learning provides secure, differentiated, and personalized experiences that drive loyalty and traveler satisfaction. This Software Development engineer II role is part of the Agentic AI & Trip Planning team which sits within our Technology division. Due to limitations in the available internal documentation, we do not have an approved, specific description of the Agentic AI & Trip Planning team’s mission and scope to include here without making assumptions. Similarly, the detailed job profile content that defines the main impact of the Software Development engineer II role could not be located from the provided sources, so we are unable to accurately add that single impact sentence at this time without introducing unverified information. In this role, you will: Design, develop, test, and maintain high‑quality software services and components, including system design (LLD), API design, and data modeling, that solve clearly defined customer and business problems. Collaborate with peers, product, and design to break down requirements into technical solutions, estimate effort, and deliver incremental value through iterative development. Write clean, readable, and maintainable code, including unit, integration, and end‑to‑end tests, and participate in code reviews to improve quality and share knowledge. Operate and support the services you build by monitoring health, investigating production issues, and contributing to improvements in reliability, performance, and security. Work across multiple domains or services as needed, learning new technologies and tools to contribute where the team and organization have the greatest need. Safely integrate and operate AI/ML‑enabled solutions that improve outcomes, including familiarity with AI‑driven systems, tools, or workflows and applying AI/ML concepts to real world products.

Bachelor’s degree in Computer Science, Engineering, or a related technical field, or equivalent practical experience. Professional software development experience, typically 2–5 years, building, testing, and maintaining production services or applications. Experience owning features or components within a service or application, including implementation, testing, and operational support. Proficiency in at least one modern programming language and ecosystem, with experience in system design (LLD), API design, and data modeling. Familiarity with AI‑driven systems, tools, or workflows and applying AI/ML concepts to real world products.

Experience designing and evolving services or components that operate at scale, with attention to performance, resilience, and observability. Demonstrated ability to take technical ownership of a feature area or service, including participating in architectural discussions and driving improvements over time. Strong focus on operational excellence, including improving deployment pipelines, monitoring, alerting, and incident