Software Development Engineer III

Expedia Group brands power global travel for everyone, everywhere. We design cutting‑edge tech to make travel smoother and more memorable, and we create groundbreaking solutions for our partners. Our diverse, vibrant, and welcoming community is essential in driving our success.

To shape the future of travel, people must come first. Guided by our Values and Leadership Agreements, we foster an open culture where everyone belongs, differences are celebrated and know that when one of us wins, we all win.

We provide a full benefits package, including exciting travel perks, generous time‑off, parental leave, a flexible work model (with some pretty cool offices), and career development resources, all to fuel our employees' passion for travel and ensure a rewarding career journey. We’re building a more open world. Join us.

Expedia Technology teams partner with our Product teams 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.

The Software Development Engineer III position is part of the Servicing team, which builds and supports Web and Native App traveler self‑service experiences for all Expedia brands and partners. In this role, you will design, build, and operate servicing experiences across web and native apps, collaborating closely with Product, XD, and Program Management.

You will contribute to the technical design and implementation of scalable services and user experiences in the traveler Servicing space, including applying AI- and agentic‑driven capabilities to help travelers resolve their needs quickly and intuitively. As an SDE III, you will be a hands‑on engineer, owning features end‑to‑end and helping to elevate engineering practices on the team through high‑quality code, testing, and operational excellence.

• Design, build, and evolve highly available, performant, and secure services and applications, including system design (LLD), API design, and data modeling across multiple domains.
• Implement clean, maintainable, and well‑tested code, performing code reviews and providing technical guidance to improve code quality, reliability, and operational readiness.
• Own end‑to‑end delivery of features and services, including requirements refinement, technical design, implementation, testing, deployment, and ongoing support in production.
• Diagnose and resolve complex production issues, improve observability and resiliency, and drive continuous improvements in availability, latency, and cost efficiency.
• Collaborate with cross‑functional partners (product, program, design, analytics, operations) to translate business and customer requirements into scalable technical solutions that work across multiple product areas.
• 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 or a related technical field; or Equivalent related professional experience.
• 5+ years of relevant professional experience.
• Professional software development experience designing, implementing, and operating services or applications in at least one modern programming language and ecosystem.
• Demonstrated experience owning the end‑to‑end lifecycle of services or components, including system design, API design, data modeling, testing, deployment, and production support.
• Hands‑on experience with distributed systems, service‑oriented or microservice architectures, and working with data stores (relational and/or No
  
  SQL) and messaging or streaming technologies.

• 5+ years of full‑stack development experience across front‑end and back‑end services.
• Recent hands‑on experience building and operating Node.js + React‑based applications in production.
• Experience implementing and maintaining Graph
  
  QL‑based backends.
• Experience designing…