Senior Software Development Engineer

11105 Expedia, Inc.; Seattle (WA); On-site; USD 180,000 - 240,000; Full time

Job summary

Expedia Group is seeking a Senior Software Development Engineer for the Air Supply team to design, build, and evolve backend services and customer experiences in Java. You will own end‑to‑end lifecycle, implement robust backend code, and collaborate with cross‑functional teams to translate business requirements into scalable solutions.

AI/ML concepts will be applied to real‑world travel products. The role emphasizes data‑driven decision making, reliability, and operating in a fast‑paced tech

Qualifications

• Bachelor's degree or equivalent professional experience.
• 8+ years of relevant backend or production experience.

Responsibilities

• Design, build, and evolve backend services and APIs for scalable, secure solutions.
• Implement high‑quality backend code with observability and reliability.
• Collaborate with product, design, and partner teams to translate requirements into robust backend solutions.
• Own end‑to‑end lifecycle of services including testing, deployment, monitoring, and incident resolution.
• Apply data‑driven approaches to optimize performance and user experience across Java systems.
• Safely integrate and operate AI/ML‑enabled solutions in real-world products.

Skills

Java

API design

Data modeling

Backend development

AI/ML concepts

Education

Bachelor's degree in Computer Science or related field

Job description

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 the 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 Senior Software Development Engineer role is part of the Air Supply team which sits within our Technology division. Air Supply unifies and elevates Expedia Group's air supply platform across brands and partners, deepening integrations with airline and distribution systems (such as NDC and aggregators) to deliver a trusted, high‑converting, and cost‑efficient air shopping and booking experience.

In this role you will:

• Design, build, and evolve backend services and customer experiences in Java, including system design (LLD), API design, and data modeling for scalable, secure, and reliable solutions.
• Implement high‑quality backend code and supporting service components in Java, ensuring maintainability, observability, and operational excellence across multiple services and domains.
• Collaborate with product, design, and partner engineering teams to translate business and customer requirements into robust backend solutions and reusable service integrations.
• Own and improve the end‑to‑end lifecycle of backend services and features, including development, automated testing, deployment, monitoring, and incident resolution.
• Apply data‑driven approaches to prioritize work, validate hypotheses, and continuously optimize service performance, reliability, and user experience across Java‑based systems.
• 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.

Minimum Qualifications

• Bachelor's degree in Computer Science or a related technical field
• Equivalent related professional experience
• 8+ years of relevant professional experience building and operating production backend or full‑