Principal Software Development Engineer

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.

Principal Software Development Engineer

Introduction to team
Are you an experienced engineer passionate about building scalable, high-impact systems that power millions of traveler decisions every day?

Expedia Group’s Reviews Engineering team is looking for a Principal Engineer to shape the technical vision and architecture of our next-generation Reviews platform — the trusted engine that collects, curates, enriches, and distributes traveler-generated reviews across our brands and partners globally.

As part of the Content domain , the Reviews platform plays a mission-critical role: helping travelers make confident booking decisions and enabling partners to understand and improve their guest experience. You’ll lead the design of resilient, compliant, and intelligent systems that operate at global scale — ensuring trust, reliability, and innovation at the heart of Expedia’s marketplace.

In this role, you will:

• Architect and evolve the end-to-end Reviews platform to acquire, process, and surface high-quality traveler reviews across Expedia Group brands
• Drive technical strategy and platform modernization across all Reviews subdomains — Collection, Moderation, and Distribution — ensuring scalability, resilience, and compliance
• Define and influence cross-domain architecture , collaborating with teams across Content, Search, and Lodging to maximize data reuse and interoperability
• Lead system design for large-scale, low-latency services that power customer-facing experiences and partner insights
• Contribute hands-on by writing clean, performant, and production-ready code for complex distributed systems
• Collaborate with product and data science teams to enable intelligent review insights through machine learning, moderation automation, and relevancy scoring
• Champion operational excellence , ensuring high availability (Tier-1 reliability), observability, and continuous improvement
• Mentor and elevate other engineers by fostering strong engineering principles, code quality, and architectural rigor
• Influence technical roadmap and strategy , ensuring alignment with Expedia Group’s platform evolution and compliance standards

Experience and Qualifications:

• 10+ years of engineering experience building large-scale, distributed systems in high-traffic environments
• Deep expertise in Java/Kotlin, AWS, Docker, Kubernetes, Spring Boot, caching and database platforms, CI/CD , and architectural design patterns
• Proven track record of designing resilient, low-latency systems that handle large-scale user-generated content or similar Tier-1 workloads
• Strong understanding of cloud-native design , microservices architecture, and data pipelines
• Experience with machine learning integration , content moderation, or text analytics is a plus
• Excellent collaborator who can influence across globally distributed teams
• Passionate about platform thinking — balancing reliability, developer productivity, and business agility
• Effective communicator with the ability to translate complex technical concepts for diverse audiences
• A “One Expedia” team player who values transparency, mentorship, and shared success

Accommodation requests

Expedia Group is committed to providing an inclusive and accessible recruiting experience. If you need an accommodation or adjustment due to a disability during the application or recruiting process, please submit a request at https://expedia.service-now.com/askeg?id=job_accommodation .

About Expedia Group

Expedia Group includes three flagship consumer brands - Expedia, Hotels.com, and Vrbo - along with a leading B2B travel business and travel…