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.

Why Join Us?

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.

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

If you need assistance with any part of the application or recruiting process due to a disability, or other physical or mental health conditions, please reach out to our Recruiting Accommodations Team through the Accommodation Request.

We are proud to be named as a Best Place to Work on Glassdoor in 2024 and be recognized for award-winning culture by organizations like Forbes, TIME, Disability:IN, and others.

Expedia Group's family of brands includes: Brand Expedia®, Hotels.com®, Expedia® Partner Solutions, Vrbo®, trivago®, Orbitz®, Travelocity®, Hotwire®, Wotif®, ebookers®, CheapTickets®, Expedia Group™ Media Solutions, Expedia Local Expert®, CarRentals.com™, and Expedia Cruises™. © 2024 Expedia, Inc. All rights reserved. Trademarks and logos are the property of their respective owners. CST: 2029030-50

Employment opportunities and job offers at Expedia Group will always come from Expedia Group’s Talent Acquisition and hiring teams. Never provide sensitive, personal information to someone unless you’re confident who the recipient is. Expedia Group does not extend job offers via email or any other messaging tools to individuals with whom we have not made prior contact. Our email domain is @expediagroup.com. The official website to find and apply for job openings at Expedia Group is careers.expediagroup.com/jobs.