Senior Backend Engineer: Scalable, Low-Latency Microservices

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.

Introduction to the Team Expedia Product & Technology builds 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 for the traveler and our partners that drive loyalty and customer satisfaction. The Expedia Group Pricing pillar is tasked with giving the customer a simple, clear, accurate, transparent pricing experience throughout their shopping and booking journeys. We do this by putting the customer first, creating capabilities and experiences that can be shared and presented to the customer that meet the travelers’ expectations in locally relevant ways and adhere to regulatory norms. The pricing platform supports millions of users every year in finding suitable travel products using technologies such as Java, Scala, Kotlin, Spring, MSSQL, DynamoDB, Redis, etc. We encourage experimentation with new technologies while maintaining a healthy balance between short‑term and long‑term goals.

In This Role, You Will

• Own mission‑critical services end‑to‑end—from technical design and API contracts through implementation, deployment, and ongoing operations—for high‑throughput, low‑latency distributed pricing services at global scale.
• Partner with the business to have a clear understanding of how your own technology stack is tied to business outcomes and our bottom line.
• Analyze complex problems, deconstruct them into manageable milestones, and collaboratively deliver sustainable technical solutions.
• Participate actively in architecture reviews, writing thorough and well‑supported technical documentation, and conducting detailed code reviews.
• Creatively test and maintain software applications and related programs and procedures by using a variety of software development tools following the design requirements of the customer.
• Research and recommend frameworks and architectural/code design patterns and identify areas of improvement within the code and suggest solutions.
• Advocate for operational excellence (such as unit testing, establishing SLAs, and programming for resiliency and scalability) and strive for optimum organizational efficiency by applying systems thinking across boundaries and making recommendations about policies/processes.
• Mentor team members, sharing knowledge and expertise to foster a culture of continuous technical growth and collaboration across teams.

Minimum Qualifications

• Bachelor’s Degree in Computer Science or equivalent (5+ years of professional software development experience), or Master’s Degree (4+ years post‑degree experience).
• Hands‑on experience in software development using Java or similar object‑oriented programming languages, or Scala or Kotlin or similar functional languages.
• Proven experience building and operating scalable distributed systems and services within AWS cloud infrastructure or similar technologies.
• You have experience formally mentoring at least 3 individuals and driving technical design end to end for at least 3 projects.
• You have the ability to identify business problems at the project level and team level and design solutions that are easily testable and observable.
• Understanding of relational and NoSQL databases, data structures, API patterns, and service‑oriented architectures.
• You have the ability to establish operational excellence metrics at the team level and identify and advocate for project quality via testing, monitoring, and alerting at the project level.
• Strong practical knowledge and experience developing robust caching solutions, utilizing technologies such as Redis or Couchbase or Memcached, or similar distributed caching tools.
• Experience working successfully on Agile development teams with a minimum of 5 engineers, understanding modern agile methodologies, version control systems, continuous integration, and continuous delivery practices.
• Commitment to technical excellence with excellent communication and interpersonal skills, capable of thriving and collaborating within a globally distributed team environment.

Preferred Qualifications

• Experience with low‑latency and high‑throughput processing (1M+ TPS) microservices.
• Demonstrated proficiency in safely integrating AI/ML‑enabled solutions within backend systems and leveraging AI‑driven tools or workflows to enhance real‑world product outcomes.

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.

Equal Employment Opportunity Statement Expedia is committed to creating an inclusive work environment with a diverse workforce. All qualified applicants will receive consideration for employment without regard to race, religion, gender, sexual orientation, national origin, disability or age.