Software Development Engineer III (Back-End)

About the job

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.

A brief Introduction to the team: Expedia is transforming the way people search for and book travel. We create seamless and unforgettable experiences for traveller's, while driving success for our travel partners. At Expedia Group, the Book to Trip team plays a pivotal role in turning travel bookings into memorable journeys. We focus on delivering a secure, seamless booking experience and providing an always-on trip companion that enhances every traveler's journey, while maximising value for our partners and Expedia. As a core part of this broader team, the Reservations team manages bookings and provides reservation services across all Expedia Group point of sale. The platform is built on a modern microservices architecture and operates in the cloud using Amazon Web Services (AWS), ensuring scalability, resilience, and extensibility. We are currently driving a key initiative to make the reservation platform more flexible for product servicing, while continuing to uphold the highest standards of performance and reliability. In this role, you will:

- Design, build, and evolve backend services in Java for core lodging reservations, with a focus on reliability, scalability, and performance in a high-revenue, business-critical domain.

- Lead migration of functionality from legacy monolithic systems and stored procedures into well-structured, Spring Boot–based microservices, including supporting API design, low-level design, and data modeling.

- Take end-to-end ownership of service components in production, including implementation, deployment, monitoring, and incident resolution using cloud platforms and observability tools such as Datadog and Splunk.

- Analyze and improve interactions with RDBMS-backed data stores, refactoring database logic away from stored procedures into robust service layers while maintaining correctness and system integrity.

- Collaborate with engineers across levels to drive technical decisions, code quality, and best practices in backend engineering, ensuring solutions remain maintainable and extensible across adjacent domains.

- Safely integrate and operate AI/ML‑enabled tools and solutions in the development lifecycle and production workflows to improve engineering velocity, quality, and operational outcomes, including familiarity with AI-driven systems, tools, or workflows and applying AI/ML concepts to real world products.

Minimum Qualifications:

- 6+ years of professional software development experience with a strong focus on backend engineering using Java in production environments.

- Hands-on experience designing and implementing backend services, including system design (with low-level design), API contracts, and data modeling for RDBMS-backed applications.

- Practical exposure to at least one major cloud platform (preferably AWS) and associated services for deploying, running, and monitoring backend services at scale.

- Demonstrated responsibility for owning and supporting backend components in production, including working with monitoring, logging, and alerting systems such as Datadog or Splunk.

- Familiarity with AI-driven systems, tools, or workflows and applying AI/ML concepts to real world products in the context of backend service development, testing, or operations.

Preferred Qualifications:

- Deep expertise in Java-based microservice development using frameworks such as Spring Boot, including experience modernizing legacy or monolithic systems into service-oriented architectures.

- Strong RDBMS experience that goes beyond basic CRUD usage, including working with stored procedures, performance tuning, and systematically migrating database-resident logic into application services.

- Experience building and operating large-scale, business-critical backend systems in a cloud environment (such as AWS), with a track record of using observability tooling to drive operational excellence and reliability.

- Demonstrated use of AI-augmented development or operations (for example, code-generation assistants, intelligent alerting, or anomaly detection) and the ability to safely integrate AI/ML‑enabled solutions into backend services to improve developer productivity, system stability, or customer outcomes.

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 advertising offerings. Across our brands and business, we help travelers explore the world with confidence and ease.

Important notice Employment opportunities and job offers at Expedia Group will always come from Expedia Group's Talent Acquisition and hiring teams. Never share sensitive personal information unless you are confident of the recipient. Expedia Group does not extend job offers via email or messaging tools to individuals with whom we have not made prior contact. Our email domain is @expediagroup.com. The official place to find and apply for roles is https://careers.expediagroup.com/jobs/ .

Equal Opportunity 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.