Software Development Engineer II (Full Stack BE Heavy)

Modern Checkout is pioneering the future of frictionless travel commerce by developing a brand and product line agnostic checkout platform for Expedia Brands including Hotels.com and Vrbo. The Checkout Engineering organization enables one of the most critical steps in a traveler’s journey. Once a user selects their ideal trip, it is Checkout team job to make their booking smooth, highly secure, and effortless. By decoupling the transaction layer from individual brand architectures and specific travel products (flights, hotels, car rentals), Modern Checkout delivers a unified, highly adaptable payment experience. This strategic evolution simplifies the path to purchase, accelerates global scaling, and empowers Expedia to deploy seamless, hyper-localized checkout flows across its entire portfolio with unprecedented agility. In this role, you will:

Design, build, and operate backend‑heavy full‑stack services for Expedia Group’s Modern Checkout platform, creating brand‑agnostic, product‑agnostic capabilities that serve hotels, flights, activities, and packages at global scale.

Own problems end to end across the stack, from clarifying requirements and producing low‑level designs, APIs, and data models through implementation, testing, deployment, and ongoing operational support.

Develop and evolve microservices and platform components in a cloud‑native environment using languages such as Kotlin, Java, or C#/.NET, integrating with AWS‑hosted data stores, caches, and streaming systems.

Implement resilient, observable, and high‑performance tier‑zero checkout services, contributing to CI/CD pipelines, automated testing, and operational readiness to meet strict availability and latency goals.

Collaborate with engineers, product managers, and partner teams to incrementally decompose legacy monoliths into a unified architecture, ensuring services are reusable and fungible across multiple brands and domains.

Use AI‑assisted development tools and AI‑driven workflows to accelerate coding, testing, and troubleshooting, and safely integrate and operate AI/ML‑enabled solutions that improve engineering efficiency and checkout outcomes.

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 .

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.

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/ .