Senior Software Development Engineer - Data Platform

About the Role

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 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.

Introduction to Team

Expedia Technology teams partner with our Product teams to create 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 that drive loyalty and traveler satisfaction.

The Senior Software Engineer – Data Quality Platform role sits within the Data Platform organization in the Expedia Product & Technology division. The team builds foundational capabilities that ensure Expedia Group’s data is trustworthy, timely, and fit for purpose. Our services power analytics, machine learning, and product experiences across brands and lines of business, enabling teams to make high‑confidence decisions on top of reliable data.

In this role, you will design and build scalable platforms for data validation, monitoring, and observability across batch and streaming environments.

• Design, build, and evolve highly reliable platform services and frameworks that enable product teams to deliver secure, scalable, and observable solutions across Expedia Group.
• Lead end‑to‑end implementation of complex backend systems, including system design (LLD), API design, and data modeling, with a focus on performance, resilience, and maintainability.
• Drive technical direction for platform capabilities, setting engineering standards, reviewing designs and code, and mentoring other engineers in modern service development best practices.
• Own the full service lifecycle for critical platform components, including deployment, monitoring, incident response, and continuous improvement of reliability and operational excellence.
• Collaborate with cross‑functional teams to define and integrate platform capabilities that are reusable across multiple domains, ensuring consistent patterns, tooling, and developer experience.
• Safely integrate and operate AI/ML‑enabled solutions and AI‑driven tools that improve platform reliability, developer productivity, and automation, including familiarity with AI‑driven systems, tools, or workflows and applying AI/ML concepts to real world products.

• Bachelor’s degree in Computer Science or a related technical field; or equivalent related professional experience.
• 8+ years of relevant professional experience.
• Proven experience owning one or more services end‑to‑end, including design, implementation, deployment, monitoring, and operational support.
• Strong proficiency in system design (LLD), API design, and data modeling, with a track record of building secure, scalable, and observable services.
• Hands‑on experience with modern service development practices such as CI/CD, monitoring/alerting, and operational tooling in a cloud‑based environment, including operating backend or platform services in production.

• Experience designing and evolving platform capabilities or shared services used by multiple product or data teams at scale.
• Hands‑on experience using agentic coding workflows with tools like Microsoft Copilot and OpenAI Codex to autonomously generate, refine, and optimize code solutions across complex development tasks.
• Strong proficiency in Java development with hands‑on experience building scalable, high‑performance applications using Spring Boot, including RESTful API design,…