User Experience Engineer III at Expedia

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.

A brief Introduction to the team:
Expedia Global Payments (EGP) is hiring engineers to build and evolve the core platform of our globally distributed payment system. We process over $100B annually in more than 35 currencies. Our priorities are high availability, lower payment-processing costs, and better experiences for travelers and partners (hotels, airlines, and more).

You will help build the payment experience within our Unified Payment Module, which supports complex payment scenarios. Our goal is to give travelers the simplest, most reliable way to pay and to make these capabilities easy for partners to adopt—seamlessly integrating into any checkout with an adaptive, dynamic feature set.

Today, the unified Payment Module powers our Modern Checkout, EGP Advertising, EGP Private label solution. It:
- Manages multiple forms of payment—Credit cards, Affirm, Apple Pay, Naver Pay, PayPal, Google Pay, loaclised payments, gift cards, and loyalty programs.
- Determines which payment options are eligible for each checkout context.

We are expanding the payment experience to support additional lines of business—Air, Cars, Cruises, Activities—and more points of sale worldwide within unified payment module.

In this role, you will:

• Design and build rich, performant, and accessible web experiences using React, JavaScript/TypeScript, Node.js, and modern web UI technologies.
• Implement and evolve the experience orchestration layer using GraphQL and Kotlin in a backend-for-frontend (BFF) architecture to deliver cohesive, resilient UI experiences.
• Collaborate with product, design, and backend engineering teams to translate requirements into robust UI flows, APIs, data models, and low-level designs that are scalable and maintainable.
• Optimize front-end and BFF services for reliability, performance, observability, and security, including effective error handling and graceful degradation across multiple domains.
• Safely integrate and operate AI/ML‑enabled solutions that improve user experience, personalisation, or developer workflows, and ensure familiarity with AI-driven systems, tools, or workflows and applying AI/ML concepts to real world products.
• Contribute to code quality through code reviews, testing strategies, and continuous improvement of engineering practices across both the UI and experience layers to support reusable patterns and components.

Minimum Qualifications:

• Bachelor’s degree in Computer Science or a related technical field; or Equivalent related professional experience.
• 5+ years of relevant professional experience.
• Professional experience building user interfaces with React and JavaScript/TypeScript, including hands-on development with Node.js and modern web UI technologies.
• Experience owning and delivering features or services that span both front-end and an experience/BFF layer using GraphQL and Kotlin, with ownership of one or more services or feature areas.
• Demonstrated ability to design and implement low-level designs, APIs, and data models that connect UI clients with backend services in a scalable way.
• Familiarity with AI-driven systems, tools, or workflows and applying AI/ML concepts to real world products, including safely integrating AI/ML‑enabled capabilities into existing experiences or services.

Preferred Qualifications:

• Deep experience building complex, high-traffic web applications using React, JavaScript/TypeScript, and Node.js, with a strong focus on performance, accessibility, and usability.
• Strong expertise implementing and evolving GraphQL and Kotlin-based BFF or experience layers, including schema design, resolver patterns, data modeling, and integration with multiple backend services.
• Exposure to backend engineering with Java and microservices, including integrating UI and BFF layers with distributed systems, monitoring tools, and operational best practices.
• Experience designing and optimizing end-to-end UI and service architectures, including low-level design for APIs and data contracts that support reuse across multiple products or domains.
• Experience safely integrating AI/ML‑enabled solutions into user experiences or developer tooling (such as personalisation, recommendations, or intelligent assistance), and applying AI/ML concepts to improve front-end and BFF workflows at scale, including familiarity with AI-driven systems, tools, or workflows.

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.