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Mobile Engineer III - iOS

  • United States - Washington - Seattle

  • Technology

  • Full-Time Regular

  • 11/19/2025

  • ID # R-99609

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.

Introduction to the team

Our Checkout Team enables one of the most important steps in a traveler's journey. Once they have chosen what they want, it's our job to make their booking smooth and easy, showing them the right information at the right time. We support complex travel products around the world, built for everyone from seasoned business travelers to people leaving on their first trip away from home.

As an Mobile Engineer III-iOS on the Modern Checkout team, you'll work with global stakeholders to help millions of people set out on great adventures, visit home, and stay connected across their hometown and around the world. You'll take on a leadership role in the checkout team, helping set the standards as we build next-generation travel apps for our suite of brands

In this role, you will:

  • Develop and maintain engaging, high-performance iOS applications used by millions of people, using Swift and SwiftUI

  • Set standards for our development practices and mentor junior engineers

  • Work with a modern, server-driven UI framework that delivers rapid updates to users (even if they haven't run an App Store update in a while), and still builds on native platform capabilities

  • Integrate mobile applications with GraphQL backend services, with the opportunity to work on those services

  • Work with top-tier AI tools to automate away the boring parts of the work and focus on creative problem-solving for tough problems

  • Collaborate with cross-functional teams—including product, design, and backend engineers—to deliver cohesive and scalable traveler experiences

  • Participate in code reviews, architectural discussions, and technical design sessions across a robust worldwide community of mobile and platform engineers to ensure best practices and maintainability

  • Contribute to CI/CD improvements, automated testing, and performance optimization for mobile applications

  • Identify and implement technical improvements that enhance reliability, accessibility, and customer satisfaction

  • Stay current with iOS development trends and help guide adoption of new technologies and frameworks

Minimum qualifications:

  • Bachelor’s degree in Computer Science or related technical field; or equivalent related professional experience

  • 5+ years of professional experience developing and shipping iOS applications, including 2+ years experience with Swift

  • Experience with GraphQL APIs, asynchronous programming, and mobile networking

  • Familiarity with automated testing frameworks

  • Proficient in version control (Git) and working within Scrum or Kanban agile environments

Preferred Qualifications:

  • Experience developing and releasing apps at scale, including App Store submission and release processes

  • Experience working in AI-assisted development environments

  • Experience with backend technologies such as Java, Kotlin, or Node.js

  • Familiarity with continuous integration and delivery (CI/CD) systems

  • Strong understanding of performance tuning, accessibility, and analytics for mobile apps

  • Demonstrated ability to partner effectively across disciplines to deliver customer-focused features

  • Excellent problem-solving skills, attention to detail, and a passion for improving the traveler experience

  • Enthusiasm for experimentation, learning, and building great products in a collaborative environment

No relocation assistance offered

Please note that this role is only available in the following location: Seattle in alignment with our flexible work model which requires employees to be in-office at least three days a week. We are unable to offer relocation assistance for this role.

The total cash range for this position in Seattle is $137,500.00 to $192,500.00. Employees in this role have the potential to increase their pay up to $220,000.00, which is the top of the range, based on ongoing, demonstrated, and sustained performance in the role.

Starting pay for this role will vary based on multiple factors, including location, available budget, and an individual’s knowledge, skills, and experience. Pay ranges may be modified in the future.

Expedia Group is proud to offer a wide range of benefits to support employees and their families, including medical/dental/vision, paid time off, and an Employee Assistance Program. To fuel each employee’s passion for travel, we offer a wellness & travel reimbursement, travel discounts, and an International Airlines Travel Agent (IATAN) membership. View our full list of benefits.

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.

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, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. This employer participates in E-Verify. The employer will provide the Social Security Administration (SSA) and, if necessary, the Department of Homeland Security (DHS) with information from each new employee's I-9 to confirm work authorization.
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