Mobile Engineer III, iOS

11105 Expedia, Inc.; Washington; On-site; USD 146,000 - 234,000; Full time

Benefits offered by this job

Medical insurance

Dental and vision coverage

Paid time off

Employee Assistance Program

Wellness and travel reimbursement

Travel discounts

Job summary

Expedia Group in the United States is seeking a Mobile Engineer III (iOS) to design, build, and maintain secure, high‑performing native iOS applications for Expedia Checkout. You will translate product requirements into technical designs and collaborate with backend, design, and QA teams to deliver end‑to‑end customer journeys.

You will own the code from design through production, with emphasis on architecture, observability, testing, and incident resolution, while safely integrating AI/ML

Qualifications

• Bachelor’s degree or equivalent practical experience.
• Professional experience shipping native iOS apps from design to production.
• Strong iOS architecture, low‑level design, API integration, and data modeling.
• Proficiency with iOS tools, frameworks, testing, observability and ops practices.
• Experience collaborating in cross‑functional, multi‑domain teams.
• Preferred: designing and scaling complex iOS architectures (modularization, offline).
• Familiarity with AI/ML‑enabled capabilities in mobile apps.

Responsibilities

• Design, build, and maintain native iOS apps that are secure, performant, and resilient.
• Translate requirements into technical designs (LLD, API data models).
• Collaborate with backend, product, design, and QA to deliver end-to-end journeys.
• Write clean, testable code; contribute to automated testing and monitoring.
• Diagnose production issues to improve reliability and performance.
• Safely integrate AI/ML solutions while upholding privacy and security.

Skills

iOS development

Swift

Objective-C

API integration

Testing

Observability

Performance

Cross-functional collaboration

AI/ML familiarity

Education

Bachelor’s degree in Computer Science or Software Engineering (or 5+ years equivalent)

Tools

Xcode

Swift tooling

Job description

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.

Intro to the Team

Our Technology Team partners with teams across Expedia Group 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. As a Mobile Engineer III, iOS, working on Expedia’s critical production checkout applications, your mission will be to ensure Expedia Checkout is always fast, available, scalable, and engineered to withstand unparalleled demand. You will be in the thick of solving the [often unexpected] problems of systems at scale in a way most engineers never experience. You will have strong analytical and troubleshooting skills, proficiency in coding and systems design, solid interpersonal skills, and a desire to tackle the complex problems of scale. You are a collaborative and creative individual, and you thrive in a dynamic and agile environment. You adapt to new technologies and enjoy working on complex problems. Every day, we at Expedia get to innovate on web applications that millions of travelers use to plan, book, and experience trips they will remember forever.

In This Role, You Will: Design, build, and maintain native iOS applications that are secure, performant, and resilient using modern iOS frameworks and best practices Translate product and experience requirements into clear technical designs (LLD, API design, data models) Collaborate cross‑functionally with backend, product, design, and quality teams to deliver end‑to‑end customer journeys Write clean, testable, and observable code; contribute to automated testing, monitoring, and code reviews Diagnose and resolve complex production issues, improving application reliability and performance Safely integrate and operate AI/ML‑enabled solutions while maintaining privacy and security standards

Minimum Qualifications: Bachelor’s degree in Computer Science, Software Engineering, or 5 years of equivalent practical experience Professional experience shipping native iOS applications with ownership from design through production Strong iOS architecture, low‑level design, API integration, and data modeling experience Proficiency with iOS tools, frameworks, testing, observability, and operational best practices Experience collaborating in cross‑functional, multi‑domain teams

Preferred Qualifications: Experience designing and scaling complex iOS architectures (modularization, performance, offline support) Proven delivery of high‑impact iOS features across multiple domains Strong focus on operational excellence (instrumentation, monitoring, alerting, incident resolution) Experience integrating AI/ML‑enabled capabilities into mobile apps securely and responsibly Familiarity with AI‑driven development tools and applying AI/ML concepts to improve product quality and developer efficiency

The total cash range for this position in Seattle is $146,000.00 to $204,500.00. Employees in this role have the potential to increase their pay up to $233,500.00, 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.

Benefits and perks

• Expedia Group offers benefits and perks designed to support employees and their families, including medical, dental, and vision coverage, paid time off, an Employee Assistance Program, wellness and travel reimbursement, travel discounts, and International Airlines Travel Agent Network (IATAN) membership.

Learn more about life at Expedia Group at https://careers.expediagroup.com/life.

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, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, veteran status, or any other characteristic protected by law. 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.

Expedia Group (NASDAQ: EXPE) powers travel for everyone, everywhere through our global platform. Driven by the core belief that travel is a force for good, we help people experience the world in new ways and build lasting connections. We provide industry-leading technology solutions to fuel partner growth and success, while facilitating memorable experiences for travelers. 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™. For more information, visit www.expediagroup.com.

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 to 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 lifeatexpediagroup.com/jobs.