Mobile Engineer II, iOS

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.

Are you excited to build new technologies that will be instrumental in bringing Expedia Group's evolving brand to life by delivering Native App experiences for millions of users? Come build the future of travel with us! Software Engineers at Expedia Group develop solutions and products that touch millions of people every day around the globe. Our engineers seek some of the most sophisticated problems in the world of travel across various brands - Expedia, Orbitz, Car Rentals, Vrbo, Hotels.com, Travelocity, eBookers and others. We are looking for strong technical talent as well as a keen desire to deeply understand our products and services to push our technology forward with respect to functionality, performance, reliability, and scalability.

Our team in Search and Recs Experience is looking for curious, empathetic, and creative problem solvers with a growth mindset. We are a team of travel-loving makers, building a cutting-edge platform using latest technologies. You will be responsible for building a best-in-class shopping experience for our travellers and partners.

As a member of the team, you'll estimate engineering efforts, design your changes, implement and test your changes, push to live, and triage production issues. You need to be collaborative, and curious as we build new experiences and improve existing frameworks powering the world's largest travel mobile apps at a scale only a few companies can match.

In this role, you will:

• Design, develop, and maintain native iOS applications, focusing on clean architecture, modular code, and robust UIKit/SwiftUI-based user interfaces that deliver high-quality traveler experiences.
• Own and evolve features end-to-end across multiple domains, including system design (low-level design), API consumption design, and data modeling for mobile clients in collaboration with backend and product teams.
• Implement, optimize, and debug iOS application components (networking, persistence, concurrency, and UI) to ensure reliability, performance, accessibility, and responsiveness at scale.
• Collaborate with cross-functional partners to translate product requirements into technical solutions, contributing to technical design reviews, code reviews, and shared mobile frameworks reusable across different brands and use cases.
• Safely integrate and operate AI/ML‑enabled solutions that improve outcomes, including familiarity with AI-driven systems, tools, or workflows and applying AI/ML concepts to real world products within mobile experiences.
• Improve engineering operations by contributing to testing strategies, continuous integration practices, instrumentation, monitoring, and incident resolution for iOS apps across multiple product areas.
  

Minimum Qualifications:

• Bachelor’s degree in Computer Science or a related technical field; or equivalent related professional experience.
• Experience developing and shipping production iOS applications using Swift and Swift UI, including ownership of features or services within at least one significant app.
• Hands-on experience designing and implementing mobile client integrations with RESTful or GraphQL APIs, including basic data modeling, error handling, and offline-resilient behaviors.
• Demonstrated ability to participate in system design for mobile features, including low-level design, API contracts from a client perspective, and data structures aligned with product and UX requirements.
• Proficiency with AI-driven systems, tools, or workflows and applying AI/ML concepts to real world products, with the ability to safely integrate and operate AI/ML‑enabled features in mobile applications under guidance.

Preferred Qualifications:

• Experience building and maintaining complex iOS apps at scale, including modular architectures, shared frameworks, and patterns such as MVVM, VIPER, or similar to support multiple domains and brands.
• Proven ability to design robust low-level implementations for mobile features, including detailed API design feedback, client-side data modeling, and performance-aware use of persistence, caching, and concurrency.
• Track record of improving operational excellence for mobile applications through advanced testing (unit, snapshot, UI), observability (logging, metrics, tracing), and proactive performance monitoring in production.
• Safely integrates and operates AI/ML enabled solutions that improve outcomes, including experimentation with personalization, recommendations, or intelligent assistance in mobile experiences, and effective use of AI-driven tools in the iOS development workflow.‑enabled solutions that improve outcomes, including experimentation with personalization, recommendations, or intelligent
• Familiarity with system design concepts that span multiple services and domains, contributing to end-to-end technical decisions for mobile features that interact with backend services, experimentation platforms, or data pipelines.

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, religion, gender, sexual orientation, national origin, disability or age.