Mobile Engineer III

Expedia Group•Austin, TX

11d•$146,000 - $204,500•Hybrid

About The Position

The Mobile Engineer III (iOS) role is part of the VR Differentiators team, a key part of our Multi-Channel Shopping organization. Our team owns and operates across a number of critical Tier-1 applications and features that powers shopping experiences for Vacation Rentals (VR) across multiple brands (Vrbo, Expedia, and others). In this role, you will lead and deliver impactful features and improvements in our native iOS applications, directly influencing the shopping experience for millions of travelers. You will collaborate closely with Android, Web, and backend teams to create cohesive, high-quality experiences on every device our customers use.

Requirements

Bachelor's degree in Computer Science or a related technical field; or Equivalent related professional experience.
5+ years of relevant professional experience in Swift and iOS/iPadOS development, with expertise in software architecture, systems integration, and modern UI frameworks (SwiftUI, UIKit) including modular UI design.
3+ years of experience with mobile architectures (MVVM, VIPER), covering state management, dependency injection, navigation patterns, modularization, and overall testability.
Proven ownership of features or services within an iOS application, including responsibility for integrating with APIs, data models, and related system design (LLD).
Demonstrated proficiency with core iOS development concepts such as UIKit/SwiftUI, concurrency, networking, persistence, and automated testing.
Familiarity with AI-driven systems, tools, or workflows and the ability to safely integrate and operate AI/ML‑enabled capabilities within mobile applications.

Nice To Haves

Skilled in integrating REST/GraphQL APIs and building resilient mobile data layers, including offline handling, caching, error management, and on‑device persistence.
Proficient with Xcode, Git, and mobile CI/CD pipelines (automation, signing, release workflows) using tools such as GitHub Actions and Bitrise.
Strong focus on quality and performance through unit, integration, and UI testing (XCTest, XCUITest), along with profiling and monitoring using Instruments, memory/CPU tools, crash reporting, and analytics.
Experience building and scaling large consumer-facing mobile apps, including A/B testing, feature flagging, and experimentation frameworks.
Familiar with cloud platforms (e.g., AWS) and backend services that support mobile applications, with effective collaboration in agile, cross‑functional teams and strong communication/technical leadership skills.

Responsibilities

Design, build, and ship high-quality iOS features using Swift and modern iOS frameworks (e.g., SwiftUI and/or UIKit), ensuring a polished, performant, and accessible user experience in a large-scale consumer app.
Translate product and experience requirements into clear technical designs, including system design (LLD), API design, and data modeling for mobile client integration.
Implement high-quality, testable Swift code, apply robust debugging practices, and participate in code reviews to maintain engineering standards across the iOS codebase.
Collaborate with cross-functional partners across multiple product areas to deliver features that work reliably with backend services, shared components, and experimentation platforms.
Mentor other engineers through code reviews, design reviews, and pairing sessions. Help elevate the team's engineering practices, grow others' skills, and contribute to a culture of inclusion, learning, and ownership.
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.
Contribute to the evolution of shared mobile patterns, tooling, and best practices so that solutions are reusable and fungible across multiple iOS applications and domains.