Senior iOS Engineer, Design System

Expedia•Austin, TX

54d•Hybrid

About The Position

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 Expedia Technology teams partner with our Product teams 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. Within this organization, the Expedia Group Design System (EGDS) team is responsible for maintaining and evolving our design system. We work closely with designers and engineering teams across the company to help deliver high-quality, accessible, and consistent UI patterns for our travelers and partners. As a Senior iOS Engineer on this team, you will be a key contributor to the foundation of Expedia Group's mobile applications. We are looking for a high-performing individual who wants to make a real impact while also upskilling those around them.

Requirements

Bachelor’s degree in Computer Science or a related technical field; or Equivalent related professional experience.
8+ years of relevant professional experience.
Strong proficiency in Swift and the iOS ecosystem (frameworks, build systems, dependency management, and app store delivery), with solid understanding of networking, data modeling, and API integration patterns.
Demonstrated ability to design and implement maintainable, testable, and observable iOS architectures, including system design (LLD), API design, and collaboration with backend services.
Experience owning the full lifecycle of features or services (design, implementation, testing, release, and operational support) within a broader product or platform area.
Familiarity with AI-driven systems, tools, or workflows and applying AI/ML concepts to real world products, with a focus on safely integrating these capabilities into mobile features.

Nice To Haves

Advanced proficiency with Swift/SwiftUI, iOS UI/UX best practices, and performance optimization.
Direct experience contributing to or using a design system.
Experience using AI productivity tools like Claude or Copilot for development, code quality, or efficiency
Experience building accessible (a11y) and inclusive user interfaces.
Proven track record leading technical design for complex iOS initiatives, including architecture decisions that span multiple services, apps, or domains in a large-scale environment.
Experience integrating or building AI/ML‑enabled capabilities in mobile applications, such as personalization, recommendations, intelligent assistant flows, or content ranking, with a focus on safety and responsible use.
Experience applying AI‑assisted development and testing tools within iOS engineering workflows to improve developer productivity, code quality, and delivery speed.

Responsibilities

Design, build, and maintain native iOS applications and SDKs with a focus on reliability, performance, and customer impact across multiple product areas or services.
Lead end‑to‑end feature delivery, including system design (low‑level design), API design, and data modeling for iOS components and backend integrations that support them.
Establish and champion engineering best practices for iOS development, including code quality, testing, observability, security, and performance tuning across teams.
Collaborate closely with product, design, and platform teams to define technical solutions, drive trade‑off decisions, and ensure consistent mobile architecture and patterns across domains.
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.
Mentor and guide other engineers through code reviews, technical design feedback, and knowledge sharing to increase overall team effectiveness and cross‑domain fungibility.