Principal iOS Engineer - Search and Recommendations Experience

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. Introduction to 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 This Principal iOS Engineer sits within the Search and Recommendations Experience team which owns the end-to-end search and recommendations experience, including search entry, results, maps, filters, and recommendations across multiple lines of business such as lodging, cars, activities, flights and packages. In this role, you will provide technical leadership for native search and discovery experiences, setting architectural direction, influencing engineering standards, and shaping the evolution of AI-enabled capabilities across the mobile platform. In this role, you will: • Lead the design, development, and maintenance of advanced iOS applications, ensuring high performance, quality, and responsiveness across Expedia Group’s product suite. • Architect and implement robust, scalable system and API designs, including effective data modeling to support complex business requirements. • Drive cross-functional collaboration to define, develop, and ship impactful features, ensuring alignment with organizational goals and technical strategy. • Champion best practices in software engineering, testability, and maintainability through code reviews and mentoring. • Safely integrate and operate AI/ML‑enabled solutions to enhance user experience and improve operational outcomes. • Troubleshoot, optimize, and resolve complex technical issues, contributing to the continuous improvement of services and domain capabilities. Minimum Qualifications:   • Bachelor’s degree in Computer Science or a related technical field; or equivalent related professional experience. • 12+ years of relevant professional experience. • Demonstrated experience owning the full lifecycle of iOS services or features within a multi-service or domain environment. • Proficiency in Swift, Objective-C, and iOS frameworks, with a strong understanding of system and API design principles. • Familiarity with AI-driven systems, tools, or workflows and applying AI/ML concepts to real world products. Preferred Qualifications:   • Experience architecting scalable, complex, modular, and maintainable iOS mobile architectures, leveraging common design patterns such as MVVM or VIPER • Advanced proficiency in SwiftUI - Skilled in multi-threading, concurrency, and performance optimization • Prior experience in the search domain or travel industry, such as building or scaling search, discovery in consumer mobile apps. • Experience establishing technical strategy, best practices, and operational excellence for organizational mobile platforms. • Advanced knowledge of integrating AI/ML capabilities into mobile products to enhance functionality and user engagement. • Demonstrated experience collaborating within large, globally dispersed development teams • Expertise in cross-platform or multi-domain engineering, contributing to broad technical initiatives. 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, religion, gender, sexual orientation, national origin, disability or age.