Mobile Engineer III, Android

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.

Mobile Engineer III, Android

Introduction to the Team
Expedia Technology teams partner our Product teams to create innovative products, services, and tools that deliver high-quality experiences for travelers, partners, and employees. Our unified technology platform, powered by data and machine learning, enables secure, personalized, and differentiated experiences that drive loyalty and traveler satisfaction.

The Expedia Group Cars team owns the end-to-end car rental shopping and booking. We build scalable, high-performance systems that enable travelers to plan, search, compare, and book rental cars seamlessly across web and app platforms.

Leveraging modern technologies such as React, GraphQL, Java, Kotlin, Spring, DynamoDB, Elasticsearch, and Redis, our systems operate at global scale—serving millions of travelers while ensuring reliability, performance, and continuous innovation in the Cars booking journey.

We are looking for mobile engineers who are excited to contribute to the growth and evolution of the Cars business by delivering impactful features and services that delight customers and partners. You will work in a collaborative, fast-paced environment where ownership, technical excellence, and innovation are highly valued.

Team members in Cars are accountable for delivery and outcomes in a high-impact environment. We embody the “One Team” philosophy and apply Agile, Lean, Continuous Delivery, and data-driven principles across engineering and operations.

In this role, you will:

• Design, build, and maintain Android applications and features that are robust, performant, and aligned with Expedia Group’s mobile product and platform standards.

• Implement clean architectures, API integrations, and data models that support modular, testable, and maintainable Android solutions across multiple product areas.

• Collaborate with product, design, and backend teams to translate requirements into technical solutions, including detailed system design, low-level design, and integration patterns.

• Ensure high-quality code through automated testing, code reviews, monitoring, and performance optimization, while maintaining strong security, privacy, and reliability practices.

• Contribute to shared Android components, patterns, and tooling to promote reuse and technical consistency across different mobile journeys and 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.

Minimum Qualifications:

• Bachelor’s degree in Computer Science or a related technical field; or Equivalent related professional experience.

• 5+ years of relevant professional experience.

• Professional experience developing Android applications using the core mobile technology stack defined for this role, with proven ownership of features or services within a product area.

• Experience designing and implementing mobile APIs, data models, and low-level system components, including handling networking, data persistence, and offline scenarios.

• Demonstrated ability to deliver high-quality, testable, and maintainable code in a collaborative environment, including participation in code reviews and use of modern development practices and tooling, plus familiarity with monitoring, troubleshooting, and improving mobile app performance and reliability in production environments.

Preferred Qualifications:

• Experience designing and evolving Android application architectures and shared components used across multiple features or product domains, including API design and data modeling for scale.

• Track record of driving improvements in mobile engineering practices such as test automation, observability, build and release pipelines, or performance optimization for complex apps.

• Hands-on experience integrating or consuming AI/ML‑driven capabilities in mobile experiences, and safely operating AI/ML‑enabled features to enhance customer outcomes.

• Experience using data and experimentation (such as telemetry, analytics, or A/B testing) to guide mobile feature design, prioritize technical work, and validate outcomes.

• Experience leveraging AI-driven developer tooling (for example, intelligent code assistance, automated test generation, or anomaly detection) to increase engineering productivity and quality on Android projects.

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.