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JobsExpedia Group

Mobile Engineer III, Android

Expedia Group

Mobile Engineer III, Android

Expedia Group

UK - London

·

On-site

·

Full-time

·

1w ago

Benefits & Perks

Healthcare

Parental Leave

Flexible Hours

Learning Budget

Remote Work

Healthcare

Parental Leave

Flexible Hours

Learning

Remote Work

Required Skills

Kotlin

Android development

API design

Data modeling

System design

Concurrency

Networking

Performance tuning

Test automation

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, e Bookers 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 Recommendations 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, build, and maintain Android features for lodging search and shopping across Expedia Group brands, focusing on usability, performance, and reliability.

  • Collaborate with product, design, backend, and data partners to translate requirements into technical solutions, estimates, and delivery plans.

  • Implement clean, testable, and maintainable code using modern Android patterns (e.g., MVVM/MVI, Jetpack libraries, Kotlin coroutines/Flow).

  • Integrate with backend APIs and platform services to power search, filtering, sorting, and personalization in the lodging experience.

  • Instrument features with analytics, logging, and monitoring to support A/B testing, product insights, and rapid iteration.

  • Participate in code reviews, design discussions, and technical decision-making to evolve our mobile architecture and shared frameworks.

  • Contribute to automated testing (unit, integration, and UI tests) and support a robust CI/CD pipeline for frequent, safe releases.

  • Help triage and resolve production issues, performing root-cause analysis and implementing long-term fixes and improvements.

  • Work closely with other mobile engineers across Expedia Group to share best practices, align on standards, and improve developer productivity.

  • Champion a customer-centric and experimentation-driven mindset, using data to validate hypotheses and inform future iterations.

Minimum Qualifications:

  • Bachelor’s degree in Computer Science, Engineering, or a related technical field, or equivalent practical experience in Android software development.

  • 5+ years of professional experience developing and shipping Android applications using Kotlin, including ownership of features or services from design through production support.

  • Proven experience designing and consuming APIs, working with data models and persistence layers on Android, and applying sound low-level system design practices.

  • Demonstrated ability to take responsibility for components or services within an application domain, including code quality, reliability, observability, and operational support.

  • Solid understanding of core mobile engineering concepts such as concurrency, networking, performance tuning, and test automation for Android applications.

Preferred Qualifications:

  • Experience building and evolving complex Android applications at scale, including modular architectures, clean architecture patterns, and robust system and API designs.

  • Track record of leading technical design for significant Android features or components, making data-informed decisions, and guiding trade-offs around performance, reliability, and usability.

  • Hands-on experience integrating AI- or ML-powered capabilities into mobile apps (for example, personalization, recommendations, or intelligent automation) and safely operating these solutions in production.

  • Familiarity with AI-driven systems, tools, or workflows in the mobile development lifecycle (such as AI-assisted testing, diagnostics, or developer productivity tools) and applying these to improve engineering efficiency.

  • Strong focus on operational excellence, including monitoring, alerting, incident response, and continuous improvement of Android services and features in collaboration with backend and platform teams.

  • Knowledge of accessibility and inclusive design basics on Android (e.g., Talk Back, touch targets, contrast) and a desire to improve the accessibility of native experiences.

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®, Cheap Tickets®, Expedia Group™ Media Solutions, Expedia Local Expert®, Car Rentals.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.

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About Expedia Group

Expedia Group

An online travel agency that provides hotel reservations, airline tickets, and vacation packages.

10,001+

Employees

Seattle

Headquarters

$6.8B

Valuation

Reviews

3.8

9 reviews

Work Life Balance

4.2

Compensation

3.5

Culture

4.1

Career

4.0

Management

3.4

75%

Recommend to a Friend

Pros

Supportive work environment and colleagues

Good work-life balance

Great benefits and perks

Cons

Poor management and leadership issues

Compensation below market rate

Organizational chaos from acquisitions

Interview Experience

7 interviews

Difficulty

3.0

/ 5

Duration

14-28 weeks

Interview Process

1

Final Round

2

Coding Assessment

3

Tech Round

4

HackerRank Round

5

Digital Interview

6

Final Interview

Common Questions

Technical coding problems

System design

Behavioral questions

Algorithm implementation