Software Development Engineer III in London

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 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. Price is a key factor influencing traveler’s path to driving a choice leading to a purchase. In a world of infinite paths to purchase, travelers make multiple searches and find the ‘best trip’ and ‘best deal’. The Offers Domain team is tasked with giving the customer a simple, clear, accurate, transparent pricing throughout their shopping and booking journeys. We do this by putting the customer first, creating capabilities that can be shared and presented to the customer that meet the travelers’ expectations in locally relevant ways and adhere to regulatory norms. This is a great opportunity for you to play a pivotal role in shaping our technical domain with the goal of powering all Expedia Group’s brands and product lines.

In this role, you will:

• Design and implement scalable, robust, and maintainable systems and services across multiple domains, with a focus on reliability and performance.
• Develop complex application logic, APIs, and data models aligned to business goals and best engineering practices.
• Collaborate with cross-functional teams to deliver high-quality, full-stack solutions that integrate seamlessly across platforms.
• Lead technical efforts in system architecture, code reviews, and establishing engineering standards.
• Safely integrate and operate AI/ML-enabled solutions that improve outcomes, ensuring responsible use of advanced technologies.
• Proactively identify, diagnose, and resolve production issues, continuously improving system health and operational excellence.

Minimum Qualifications:

• Bachelor’s degree in Computer Science or a related technical field; or equivalent related professional experience.
• 5+ years of relevant professional experience.
• Strong software engineering fundamentals—data structures, and algorithms in Java or Kotlin, with familiarity across the JVM stack, system design, and distributed systems—and can understand highly complex systems, design moderately complex services, and guide integrations across teams within the business unit.
• Building and operating high‑performance, highly available backend services in public/hybrid cloud environments (Kotlin strongly preferred).
• Demonstrated experience leading engineering efforts for services operating at scale in a cloud environment (preferably AWS), including deploying and operating services using platform tooling and/or infrastructure as code.
• Hands-on experience designing, building, and operating large-scale, distributed systems and services.
• Strong proficiency in system design, API design, and data modeling.
• Experience using modern AI assisted development tools (for example, IDE assistants, chat based coding agents, or AI augmented code review/testing tools) as part of your daily workflow, beyond simple code autocompletion, and are comfortable working in an AI integrated environment.

Preferred Qualifications:

• Experience with container technologies (such as Kubernetes) and CI/CD tools or processes.
• Expertise in architecting end-to-end solutions integrating multiple systems or domains.
• Strong focus on operational excellence, including monitoring, automation, and incident response.
• Data-driven approach to problem solving and technical decision making, including leveraging AI/ML insights where appropriate.
• Deep knowledge of safely integrating AI/ML features into production systems and optimizing their impact at scale.

On-Call Requirement:

This position requires the employee to be on-call outside of regular working hours. On-call duties encompass:

• Responding to emergencies or incidents as they arise
• Providing prompt support and solutions
• Participating in on-call rotations, including nights, weekends, and bank holidays
• Remaining reachable by phone or other communication methods at all times during on-call periods

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™.