Software Development Engineer III

Expedia, Inc.; Greater London; Hybrid; GBP 85,000 - 125,000; Full time

Job summary

Expedia Group's Model Lifecycle team is seeking an SDE III to own features end-to-end across services, from design through deployment. You will work in Python, Go, TypeScript and Kubernetes, collaborating with senior engineers to ship reliable software that powers MLS/MLE workflows across Expedia, Vrbo, and Hotels.com.

You’ll apply strong software engineering principles, participate in testing, observability, and code reviews, and help shape scalable systems that handle large-scale model

Qualifications

• Bachelor’s degree in Computer Science, Software Engineering, or related field, or equivalent practical experience.
• Experience delivering production software, with ownership of services or defined technical components.
• Proficiency in low-level system design, API design, data modelling, algorithms, testing, debugging, and code quality.
• Experience designing, operating reliable services with monitoring, incident response, and continuous improvement.

Responsibilities

• Design, develop, test, deploy, and maintain reliable software services and applications delivering measurable outcomes.
• Apply software engineering principles across the development lifecycle including API design and data modelling.
• Own technical solutions within a service, balancing maintainability, scalability, and delivery.
• Collaborate across engineering and partner teams to define requirements and deliver cohesive solutions.
• Use operational data and production feedback to troubleshoot issues and improve reliability.
• Safely integrate and operate AI/ML-enabled solutions in production software.

Skills

Python

Go

TypeScript

Kubernetes

Education

Bachelor's degree in Computer Science, Software Engineering, or related field

Tools

Kubernetes

Job description

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.

About the team

We are the Model Lifecycle team inside Expedia Group's ML Platform. Our services help the MLS and MLE community across EG take use cases from idea to production model in the shortest time possible, with paved paths for training, registration, deployment, serving and monitoring.

As an SDE III you will own features end to end across one or two of these services, working in Python, Go, TypeScript and Kubernetes, with senior and principal engineers close by to pair, review and unblock. Hundreds of models across Expedia, Vrbo and Hotels.com run on what we help build, so the code you ship is felt quickly and good engineering habits (tests, observability, clear PRs) are valued as much as raw output.

We lean heavily on coding agents (Cursor, Claude Code and friends) to accelerate the delivery cycle: scaffolding services, drafting tests, reviewing PRs and keeping documentation in step with the code. You'll have space to learn how to get the best out of them and we'll look to you to apply good judgement on what lands in main.

In this role, you will:

• Design, develop, test, deploy, and maintain reliable software services and applications that deliver measurable outcomes for customers and the business.
• Apply software engineering principles across the development lifecycle, including low-level system design, API design, data modelling, implementation, testing, and code review.
• Own technical solutions within a service or defined technical area, making sound engineering decisions that balance maintainability, scalability, reliability, and delivery.
• Collaborate across engineering and partner teams to define requirements, resolve dependencies, and deliver cohesive solutions across multiple domains when needed.
• Use operational data, monitoring, and production feedback to troubleshoot issues, improve system performance, and strengthen the reliability of owned services.
• Safely integrate and operate AI/ML-enabled solutions that improve outcomes, applying familiarity with AI-driven systems, tools, or workflows and AI/ML concepts to real-world products.

Minimum Qualifications:

• Bachelor’s degree in Computer Science, Software Engineering, or a related technical field, or equivalent practical experience.
• Demonstrated professional experience developing and delivering production software, with ownership of services or defined technical components.
• Proficiency in software development fundamentals, including low-level system design, API design, data modelling, algorithms, testing, debugging, and code quality practices.
• Experience designing, implementing, and operating reliable services, with responsibility for monitoring, incident response, performance, and continuous improvement.
• Ability to collaborate effectively across teams and apply technical judgment to solve complex problems within a defined domain or multi-service environment.

Preferred Qualifications:

• Experience designing and evolving distributed systems or multi-service architectures operating at meaningful scale.
• Demonstrated ability to lead architecture and implementation decisions within a service, technical domain, or cross-service initiative.
• Strong operational excellence, including automation, observability, resilience engineering, and data-driven improvements to reliability and performance.
• Experience applying AI/ML concepts, tools, or workflows to production software, including safely evaluating and integrating AI/ML-enabled capabilities.
• Familiarity with full-stack or cross-domain engineering practices and the ability to contribute effectively across multiple technical areas.

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.