Software Development Engineer II

Expedia Group; Greater London; On-site; GBP 70,000 - 110,000; Full time

Job summary

Expedia Group’s Model Lifecycle team on the ML Platform is seeking an SDE II to own features end to end across one or two services, coding in Python, Go, TypeScript and Kubernetes. You will collaborate with senior engineers to ensure reliable software with strong tests and observability.

You will translate product requirements into maintainable designs, develop APIs and data models, and drive scalable, secure services while solving complex issues and improving performance.

Qualifications

• Bachelor’s degree in computer science, engineering, or a related technical field, or equivalent practical experience.
• Professional software engineering experience appropriate to an SDE II role.
• Experience owning and delivering features within a service or defined technical area.
• Proficiency in software development fundamentals, including coding, testing, debugging, version control, API design, data modeling, and low-level system design.
• Experience working with cross-functional partners to deliver, operate, and improve production software.

Responsibilities

• Design, build, test, and maintain reliable software components that deliver high-quality customer and business outcomes.
• Translate product and technical requirements into maintainable solutions, applying sound engineering practices across the software development lifecycle.
• Develop clear low-level designs, APIs, data models, and integrations that support scalable, secure, and dependable services.
• Investigate and resolve complex technical issues, improve system performance and reliability, and contribute to operational excellence.
• Collaborate effectively across engineering, product, and technical domains while applying transferable skills to multiple problem spaces.
• Safely integrate and operate AI/ML-enabled solutions that improve outcomes, while building familiarity with AI-driven systems, tools, workflows, and the application of AI/ML concepts to real-world products.

Skills

Python

Go

TypeScript

Kubernetes

Education

Bachelor's degree in computer science, engineering, or related technical field

Tools

Cursor

Claude Code

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 teamWe 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 II 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, build, test, and maintain reliable software components that deliver high-quality customer and business outcomes.Translate product and technical requirements into maintainable solutions, applying sound engineering practices across the software development lifecycle.Develop clear low-level designs, APIs, data models, and integrations that support scalable, secure, and dependable services.Investigate and resolve complex technical issues, improve system performance and reliability, and contribute to operational excellence.Collaborate effectively across engineering, product, and technical domains while applying transferable skills to multiple problem spaces.Safely integrate and operate AI/ML-enabled solutions that improve outcomes, while building familiarity with AI-driven systems, tools, workflows, and the application of AI/ML concepts to real-world products.Minimum Qualifications:Bachelor’s degree in computer science, engineering, or a related technical field, or equivalent practical experience.Demonstrated professional software engineering experience appropriate to an SDE II role.Experience owning and delivering features or components within a service or defined technical area.Proficiency in software development fundamentals, including coding, testing, debugging, version control, API design, data modeling, and low-level system design.Experience working with cross-functional partners to deliver, operate, and improve production software.Preferred Qualifications:Experience designing and operating reliable services at scale, with a focus on performance, availability, security, and maintainability.Demonstrated ability to contribute to architectural decisions, simplify complex technical problems, and improve engineering practices within a defined service or domain.Experience using monitoring, logging, metrics, and data-driven analysis to diagnose issues and guide technical improvements.Practical exposure to AI/ML-enabled products, developer tools, or workflows, including the ability to evaluate and safely apply these solutions in production-oriented software engineering.Experience delivering technical solutions across multiple domains or technology areas, with the adaptability to apply sound engineering judgment in unfamiliar problem spaces.Accommodation requestsExpedia 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 GroupExpedia 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 noticeEmployment 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 OpportunityExpedia 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.