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# Senior Software Development Engineer

- **Company:** Expedia, Inc.
- **Location:** London, UK
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Clean Code Principles, Artificial Intelligence, Fault Tolerance, Machine Learning, Software Engineering, Systems Architecture, TypeScript, ReactJS, Kotlin, Information Technology, Data Analytics, Front End Software Development, Api Design, Code Restructuring, Microservices
- **Published:** September 21, 2026
- **Apply:** https://www.apply4u.co.uk/jobs/senior-software-development-engineer/47734641

## About the Role

across teams. Safely integrate and operate AI/ML-enabled solutions to improve business and customer outcomes, ensuring secure and ethical adoption. Demonstrate adaptability by contributing to projects spanning different technical stacks, domains, and platforms. Minimum Qualifications: Bachelor's degree in Computer Science or a related technical field; or equivalent related professional experience. 8+ years of relevant professional experience. Strong engineering skills and curiosity to push what's possible with modern tech, regardless of stack. Ability to break down complex problems and ship simple, innovative solutions with a cross-functional team. Proven experience building scalable, user-centric products that power great user experiences. Clear, concise communication skills, translating technical details for both technical and non-technical audiences. Growth-minded and data-driven, always learning, experimenting, and raising the bar for how we build products and experiences. Familiarity
with AI-driven systems, tools, or workflows and applying AI/ML concepts to real world products. Preferred Qualifications: Hands-on experience with multiple system architectures (e.g. microservices, event-driven, composable) and the ability to evaluate and communicate the trade-offs between them for scale, reliability, and speed of delivery. Hands on experience with Kotlin for server side, or/and React and Typescript for the frontend. Proven track record of refactoring and modernising legacy codebases and architectures, improving performance and maintainability while minimising risk and customer impact. Track record of integrating and optimizing AI/ML-enabled features or workflows within production systems. 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 About Expedia Group Expedia

## Description

TPMs, Engineering Managers, and Software Engineers based in Gurgaon, Bangalore, London, and Madrid. We prioritise building high-quality software with a focus on availability, performance, scalability, and system resiliency. Our London team is looking for curious, empathetic, and creative problem solvers with a growth mindset. We value our team culture and work together from the office three times a week. In this role, you will: Design, build, and maintain robust full stack applications and scalable services across multiple domains, applying deep technical expertise and architectural skills. Lead the end-to-end development process, including system design, API design, and data modelling, ensuring quality and maintainability of solutions. Collaborate across engineering, product, and business teams to define requirements, deliver impactful features, and drive technology strategy. Mentor and guide engineers, fostering best practices in coding, testing, and operational excellence within and


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