Full Stack Software Development Engineer III

Traveltechessentialist; City Of London; Hybrid; GBP 70,000 - 90,000; Full time

Job summary

A leading travel technology firm in London is seeking a Full Stack Software Development Engineer III. This role involves collaborating with team members to enhance applications while ensuring high-quality code. Candidates should possess a Bachelor's degree and over 5 years of software development experience, with proficiency in JavaScript, TypeScript, and ReactJS. The position requires in-office presence at least three days a week and offers a comprehensive benefits package.

Benefits

Full benefits package

Exciting travel perks

Generous time-off

Parental leave

Career development resources

Qualifications

• 5+ years of software development experience, building scalable, robust solutions.
• Proficient in modern CSS, JavaScript, TypeScript, and frameworks such as ReactJS.
• Experienced in API development and proficiency with object-oriented languages.

Responsibilities

• Collaborate with cross-disciplinary teams to design and enhance applications.
• Take proactive steps to address system bottlenecks and performance issues.
• Design and implement monitoring systems to ensure application uptime.

Skills

Full Stack Development

JavaScript

TypeScript

ReactJS

API development

Kotlin

CSS

Education

Bachelor’s or Master’s degree in Computer Science or related field

Tools

GraphQL

Git

Job description

Full Stack Software Development Engineer III

United Kingdom - London

Technology

Full-Time Regular

Posted: 10/08/2025

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 and differences are celebrated. 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. We’re building a more open world. Join us.

Introduction to the Team

We are seeking a Full Stack Software Development Engineer III to join our Recommendations UI team, an essential part of the Search and Recommendations organization at Expedia Group. Our team builds experiences across all Expedia Group brands—including Expedia, Hotels.com, Vrbo, and our white‑label templates—using Kotlin and GraphQL for backend services and TypeScript for frontend development.

In This Role, You Will:

• Full Stack Development – Collaborate closely with cross‑disciplinary teams to design, implement, and enhance large‑scale applications. Focus on improving the architecture and technical foundation of our systems to better serve millions of users.
• Quality & Performance Champion – Lead efforts in establishing and enforcing engineering best practices across testing, CI/CD, and observability. Take proactive steps to address system bottlenecks, technical debt, and performance issues.
• Observability & Reliability – Design and implement tracing, monitoring, and alerting systems to ensure application uptime. Use data‑driven insights to identify performance bottlenecks and improve system reliability.
• Cross‑functional Collaboration – Work with teams across different time zones to ensure smooth integration with our dependencies and alignment on product goals.
• Testing & Code Quality – Design and execute comprehensive test plans, including functional, performance, and smoke testing, to ensure high‑quality code and reliable systems.

Minimum Qualifications

• Bachelor’s or Master’s degree in Computer Science or a related technical field, or equivalent professional experience.
• 5+ years of software development experience (3+ for Master’s) building scalable, robust, and fault‑tolerant solutions with a specialization in front‑end software development.
• Proficient in modern CSS, JavaScript, TypeScript, and frameworks such as ReactJS.
• Experienced in API development and proficiency with object‑oriented languages such as Java, Kotlin or Scala to build scalable and reliable services.

Preferred Qualifications

• Experience with TypeScript, Kotlin, GraphQL, and CI/CD pipelines.
• Expertise in designing and building scalable web applications.
• A strong focus on quality, performance, and best practices in engineering.
• Comfortable using Git or similar version control systems.
• Experience with observability tools, performance monitoring, and data‑driven decision‑making.
• Comfortable in an Agile environment, using modern tools and practices to deliver software efficiently.
• Proven ability to collaborate with cross‑functional teams and manage work across multiple time zones.

Location & Work Model

No relocation assistance offered. This role is only available in the London location and requires employees to be in‑office at least three days a week.

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.

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.