Software Development Engineer II

Expedia, Inc.; Greater London; Hybrid; GBP 50,000 - 70,000; Full time

Job summary

A global travel technology company in the United Kingdom is seeking a Software Engineer to design and operate low-latency data pipelines using Java and Kotlin. You will troubleshoot production issues, operate streaming services, and collaborate with product managers and engineers to deliver impactful solutions. The ideal candidate has a Bachelor's in Computer Science and at least 2 years of experience in software development, particularly with cloud environments and streaming technologies. A flexible work model and a benefits package are available.

Benefits

Exciting travel perks

Generous time-off

Career development resources

Qualifications

• 2+ years of professional software development experience with backend/microservices.
• Hands-on experience with streaming platforms and event-driven architectures.
• Experience building production-grade applications in public/hybrid cloud.

Responsibilities

• Design, build, and operate data pipelines in Java/Kotlin.
• Write efficient, well-tested code with peer reviews.
• Troubleshoot complex production issues and ensure reliability.

Skills

Java

Kotlin

Streaming platforms (Kafka, Kinesis, Pub/Sub)

Cloud environments (AWS, GCP, Azure)

Problem-solving

Testing strategies

Education

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

Tools

GitHub Copilot

Job description

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.

What you will do:

• Design, build, and operate highly available, low‑latency streaming services and data pipelines (primarily in Java/Kotlin) running in public/hybrid cloud environments.
• Write clean, efficient, well‑tested code; practice pair programming and conduct thorough code reviews.
• Apply object‑oriented design, distributed computing, performance/scalability tuning, and advanced data structures/algorithms to real‑time streaming and data processing.
• Build and evolve microservices and data APIs that power analytics and personalized experiences.
• Implement robust testing, monitoring, alerting, and observability to ensure reliability and rapid incident response.
• Troubleshoot complex production issues, perform root‑cause analysis, and drive long‑term fixes and improvements.
• Collaborate with product managers, data engineers, analysts, and platform teams to deliver high‑impact solutions.
• Contribute to technical design documents; communicate trade‑offs and decisions clearly within the team.
• Stay current with advancements in cloud data platforms, streaming technologies, and best practices; mentor junior engineers.

Who you are:

• Bachelor’s or Master’s degree in Computer Science or a related field, or equivalent professional experience.
• 2+ years of professional software development experience, including building and operating backend/microservices in Java; Kotlin or Scala experience is a plus.
• Hands‑on experience with streaming platforms (e.g., Kafka, Kinesis, Pub/Sub) and event‑driven architectures.
• Experience building production‑grade data processing applications in public/hybrid cloud environments (e.g., AWS, GCP, Azure).
• Solid understanding of software engineering fundamentals: algorithms, data structures, concurrency, distributed systems, and design patterns.
• Proficiency in testing strategies (unit, integration), CI/CD, monitoring, alerting, and incident management.
• Familiarity with observability concepts and tools to monitor application health and performance.
• Strong debugging, problem‑solving, communication, and collaboration skills; self‑starter with a learning mindset.
• Familiarity with basic AI tools (e.g., GitHub Copilot, code assistants) to accelerate development or documentation, used responsibly within company policies.

Preferred qualifications:

• Experience with Kafka Streams (KStream) crm>metics)(
  and/or Apache Flink for stateful stream processing.
• Familiarity with schema registry, data lake technologies, and data quality frameworks.

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.

EEO Statement

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.