Senior Data Platform Engineer (Data Lake and Catalog)

Expedia; Greater London; On-site; GBP 100,000 - 140,000; Full time

Job summary

Expedia Group is seeking a Senior Software Engineer to join our Data Lake and Catalog team. You will design, build, and evolve scalable data platform software, and lead by example with clean, well-tested code.

Collaborate with cross-functional partners to clarify requirements, deliver reliable services, mentor peers, and drive observability and production reliability across Expedia Group's Lakehouse initiatives.

Qualifications

• Proven experience as a senior software engineer delivering production systems at scale.
• Strong knowledge of JVM and server-side Kotlin/Java.
• Solid understanding of Hadoop ecosystem (Spark, Hadoop, Hive).
• Experience with cloud data infrastructure, especially AWS (EMR/S3/Glue).
• Experience working in Agile environments and collaborating across teams.

Responsibilities

• Design, build, and evolve maintainable, scalable data lake platform software.
• Lead by example with clean, well-tested code and strong engineering practices.
• Promote reliability and observability by focusing on SLOs and incident learnings.
• Partner with engineers and stakeholders to clarify requirements and deliver effectively.
• Break down complex problems into pragmatic technical solutions and plans.
• Own services and platform capabilities through design, delivery, and production operations.
• Lead technical design of services supporting scale, resilience, and evolution.
• Mentor other engineers through guidance and day-to-day collaboration.
• Collaborate with architects and partner teams to build cross-organizational solutions.

Skills

JVM & Kotlin/Java

Hadoop/Spark/Hive

AWS (EMR/S3/Glue)

Agile collaboration

Observability & DevOps

Code reviews

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. Expedia Group seeks a motivated and results-oriented Senior Software Engineer to join our Data Lake and Catalog team. As a Senior Software Engineer on an industry-leading data platform, you will build the core of Expedia Group’s Lakehouse and data discoverability capabilities, evolving how we store, govern, and expose data so product and analytics teams can easily find, understand, and trust the data they need. You will collaborate with experienced software engineers and cross-functional partners to improve our technology, design and develop new services and software solutions, and build and track metrics to ensure high-quality results. You will contribute to technical direction through strong engineering judgment, influence system design, and work closely with business partners to turn product vision into scalable, reliable systems. We love contributing our work to open-source communities and have successfully done so with tools like Circus Train, a Hive dataset replication tool, and Waggle Dance, a federation service that allows access to data lake tables across multiple catalogs. Recently, we added Hive support to Apache Iceberg, a high-performance open table format for large analytic datasets that underpins many modern Lakehouse architectures. We guarantee you’ll learn a lot and won’t be bored!

What you’ll do

• Design, build, and evolve maintainable, scalable, testable, and observable software for our data lake platform.
• Lead by example in engineering quality through clean, well-tested code and strong coding practices.
• Promote an SLO-driven culture by contributing to reliability goals, observability, and incident learnings.
• Partner closely with engineers and other stakeholders to clarify requirements and deliver effectively.
• Break down complex problems into pragmatic technical solutions, estimates, and implementation plans.
• Own services and platform capabilities through design, delivery, and production operation.
• Lead the technical design of services and platform capabilities that support scale, resilience, and long-term evolution.
• Mentor other engineers through technical guidance, pairing, and day-to-day collaboration.
• Collaborate with architects and partner teams across the organisation to build solutions that benefit Expedia Group more broadly.
• Stay current with relevant technology trends and apply them thoughtfully to improve the platform and developer experience.

Who you are

• Proven experience as a senior software engineer building and operating production systems at scale.
• Strong passion for technology, engineering excellence, and solving complex engineering problems.
• Experience delivering end-to-end solutions with a focus on scalability, reliability, and observability.
• Strong knowledge of the JVM and server-side Kotlin/Java programming.
• Solid understanding of the Hadoop ecosystem, including Spark, Hadoop, and Hive.
• Strong experience with cloud platforms and data infrastructure, especially AWS, including EMR, S3, and Glue.
• Experience working in Agile environments and contributing through code reviews, design discussions, and collaborative development.
• Strong communication skills, with the ability to work effectively across technical and business stakeholders.
• Ability to manage multiple priorities, make sound technical trade-offs, and deliver in a fast-paced environment.
• Good understanding of architectural patterns and trade-offs, with confidence in recommending practical technical approaches.

Accommodation requests

Expedia Group is committed to providing an inclusive and accessible recruiting experience.

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.

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.

Expedia Group, Inc. (NASDAQ: EXPE) is the global travel marketplace with one purpose: to help travelers explore the world, one journey at a time.

Expedia Group™ connects travelers, partners, and advertisers through its trusted brands, leading technology, and rich first-party data, delivering predictive, personalized experiences that shape the future of travel.

Expedia Group’s ecosystem includes three flagship consumer brands – Expedia®, Hotels.com®, and Vrbo® – the largest B2B travel business, and a premier advertising network.

Guided by an experienced and passionate global team, Expedia Group helps millions of travelers in more than 70 countries explore the world with confidence and ease.

Employment opportunities and job offers at Expedia Group will always come from Expedia Group’s Talent Acquisition and hiring teams.

Never provide sensitive, personal information to someone unless you’re confident about who they are.

We do not send job offers via email, or any other messaging tools, to individuals we have not had prior contact.

Our email domain is @expediagroup.com.