Software Development Engineer II

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 powers global travel for everyone, everywhere. We design cutting-edge technology to make travel smoother and more memorable, and we create groundbreaking solutions for our partners. Our diverse, vibrant, and welcoming community is essential to driving our success. A singular technology platform powered by data and machine learning provides secure, differentiated, and personalized experiences that drive loyalty and traveler satisfaction.

About the team – EG Clickstream EG Clickstream provides data that captures user behavior and experience across Expedia Group sites and apps. This data forms the building blocks for understanding user journeys: what products users search for, which features they see and use, and which marketing channels they arrive from. It powers analysis of Product and Marketing performance to support optimized decision-making and can also be used programmatically to drive personalized, adaptive experiences for our users.

About the role As a Software Development Engineer II on Expedia Group’s Clickstream team, you will design, build, and operate the real-time data platform that captures and processes user behavior across our sites and apps. You will engineer scalable, resilient streaming systems that power analytics, marketing, and personalized experiences globally. You bring strong analytical and troubleshooting skills, deep proficiency in coding and distributed systems design, and a passion for solving complex problems of scale. You are collaborative, creative, and thrive in a dynamic, agile environment where you continuously learn and raise the bar.

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) and/or Apache Flink for stateful stream processing.
• Familiarity with schema registry, data lake technologies, and data quality frameworks

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.

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. The official place to find and apply for roles is the Expedia Group careers website.

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.