Senior Software Development Engineer
Confirmed on the employer's own hiring board on Sep 28, 2026. First seen by Alion on Sep 21, 2026.
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.
Senior Software Development Engineer
Expedia Technologyteamspartner with our Product teams to create innovative products, services, and tools to deliver high-quality experiences for travelers, partners, and our employees. A singular technology platform powered by data and machine learning provides secure, differentiated, and personalized experiences that drive loyalty and traveler satisfaction.
The Senior Software Engineer role sits within the Universal Messaging Platform (UMP) team-Expedia Group’s core communications platform.UMP powers high-scale, reliable delivery across Email, SMS, Push, Inbox, andemergingchannels, enablingtimely, trusted engagement with millions of travelers worldwide.
As a Senior Software Engineer on the Inbox Experience team, you will lead the architecture, development, and operation of mission-critical systems that elevate traveler experience, strengthen loyalty, and drive business growth atglobalscale.
In this role, you will:
Design, build, and evolve scalable, reliable services and components, including system design, low-level design, API design, and data modeling to support high-traffic, customer-facingand platform experiences.
Write, review, andmaintainhigh-quality, well-tested code, driving engineering best practices in code quality, security, observability, and performance across the team.
Take end-to-end ownership of complex features or services, from technical design through implementation, deployment, monitoring, and iterative improvement in production.
Collaborate closely with product, design, and cross-functional engineering teams to break down ambiguous business problems into clear technical solutions that can be reused across multiple domains.
Safely integrate andoperateAI/ML-enabled solutions that improve outcomes, including familiarity with AI-driven systems, tools, orworkflowsandapplyingAI/ML concepts to real world products.
Contribute to technical direction byparticipatingin design reviews, proposing improvements to architecture and operational processes, and mentoring other engineers to raise the overall technical bar.
Minimum Qualifications:
Bachelor’s degree in Computer Scienceor a related technical field; or Equivalent related professional experience.
8+ years of relevant professional experience.
Proven experience owning services or components through the full software development lifecycle, including design, implementation, deployment, and on-call or operational support.
Proficiencyin at least one modern programming language and associated frameworks, withstrongunderstanding of system design, API design, and data modeling concepts.
Expertproficiencyin Java, Kotlin,GraphQL,grpc, Spring boot
Strong experience building distributed systems, RESTful APIs, and microservices.
Experience with cloud platforms (AWS, GCP, or Azure) and containerization technologies (Docker, Kubernetes).
Familiarity with CI/CD pipelines, infrastructure code, and DevOps practices.
Experience working on systems that integrate with multiple services or domains, ensuring reliability, scalability, and effective observability.
Preferred Qualifications:
Experience designing and evolving service or multi-service architectures at scale, including patterns for resiliency, fault tolerance, and performance optimization.
Track recordof leading technical design efforts, influencing architectural decisions, and driving improvements to engineering practices and operational excellence within a team or domain.
Hands-on experience with data-driven decision making, including defining metrics, using logging/monitoring/analytics to guide iterations, and improving system health and user outcomes.
Familiarity with AI-driven systems, tools, or workflows, with experience safely integrating and operating AI/ML-enabled solutions that enhance product capabilities or developer productivity, including Safely integrating and operating AI/ML-enabled solutions that improve outcomes.
Demonstrated depth in one or more technical domains (such as distributed systems, data-intensive services, or full stack web applications) whileremainingadaptable to work across multiple domains as business needs evolve.
Starting pay for this role will vary based on multiple factors, including location, available budget, and an individual’s knowledge, skills, and experience. Pay ranges may be modified in the future.
Benefits and perks
Expedia Group offers benefits and perks designed to support employees and their families, including medical, dental, and vision coverage, paid time off, an Employee Assistance Program, wellness and travel reimbursement, travel discounts, and International Airlines Travel Agent Network (IATAN) membership. Learn more about life at Expedia Group at https://careers.expediagroup.com/life.
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 athttps://expedia.service-now.com/askeg?id=job_accommodation.
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 https://careers.expediagroup.com/jobs/.
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, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, veteran status, or any other characteristic protected by law. This employer participates in E-Verify. The employer will provide the Social Security Administration (SSA) and, if necessary, the Department of Homeland Security (DHS) with information from each new employee's I-9 to confirm work authorization.