Software Development Engineer II - Full-Stack - Front-End Focus

Introduction to the Team Our Technology Team partners with teams across Expedia Group 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. We are the Strategic Partnerships & Affiliates team in the Expedia Product & Technology division of Expedia Group. We are building the next‑generation, scalable B2B partnership platform that will power hundreds of thousands of demand partners across the industry, ranging from big businesses and enterprises to small bloggers, micro‑influencers, and creators, in helping them recommend Expedia Group brands to their audiences and in the process grow their businesses. We aim to redefine the travel partnerships sector by building innovative partner tools and solutions that incorporate the new ways in which today’s travelers discover and shop for travel products. To do this, we need technically passionate engineers with a strong frontend foundation, an entrepreneurial approach, and a love of solving complex problems. This role is primarily focused on building modern, scalable user experiences using React.js and TypeScript, while also contributing to backend services and APIs in Java. In this role, you will: Design, build, test, and maintain scalable frontend applications and user‑facing platform capabilities for advertising technology products and services, with a primary focus on React.js and TypeScript Develop intuitive, performant, and maintainable web experiences that support a wide range of B2B partners, from large enterprises to creators and small businesses Contribute to backend services and APIs using Java or Kotlin, supporting frontend functionality and end‑to‑end product delivery Participate in system design, low‑level design, API design, and data modeling to deliver reliable, extensible solutions across frontend and backend components Collaborate with engineers, product, and partner teams to translate business needs into technical solutions that improve advertising platform capabilities and customer outcomes Own well‑defined components and services, troubleshoot production issues, and improve operational health through monitoring, debugging, automation, and continuous improvement Write high‑quality, secure, and well‑tested code, participate in code reviews, and follow engineering standards that support performance, scalability, accessibility, and resilience Safely integrate and operate AI/ML‑enabled solutions that improve outcomes, including familiarity with AI‑driven systems, tools, or workflows, and apply AI/ML concepts to real‑world products Minimum Qualifications Strong proficiency in JavaScript, TypeScript, React.js, GraphQL Working proficiency in Java or Kotlin for backend development and service integration Bachelor’s degree in a technical field, or equivalent related professional experience 2+ years of software development experience building and supporting production systems and services Experience building frontend applications in a modern web stack, with an emphasis on component‑based architecture, state management, performance, and maintainability Experience owning components or services within a team, with responsibility for implementation, testing, deployment, and operational support Proficiency in software engineering fundamentals, including coding, data structures, algorithms, debugging, and version control, with working knowledge of system design, low‑level design, API design, and data modeling Experience developing reliable, scalable applications and working across more than one technical area or service, with the ability to diagnose issues and deliver maintainable solutions Preferred Qualifications Experience building software for advertising technology, marketplace, or other high‑scale distributed platforms Demonstrated strength in frontend engineering, including building responsive, accessible, and high‑performing user interfaces with React.js and TypeScript Experience contributing to architecture or design discussions for frontend applications, services, APIs, and data models within a team‑owned domain Demonstrated ability to improve service quality through observability, automation, performance tuning, and operational excellence practices Familiarity with AI‑driven systems, tools, or workflows, and experience applying AI/ML concepts in production‑oriented software environments Experience using data and metrics to inform engineering decisions, prioritize improvements, and measure the impact of technical solutions Location: Please note that this role is only available in Seattle, WA, in alignment with our flexible work model, which requires employees to be in the office at least three days a week. We are unable to offer relocation assistance for this role. The total cash range for this position in Seattle is $119,000.00 to $166,500.00. Employees in this role have the potential to increase their pay up to $190,500.00, which is the top of the range, based on ongoing, demonstrated, and sustained performance in the role. 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 Expedia Group is proud to offer a wide range of benefits to support employees and their families, including medical/dental/vision, paid time off, and an Employee Assistance Program. To fuel each employee’s passion for travel, we offer a wellness & travel reimbursement, travel discounts, and an International Airlines Travel Agent (IATAN) membership. View our full list of benefits. 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. 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. #J-18808-Ljbffr Expedia, Inc.