Software Development Engineer II, Loyalty - Full Stack

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.

Introduction to the Team: 

Expedia Technology teams partner 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 Loyalty Engineering organization powers continuous engagement, re-engagement, and re-acquisition for travelers worldwide. We build the systems that create a durable growth flywheel for Expedia, deepening traveler relationships while driving measurable business impact across brands and markets. In this role, you will contribute to the development for the AI-empowered Loyalty charter — developing and delivering next-generation, intelligent engagement experiences powered by modern AI and agentic systems.

In this role, you will:

• Design, build, and maintain full-stack services and user experiences that power loyalty features, ensuring high availability, reliability, and performance across the stack.

• Implement clean, maintainable low-level designs, APIs, and data models to support loyalty programs, transactional flows, and customer-facing experiences across multiple products.

• Collaborate with product, design, and other engineering teams to translate business and customer requirements into scalable technical solutions that can be reused across domains.

• Write high-quality, testable code, perform code reviews, and contribute to continuous improvement of engineering standards, operational excellence, and deployment practices for loyalty services.

• Troubleshoot, debug, and optimize services and front-end components in production, using data and telemetry to drive reliability, security, and performance improvements.

• Safely integrate and operate AI/ML‑enabled solutions that improve outcomes, including familiarity with AI-driven systems, tools, or workflows and applying AI/ML concepts to real world products.

Minimum Qualifications:

• Bachelor’s degree in Computer Science or a related technical field; or Equivalent related professional experience.

• 2+ years of relevant professional experience.

• Professional software development experience working on end-to-end services or applications, including ownership of components or services in production.

• Hands-on experience with full-stack development, including system design (LLD), service/API development, and data modeling, plus front-end implementation using modern frameworks and tooling.

• Demonstrated ability to design, implement, test, and maintain services within a broader system, collaborating cross-functionally to deliver business outcomes.

Preferred Qualifications:

• Experience designing and evolving service contracts, low-level designs, and data models for complex, high-traffic systems using Java.

• Strong full‑stack development experience building scalable web applications with React and modern frontend architectures.

• Background working with loyalty, rewards, e-commerce, or similar transactional domains, with a focus on scalable and secure architectures.

• Experience operating services at scale, including monitoring, alerting, incident response, and continuous improvement of system reliability and performance.

• Ability to safely integrate and operate AI‑enabled solutions, leveraging tools such as GitHub Copilot, Cursor, and Claude to improve developer productivity and customer experiences.

• Familiarity with AI-driven systems, tools, or workflows and applying AI/ML concepts to real world products, including exposure to recommendation, personalization, or ranking systems in web or app experiences.

• Experience in ad-tech and user targeting is a plus.

The total cash range for this position in San Jose is $129,000.00 to $180,500.00. Employees in this role have the potential to increase their pay up to $206,500.00, 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.

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 .

We are proud to be named as a Best Place to Work on Glassdoor in 2024 and be recognized for award-winning culture by organizations like Forbes, TIME, Disability:IN, and others.

Expedia Group's family of brands includes: Brand Expedia®, Hotels.com®, Expedia® Partner Solutions, Vrbo®, trivago®, Orbitz®, Travelocity®, Hotwire®, Wotif®, ebookers®, CheapTickets®, Expedia Group™ Media Solutions, Expedia Local Expert®, CarRentals.com™, and Expedia Cruises™. © 2024 Expedia, Inc. All rights reserved. Trademarks and logos are the property of their respective owners. CST: 2029030-50

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 who the recipient is. Expedia Group does not extend job offers via email or any other messaging tools to individuals with whom we have not made prior contact. Our email domain is @expediagroup.com. The official website to find and apply for job openings at Expedia Group is careers.expediagroup.com/jobs .

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, or veteran status. 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.