Web & Mobile App Software Developer/Engineer

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. To shape the future of travel, people must come first. 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. Come build the future of travel with us! At Expedia Group, we design cutting‑edge technology that makes travel smoother and more memorable for our travellers and delivers innovative solutions for our partners. Our software engineers tackle some of the most complex challenges in global travel, building platforms and services that operate at massive scale across brands like Expedia, Hotels.Within engineering, the Membership & Engagement organisation builds the platforms and experiences that power Expedia Group’s loyalty programmes , helping travellers earn, track, and redeem rewards while surfacing meaningful membership value across the end ‑ to ‑ end journey. The Loyalty Experience team owns the backend services, experience APIs and that power how travellers earn, track, and redeem rewards—and how loyalty value is surfaced throughout discovery, shopping, checkout, and post ‑ booking engagement, both on Mobile Native App and Web Platforms. We build and operate Kotlin/Java services and GraphQL /REST APIs that sit at the heart of loyalty, integrating with multiple brands and platforms at global scale. We partner closely with product, data, mobile, and web teams across time zones to deliver consistent, high‑quality experiences.Design, build, and operate distributed backend services and GraphQL‑backed experience APIs that power loyalty features across web and native applications.Design across multiple services , making trade‑offs explicit, owning low‑level system design (LLD), and evolving data models and success metrics within your problem space.Collaborate closely with product managers, designers, mobile and web engineers, data teams, and platform partners to translate business requirements into scalable technical solutions.Lead and contribute to technical design reviews, code reviews, and architectural discussions , helping evolve engineering standards and shared practices.Instrument services with monitoring, logging, dashboards, SLIs/SLOs , and participate in on‑call rotations and incident response.Use modern JVM, cloud, GraphQL, and AI‑assisted development tooling where it improves developer productivity while maintaining high standards for quality, privacy, and security.You lead through code, design, and operational ownership rather than people management, consistently delivering results while positively impacting the broader organisation.Minimum Qualifications:Bachelor’s degree in Computer Science, Engineering, or a related technical field, or equivalent practical experience.Strong experience with Kotlin and/or Java , building distributed systems and APIs ( GraphQL and/or REST).Proven ability to own services end‑to‑end , including system design, implementation, testing, deployment, observability, and operational support.Solid understanding of distributed systems fundamentals , including concurrency, data modelling, API design, performance optimisation, and failure handling.Experience working in high‑availability, production‑critical environments with on‑call responsibilities.Strong track record in operational excellence , including defining SLIs/SLOs, incident management, post‑incident reviews, and continuous improvement.Hands‑on experience working with cloud‑native architectures and modern observability tooling.Exposure to AI‑ or ML‑enabled systems , or using AI‑driven tools to improve development workflows, testing, diagnostics, or productivity.Experience collaborating across multiple teams and domains , influencing technical decisions beyond immediate ownership boundaries.Expedia Group's family of brands includes: Brand Expedia, Hotels.CST: 2029030-50Employment opportunities and job offers at Expedia Group will always come from Expedia Group’s Talent Acquisition and hiring teams. All qualified applicants will receive consideration for employment without regard to race, religion, gender, sexual orientation, national origin, disability or age.

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