FLEX Senior Full Stack Software Engineer

This is a temporary position. The assignment duration is through September 6, 2027. JOB SUMMARY As a FLEX Senior Full Stack Software Engineer at Marriott, you will be working on a state of the art React based micro-ui architecture. You will help build the next generation hospitality web portal to assist our customers in traveling the world for work and pleasure. You will work with product owners, UX, back-end engineers and QA engineering to build scalable web software that performs well on all modern web browsers and devices. CANDIDATE PROFILE Education and Experience Required - Bachelor's degree in computer science, Software Engineering, or a related field preferred (or equivalent experience) - 7+ years’ experience in software design and development with expert-level expertise in multiple programming languages like JavaScript, TypeScript, NodeJS, Nextjs, Reactjs - Strong experience in designing and developing scalable microservices using modern backend frameworks and cloud-native architectures - Knowledge of backend technologies – NodeJS, Java, SQL, NoSQL, Spring boot, Kafka - Experience using GraphQL and REST for building robust APIs and service integrations - Experience with Automation, CI/CD, Release Management processes and Application Deployments - Exposure to Agentic GenAI development tools like Claude, ChatGPT, or other tools - Experience in building enterprise-scale web applications using micro front-end architecture - Experience in developing software using front-end libraries/frameworks—primarily React - Experience in customizing webpack configurations and writing custom plugins to bundle code as UMD bundle for isomorphic consumption - Strong knowledge in performance optimization techniques across both front-end and microservice layers - Experience in using Jest, Jasmine, Mocha, and JUnit with Mockito for unit and integration testing Preferred - Experience in agentic GenAI development tools like Claude, ChatGPT or other tools - Experience with Figma, Adobe Experience Manager or Headless CMS platforms - Familiarity with DevOps & Monitoring tools such as Git, JIRA, Jenkins, Harness, and Dynatrace - Demonstrated UI implementation skills, supported by a portfolio showcasing attention to typography, color, imagery, motion, and graphic elements - Proficiency in developing custom reusable components using Atomic Design principles - Experience integrating Adobe Experience Manager (AEM) with React components in both headful and headless architecture - Background in working with multi-repository code bases - Ability to write deployment configurations - Awareness of industry developments, best practices, and environments in web application design and development - Strong verbal and written communication skills, with the ability to present complex technical ideas in clear business terms CORE WORK ACTIVITIES - Develop and maintain Typescript libraries and platform tools for our React / NextJS applications - Deep understanding of the cloud-native solution, microservices-architecture, and at least one or more of the following areas: API orchestration architecture, mobile-front end architecture - Collaborate with cross-functional teams to design and implement user-friendly features for all form factors - Optimize applications and services for maximum speed, scalability, and reliability - Ensure the technical feasibility of UI/UX designs and propose alternative solutions when needed - Participate in code reviews to maintain code quality and consistency - Troubleshoot and debug issues across the stack as they arise - Stay up to date with the latest front-end and microservice technologies and best practices - Mentor and provide guidance to junior developers - Communicate effectively with team members, stakeholders, and clients At Marriott International, we are dedicated to being an equal opportunity employer, welcoming all and providing access to opportunity. We actively foster an environment where the unique backgrounds of our associates are valued and celebrated. Our greatest strength lies in the rich blend of culture, talent, and experiences of our associates. We are committed to non-discrimination on any protected basis, including disability, veteran status, or other basis protected by applicable law.