Principal Engineer, Web Platform

Job Overview As a Principal Web Platform Engineer at Marriott, you will be working on a state of the art React based micro-frontend architecture with Spring Boot Microservices. You will create and maintain new GenAI tools to create components and workflows used by our Application Engineers. You will work with performance engineers, QE Engineers, and lead developers to enhance the way all developers at Marriot Digital deliver products. You will work with product owners, UX, back-end/front-end engineers and QA engineering to build scalable web software that performs well on all modern web browsers and devices. Key Responsibilities Develop and maintain Typescript libraries and platform tools for our React / Next.

JS applications. Develop and maintain Microservices for NextJS renderers in Java SpringBoot. Collaborate with cross-functional teams to design and implement user-friendly features for all form factors. Optimize applications for maximum speed and scalability. Ensure the technical feasibility of UI/UX designs. Be ready to propose alternative solutions. Participate in code reviews to maintain code quality and consistency. Troubleshoot and debug issues as they arise. Stay up to date with the latest front-end technologies and best practices. Mentor and provide guidance to junior developers. Communicate effectively with team members, stakeholders, and clients. Qualifications 7+ years' experience in software design and development with expert level expertise i n multiple programming languages like JavaScript, TypeScript, NodeJS, Next.js, React.js Experience using GraphQL and REST 5+ years experience with Java and Springboot microservices. Exposure to agentic GenAI development tools like Claude, ChatGPT or other tools 5+ years hands-on experience with application development. Experience in building enterprise scale web applications using micro front-end architecture Experience in developing software using Front-end libraries/frameworks - primarily React Strong knowledge in performance optimization techniques Experience in using Jest, Jasmine, Mocha, and Junit Preferred Qualifications Experience in agentic GenAI development tools like Claude, Cursor, ChatGPT or other tools Experience with Figma, Adobe Experience Manager or Headless CMS platforms. Familiarity with DevOps 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 Background in working with multi-repository code bases Ability to write deployment configurations Experience with deployment tools like HelmCharts & Github Actions or similar tools. 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 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. All positions offer a 401(k) plan, stock purchase plan, discounts at Marriott properties, commuter benefits, employee assistance plan, and childcare discounts. Benefits are subject to terms and conditions, which may include rules regarding eligibility, enrollment, waiting period, contribution, benefit limits, election changes, benefit exclusions, and others. Click here to learn more. Full-time positions also offer coverage for medical, dental, vision, health care flexible spending account, dependent care flexible spending account, life insurance, disability insurance, accident insurance, adoption expense reimbursements, paid parental leave and educational assistance.

Washington Applicants Only :

Employees will accrue paid sick leave, 0.077 PTO balance for every hour worked and be eligible to receive a minimum of 9 holidays annually. Marriott HQ is committed to a hybrid work environment that enables associates to Be connected. Headquarters-based positions are considered hybrid, for candidates within a commuting distance to Bethesda, MD; candidates outside of commuting distance to Bethesda, MD will be considered for Remote positions. Marriott International is the world's largest hotel company, with more brands, more hotels and more opportunities for associates to grow and succeed. Be where you can do your best work,​ begin your purpose, belong to an amazing global​ team, and become the best version of you.