Senior Software Engineer I [T500-21316]

About Us :

Marriott International Inc. , headquartered in Bethesda, Maryland, USA, was founded in May 1927 by J. Willard Marriott and Alice S. Marriott with a modest nine-seat A&W root beer stand. Guided by the family's leadership and core principles, Marriott International today has grown into a global hospitality giant, operating approximately 9,000 properties and over 30 leading brands in more than 140 countries and territories.

From such humble beginnings to becoming the world’s largest hotel company, Marriott International has never stopped searching for inventive ways to serve its customers, provide opportunities for its associates, and grow their business. At

Marriott Tech Accelerator center

(MTA), Hyderabad, India, Marriott is exploring the world we live in and all its possibilities. At Marriott Tech Accelerator, we are a team of passionate engineering minds dedicated to creating and building cutting-edge solutions that streamline operations and elevate guest experiences.

Marriott Tech Accelerator center is fully owned and operated by ANSR. All associates at Marriott Tech Accelerator will be ANSR employees, delivering services exclusively to ANSR's client, Marriott International.

Role Title :

Senior Software Engineer I

Position Summary :

We are seeking an exceptional full stack engineering talent to be part of the digital web engineering team of Marriott’s next-generation hospitality brands experience portal. The successful candidate will design, build, and deliver scalable enterprise applications using a state-of-the-art React-based micro-frontend architecture. You will collaborate with product owners, UX designers, engineers, and QA teams to create innovative components and workflows, leveraging GenAI tools to enhance productivity and user experience.

In this role, you will contribute to both front-end and back-end development, ensuring the platform performs optimally across all modern browsers and devices. You will also participate in the design and implementation of modular, maintainable, and high-performance microservices that power our platform. The ideal candidate is product-focused, passionate about solving complex problems, and committed to driving Marriott value through cutting-edge technology solutions.

Job Responsibilities :

Develop and maintain Typescript libraries and platform tools for our React / Next.JS applications.

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

Support the adoption of AI-first practices by learning and using GenAI-based tools (such as ChatGPT, Claude, or similar) to assist with technical tasks like component development, QA automation, and workflow improvements.

Contribute to the integration of GenAI solutions by experimenting with available tools to help automate repetitive tasks, improve code quality, and boost team productivity under the guidance of senior developers.

Collaborate with cross-functional teams to explore and implement GenAI use cases in software development, testing, and deployment, while continuously learning from peers and mentors.

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.

Communicate effectively with team members, stakeholders, and clients.

Skill and Experience :

4+ years’ experience in software design and development with expert-level expertise?in multiple programming languages like JavaScript, TypeScript, NodeJS, Next.js, React.js.

Strong experience in designing and developing scalable microservices using modern backend frameworks and cloud-native architectures.

Exposure to agentic GenAI development tools like Claude, ChatGPT, or other tools.

Experience with REST based framework for building robust APIs and service integrations.

Experience with Automation, CI / CD, Release Management processes and Application Deployments

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.

Understanding of performance related concerns, where issues can arise and how to solve for them.

Experience in agile software methodologies

Education and Certifications :

Graduate degree in Computer Science or Engineering

Work location : Hyderabad, India.

Work mode : Hybrid

Marriott’s core values :

At Marriott, our make us who we are. We believe that success is never final. As we change and grow, the beliefs that are most important to us stay the same—putting people first, pursuing excellence, embracing change, acting with integrity, and serving our world. Being part of Marriott Tech Accelerator means being part of a proud history and a thriving culture.