Senior Mern Stack Developer

MassMutual India; Telangana; On-site; INR 2,800,000 - 4,000,000; Full time

Job summary

MassMutual India is seeking a Senior MERN Stack Developer to design, build, and optimize scalable web applications. You will work on React.js, Node.js/NestJS, and cloud-native architectures across AWS, MongoDB, and PostgreSQL. The role emphasizes microservices, API design, and CI/CD delivery.

The ideal candidate has 8–11 years of experience, strong leadership, and the ability to mentor junior developers while collaborating with cross-functional teams.

Qualifications

• 8–11 years of experience in full-stack development with MERN stack.
• Proficiency in React.js, Node.js/NestJS, and cloud-native design.
• Experience with microservices, REST APIs, and database modeling in MongoDB and PostgreSQL.

Responsibilities

• Design, develop, and maintain modern web apps using React.js, Node.js, and NestJS.
• Build scalable REST APIs and microservices with secure, performant code.
• Develop responsive UIs with React.js and TypeScript.
• Model data using MongoDB and PostgreSQL; optimize queries.
• Deploy on AWS; containerize with Docker and manage via Kubernetes (AWS EKS).
• Build CI/CD pipelines and drive DevOps automation.
• Collaborate with product, architects, and QA to deliver quality solutions.
• Lead reviews, troubleshoot issues, and mentor junior developers.

Skills

React.js

Node.js

NestJS

TypeScript

JavaScript

REST APIs

Microservices

AWS

Kubernetes

Docker

CI/CD

Agile/Scrum

Security

Performance tuning

HTML5

CSS3

MongoDB

PostgreSQL

Tools

GitHub Actions

Jenkins

Job description

Senior MERN Stack Developer (React.js + Node.js) – Job Description

Position Summary

We are seeking a highly skilled Senior MERN Stack Developer to join the Wealth Management Technology team. The ideal candidate will be responsible for designing, developing, and supporting scalable, cloud-native web applications using React.js, Node.js/NestJS, AWS, MongoDB/PostgreSQL, and Kubernetes. The role requires strong full-stack development expertise, experience building microservices-based applications, and the ability to lead technical design and development efforts. Similar responsibilities are documented for WMT full-stack developer roles involving ReactJS, NodeJS, AWS EKS, MongoDB, PostgreSQL, APIs, and CI/CD deployments.

Experience: 8-11 Years

Key Responsibilities

• Design, develop, and maintain modern web applications using React.js, Node.js, and NestJS.
• Build reusable, scalable, and secure REST APIs and microservices.
• Develop responsive and high-performance user interfaces using React.js and TypeScript.
• Design and optimize data models using MongoDB and PostgreSQL.
• Deploy and support applications on AWS cloud platforms.
• Containerize applications using Docker and manage deployments through Kubernetes (AWS EKS).
• Build and maintain CI/CD pipelines and DevOps automation.
• Collaborate with product owners, architects, business analysts, and QA teams to deliver high-quality solutions.
• Perform code reviews, troubleshoot production issues, and ensure adherence to engineering best practices.
• Mentor junior developers and provide technical leadership across projects.

Required Technical Skills

• Strong expertise in React.js, JavaScript, TypeScript, HTML5, and CSS3
• Strong backend development experience with Node.js and NestJS
• Experience building RESTful APIs and Microservices
• Expertise with MongoDB and PostgreSQL
• Hands-on experience with AWS services (EKS, ECS, Lambda, S3, RDS, CloudWatch, IAM)
• Strong knowledge of Docker and Kubernetes
• Experience with CI/CD tools such as GitHub Actions, Jenkins, or similar
• Knowledge of Agile/Scrum development methodologies
• Experience with application security, scalability, and performance optimization