SENIOR MERN STACK DEVELOPER – FULL-STACK WEB APPLICATIONS

Experience: 7+ Years Employment

ABOUT THE ROLE We are seeking an experienced Senior MERN Stack Developer who can independently build, maintain, and improve production-grade web applications. The candidate should be robust in frontend and backend development, comfortable gathering requirements, and capable of choosing appropriate implementation approaches rather than relying on step-by-step instructions.

KEY RESPONSIBILITIES - Work With Management, Clients, And Stakeholders to understand requirements and clarify expected outcomes. - Convert requirements into technical tasks, API specifications, database designs,

and implementation plans. - Build responsive web applications using

React.js and modern JavaScript/TypeScript. - Develop backend services and REST APIs using Node.js and Express.js. - Design and optimize

MongoDB schemas, queries, indexes, and data workflows. - Implement secure authentication, authorization, role-based permissions,

validation, and error handling. - Integrate third-party APIs, payment gateways, notification services, analytics, and other systems. -

Diagnose bugs, improve performance, and resolve production issues. -

Write maintainable code and automated tests; participate in code reviews.



- Use AI coding assistants to accelerate development while validating generated code. - Collaborate with mobile developers, QA,

UI/UX, and DevOps teams. - Support deployment, monitoring,

documentation, and ongoing maintenance.

REQUIRED SKILLS - 7+ years of professional web development experience. -

Strong expertise in React.js, Node.js, Express.js, MongoDB, JavaScript,

and TypeScript. - Solid understanding of REST APIs, data modeling,

application security, performance, and scalable architecture. -

Experience with Git, testing, CI/CD, Docker, and cloud deployment. -

Practical experience using AI development tools such as ChatGPT, GitHub

Copilot, Cursor, or equivalents. - Solid debugging, requirement analysis, estimation, and communication skills.

GOOD TO HAVE - React Native experience. - Experience integrating LLM

APIs, chatbots, document processing, RAG, or other AI-powered features. - Experience with PostgreSQL, Redis, Firebase, and AWS.

IDEAL CANDIDATE Someone who can independently understand a feature,

Identify Missing Requirements, Decide How To Implement It, Deliver reliable code, and explain progress and risks clearly.

Skills: communication,docker,redis,typescript,postgresql,rest apis,mongodb,git,ci/cd,react,node.js,aws,javascript

📌 Senior MERN Stack Developer (Mumbai)
🏢 Pharmizza Technology Solutions
📍 Mumbai