Sr. Developer – MERN

Codecraft; Bengaluru; On-site; INR 800,000 - 1,200,000; Full time

Job summary

A leading technology firm in India is seeking a MERN Stack Developer with 5-6 years of experience in building scalable full-stack applications. The role requires expertise in Node.js for backend development and React.js for frontend components. You will be responsible for developing RESTful APIs, integrating with databases, and participating in architectural discussions. Strong communication skills and proactive ownership of tasks are essential for this position.

Qualifications

• 5-6 years of experience in backend development with Node.js.
• Proven skills in designing RESTful APIs and backend system performance tuning.
• Experience building responsive UI components using React.js.

Responsibilities

• Develop scalable backend services using Node.js and Express.js.
• Build responsive, reusable UI components using React.js.
• Collaborate in system design discussions and translate requirements into technical tasks.

Skills

Node.js

Express.js

MongoDB

RESTful API design

React.js

React Hooks

Modular Backend Architectures

Git

API Versioning

Tools

Docker

Kubernetes

Job description

No. of Positions: 01

Location: Bangalore

Experience Level: 5-6years

Role Overview

We are looking for a MERN Stack Developer with solid experience building scalable full-stack applications, with particular strength in Node.js backend development. The ideal candidate can design APIs, structure services, build efficient front-end components, and take ownership of end-to-end module delivery. This role requires someone who understands system flow, architecture basics, and can work closely with cross-functional teams.

Responsibilities

Backend (Primary Focus – Node.js)

• Develop scalable backend services using Node.js, Express.js, and modern JavaScript (ES6+).
• Design and implement RESTful APIs, authentication flows, and business logic layers.
• Integrate with databases such as MongoDB, and write optimized queries.
• Build microservices or modular backend architectures as needed.
• Implement security best practices, API versioning, error handling, and logging.
• Optimize backend performance, scalability, and reliability.
• Troubleshoot production issues and implement long-term, stable solutions.

Frontend (React)

• Build responsive, reusable UI components using React.js, React Hooks, and modern JavaScript.
• Integrate frontend with backend APIs and manage state effectively.
• Work with HTML5, CSS3, Bootstrap/Material UI and component-driven design.
• Ensure cross-browser, cross-platform compatibility and optimal performance.

Full-Stack Responsibilities

• Collaborate in system design discussions and contribute to decisions on architecture and data flow.
• Translate requirements into well-structured technical tasks.
• Ensure seamless integration between frontend, backend, and database layers.
• Participate in code reviews, design reviews, and contribute to engineering best practices.
• Work closely with QA, DevOps, and product teams for smooth delivery.

Required Skills & Experience

Backend (Must-Have)

• Node.js, Express.js, MongoDB, RESTful API design
• Good understanding of: Asynchronous programming & event-driven patterns, Error handling, API versioning, and security best practices, JWT/OAuth authentication, Performance tuning and backend optimization

Frontend

• React.js, React Hooks, Context API/Redux, Modern JavaScript (ES6+), HTML5, CSS3, Responsive UI

Additional Technical Skills

• Experience with Git and standard branching workflows.
• Basic understanding of CI/CD pipelines.
• Familiarity with cloud platforms (AWS/GCP/Azure) is a plus.
• Experience with Docker/Kubernetes is an added advantage.

Soft Skills

• Strong communication skills and ability to work directly with product/engineering teams.
• Proactive ownership of tasks and outcomes.
• Ability to break down requirements into manageable tasks.
• Good debugging & problem-solving skills.
• Ability to work independently and in small teams.