MERN Stack Developer

Greetings from Excellis IT Pvt. Ltd.

We are hiring for Mern Stack profile.

Experience :3 -4 years

Location- Kolkata (On-site ) Only Kolkata based candidates can apply

Note : Local candidates are preferred. Outstation candidates please do not apply.

About the Role

We are seeking a skilled MERN Stack Developer with 3–4 years of hands-on experience to join our engineering team. In this role, you will be responsible for developing and maintaining scalable web applications using MongoDB, , , and You will collaborate closely with product managers, UX/UI designers, and other developers to deliver high-quality solutions that meet business requirements.

Key Responsibilities

* Full-Stack Development: Design, develop, and maintain web applications using the MERN stack.

* API Design & Integration: Build and consume RESTful APIs with and ; integrate third-party services as required.

* Frontend Engineering: Implement responsive UI components in , ensuring optimal performance, accessibility, and cross-browser compatibility.

* Database Management: Model, query, and optimize MongoDB schemas; ensure data integrity, indexing, and efficient query performance.

* Code Quality & Testing: Write clean, modular, and reusable code; develop unit tests (e.g., Jest, Mocha) and end-to-end tests; participate in code reviews.

* Collaboration & Documentation: Work closely with cross-functional teams; document architecture decisions, API contracts, and setup processes.

* Deployment & Scaling: Assist with CI/CD pipelines, containerization (Docker), and cloud deployments (AWS, Azure, or similar). Monitor application performance and recommend improvements.

* Troubleshooting & Support: Diagnose and resolve production issues in a timely manner; participate in on-call rotations if required.

Required Qualifications

* Experience: 3–4 years of professional work experience specifically in MERN stack development.

Technical Skills:

* MongoDB: Proficient in schema design, aggregation pipelines, indexing, and performance tuning.

* & Strong understanding of server-side JavaScript, middleware, security best practices, and RESTful API architectures.

* Hands-on experience with component lifecycle, hooks (useState, useEffect, etc.), state management (Context API, Redux, or similar), and routing (React Router).

* JavaScript/TypeScript: Advanced knowledge of ES6+ features; TypeScript familiarity is a plus.

* HTML/CSS: Expertise in semantic HTML5, CSS3, Flexbox/Grid, and preprocessors (SASS/LESS) or CSS-in-JS libraries (Styled Components, Emotion).

* Version Control: Proficient with Git, branching strategies, and pull-request workflows.

* Testing: Familiarity with unit testing frameworks (Jest, Mocha) and frontend testing tools (React Testing Library, Enzyme).

Soft Skills:

* Strong problem-solving abilities and debugging skills.

* Excellent written and verbal communication; able to articulate technical concepts clearly.

* Ability to work independently and collaboratively in an agile/scrum environment.

Preferred Qualifications:

* Experience with cloud platforms such as AWS (EC2, S3, Lambda), Azure, or Google Cloud.

* Familiarity with containerization technologies (Docker, Kubernetes).

* Knowledge of continuous integration and continuous deployment (CI/CD) tools (Jenkins, GitLab CI/CD, CircleCI).

* Understanding of web security principles (OWASP Top 10, JWT, OAuth2).

* Exposure to GraphQL, , or other modern frameworks.

* Prior experience with microservices or serverless architectures.

Interested candidates can drop their cv at or can contact on the given

Contact no call or whatsapp in between 11 to 9pm )

Job Types: Full-time, Permanent

Pay: ₹25, ₹40,000.00 per month

Benefits:

• Provident Fund

Work Location: In person