Job Description

MERN Stack Developer

Job Summary:

We are looking for a

Full Stack Developer (MERN)

with hands-on experience in building

highly scalable, performance-driven applications

. The ideal candidate should have a deep understanding of both front-end and back-end development, microservices, and database optimization for large-scale systems. You will be responsible for designing, developing, and maintaining applications that can handle

high concurrency (1,000+ active users)

while ensuring performance, reliability, and scalability.

This role involves working closely with cross-functional teams -- including product managers, designers, and DevOps engineers -- to deliver cutting-edge, enterprise-grade solutions.

Roles & Responsibilities:

Design and develop

scalable and distributed web applications

using the MERN stack (MongoDB, Express.js, React/Next.js, Node.js). Build and optimize

RESTful APIs

for high-performance, concurrent environments. Architect and manage

MongoDB databases

, ensuring high availability, efficient query performance, and scalability. Implement

queueing systems (e.g., BullMQ, RabbitMQ, Kafka, or Redis Queues)

for background jobs and asynchronous processing. Optimize server and client performance to support

real-time data updates

and high concurrent user loads. Collaborate with DevOps to improve

deployment pipelines, containerization (Docker), and cloud scalability

. Conduct thorough testing, profiling, and debugging to identify performance bottlenecks and optimize both code and infrastructure. Participate in

code reviews, architecture discussions, and sprint planning

to ensure technical excellence and scalability across all layers.

Qualification / Requirements:

Bachelor's degree

in Computer Science, Engineering, or related field (or equivalent experience).

1 + years of hands-on experience

in full-stack development using the

MERN stack

. Proven experience working on

applications supporting 1,000+ concurrent users

or large-scale distributed systems.

Strong expertise in:

Node.js

(asynchronous programming, clustering, performance optimization)

Next.js & React.js

(SSR, CSR, and dynamic rendering)

MongoDB

(aggregation pipelines, indexing, schema design for scalability) Practical experience with

message queues

(BullMQ, RabbitMQ, Kafka, or Redis Streams). Familiarity with

caching mechanisms

(Redis, Memcached) to optimize performance. Experience with

Docker

and microservices-based architectures is a plus. Good understanding of

API design

,

authentication mechanisms (JWT, OAuth)

, and

security best practices

. Experience working in

Agile environments

and using

Git-based version control

.

Nice to Have:

Exposure to

serverless computing (AWS Lambda)

. Experience with

monitoring tools

(New Relic, Datadog, ELK Stack). Knowledge of

CI/CD pipelines

and automated deployment workflows. Experience in

real-time communication

(WebSockets, Socket.io).
Job Type: Full-time

Pay: ₹10,000.00 - ₹35,000.00 per month

Benefits:

Flexible schedule Leave encashment Paid time off Provident Fund Work from home
Work Location: In person