Job Description

###

Senior Backend Engineer (MERN Stack)

Location:

Sector 67, Gurgaon

Experience:

3+ years

Type:

Full-time###

About Fairdeal.Market

Fairdeal.Market is a rapidly growing B2B quick commerce company offering a wide range of products with delivery times as short as 20 minutes. Our mission is to ensure that every shopping bag worldwide can be filled efficiently and sustainably.###

Role Summary

As a

Senior Backend Engineer

, you will be responsible for designing and implementing robust, scalable, and high-performance backend services. You will contribute to architectural decisions, solve complex technical problems, and mentor junior developers across the stack, with a strong emphasis on

Node.js, Express.js, MongoDB

, and backend architecture. Familiarity with

Docker

and

CI/CD pipelines

is plus.###

Key Responsibilities

Architect and implement backend services and REST APIs using Node.js and Express.js.

Design scalable data models and work with MongoDB and NoSQL databases efficiently.

Solve complex problems related to performance, scalability, and data integrity.

Ensure code quality through test coverage, peer reviews, and automated workflows.

Collaborate with frontend developers, product managers, and DevOps for feature implementation.

Lead the technical architecture of new features and services.

Manage background jobs, queues, event-driven architecture.

Ensure application security and data protection protocols.

Optimize application for performance, scalability, and maintainability.

Mentor and guide junior engineers, ensuring best coding practices are followed.

Participate in sprint planning, technical discussions, and release management.###

Qualifications

Education:

B.Tech in Computer Science, Information Technology, or related field.

3+ years of hands-on experience with the MERN stack, especially in backend development.

Proficiency in

JavaScript

and

Node.js

, with deep understanding of

Express.js

.

Strong database knowledge, especially

MongoDB

, including schema design and optimization.

Experience in

architecting scalable backend systems

.

Familiarity with

Docker

, containerization concepts, and

CI/CD

pipelines (e.g., GitHub Actions, Jenkins, GitLab CI).

Understanding of REST APIs, microservices, and API documentation (Swagger/OpenAPI).

Familiarity with Redis, message queues (RabbitMQ, Kafka) is a plus.

Strong problem-solving and analytical skills.

Excellent written and verbal communication.###

Good to Have

Exposure to

cloud platforms

like AWS (EC2, S3, Lambda).

Experience with monitoring/logging tools (ELK Stack, Prometheus, Grafana).

Knowledge of

GraphQL

,

WebSockets

, or

gRPC

.

Contribution to open-source or public code repositories.