MERN Developer

2 weeks ago


Okhla, Delhi, India Gadget Guruz Pvt Ltd Full time ₹ 7,20,000 - ₹ 14,40,000 per year

As a MERN Developer, you will be a full-time, on-site member of our Delhi NCR team, owning the design, implementation and maintenance of our core server-side systems. You'll work in a fast-paced, growth-stage startup environment—with blurred lines between Dev, Ops and Product—to build scalable, secure and high-performance APIs that power both web and mobile clients.

Key Responsibilities

Architecture & Development

  • Design, develop, and maintain backend applications using , , and MongoDB.
  • Build and document RESTful/GraphQL APIs for web (React) and mobile (Flutter) clients.
  • Follow clean-code and OOP principles in all backend implementations.

Database & Performance

  • Model and optimize MongoDB schemas and manage migrations.
  • Perform query optimization and debugging for performance tuning.
  • Implement caching, job queues, and conduct load testing as needed.

Cloud Infrastructure

  • Deploy, monitor, and maintain backend services on cloud platforms (AWS, Heroku, Vercel).
  • Define Infrastructure-as-Code with Docker or serverless tools.

AI/ML & Real-Time Features

  • Build real-time chat/notification services using Socket.IO or WebSockets.
  • Collaborate with data teams to integrate AI/ML models via inference APIs.
  • Integrate third-party APIs, payment gateways, or webhooks.

Quality & Security

  • Enforce web-security best practices (OWASP, input validation, encryption)
  • Set up and maintain CI/CD pipelines, perform unit/integration tests (Jest, Mocha, etc.).
  • Maintain version control workflows using Git.

Collaboration & Mentorship

  • Work closely with frontend (React) and mobile (Flutter) teams for API contract design.
  • Participate in code reviews, documentation, and knowledge-sharing sessions.
  • Mentor junior engineers and drive code reviews, documentation and knowledge sharing

MUST have qualification

  • 4+ years of backend experience with the MERN stack , , MongoDB, React exposure desirable).
  • Bachelor's degree in Computer Science, Software Engineering or a related field
  • Proficiency in JavaScript (ES6+), OOP, asynchronous programming, and API construction.
  • Hands-on experience with MongoDB and schema design.
  • Proven track record building and securing RESTful or GraphQL APIs
  • Hands-on AWS experience (EC2, RDS, S3, Lambda) and IaC (Terraform/CloudFormation)
  • Solid understanding of web security best practices (OWASP Top 10, HTTPS, CSRF/XSS mitigation)
  • Experience with version control workflows (Git) and setting up CI/CD
  • Demonstrated ability to thrive in a growth-stage startup environment

Preferred Skills

  • Real-time frameworks: with Socket.IO or Pusher.
  • Containerization (Docker) and orchestration (Kubernetes)
  • Exposure to AWS, Vercel, Heroku, or similar platforms for cloud deployment
  • Experience with integrating third-party APIs.
  • NoSQL databases (MongoDB, DynamoDB)
  • Serverless architectures (AWS Lambda, API Gateway)
  • AI/ML model deployment and inference pipelines
  • Prior work in electronics, logistics, or customer service support domains.

Job Type: Full-time

Pay: From ₹60,000.00 per month

Benefits:

  • Paid sick time
  • Work from home

Work Location: In person



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