MERN developer

About Gadget Guruz

Gadget Guruz is a cutting-edge electronics startup that focuses on creating an ecosystem for sustainable and innovative technology solutions. We're passionate about leveraging tech to make life easier and greener. Join us in redefining the future of electronics!

Role Overview

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 Node.js, Express.js, 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

• 3+ years of backend experience with the MERN stack (Node.js, Express.js, 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: Node.js/Express.js 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.
  

How to Apply

hr@gadgetguruz.com

We look forward to building the future of electronics repair—and making India greener—together!