Backend Developer Node.JS

Backend Developer (Node.js) | On-site | New Delhi

Company: GrubPac Technologies

About GrubPac

GrubPac Technologies is redefining last-mile delivery with the world’s first smart, dual-zone temperature-controlled smart delivery box. Our technology ensures that food and pharmaceutical products are delivered at the perfect temperature—every time.

We are building systems where precision, reliability, and scalability are critical, and we’re looking for engineers who can take ownership of real-world, production-grade systems.

Role Overview

We are hiring a Backend Developer (Node.js) who can build and manage scalable, high-performance backend systems.

This is not a basic CRUD role. You will be responsible for end-to-end backend ownership—from designing APIs to deploying and managing production infrastructure.

You will work on real-world logistics systems, where performance, uptime, and efficiency directly impact operations.

Job Details

Location: On-site – Jhandewalan Office, New Delhi

Working Hours: 9:00 AM – 6:00 PM

Working Days: Monday to Friday

Contract: 1-Year Contract

Probation Period: 3 Months

Salary Range: ₹3 LPA – ₹7 LPA

What You’ll Do

Design and develop scalable backend services using Node.js

Build secure, well-structured RESTful APIs

Handle database design, optimization, and integrations

Deploy and manage applications in production environments

Configure and maintain infrastructure using:

PM2 (process management & clustering)

Nginx (reverse proxy, routing, SSL)

Load Balancers (traffic distribution & scaling)

Optimize performance using caching, queues, and rate limiting

Monitor systems and debug production issues

Collaborate closely with frontend and cross-functional teams

Core Technical SkillsBackend Development

Strong expertise in Node.js (Express / NestJS preferred)

Deep understanding of JavaScript

Solid grasp of OOP, design patterns, and clean architecture

Experience building production-level applications

Database & Caching

Experience with MongoDB / PostgreSQL / MySQL

Strong knowledge of Redis (caching, pub-sub, rate limiting)

Ability to design efficient schemas and optimized queries

API & System Design

Strong experience in RESTful API design & best practices

Knowledge of authentication (JWT, OAuth)

Understanding of scalable system design & microservices

Infrastructure & DevOps (Must-Have)

Strong experience working with Linux servers (Ubuntu preferred)

Hands-on expertise in:

PM2 – process management, clustering, monitoring

Nginx – reverse proxy, routing, SSL configuration

Load Balancing – horizontal scaling & traffic handling

Experience in deploying and managing Node.js applications in production

Understanding of CI/CD pipelines

Familiarity with Docker (preferred)

Performance & Scalability

Experience handling high-traffic systems

Strong understanding of

Caching strategies

Rate limiting

Queue systems (Bull, RabbitMQ, etc.)

Ability to identify and fix performance bottlenecks & memory leaks

Cloud & Additional Expertise

Experience with AWS / GCP / Azure

Knowledge of

Compute services (EC2 or equivalent)

Storage systems (S3 or equivalent)

Load balancers

Familiarity with logging, monitoring, and alerting tools

What We’re Looking For

Someone who can own systems end-to-end

Strong problem-solving and debugging skills

Experience working on live production systems A mindset focused on performance, reliability, and scalability

Why Join GrubPac

Work on real-world, high-impact logistics technology

Build systems that operate at scale in production

Fast learning environment

Opportunity to shape core backend architecture