Full Stack Developer — Backend Heavy

Koonei; Kolkata District; Hybrid; INR 1,015,560 - 1,216,440; Full time

Job summary

A leading tech company is seeking a Backend-Heavy Full Stack Developer to own APIs, business logic, and integrations for a large-scale enterprise software platform. The ideal candidate will have over 3 years of backend experience with a strong focus on RESTful APIs, as well as proficiency in Node.js, TypeScript, and PostgreSQL. Comfortable with frontend technologies like React when needed. This role offers a competitive salary of 1 Lakh INR/month and a hybrid work environment in Kolkata.

Qualifications

• 3+ years of backend development experience with a strong focus on APIs.
• Experience designing PostgreSQL schemas.
• Comfortable with React and building components when needed.

Responsibilities

• Build RESTful APIs using Node.js and TypeScript.
• Design and optimize database schemas.
• Integrate various third-party services and APIs.

Skills

Node.js

PostgreSQL

TypeScript

React

RESTful APIs

Integration of third-party APIs

Unit testing with Jest

Redis

Tools

NestJS

Prisma ORM

Docker

AWS

Job description

What we need: A Backend-Heavy Full Stack Developer for a large-scale enterprise Software platform. Core focus: APIs, business logic, integrations. But comfortable stepping into frontend when the team needs it.

To Apply: https://forms.gle/fzANhU4twANdfokp6

Key responsibilities:

• Build RESTful APIs using Node.js / NestJS / TypeScript
• Design and optimize PostgreSQL schemas using Prisma ORM
• Implement complex workflows, state machines, and approval flows
• Integrate payment gateways, messaging APIs, and external services
• Build background jobs with Redis + BullMQ
• When needed: build pages/components using React / Next.js
• Write tests, participate in code reviews and daily standups
• 3+ years experience, strong backend focus
• Comfortable with React / Next.js — can build admin pages, forms, tables independently
• Third-party API integration and webhook handling experience
• Database transactions and data integrity understanding
• Unit testing with Jest
• Believes in continuous learning — stays curious, picks up new tools fast, sees challenges as growth

Nice-to-have (big plus): React Native, payment integrations (Stripe/HiPay), Twilio, AWS (SES/S3/Lambda), Firebase, Docker, multi-tenant SaaS, ERP/CRM experience.

Goal of the role: Be the backbone — own APIs, business logic, and integrations end-to-end. Step into frontend when it counts. Backend specialist first, truly full stack when needed.

Budget: 1 Lakh INR/month

Location: Kolkata, India (hybrid)

Hours: Full-time