Node JS Developer with Java

Data Core Systems; Kolkata District; On-site; INR 1,200,000 - 2,400,000; Full time

Job summary

Data Core Systems is seeking a Node.js Developer in Kolkata to design and build scalable backend systems using Node.js, Express.js, and Prisma ORM. The role focuses on RESTful APIs, microservices, and secure authentication.

You will collaborate with cross‑functional teams to deliver robust server‑side solutions and ensure high performance and reliability. A 3+ year track record in backend development is required.

Qualifications

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Responsibilities

• Develop, enhance, and maintain backend applications using Node.js and Express.js.
• Build and optimize RESTful APIs and microservices.
• Work extensively with Prisma ORM for database schema design, migrations, and queries.
• Ensure application performance, scalability, and security.
• Integrate external APIs and third‑party services.
• Collaborate closely with front‑end developers, QA, DevOps, and product teams.
• Troubleshoot, debug, and resolve application issues.
• Write clean, maintainable, and well‑documented code.
• Participate in code reviews and contribute to best development practices.

Skills

Node.js

Express.js

Prisma ORM

REST APIs

Microservices

JWT/OAuth

Git

Education

Bachelor's degree in Computer Science or related field

Tools

PostgreSQL

MySQL

SQL Server

Docker

GraphQL

CI/CD

Job description

Job Description: Node.js Developer (Express.js & Prisma)

Position: Node.js Developer with Java
Experience: 3+ years
Location: Kolkata
Employment Type: Full-time

Overview

We are seeking an experienced Node.js Developer with 3+ years of hands‑on experience in building backend applications using Node.js, Express.js, and Prisma ORM. The ideal candidate should have strong technical skills, a solid understanding of database design, and the ability to build scalable, high‑performance backend systems.

Key Responsibilities

• Develop, enhance, and maintain backend applications using Node.js and Express.js.
  


• Build and optimize RESTful APIs and microservices.
  


• Work extensively with Prisma ORM for database schema design, migrations, and queries.
  


• Ensure application performance, scalability, and security.
  


• Integrate external APIs and third‑party services.
  


• Collaborate closely with front‑end developers, QA, DevOps, and product teams.
  


• Troubleshoot, debug, and resolve application issues.
  


• Write clean, maintainable, and well‑documented code.
  


• Participate in code reviews and contribute to best development practices.
  

Required Skills & Qualifications

• Minimum 3+ years of experience in backend development using Node.js.
  


• Strong proficiency in Express.js.
  


• Hands‑on experience with Prisma ORM.
  


• Solid understanding of relational databases (PostgreSQL / MySQL / SQL Server).
  


• Experience with authentication and authorization (JWT, OAuth, etc.).
  


• Strong understanding of REST API design principles.
  


• Good knowledge of Git and version control.
  


• Strong debugging and problem‑solving skills.
  

Preferred Skills

• Experience with AWS, Azure, or GCP.
  


• Knowledge of Docker and containerization.
  


• Familiarity with microservices architecture.
  


• Experience working with GraphQL.
  


• Understanding of caching technologies (Redis, Memcached).
  


• Exposure to CI/CD pipelines.
  

Education

• Bachelors degree in Computer Science, Engineering, or related field (preferred but not mandatory).