Back End Developer

Harij Softech Pvt. Ltd.

Requirement:

Profile: Backend Developer (Nodejs & Nestjs)

Experience Required: 1-3 Years

Work Location: Gurgaon

• Translate business requirements and use-cases into

  fully functional backend applications

  using Node.js and NestJS.
• Design, develop, and maintain

  RESTful APIs, microservices, and server-side logic

  .
• Collaborate with front-end developers to integrate user-facing elements with server-side logic.
• Ensure the

  performance, quality, and responsiveness

  of backend services.
• Review, test, and verify code for adherence to coding standards, performance benchmarks, and security best practices.
• Identify performance bottlenecks, bugs, and technical issues, and implement effective solutions.
• Maintain code quality, structure, and organization through

  documentation and version control

  .
• Implement authentication, authorization, and security protocols for web applications.
• Work on database design, optimization, and management using relational (PostgreSQL/MySQL) or NoSQL databases (MongoDB).
  

Technical Requirements:

• Strong experience with Node.js

  and

  NestJS framework

  for building scalable backend services.
• Hands-on experience with

  Express.js

  and

  MongoDB

  .
• Knowledge of

  TypeScript

  and modern JavaScript (ES6+).
• Experience in

  RESTful API and microservices development

  .
• Familiarity with

  JWT, OAuth2, and other authentication/authorization mechanisms

  .
• Proficiency in

  database design, queries, and optimization

  (MongoDB, PostgreSQL, MySQL).
• Understanding of

  caching strategies, message queues, and background jobs

  (Redis, RabbitMQ, etc.).
• Experience in

  version control tools

  such as Git, GitHub, or Bitbucket.
• Understanding of

  unit testing, integration testing, and automated testing frameworks

  .
• Experience in

  cloud deployment, CI/CD pipelines, and containerization

  (Docker, Kubernetes) is a plus.
• Knowledge of

  API documentation tools

  like Swagger or Postman.
• Experience with

  third-party API integrations

  , including payment gateways, social login, or messaging services.
• Knowledge of

  WebSockets, WebRTC, or real-time communication

  is an advantage.
• Familiarity with

  serverless architecture

  or

  PWA backend support

  is a plus.