Backend developer

2 weeks ago


Andheri West Mumbai Maharashtra, India Kairosoft AI Solutions Ltd. (Volkai) Full time ₹ 30,000 - ₹ 60,000 per year

Job description:

Company: Kairosoft AI Solutions Limited (Volkai)

Location: Okhla Phase I, Delhi.

Experience: 2 Years plus experience required

Work Days: Monday to Saturday (Sunday Fix Off)

Work Hours & Day: 10:00 Am to 7:00 Pm

Note: This is a full-time, on-site position. No WFH / No Remote / No Hybrid.

About Kairosoft AI Solutions Limited.(Volkai):

Kairosoft AI Solutions Limited (Volkai) is a forward-thinking tech company focused on AI-driven solutions for businesses. We help organizations transform through intelligent automation, data-driven insights, and cutting edge technologies.

Role Overview

We are looking for a Backend MERN Stack Developer who specializes in building scalable, high-performance, and secure backend systems using , , and MongoDB. The ideal candidate should have deep backend knowledge and experience integrating APIs, managing databases, and deploying production-ready systems.

What You'll Do

  • Develop and maintain backend services using and
  • Design and manage databases using MongoDB (and optionally MySQL/PostgreSQL)
  • Build, integrate, and consume RESTful APIs (GraphQL is a bonus)
  • Implement authentication and security (OAuth, JWT, RBAC)
  • Optimize backend performance and troubleshoot system issues
  • Work closely with frontend developers for seamless integration
  • Deploy applications via CI/CD, Docker, and cloud platforms like AWS or Azure
  • Write unit and integration tests using Jest, Mocha, etc.

Required Technical Skills

Languages & Frameworks:

  • JavaScript (ES6+), , (or )
  • Deep understanding of async programming, event loop, and modular code
  • Databases:
  • MongoDB (primary), experience with PostgreSQL, MySQL, or Redis is a plus

  • ORM tools like Mongoose or Sequelize

Security:DevOps & Deployment:Real-Time & Messaging:Bonus (Nice to Have)

  • JWT, OAuth, session handling, RBAC
  • Prevention of common vulnerabilities (XSS, CSRF, SQL injection)
  • Experience with Docker, CI/CD pipelines
  • Deployment to AWS, Azure, DigitalOcean, or Heroku
  • WebSockets / Socket.IO
  • Message queues like Kafka, RabbitMQ, AWS SQS
  • TypeScript
  • Serverless experience (AWS Lambda, Google Cloud Functions)
  • Swagger/Postman for API documentation
  • Familiarity with NoSQL databases like DynamoDB or CouchDB
  • Basic understanding of (for integration purposes)

Job Types: Full-time, Permanent

Pay: ₹30, ₹60,000.00 per year

Benefits:

  • Cell phone reimbursement
  • Paid time off
  • Provident Fund

Work Location: In person


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