Karnojit saha

Software Engineer

Sheoraphuli, West Bengal, IndiaSoftware Development
2roles
20skills
2education

About

Full Stack Software Developer with 4 years of experience building scalable, high-performance web applications and enterprise solutions.

Experience

Software Engineer

Pixel Consultancy

2024-2026

Developed and maintained scalable web applications using Node.js, focusing on high-performance backend logic and system reliability. Built and optimized MongoDB and SQL database solutions, created and managed RESTful APIs, and designed scalable systems with efficient database schemas and backend optimizations.

Full Stack Developer

Infymax Solutions Pvt. Ltd.

2022-2024

Developed and maintained web-based admin panels using Node.js and Angular; managed SQL databases; built administrative interfaces; and applied web development practices to troubleshoot issues and maintain frontend and backend stability across several client projects.

Education

Burdwan University

Bachelor of Computer Application

2016-2019

Percentage: 51%

Calcutta Institute of Technology

Master of Computer Applications

2019-2022

CGPA: 8.93

Skills

MySQLNode.jsAngularMongoDBExpress.jsHTMLCSSBootstrapJavaScriptWebSocketJWTRedisDockerGitGitHubMicroservicesTypeScriptCI/CDAWSREST API

Projects

Travel & Booking Platform (Altra Booking)

Developed a scalable multi-transport booking platform using Node.js, Express.js, and MongoDB for train, bus, and flight reservations. Designed RESTful APIs for search, booking, cancellation, and payment workflows; implemented real-time seat availability, dynamic fare calculation, JWT authentication, MongoDB query optimization, Redis caching, concurrent booking support, and Vercel deployment. Included a browser-based puzzle game feature.

AI Prescription & Discharge Summary Platform

Developed and maintained an AI-powered healthcare platform using Node.js, Express.js, MongoDB, Firebase, and Vercel. Integrated OpenAI, Gemini, and Claude APIs to process handwritten prescriptions and discharge documents. Built APIs for document scanning, structured data storage, and AI-generated summaries, and deployed backend services on Vercel.

IoT Recycling Machine Management Platform

Developed and maintained an IoT-enabled recycling platform connecting smart recycling machines with a centralized web application through webhooks. Implemented machine subscriptions, PayPal payment integration, machine status tracking, role-based access control, and webhook-driven collection workflows. Managed roles for machine owners, renters, collectors, and recyclers.

HR Management System

Developed and maintained a comprehensive HR platform using Angular, Node.js, Express.js, MySQL, JWT, and AWS. Built modules for employee, attendance, leave, payroll, sales, and performance management. Implemented secure authentication, role-based access control, automated workflows, reporting, and AWS deployment.

Diagnostic & Healthcare Management System

Developed and maintained a healthcare management platform using Angular, Node.js, Express.js, MySQL, JWT, and AWS. Built patient, doctor, appointment, laboratory test, and medical report modules. Implemented secure authentication, role-based access control, diagnostic test booking, consultation workflows, dashboards, REST APIs, reporting, analytics, and AWS deployment.

E-Commerce & Distribution Management System

Developed an end-to-end e-commerce and distribution platform using Angular, Node.js, Express.js, MySQL, JWT, REST APIs, and AWS. Built inventory, product distribution, dealer, partner, and customer management modules. Implemented product sales, coupon management, cashback programs, payment tracking, settlement workflows, secure REST APIs, role-based access control, centralized admin dashboards, and AWS deployment.

E-Waste Lifecycle & Recycling Management System

Developed an e-waste management platform using Node.js, Express.js, MongoDB, REST APIs, webhooks, and Vercel. Managed collection, transportation, recycling, inventory, and resale workflows. Implemented webhooks for real-time inventory and stock updates and maintained REST APIs and backend services on Vercel.