Professional Journey

Work & Experience

A timeline of my professional journey and the systems I've built.

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Career Timeline

Cozeva (Applied Research Works Pvt. Ltd.)

HybridKolkata, India

Software Development Engineer II

Current

February 2026Present

Software Development Engineer I

April 2025January 2026

JavaScriptReact.jsNext.jsNode.jsExpress.jsMongoDBMySQLOpenAI

Altor Smart Mobility (Praesus Technologies Pvt. Ltd.)

HybridKolkata, India

Software Engineer - Associate

September 2024April 2025

TypeScriptReact.jsNext.jsZustandTanStack QueryFirebaseTailwind CSSPostgreSQLSocket.ioGoogle MapsNode.jsExpress.js

Aeonix Research and Innovations LLP

OnsiteKolkata, India

MERN Stack Development Intern

August 2023February 2024

TypeScriptReact.jsMaterial UIFirebaseChart.jsNode.jsExpress.jsMongoDB

Selected Works

A curated showcase of systems, tools, and features — designed and shipped.

17
01
Browser Extension

EHR Data Extraction Engine

Enhanced a browser extension Rule Engine for extracting patient demographics from EHR systems by adding patient list page support, enabling scalable DOM-based data extraction.

JavaScriptDOMBrowser Extension
02
Developer Tooling

Automated DOM Trainer

Building an automated tool for a browser extension that generates extraction rules via XPath from user-selected fields (name, DOB, gender), drastically reducing manual configuration effort.

XPathAutomationJavaScript
03
System Design

EHR-Driven Architecture Migration

Redesigned a browser overlay by migrating from static URL matching to a scalable EHR-driven architecture, significantly improving patient record retrieval reliability.

ArchitectureReact.jsScalability
04
AI / Agentic

Clinical Validation Agent

Built a Clinical Validation Agent to compare patient histories across flat files and XML, using a pipeline to convert data into TOON format and process via OpenAI Batch API.

OpenAINode.jsData Pipeline
05
AI / Agentic

Patient History Summarizer Agent

Developed an AI agent that generates structured clinical summaries from patient history data, enabling faster and more accurate medical review workflows.

OpenAILLMHealthcare
06
Backend

Dynamic Route Generation Engine

Implemented a dynamic route generation engine that enables automatic endpoint creation for new AI agents, improving developer velocity and system scalability.

Node.jsExpress.jsArchitecture
07
AI / Agentic

MCP Server for Secure Data Retrieval

Built an MCP server using MCP SDK for secure, tool-based patient data retrieval within AI agents.

MCPSDKSecurity
08
Frontend

Agentic AI Platform Components

Developed reusable Next.js components for an internal platform to build and deploy AI agents and chatbots.

Next.jsReact.jsComponent Library
09
Full Stack

Inventory SaaS Platform

Built the complete frontend of an inventory management SaaS from scratch using React.js and TailwindCSS.

React.jsTailwindCSSSaaS
10
Hardware Integration

QR Code Scanning System

Developed a QR code scanning system integrated with barcode scanner guns to significantly improve warehouse operational efficiency.

HardwareJavaScriptEfficiency
11
Backend

Real-Time MQTT Streaming Service

Built a Node.js (Express) service consuming MQTT data and streaming real-time updates via Socket.io, integrated with Google Maps for live vehicle tracking.

Node.jsMQTTSocket.ioGoogle Maps
12
Developer Tooling

API Interceptor System

Designed an Axios interceptor system that improved API scalability and reduced repetitive boilerplate logic across the frontend.

AxiosArchitectureDX
13
Performance

SWR Caching Layer

Implemented SWR caching with TanStack Query, improving application load times by 25%.

TanStack QueryCachingPerformance
14
Product

Gamification Engine

Gamified an internal tool with achievement systems and engagement mechanics, increasing user engagement by 63%.

GamificationUXEngagement
15
Full Stack

Health Insurance Enrollment Portal

Contributed to a Health Insurance Enrollment Portal with an admin panel for a US-based client.

React.jsNode.jsMongoDB
16
Frontend

Analytics Dashboard

Built a responsive, event-driven dashboard using React and Material UI with interactive charts and maps for business insights.

React.jsMaterial UIChart.js
17
Frontend

Marketing Website with Analytics

Developed a marketing website using React with full Google Analytics integration for tracking user journeys.

React.jsGoogle AnalyticsSEO