● Open to Work

KAUSTUBH PAWAR

Full Stack Developer (MERN)
Nashik, Maharashtra, India

About Me

Full Stack Developer (MERN) with production internship experience owning features end-to-end — from schema design and API architecture through frontend integration. Comfortable reasoning through system trade-offs: chose MongoDB sessions for ACID-compliant balance updates under concurrent writes, and idempotency keys to eliminate duplicate-charge risk on payment endpoints.

Skills & Technologies

REST API designrole-based access control (RBAC)ACID-compliant transaction handlingidempotent API designasync job queuesschema normalizationNode.jsExpress.jsJWT AuthenticationSocket.ioAsync/AwaitReact.jsReduxContext APITailwind CSSHTML5CSS3BootstrapAxiosMongoDB (Mongoose)MySQLPostgreSQLJavaScript (ES6+)TypeScriptPythonSQLGitGitHubPostmanVS CodenpmAWS EC2/S3NetlifyVercel

Work Experience

Software Developer Intern

Sumago Infotech Pvt. Ltd
Aug 2025May 2026

Engineered and maintained 15+ RESTful API endpoints using Node.js, Express.js, and MongoDB, implementing full CRUD operations. Architected normalized MongoDB schemas and integrated REST APIs into React.js components. Implemented JWT-based authentication and built responsive React.js pages with real-time API integration.

Projects

Scalable Payout / Payment Processing Engine

Architected a full-stack payment processing engine featuring real-time transaction tracking and ACID-compliant balance updates. Engineered an async job queue for payout processing with configurable retry logic for failed transactions.

React.jsNode.jsExpress.jsMongoDB

Video Upload, Sensitivity Processing & Streaming App

Built a full-featured video platform enabling user registration, video upload, adaptive streaming, and real-time upload-status updates. Architected an admin content-moderation panel enforcing a pre-approval workflow.

Node.jsExpress.jsReact.jsMongoDB

DSA-CRM Loan Management System

Developed a full-stack loan management system with role-based dashboards and a multi-stage loan pipeline. Implemented automated email notifications and a full audit log for compliance tracking.

React.jsNode.jsExpress.jsMongoDB

Resume & Job Match Analyzer

Engineered a Python-based resume screening tool using TF-IDF vectorization and cosine similarity to match candidate resumes against job descriptions. Supported batch processing of 100+ resumes per run.

Python

Education

M.Sc. Computer Science

Computer Science

Savitribai Phule Pune University2024 - 2026

B.Sc. Computer Science

Computer Science

Savitribai Phule Pune University2021 - 2024
KAUSTUBH PAWAR - Full Stack Developer (MERN) | HiringAnt