Memoji

Kshitij Chavan

Software Developer | Claude Code Certified

Resume

I'm a full stack developer with experience in building production-ready back-end services and secure integrations. I specialize in designing reliable authentication flows, real-time logging systems, and scalable web applications.

Connect
/in/kshitijchavan@KshitijMah60876/kshitij-chavan-stack

Skills

A quick overview of the technologies I work with across the stack.

Frontend

HTMLCSSJavaScriptReactReact Native

Backend

Python (FastAPI)Node.jsExpress.js

Databases

MongoDBRedisPostgreSQL

Tools & DevOps

GitWebflowJIRAPostmanDocker

About

I'm currently pursuing a Master's in Computer Application while actively building production-grade back-end services and integration platforms.

My recent work includes designing an OAuth 2.0 based HubSpot integration platform, a hardened authentication & authorization microservice, and a real-time webhook logging dashboard. I focus on robust architecture, security, and performance.

I enjoy working across the stack with tools like Node.js, Express, Next.js, FastAPI, MongoDB, Redis, and PostgreSQL, and I'm always iterating on clean, maintainable code.

Projects

CHRONOS

Production ready Chrome extension · Feb 2026

  • Architected end-to-end Chrome extension with real-time tab tracking, dual-view analytics dashboard,and domain-based time aggregation shipped production-ready MVP with 1KB memory and 50ms latency
  • Led product strategy identifying USD 1.2B market opportunity; differentiated against RescueTime/Toggl on privacy-first positioning; executed dual-distribution GTM (Web Store + GitHub) with zero CAC
  • Engineered security-hardened codebase: XSS prevention (HTML escaping), CSP Manifest V3 compliance (Chart.js bundling + event listener refactoring), error handling; 100 percent security audit pass
JavaScript (ES6+)Chart.jsChrome Extension APIs (Manifest V3

HubSpot Integration Platform

OAuth 2.0 based SaaS integration system · Dec 2025

  • Architected and deployed a secure OAuth 2.0 integration platform handling 100+ daily authentication flows with zero security vulnerabilities.
  • Optimized data synchronization using API batching, fetching 12+ HubSpot object types in under 2 seconds.
  • Designed reusable React components aligned with existing patterns, achieving 95% code consistency.
  • Implemented Redis-backed state management, popup lifecycle handling, and secure one-time credential exchange.
OAuth 2.0ReactNode.jsRedisREST APIs

AuthFlow

Production-ready Authentication & Authorization microservice · Nov 2025 – Current

  • Developed authentication microservice with JWT-based auth, email verification, and password reset workflows.
  • Implemented token blacklisting with Redis and refresh token rotation for instant logout and session security.
  • Built layered architecture with services, repositories, and controllers for maintainability and testing.
  • Integrated security features including bcrypt hashing, rate limiting, account lockout, and Joi validation.
Node.jsExpressMongoDBRedisJWTJoi

Webhook Logger

Real-time webhook monitoring & logging system · Oct 2025

  • Built real-time webhook monitoring for GitHub, Stripe, and Shopify with HMAC signature verification.
  • Developed live dashboard for payload/header inspection with JSON-based persistence for audits.
  • Deployed production-ready RESTful API with secure authentication and logging.
Node.jsExpressWebhooksHMACRender

Education

INSTITUTE OF MANAGEMENT STUDIES (IMS)

Masters in Computer Application

Maharashtra, India • Expected May 2026

CGPA: N/A

C. D. JAIN COLLEGE OF COMMERCE

Bachelor of Computer Application

Maharashtra, India • June 2024

CGPA: 7.9/10 · 6th Sem SGPA: 8.87/10

Get in Touch

Want to talk about back-end systems, integrations, or potential opportunities? Feel free to reach out and I'll get back to you as soon as possible.

Chavankshitij124@gmail.com