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aryankumarx/README.md

Aryan Kumar

Cybersecurity Student · Aspiring Application Security Engineer

I build secure applications, analyze vulnerable systems, and work at the intersection of backend engineering and cybersecurity.

About

  • Focused on Application Security, web security, secure software design, and DevSecOps
  • Studying computer networks, network security, and offensive security fundamentals
  • Use backend development to build, test, and harden security-focused applications
  • Certified — Google Cybersecurity Professional Certificate

Current Focus

  • Hardening vulnerable web applications using secure coding practices
  • Writing security lab writeups and developer-focused vulnerability analyses
  • Building AI-assisted tools with strong backend and security fundamentals

Tech Stack & Tools

Languages & Frameworks

JS Node.js Express Python C C++ HTML CSS

Databases

MongoDB MySQL PostgreSQL

Tools, Platforms & OS

npm Git GitHub Docker Postman VS Code Linux Windows Kali

Security

Burp Suite Wireshark


Projects

Replyfy — AI Reply Assistant for Android

React Native Kotlin Node.js Express Gemini 2.5 Flash-Lite

Floating AI reply assistant for WhatsApp, Telegram & SMS — contextual responses without app switching. Security hardened with rate limiting, secret isolation, and sensitive-data filtering.

Vulnerable-to-Secure-App

Node.js Express OWASP Top 10

Built intentionally vulnerable functionality, exploited it, then remediated it. SQL Injection, XSS, unsafe sessions — broken and fixed end to end.

GitFixAI — Core Collaborator

Python FastAPI React WebSocket Supabase

Autonomous AI code-healing platform. My work: OAuth + GitHub integration, rate limiting, and production security headers (XSS, clickjacking, HSTS).

ThreadLine — Hackathon · Collaborator

Next.js D3.js Playwright Whoiser

Privacy-focused OSINT platform. My work: domain recon (WHOIS, DNS, SSL), breach lookup, and Playwright-based recon workflows.


Connect with Me

LinkedIn GitHub Gmail

Pinned Loading

  1. security-writeups security-writeups Public

    i created this repository to: document my learning journey and sharing my knowledge

    1

  2. replyfy replyfy Public

    AI Smart Replies for WhatsApp, Telegram, SMS | Floating bubble | Gemini 2.5 Flash-Lite

    Kotlin 8

  3. Vulnerable-to-Secure-App Vulnerable-to-Secure-App Public

    JavaScript 1

  4. AryanSingh64/ThreadLine AryanSingh64/ThreadLine Public

    JavaScript 2 1

  5. AryanSingh64/GItFIxAI AryanSingh64/GItFIxAI Public

    GitFixAI is an autonomous code analysis agent that detects issues across Python, JavaScript, TypeScript, and Go codebases. It uses AI to fix bugs, runs tests, and creates Pull Requests automaticall…

    JavaScript 3 1