karcosmic

rewant sharma

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MERN STACK • BACKEND ENGINEERING • SECURITY

Computer Science Engineering student focused on scalable backend systems, authentication workflows, API security, and production-ready MERN stack applications with clean architecture.

auth-system.ts

01import jwt from "jsonwebtoken"

02import bcrypt from "bcryptjs"

03export const loginUser = async

04validateCredentials()

05generateAccessToken()

06setSecureCookies()

07// RBAC Middleware

08authorize(["admin", "user"])

Node.jsExpressJWTMongoDBSecurity

About

Focused on building scalable backend systems, secure APIs, and modern full stack applications.

I’m a Computer Science Engineering student with a strong interest in backend engineering, authentication systems, API security, and scalable application architecture.

My development workflow mainly revolves around the MERN stack, where I enjoy building production-ready applications with clean structure, optimized performance, and secure backend infrastructure.

Alongside full stack development, I actively explore cybersecurity concepts including OWASP practices, authentication workflows, access control systems, Linux environments, and web application security.

I enjoy turning complex ideas into clean and functional digital products that balance usability, performance, and security.

Backend Infrastructure

Building secure backend systems with modern authentication and API security practices.

terminal
$ npm run secure-auth
✓ JWT Authentication Enabled
✓ RBAC Middleware Active
✓ Rate Limiting Applied
✓ MongoDB Connected
✓ API Security Headers Enabled
✓ Input Validation Active

Project Launcher

Secure backend systems and modern web applications.

project-launcher
Learn Hub

Launch Successful

Learn Hub

Semester-based academic learning platform with structured navigation and modern UI architecture.

Currently Exploring

Continuously learning backend engineering and modern security practices.

Docker & Containers
Linux Hardening
API Security
System Design
Redis Caching
Authentication Architecture

Expertise

Full stack development with a strong backend and security focus.

Frontend

Building responsive and modern interfaces with clean user experience.

ReactNext.jsTypeScriptTailwind CSSFramer Motion

Backend

Developing scalable APIs, authentication systems, and server architecture.

Node.jsExpress.jsMongoDBREST APIsRedis

Security

Implementing secure development practices and backend protection systems.

JWTRBACOWASPRate LimitingInput Validation

Experience

Learning, building, and continuously improving through real-world development.

2024 — Present

MERN Stack Development

Building full stack applications with focus on backend architecture, API development, authentication systems, and scalable web application workflows.

2024 — Present

Cybersecurity Learning

Exploring web application security, OWASP principles, authentication security, Linux systems, access control, and secure backend infrastructure.

2023 — Present

Computer Science Engineering

Studying core computer science concepts including data structures, networking, operating systems, database systems, and software engineering.

Contact

Interested in backend engineering, secure systems, or collaboration.

Open to internships, freelance opportunities, and projects focused on backend development, cybersecurity, and scalable full stack applications.