karcosmic
rewant sharma
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.
01import jwt from "jsonwebtoken"
02import bcrypt from "bcryptjs"
03export const loginUser = async
04validateCredentials()
05generateAccessToken()
06setSecureCookies()
07// RBAC Middleware
08authorize(["admin", "user"])
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.
Project Launcher
Secure backend systems and modern web applications.

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.
Expertise
Full stack development with a strong backend and security focus.
Frontend
Building responsive and modern interfaces with clean user experience.
Backend
Developing scalable APIs, authentication systems, and server architecture.
Security
Implementing secure development practices and backend protection systems.
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.