Vimal Kumar R | Cyber Security & Python Developer

Hi, I'm Vimal Kumar

A passionate cybersecurity enthusiast and Computer Science graduate based in Chennai, India. With hands-on experience in penetration testing, vulnerability assessments, and threat analysis, I specialize in identifying and mitigating security risks across web applications and networks. Currently working as an Independent Security Researcher and Bug Bounty Hunter, I actively participate on platforms like HackerOne and Bugcrowd, where I’ve uncovered critical issues such as logic flaws, broken authentication, and XSS vulnerabilities. My technical toolkit includes Python scripting, Metasploit, Burp Suite, Nmap, and Splunk. I'm continuously learning and currently pursuing CompTIA Security+ certification, aiming to grow in roles like SOC Analyst or Cybersecurity Associate. My mission is to contribute to safer digital environments through ethical hacking, proactive defense strategies, and teamwork

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Experience

Independent Security Researcher & Bug Bounty Hunter

Self-Employed 2023 - Present | Remote

Actively participate in bug bounty programs on platforms like HackerOne and Bugcrowd, identifying and reporting critical vulnerabilities such as Logic Flaws, Broken Authentication, and Cross-Site Scripting (XSS).
Conducted vulnerability assessments and penetration testing on web applications and APIs using tools like Burp Suite, Nmap, and Metasploit.
Stay updated with the latest cybersecurity trends, vulnerabilities, and attack vectors through continuous self-learning and research.

My Skills

Programming Languages

Python (Scripting, Automation) 85%

Web Technologies

HTML, CSS 80%

Databases

SQL 65%

Networking

TCP/IP, DNS, Ports, Firewalls 75%

Security Tools

Metasploit 80%

Sqlmap 75%

Burp Suite 80%

Wireshark 75%

Nmap, Zenmap 70%

SIEM & Analysis

Splunk (basic usage and analysis) 40%

Operating Systems

Windows 80%

Linux (Ubuntu/Kali) 80%

Virtualization & Cloud

VirtualBox, VMware 70%

AWS (EC2, S3, Route53) 40%

Version Control

Git, GitHub 75%

Projects

Kali Linux Attack Simulation • 2023

Demonstrated phishing, hash cracking, and port scans using Metasploit and Nmap. This project showcases practical offensive security techniques and how attackers exploit common vulnerabilities in a controlled lab environment.

Kali Linux Metasploit Nmap

Python Port Scanner • 2024

Scripted a port scanning tool that logs TCP port states. This tool helps identify open and closed ports on target systems, aiding in vulnerability assessments and network mapping.

Python Networking

DDoS Simulator • 2024

Created a stress test tool simulating HTTP flood attacks to demonstrate basic threat generation and detection. Useful for understanding denial-of-service concepts and defensive monitoring.

Python Security

Socket Tool Suite • 2025

Implemented a client-server architecture in Python demonstrating TCP/UDP protocols and multi-threading. This suite includes chat and file transfer tools, highlighting core networking and concurrency concepts.

Python Socket Programming Multi-threading

Education

M.Sc Cyber Forensics

Madras University

2023 - Present

M.Sc Cyber Forensics and Information Security at University of Madras. Developed a strong foundation in technical concepts, especially networking. Explored theoretical and practical aspects using tools like Cisco Packet Tracer, gaining experience in network configuration, troubleshooting, and management. Coursework in Networking Concepts deepened understanding of network architecture, protocols, and security.

Bachelor of Computer Applications

DR MGR Educational Institute

2020 - 2023

During my BCA, I built a strong foundation in computer programming and core IT concepts.As part of my academic work, I completed a project titled "Kali Linux Attack Simulation", where I designed and executed a simulated cyber attack environment using tools like Metasploit and Nmap.The project showcased key penetration testing techniques such as vulnerability scanning, exploitation, and network reconnaissance, deepening my understanding of practical cybersecurity principles.

Certifications

CompTIA Security+

In Progress

LAHP Course

In Progress

Python

Completed