MD Rohan

MD Rohan

Offensive Security Researcher | Bug Bounty Hunter | Digital Investigator

Cybersecurity professional with a strong background in offensive security, penetration testing, vulnerability research, network administration, Linux & Windows systems administration, reverse engineering, and online investigations. Passionate about securing modern infrastructure and helping organizations identify and eliminate security weaknesses before attackers exploit them.

About Me

I am a cybersecurity researcher and penetration tester with expertise in offensive security operations, bug bounty hunting, digital investigations, vulnerability assessment, and infrastructure security. I have experience performing network, web application, wireless, and red team security assessments.

In addition to security research, I am also a fluent programmer and experienced system administrator with hands-on expertise in Linux and Windows environments, network administration, server hardening, and automation.

Core Expertise

Offensive Security

Penetration Testing, Red Teaming, Exploitation, Vulnerability Discovery, Security Research

Application Security

Web Application Security, API Security Testing, Authentication Bypass, Logic Flaws

Programming

Python, JavaScript, Bash, Automation Scripting, Secure Coding & Tool Development

System Administration

Linux Administration, Windows Administration, Server Hardening & Security Monitoring

Network Security

Network Administration, Firewall Management, Traffic Analysis, VPN & Infrastructure Security

Digital Investigation

OSINT, Fraud Investigation, Background Checks, Threat Intelligence & Online Investigation

Reverse Engineering

Malware Analysis, Binary Analysis, Static & Dynamic Reverse Engineering

Cloud & DevSecOps

Infrastructure Security, Security Automation, CI/CD Security & Secure Deployments

Professional Experience

Penetration Tester — BYTIUM (Remote)

September 2024 — Present

Engage in a variety of penetration testing assessments including internal & external network testing, web application security testing, wireless assessments, red & purple team operations, physical security, and social engineering engagements.

Bug Bounty Hunter — Bugcrowd (Freelance)

February 2026 — Present

Actively participating in bug bounty programs and vulnerability disclosure initiatives. Reported 18 security vulnerabilities within the first few months of active bug bounty hunting and earned recognition points through Bugcrowd programs.

Education

Northern University of Business and Technology, Khulna

BSc in Computer Science and Engineering

GPA: 3.26 / 4.00