Abdur Rahman Nahid

Penetration Tester | Web Application Security

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About Me

I'm a penetration tester specializing in web application security and vulnerability assessment. Currently enrolled in the Cybersecurity and Ethical Hacking Career Track at Ostad, dedicated to mastering penetration testing methodologies and offensive security techniques.

My journey involves hands-on experience with CTF challenges, security labs, and real-world projects. I focus on identifying security weaknesses and providing actionable recommendations to strengthen organizational defenses.

Current Focus

Penetration testing, web application security, vulnerability assessment

Training

Cybersecurity & Ethical Hacking Career Track at Ostad

Tools & Tech

Burp Suite, Metasploit, Nmap, Kali Linux, Wireshark

Location

Dhaka, Bangladesh

Skills & Expertise

Penetration Testing

  • Web Application Testing
  • Network Security Assessment
  • Vulnerability Scanning
  • Security Auditing

Security Tools

  • Burp Suite
  • Metasploit Framework
  • Nmap
  • Wireshark
  • SQLMap
  • Nikto

Web Security

  • OWASP Top 10
  • SQL Injection
  • Cross-Site Scripting (XSS)
  • CSRF
  • Authentication Bypass

Operating Systems

  • Kali Linux
  • Parrot OS
  • Windows
  • Linux Administration

Reporting

  • Vulnerability Documentation
  • Risk Assessment
  • Technical Writing

Scripting

  • Python Scripting
  • Bash Scripting

Experience

Apprentice - Cybersecurity & Ethical Hacking

Ostad

November 2025 - Present | Remote

  • Hands-on ethical hacking labs and practical exercises
  • Participating in CTF challenges and security competitions
  • Conducting vulnerability assessments on test environments
  • Security analysis and comprehensive reporting
  • Applying industry-standard penetration testing methodologies

Projects & Labs

CTF Challenges

Writeups and solutions for various Capture The Flag competitions, demonstrating problem-solving and exploitation techniques.

CTFExploitationWriteups
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Web Application Testing

Security assessments of vulnerable applications like DVWA and WebGoat, identifying OWASP Top 10 vulnerabilities.

OWASPWeb SecurityBurp Suite
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Network Penetration Testing

Comprehensive network security assessments using Nmap, Metasploit, and other reconnaissance tools.

Network SecurityMetasploitNmap
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Security Tool Demonstrations

Practical demonstrations and tutorials on using various penetration testing tools and frameworks.

ToolsTutorialsKali Linux
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Certifications

Pre-Security Certificate

TryHackMe

2025 View Certificate

Get In Touch

Location

Dhaka, Bangladesh