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Ahmed Alnajjar

Ahmed Alnajjar

Professional Penetration Testing & Cybersecurity Services
📍 Cairo, Egypt · (0) · Member since
Availability
🏠 Works remotely / from home Yes No
🧰 Travels to client Yes No
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Presentation

I provide comprehensive cybersecurity and penetration testing services across Web Applications, APIs, Mobile Applications (Android/iOS), Networks, and Active Directory environments.

My services include vulnerability assessment, security testing, attack surface analysis, manual security reviews, and identifying security weaknesses across different environments. I focus on validating vulnerabilities, assessing their real-world impact, and delivering clear, professional reports with Proof of Concepts (PoCs) and actionable remediation recommendations.

With hands-on experience in penetration testing, bug bounty hunting, and offensive security training, I aim to help businesses identify security risks, strengthen their security posture, and protect their digital assets through practical, structured, and responsible security testing.
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Offered services

2 services
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Background

1. Penetration Testing
Buguard · 01/08/2026 – Today
Learning and applying industry-standard penetration testing methodologies while contributing to vulnerability assessments, security testing, vulnerability validation, and professional security reporting.
3. Cybersecurity Teaching Assistant
Digilians · 01/03/2026 – 01/09/2026
Mentor students in Web, Network, and Mobile Penetration Testing. Provide technical support, explain complex cybersecurity concepts, and guide students through practical labs, CTF challenges, and hands-on security exercises.
Cybersecurity Instructor
EDUX · 01/12/2025 – 30/11/-0001
Deliver hands-on cybersecurity and offensive security training covering Web Penetration Testing, Network Security, and Active Directory. Guide students through practical labs, real-world attack scenarios, and security testing methodologies, helping them build practical skills for cybersecurity roles.
Bug Hunter
hackerone · 01/04/2025 – Today
Active Bug Hunter conducting security research and vulnerability discovery across public and private bug bounty programs on platforms such as HackerOne and Bugcrowd.

- Identified and reported 30+ security vulnerabilities.
- Performed advanced reconnaissance and attack surface analysis.
- Conducted in-depth API and Web Application security testing.
- Validated vulnerabilities and assessed their potential security impact.
- Prepared Proof of Concept (PoC) reports and actionable remediation recommendations.
🇬🇧English 🇲🇦Arabic
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Working hours

Monday
From08h00To18h00
Tuesday â–ª Today
From08h00To18h00
Wednesday
From08h00To18h00
Thursday
From08h00To18h00
Friday
From08h00To18h00
Saturday
Closed
Sunday
Closed
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Reviews

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