Hazem Elsayed Email & Phone Number

Istanbul, Turkey

Dublin, County Dublin, Ireland

As an Offensive Security Engineer at Cyrex, my role involves manually testing and scrutinizing networks, web-based applications, Android apps, games, and computer systems to identify vulnerabilities. I employ a thorough methodology that enables me to identify potential threats to the confidentiality, integrity, and availability of the targeted systems.After testing, I prepare detailed reports that document all my findings and provide recommendations for remediation. In addition, I… Show more As an Offensive Security Engineer at Cyrex, my role involves manually testing and scrutinizing networks, web-based applications, Android apps, games, and computer systems to identify vulnerabilities. I employ a thorough methodology that enables me to identify potential threats to the confidentiality, integrity, and availability of the targeted systems.After testing, I prepare detailed reports that document all my findings and provide recommendations for remediation. In addition, I collaborate with the IT teams and management to develop effective solutions to mitigate the identified risks.My responsibilities also include providing feedback and verification after the implementation of security fixes to ensure the efficacy of the solutions. As a diligent and detail-oriented Penetration Tester, I am committed to delivering high-quality services to protect our clients' systems and sensitive information. Show less

As a seasoned penetration tester on HackerOne, I specialize in identifying and mitigating security vulnerabilities for a diverse range of clients. My expertise spans across web applications, mobile applications, and game technologies, ensuring robust protection against potential threats.

Actively participating in both public and private bug bounty programs through responsible disclosure of security vulnerabilities in various web, mobile, and game technologies and applications for high-profile organizations. Some notable achievements include:• Over 500 security vulnerabilities responsibly disclosed and fixed.• Over 60 acknowledgments received from organizations such as PayPal, CompTIA, Rockstar, Spotify, Snapchat, Yahoo, BlackRock, HackerOne, and the NBA , etc.•… Show more Actively participating in both public and private bug bounty programs through responsible disclosure of security vulnerabilities in various web, mobile, and game technologies and applications for high-profile organizations. Some notable achievements include:• Over 500 security vulnerabilities responsibly disclosed and fixed.• Over 60 acknowledgments received from organizations such as PayPal, CompTIA, Rockstar, Spotify, Snapchat, Yahoo, BlackRock, HackerOne, and the NBA , etc.• Ranked 298th on the all-time leaderboard (as of June 2024). Show less

In Sep , 2021 I was accepted as a member of the Synack Red Team, an invitation-only bug bounty platform with a 10% acceptance rate.

Istanbul, Turkey

During my tenure as an Information Technology and Cyber Security Consultant at NakitCoins, I leveraged my technology expertise to safeguard the organization's sensitive data from internal and external threats, including cybercrime and unauthorized use.My primary responsibilities included ensuring the organization's IT infrastructure was secure and up-to-date with the latest security protocols. Additionally, I collaborated with cross-functional teams to identify potential security risks… Show more During my tenure as an Information Technology and Cyber Security Consultant at NakitCoins, I leveraged my technology expertise to safeguard the organization's sensitive data from internal and external threats, including cybercrime and unauthorized use.My primary responsibilities included ensuring the organization's IT infrastructure was secure and up-to-date with the latest security protocols. Additionally, I collaborated with cross-functional teams to identify potential security risks and develop solutions to mitigate them.My efforts also extended to optimizing the organization's use of technology to ensure seamless availability for users. I employed a holistic approach that balanced the need for accessibility with the necessity for robust security measures.My commitment to delivering high-quality services and my passion for cybersecurity enabled me to make a significant impact during my time at NakitCoins. Show less

Working as a security researcher, testing third-party web applications for security vulnerabilities and disclosing them responsibly to their respective security teamshttps://app.zerocopter.com/user/h102x