Mario S.
Senior Penetration Tester | Specializing in Red Teaming, App Security & Threat Mitigation | GIACx9, CISSP, OSCP
- Role
- Sr Penetration Tester at OneZero Solutions
- Location
- Washington, DC, US
- LinkedIn followers
- 500 followers
About Mario S.
As an ethical hacker, red teamer, and cybersecurity analyst, I thrive on securing systems and networks against ever-evolving cyber threats. I specialize in adapting to cutting-edge technologies, staying ahead of trends, and delivering tailored solutions that empower businesses of all sizes to safeguard critical assets.My expertise lies in conducting penetration tests, identifying vulnerabilities, and crafting robust security strategies. Over my career, I’ve uncovered and remediated over 200 critical vulnerabilities for clients across industries. In one standout project, I led a team to deploy a comprehensive security solution that significantly strengthened a client’s defenses, helping them stay ahead of potential attacks. With more than 50 penetration tests completed, I’ve helped organizations bolster their security before threats can be exploited.Beyond my professional work, I’m deeply committed to giving back. As a Web Developer and Board Member for ACT Now Education, I collaborate with an amazing team to provide resources for military members, spouses, and Veterans. I’m passionate about lifelong learning and empowering others to reach their potential, because I believe knowledge is power and together we can build stronger communities. When I’m not diving into the latest cybersecurity challenge, you’ll find me volunteering or geeking out over new tech.Let’s connect to tackle cybersecurity challenges, share insights, or explore collaboration opportunities. I’m always up for a good conversation!
Experience
Sr Penetration Tester
Dec 2023 — Present · Alexandria, VA, US
Education
Purdue University Northwest
Cybersecurity-System Administration Certificate Program
Cyber Center of Excellence NCO Academy
Basic Leadership Development Course
SANS Technology Institute
Graduate Certificate, Penetration Testing & Ethical Hacking
Reskill Americans
Full Stack Web Development | UX/UI Design | App Development
2021
Trident University International
Master of Business Administration - MBA
Western Governors University
Bachelor’s Degree, Network Operations and Security
Western Governors University
Master of Science - MS, Cybersecurity and Information Assurance
Cyber Center of Excellence NCO Academy
Advanced Leadership Development Course
Frederick Community College
Associate of Arts (A.A.), Psychology
Frederick Community College
Associate of Science - AS, Pre-Nursing Studies
White Knight Labs
Advanced Red Team Operations
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