Mariusz Z.
Sopot, Poland
Security Consultant. CISSP, ISO 27001 Lead Auditor, OSCP, SANS GXPN
$70.00/hr
Cybersecurity Expert working in the industry since 2008. Delivers security audits and security consulting services. Specializes in following areas:
1. Auditing and designing Information Security Management Systems,
2 Conducting ISO 27001 gap assessments and internal audits,
3. Designing security solutions for cloud-based environments,
4. Conducting Threat Modeling and proposing architectural mitigation strategies for cloud-based and on-premise IT infrastructures,
5. Conducts Adversary Simulations and Red Team Operations to verify prevention, detection and response capabilities of mature cybersecurity programs (CBEST, TIBER-EU),
6. Conducting GDPR related data security and privacy consulting.
Mariusz possesses following security industry certifications:
1. CISSP - Certified Information Systems Security Professional: since 2014
2. OSCP - Offensive Security Certified Professional: since 2016
3. GXPN - GIAC Exploit Researcher and Advanced Penetration Tester: since 2017
4. Certified ISO 27001 Lead Auditor: since 2024
During the years of working with clients worldwide Mariusz conducted over 100 security assessments, penetration tests and analysis projects.
Work history
Work history
Network & Infrastructure Penetration Tester / Ethical Hacker
Oct 16, 2019
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May 8, 2024
No feedback given
Private earnings
Penetration Testing - Web Creator Suite
Jan 5, 2021
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Jun 12, 2023
"Excellent job - very thorough and responsive as usual. Will use again."
Private earnings
Penetration Testing - Web Creator Suite
Dec 13, 2022
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Jun 12, 2023
"Excellent job as usual!"
Private earnings
Private Job
Jun 23, 2020
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Mar 17, 2021
"Mariusz always delivers exactly as he says. His approach is professional, trustworthy and on time, ending contract as no current work. Look forward to working with Mariusz again shortly"
Private earnings
Security Audit
Mar 21, 2019
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Jan 18, 2021
"Mariusz is a great pen tester. Working with him was smooth, the penetration test was done in-depth and uncovered issues we were not aware of. He responded quickly to any…
Private earnings
Cloud PT
May 5, 2020
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Jun 23, 2020
Private earnings
Web application security testing
Feb 21, 2020
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Apr 25, 2020
"Mariusz, is a true cyber security expert, he has a deep knowledge of vulnerabilities and how to protect your organisation from them, he can translate complex problems into early to…
Private earnings
Penetration Testing - Web Creator Suite
Jul 26, 2019
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Mar 29, 2020
"Good job!"
Private earnings
Black box pen tests
Apr 24, 2019
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Mar 8, 2020
Private earnings
Private Job
Feb 25, 2020
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Mar 4, 2020
"Mariusz is a professional! We cannot recommend him highly enough for any security-based/pen test tasks. As always excellent communication and gets the job done. Thanks again Mariusz!"
Private earnings
Cybersecurity Expert Wanted
Apr 20, 2022
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Present
Job in progress
Private earnings
Wanted: Ethical Hacker
Aug 11, 2020
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Present
Job in progress
Private earnings
Penetration Tester to complement Consulting Team
Sep 12, 2019
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Present
Job in progress
Private earnings
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Skills
Skills
- Cybersecurity Management
- Vulnerability Assessment
- Security Assessment & Testing
- Information Security
- Penetration Testing
- IT Compliance Audit
- ISO 27001
- Cloud Security Framework
- Security Infrastructure
- Web App Penetration Testing
- Network Penetration Testing
- Cloud Security
- Web Application Security
- Certified Information Systems Security Professional
- Compliance Consultation