Our Expert Team
Meet the security experts who protect your digital assets. Our team combines over 150 years of experience in cybersecurity, compliance, and risk management.
50+
Security Experts
200+
Certifications
15+
Years Avg. Experience
30+
Nationalities
Leadership Team
The minds behind ATLAS Advisory
Dr. Sep Siebrands
Partner & Marketing Director
Strategic Marketing & Business Development
Dr. Sep Siebrands is co-founder and partner at ATLAS Advisory with a PhD in Marketing Management. He is responsible for strategic positioning in the European cybersecurity market and has built over 50 Fortune 500 partnerships. With deep understanding of security technologies, he combines technical expertise with business strategy.
Certifications
Expertise
Don Amel, B.Sc.
Security Trainee
Security Strategy & Risk Management
Don Amel is a Security Trainee at ATLAS Advisory with a Bachelor's degree in Information Security. He works closely with our senior team on risk assessments and compliance projects. Currently preparing for CISSP and CEH certifications while gaining hands-on experience in ISO 27001 audits.
Certifications
Expertise
Noah Schütz, M.Sc.
Lead Security Specialist
Penetration Testing & Vulnerability Research
Dr.-Ing. Noah Schütz is our leading security specialist with a PhD in IT security and over 10 years of penetration testing experience. He has discovered numerous critical vulnerabilities in enterprise software and is a regular speaker at Black Hat and DEF CON. His expertise includes advanced pentesting and red team operations.
Certifications
Expertise
Lennart Meier, B.A.
Social Media Manager
Digital Communication & Employer Branding
Lennart Meier is responsible for social media and content marketing at ATLAS Advisory. He has increased our LinkedIn followers by 300% and established our thought leadership presence on X and Instagram. With creative storytelling, he makes complex cybersecurity topics accessible and engaging.
Certifications
Expertise
Dr. phil. Özkaya Zübeyir Talha
Head of Security Operations, CISSP
Incident Response & Security Architecture
Dr. phil. Özkaya Zübeyir Talha is Head of Security at ATLAS Advisory with a PhD in IT security and over 15 years of leadership experience. He was previously CISO at several DAX companies and is responsible for our security strategy, incident response operations, and compliance programs. CISSP since 2012.
Certifications
Expertise
Our Certifications & Accreditations
Continuous training and highest standards
CISSP
OSCP
CEH
CISM
CIPP/E
GCIH
GPEN
GWAPT
AWS Security
Azure Security
ISO 27001 LA
CRISC
Join Our Team
We are constantly looking for talented security experts who want to shape the future of cybersecurity with us.
View Career Opportunities