// Identity
Selim Dursun
Cybersecurity Manager
About
Cybersecurity professional with 6+ years of experience protecting critical infrastructure across finance, government, and industry. OSCP-certified with strong offensive depth in penetration testing, red teaming, and exploit development. Has led security projects on high-frequency trading platforms, managed risk frameworks aligned with DNB requirements, and built custom automation to scale operations. Comfortable working across cross-functional international teams.
Experience
[ 2020 → present ]
BDO Advisory B.V.
Cybersecurity
[ 2026 → present ]
current
Cybersecurity Manager
- Lead end-to-end delivery of complex cybersecurity projects (penetration testing, red teaming, security assessments), managing timelines, scope, and resources for clients across finance, government, and industry.
- Manage key client accounts and drive business development, acting as primary strategic advisor and growing the cybersecurity practice's revenue pipeline.
- Develop and own client security strategies, defining risk-based roadmaps tailored to each organisation's threat landscape and maturity level.
- Stay hands-on in complex penetration testing and red team engagements alongside management responsibilities, ensuring technical credibility and quality assurance.
[ 2020 → 2026 ]
Cybersecurity Consultant
- Led the end-to-end penetration testing lifecycle from scoping to C-level reporting for 15+ enterprise clients across finance, government, and retail.
- Executed full-stack security assessments across web applications, APIs, internal networks, ICS/SCADA systems, and cloud environments (Azure, AWS).
- Directed complex red team engagements including assumed-breach scenarios, physical intrusions, and phishing simulations, translating findings into actionable business risk.
- Mentored 5+ junior consultants and graduation interns toward independent delivery, frequently acting as interim team lead.
[ 2019 → 2020 ]
University of Applied Sciences Leiden
Teaching Assistant
- Delivered hands-on ethical hacking workshops to students in the Digital Forensics specialization, covering core offensive security concepts and tooling.
- Promoted the Digital Forensics specialization during open days and acted as a point of contact for prospective students interested in cybersecurity.
Certifications
Responsible Disclosures
Identified and responsibly reported critical and high-impact vulnerabilities to organisations across government, automotive, retail, and energy sectors.
Government of the Netherlands Ferrari Ahold Delhaize Gemeente Amsterdam Royal FloraHolland Pon Bol Achmea Logicx Channable University of Washington Motio PostNL Vattenfall Carlsberg Group Government of the Netherlands Ferrari Ahold Delhaize Gemeente Amsterdam Royal FloraHolland Pon Bol Achmea Logicx Channable University of Washington Motio PostNL Vattenfall Carlsberg Group
Carlsberg Group Vattenfall PostNL Motio University of Washington Channable Logicx Achmea Bol Pon Royal FloraHolland Gemeente Amsterdam Ahold Delhaize Ferrari Government of the Netherlands Carlsberg Group Vattenfall PostNL Motio University of Washington Channable Logicx Achmea Bol Pon Royal FloraHolland Gemeente Amsterdam Ahold Delhaize Ferrari Government of the Netherlands
Skills
// Offensive
Penetration Testing Red Teaming OSINT Social Engineering Physical Security Testing Exploit Development Post-Exploitation
// Cloud & Infrastructure
Azure AWS ICS/OT Active Directory Container Platforms CIS Benchmarks Network Security
// Risk & Governance
ISO 27001 NIST BIO DNB ISMS Threat Modeling Architecture Reviews Vulnerability Management SDLC
// Automation & AI
Autonomous Agentic Workflows LLM Orchestration Security Orchestration Go Python Bash
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