Open to opportunities

Stefan Baan

@stefanbaan

Message

I secure Microsoft 365 and Azure environments through offensive security and resilient infrastructure.

Netherlands

Message

What I'm looking for

I'm looking to deepen my work in offensive security, penetration testing and cloud security, combining Microsoft 365, Azure and infrastructure expertise with hands-on security engineering and ethical hacking.

At 1KEY ICT Solutions, I design and implement zero-trust security architecture, conduct risk assessments, vulnerability scans and penetration tests, and translate findings into concrete mitigation plans.

I've solved complex RDS infrastructure issues where standard troubleshooting failed, built an Azure MFA solution for RD Gateway using a dedicated NPS VM, and migrated a Terminal Server environment to Azure Virtual Desktop and Windows 365 Boot.

I also build offensive-security tooling, including Pentest Control: an automated pentest platform with a FastAPI backend, remote agents, multi-agent AI and hash-chain audit logging. I'm working toward CPTS certification and practise ethical hacking daily through my Cyberstefan platform.

Experience

Work history, roles, and key accomplishments

Current

Cybersecurity Engineer

Current

1KEY ICT Solutions

Dec 2022 - Present (3 years 8 months)

Designed and implemented security architecture (zero-trust, hardening according to CIS/NIST) and increased security level within Microsoft 365. Conducted risk assessments, external vulnerability scans, and pentests, and translated findings into concrete mitigation plans.