Hi, I’m Tomasz Sielski
Enterprise identity architecture, Zero Trust and cloud security
IAM Architect · Identity Platform Owner · Zero Trust · Cloud Security
Most IAM architects speak either business or technology fluently. I work in both — translating between CISO strategy and Conditional Access policy, between compliance requirements and engineering tickets, between what an organisation needs and what its identity platform actually does.
20+ years. Hundreds of thousands of users. Currently at Erste Bank Polska.
See how I work → PortfolioIdentity architecture
JML lifecycle, Entra ID, Conditional Access, SSO, SCIM provisioning
Zero Trust design
Policy-based access, continuous verification, least-privilege enforcement
Cloud security
Azure, Defender for Cloud, IAM governance across hybrid environments
Strategy to implementation
Bridging CISO requirements and engineering — from roadmap to running system
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