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Michael Lessing

@michaellessing

IT security professional at BioreferenceLaboratories handling IAM, endpoint alerts, and incident triage.

At BioreferenceLaboratories, I handle L2 administration and incident triage across a healthcare IT environment, supporting Windows endpoints, Active Directory, and Microsoft 365. I review and escalate suspicious account activity and endpoint security alerts using SentinelOne and ManageEngine.

I also administer identity lifecycle operations, including provisioning, MFA, and role-based access, and partnered with Cybersecurity and business stakeholders to develop standardized RBAC access templates and onboarding/offboarding procedures. In personal projects, I’ve developed PowerShell tools for Windows crash analysis and network discovery, and I’m developing a multiplayer pinball game in Unreal Engine 5.

Experience

Work history, roles, and key accomplishments

Current

Service Desk Specialist L2

Current

Bioreference Laboratories

May 2022 - Present (4 years 6 months)

Performs L2 administration and incident triage across a large healthcare IT environment, supporting Windows endpoints, Active Directory, Microsoft 365, identity services, and endpoint security platforms. Reviews and escalates suspicious account activity and security alerts, and administers identity lifecycle operations.

Active Directory Microsoft 365 Microsoft Entra ID SentinelOne ManageEngine Windows 10 11 Intune PowerShell Group Policy IAM RBAC MFA Incident Triage Endpoint Security HIPAA

Store Leader

GameStop Inc

Oct 2018 - Jun 2022 (3 years 8 months)

Managed, trained, and developed employees while overseeing operational performance, inventory, scheduling, and customer escalations. Improved key store performance metrics by approximately 80% during tenure.

Team Management Training Inventory Management Scheduling Customer Service Operations Management