Marcus Whitman

Managed services provider (MSP) supporting 44 client organizations

• Onboarded the CSP component that enabled GDAP and Microsoft 365 Lighthouse, then established delegated administration across 21 client M365 tenants, replacing per-client admin accounts with single-identity access
• Designed an AI-assisted automation framework of 20+ reusable workflows that standardizes security audits, network documentation, and client onboarding across 44 client organizations; in one three-week period it produced 12 onboarding scripts for a single client migration and API reference libraries for 4 MSP platforms
• Led the technical onboarding of an acquired MSP (20 client organizations) onto the company's standard toolset, building ~370 IT Glue infrastructure assets and moving documentation and credentials off plaintext SharePoint storage
• Onboarded 2 managed services clients end-to-end, from M365 tenant and license migration and Active Directory takeover through RMM, EDR, email security, and MFA enrollment
• Led the company-wide Duo MFA rollout, enrolling all employees and configuring SSO for 8 internal services
• Built the initial Microsoft Intune and Entra Join configuration for the company's ~40-employee rollout: compliance policies, a Windows security baseline, and Conditional Access, with device enrollment validated in testing

Healthcare-focused MSP and cloud consultancy

• Served as the sole L3 escalation system administrator (2020-2023) for 25+ clients on AWS and Citrix Cloud, then as senior system administrator trained the sysadmins hired from the largest client's IT department
• Led a 30+ server data center migration to AWS for a large elder-care organization using AWS Application Migration Service, and moved a ~20 TB PACS imaging server to EC2 by AWS Snowball instead of over the client's link
• Initiated and led the AWS Systems Manager rollout across every client account (300+ EC2 instances), building the service IAM roles by hand so new servers were configured through Run Command and Session Manager instead of RDP
• Onboarded client AWS accounts into the company's AWS Organization with cross-account roles, and built client VPCs from standard CloudFormation templates, plus site-to-site VPNs and AD Connector or AWS Managed Microsoft AD
• Administered Citrix Cloud on AWS for 25+ clients and 1,000+ users: built Machine Catalogs and Delivery Groups, deployed FSLogix, and repointed 30+ VDAs from NetScaler to Cloud Connectors in one client's move to Citrix Cloud
• Ran EC2 backup with N2WS and on-premises server backup with Cove Data Protection, including three full production recoveries of a client's 5 ransomware-hit servers (2 domain controllers) from EBS snapshots
• Designed a Windows 11 readiness inventory of 3,000+ workstations, pushing a PowerShell collector through N-Central into AWS DynamoDB (AI-assisted CloudFormation); found ~90 devices that could not upgrade
• Single-handedly moved ~100 client organizations' documentation from IT Glue to Confluence, designing the space structure and templates, and migrated thousands of credentials from IT Glue to LastPass, then to Keeper

Government-commissioned data services provider for local law enforcement and city and county governments

• Administered Windows Server infrastructure and Active Directory for municipal government clients across the St. Louis metropolitan area, within the organization's managed IT services group
• Managed WSUS patching, Dell Kace software deployment, and Citrix XenDesktop support for St. Louis County

• Provided enterprise desktop, application, and hardware support for clinical and administrative staff across a 15-hospital health system in a HIPAA-regulated environment

• Administered a 41-node HP-UNIX combat systems network with fiber optic backbone and Cisco routing infrastructure, performing scheduled maintenance, system administration, and real-time troubleshooting during operational deployments
• Earned two Navy Achievement Medals: one for restoring command and control servers during a live missile exercise, and one for contributing to a 98% Cruise Missile Qualification score

• Serves on the church's governing board (session) and, as clerk, maintains its official records and minutes