Stefan Keir
@stefankeir
Infrastructure-focused IT systems engineer driving secure, scalable cloud and on-prem solutions.
United StatesWhat I'm looking for
I am an energetic IT Administrator and Systems Engineer with a data-driven, holistic approach and over 11 years designing and implementing robust IT infrastructures, plus 2 years leading infrastructure teams.
I have led Active Directory redesigns and migrations, built Azure subscriptions and networking from the ground up, and managed virtualization, backup, and security initiatives while overseeing cross-functional projects and vendor relationships.
As a hands-on leader, I manage teams, streamline operations, deploy cloud and endpoint security solutions, reduce technical debt, and produce measurable improvements in reliability, compliance, and operational efficiency.
Experience
Work history, roles, and key accomplishments
Senior Lead Infrastructure Administrator
National Council of State Boards of Nursing
Jan 2022 - Present (4 years)
Lead infrastructure team and projects to ensure reliable, secure IT operations; migrated and upgraded server environments (80+ servers), removed 500+ AD objects across domains, and deployed Azure Virtual Desktop and organization-wide Defender/Intune.
IT Project Manager
The Boler Company
Jan 2020 - Jan 2022 (2 years)
Managed domain and network administration, SCCM/MECM deployments, VMware migrations and multi-site network separation projects, and coordinated vulnerability management with Rapid7 to improve security and uptime.
Lead Computer Systems Administrator
Hendrickson International
Jan 2013 - Jan 2020 (7 years)
Served as primary IT contact for corporate HQ and regional offices, managing server, telephony, and desktop lifecycles, deploying imaging and asset tracking processes, and supporting executive and distributed user environments.
Education
Degrees, certifications, and relevant coursework
DUDePaul University
Master of Science, Computer Graphics and Motion Technology
Completed a Master of Science in Computer Graphics and Motion Technology focused on advanced graphics and motion technologies.
LCLoyola University Chicago
Bachelor of Science, Computer Science
Completed a Bachelor of Science in Computer Science with coursework covering software, systems, and IT fundamentals.
Tech stack
Software and tools used professionally
Availability
Location
United StatesAuthorized to work in
Job categories
Skills
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