Infrastructure Systems Administrator with 12+ Years Experience

Thomas Brereton

****.********@*****.*** Edmond, OK, 73025, United States 319-***-****

Summary

Highly accomplished Senior Healthcare IT Systems Engineer with over 8 years of experience in architecting, implementing, and managing enterprise endpoint solutions. Proven ability to lead cloud modernization efforts, transitioning from SCCM to Microsoft Intune and significantly reducing ticket volumes. Expertise in HIPAA-regulated environments, EMR stabilization, and designing scalable printing infrastructures, demonstrated by a 400-ticket reduction per month. Adept at driving operational efficiency and technical innovation to support critical healthcare operations.

Work Experience

Senior Healthcare IT Systems Engineer, Everside Health, Denver 02/2021 – Present

Architected and deployed the organization’s inaugural enterprise endpoint management platform by building SCCM from the ground up, effectively replacing manual application installations and external hard drive-based imaging. Designed and maintained SCCM imaging and application deployment workflows, enabling self-service software installations through Company Portal and substantially reducing Tier 1 ticket volume.

Spearheaded cloud modernization initiatives by transitioning endpoint imaging and application management from SCCM to Microsoft Intune, reconstructing application packages, policies, and workflows to align with a cloud-first strategy. Administered Intune, Azure, and O365, managing device deployment, identity, licensing, and daily operations within a stringent HIPAA-regulated environment. Orchestrated enterprise ECW update reliability by substituting vendor auto-update mechanisms with controlled SCCM deployments, thereby elevating upgrade success rates to over 95%.

Collaborated with the Clinical Applications, Networking, and vendor teams to stabilize Electronic Clinical Workflow (ECW) processes, including labeling, scanning, EKG, and spirometry functions.

Partnered with Tier 1 and Tier 2 support teams to diagnose recurring issues via ticket trend analysis, conducting root cause analyses and implementing engineered solutions with comprehensive documentation for scalable, long-term resolutions. Engineered and implemented a cloud-based printing infrastructure across over 700 clinics utilizing Printer Logic. Standardized and migrated printers (1-4 per clinic) into a centralized cloud platform, directly engaging clinicians nationwide, which decreased printer-related tickets by approximately 400 per month.

Coordinated with the Networking team to design and deploy certificate-based printer auto- deployment, facilitating automatic installation of location-specific printers upon device network connection.

Systems Administrator, Vantiv, Denver

07/2016 – 12/2020

Delivered enterprise systems administration and IT support for over 1,000 end users, maintaining critical business applications and infrastructure within a large corporate setting. Managed SCCM application deployment and imaging workflows for more than 1,000 endpoints and numerous enterprise applications, ensuring standardized builds and enhanced endpoint consistency.

Administered Active Directory, VMware, and Citrix environments, supporting scalable enterprise authentication, virtualization, and secure remote access. Oversaw the complete endpoint lifecycle, including provisioning, imaging, patching, and decommissioning, to guarantee reliability, compliance, and consistent operational standards. Senior IT Specialist, United Parcel Service, Cedar Rapids 06/2013 – 06/2016

Functioned as the sole IT authority for seven UPS facilities, overseeing networking, servers, domain infrastructure, printers, systems, and end-user support. Served as the primary escalation point for all IT incidents across seven UPS facilities, independently diagnosing and resolving complex system, network, and infrastructure issues within a high-availability logistics environment.

Planned and executed infrastructure upgrades and replacements with minimal disruption, ensuring continuous operational support for time-sensitive shipping and distribution workflows.

Education

Bachelor of Arts, Computer Science, University of Iowa, Iowa City 2008 – 2012

Minor in Economics

Skills

SCCM / MECM Microsoft Intune Azure / Azure AD O365 Administration Endpoint Management Cloud Migration Healthcare IT HIPAA Compliance EMR (eClinicalWorks, Epic, Athenahealth) Application Packaging Imaging Autopilot Meraki VMware Cisco Citrix PrinterLogic

Identity & Access Management Systems Architecture Root Cause Analysis Incident Trend Analysis Enterprise Troubleshooting Technical Documentation Knowledge Base Development AWS Enterprise Architecture System Design Technical Leadership Project Management Collaboration Communication Problem Solving Analytical Thinking Adaptability

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