John Kerkhoff
Green Bay
Summary
Versatile IT Manager with comprehensive experience in managing diverse teams and deploying technology solutions to drive business operations. Known for strategic problem solving, adept at project management, and skilled in cloud-based systems integration. Leveraged technical expertise to streamline processes, enhance system efficiency, and improve data security in previous positions.
Overview
21
21
years of professional experience
1
1
Certification
Work History
Sr. Applications System Administrator
Advocate Healthcare
Green Bay
06.2012 - Current
- Technical Lead and Subject Matter Expert for enterprise McKesson Radiology PACS, overseeing operational stability and lifecycle support for 1,500+ imaging modalities and 20,000+ application installations across the organization.
- Strategic Lead of the Merge/Emageon Vendor Neutral Archive (VNA), responsible for performance, availability, and capacity planning of 600+ TB of clinical imaging data.
- Application Lead for Viewpoint PACS and reporting solutions supporting Obstetrics and Gynecology ultrasound workflows, ensuring system reliability and clinical alignment.
- Key Project Resource for major McKesson Radiology PACS upgrades, directing end‑to‑end activities including planning, architecture design, vendor coordination, testing, go‑live execution, and post‑implementation stabilization.
- Core Contributor to enterprise imaging infrastructure strategy, delivering long‑term archive refresh recommendations and disaster recovery planning to improve resilience, scalability, and compliance.
- Lead Technical Resource during a multi‑year enterprise imaging transformation, supporting the successful conversion from film and Emageon PACS to McKesson PACS, ensuring continuity of care and clinician adoption.
- Senior Implementation and Upgrade Resource for multiple enterprise systems, including PowerScribe 360, Merge iConnect, syngo.via, and large‑scale storage platform upgrades and migrations.
Corporate Systems Administrator II
The Manitowoc Company, Inc.
Manitowoc
01.2005 - 01.2012
- Lead Focus on maintaining four Active Directory environments with over 70 sites and 85 domain controllers. One of three people that hold the enterprise administration role.
- Implement and maintain Oracle’s Hyperion Enterprise Performance Management System with the following modules: Hyperion Financial Management, Hyperion Workspace, Hyperion Financial Reporting, and Hyperion Financial Data Quality Management.
- Maintain Exchange environments (Including support for Blackberry Enterprise Server, Good Mobile Messaging, and Airwatch)
- Significant experience in maintaining EMC Clarion, SANs, as well as IBM XIV experience with Brocade and McData switches.
- Implement and design VMware ESXi environments. Migrated over 50 physical servers into virtual servers. Set up and maintained VMware ESX and ESXi environments with over 500 plus guest hosts. Developed backup and recovery strategies by taking copies of the guest host and replicating them over the network to other sites for disaster recovery.
- Participated in selection, design and implementation of in-house disaster recovery strategy for the Manitowoc Corporate office, including Commvault Simpana technology and utilization of Quest Vranger by replication over the WAN utilizing multiple Data Domains.
Education
Doctor of Healthcare Administration -
University of Phoenix
Phoenix, Arizona02.2028
Master of Business Administration - MBA -
University of Phoenix
Phoenix, Arizona05.2024
Bachelor of Science - Management
University of Phoenix
Phoenix, Arizona08.2020
Associates Degree - Network Specialist
NorthEast Wisconsin Technical College
Green Bay, Wisconsin12.2006
Skills
- Team leadership
- Project management
- Team collaboration
- Data analysis
- Process improvement
- Vendor management
- Cybersecurity management
- IT governance
- IT infrastructure
- IT budgeting
- Enterprise architecture
- Staff hiring
- Attention to detail
- Healthcare information technology
- System administration
Certification
• ITIL Foundation
• Six Sigma Yellow Belt
• Six Sigma Yellow Belt
Additional Training
- Hyperion System 9 Planning Installation and Configuration (Hyperion Solutions Corporation)
- Oracle Enterprise Performance Management/Financial Management Application Administration and Configuration (Oracle University)
- Managing MS System Management Server (Microsoft)
- Dell/EMC SAN Management and Data Protection (DELL/EMC)
Timeline
Sr. Applications System Administrator
Advocate Healthcare
06.2012 - Current
Corporate Systems Administrator II
The Manitowoc Company, Inc.
01.2005 - 01.2012
Doctor of Healthcare Administration -
University of Phoenix
Master of Business Administration - MBA -
University of Phoenix
Bachelor of Science - Management
University of Phoenix
Associates Degree - Network Specialist
NorthEast Wisconsin Technical College