Systems Administrator Access Control. Azure, basic SQL scripting

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WILLIAM CHAPMAN

Systems Administrator

PROFESSIONAL SUMMARY

Systems Administrator with 27 years of extensive expertise in managing complex IT infrastructures and ensuring 99% system uptime. Proficient in access control, performance optimization, and network security, with a proven track record in solving intricate Tier-3 escalations and enhancing compliance with industry standards. Demonstrates a strong commitment to optimizing server performance and mitigating outages, while consistently supporting and collaborating with diverse teams across multiple locations. EMPLOYMENT HISTORY

SOFTWARE SYSTEMS ADMINISTRATOR Jun 2005 - Apr 2025 Iowa Valley Community College District Marshalltown, IA Managed role-based access control.

• Provisioned user accounts.

• Diagnosed and solved complex Tier-3 escalations.

• Achieved 99% uptime.

• Upgraded Cisco and PaloAlto NGFWS firewall solutions.

• Managed set up and card access for security doors across locations.

• Managed several video surveillance systems.

• Managed 9 critical systems.

• Ensured no data loss during failovers.

• Managed security patches on 5 devices.

• Predicted and mitigated outages proactively.

• Supported 4 locations.

• Implemented managed security certificates for over 20 web systems.

• Set up and managed all single sign-on solutions.

• Improved compliance with industry standards.

• Took ownership of end-user technical support.

• Optimized server performance.

• Ensured compliance with certification requirements.

• Minimized disruption to business systems.

• Completed within expectations of budget and timeline constraints.

• Utilized data-driven ERP systems over 20 years.

• Ensured compliance with standards/policies.

• Troubleshot user and system connection issues.Implemented role-based access control, enhancing security protocols and ensuring compliance with industry standards across multiple platforms.

AS 400 SYSTEM ADMINISTRATOR Jan 2000 - Jun 2005

Jenzabar, Inc Harrisonburg, VA

Configured VPN access.

• Collaborated with IT team.

• Managed IBM As400 Mainframe system.

• Conducted server maintenance.

• Ensured successful data restore rate of 100%.

• Used RPG and HTML for automation.

• Worked hand-in-hand with implementation team upgrading legacy systems to Jenzabar EX platform.

• Decommissioned outdated or redundant hardware.

• Reviewed and refined firewall settings.

INTERNET TECHNICIAN Jan 1998 - Jan 2000

Marshall Net Marshalltown, IA

Built and repaired PCs for customers.

• Supported a UNIX-based Internet and office management system.

• Supported technical issues for Internet.

• Bid and set up networking systems to generate income and grow the business. EDUCATION

ASSOCIATE OF APPLIED SCIENCE IN COMPUTER NETWORKING Jan 1999 - Dec 1999

Marshalltown Community College Marshalltown, IA

1984

Marshalltown High School Marshalltown, IA

SKILLS

Cisco ASA (Experienced), PaloAlto (Beginner), VPN (Experienced), Firewall Management

(Skillful), RBAC, ERP Systems (Expert), AS400 (Skillful), RPG (Beginner), HTML

(Experienced), System Administration (Expert), Network Security (Skillful), Technical Support

(Expert), Incident Management (Skillful), Performance Optimization (Beginner), Access Control

(Expert), Unix (Beginner).

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