Director of Information Technology

Greeneville Oil & Petroleum, INC., Director of Information Technology
Greeneville, Tennessee | April, 2022 - November, 2025

• Led all IT and cybersecurity operations for a 400+ employee enterprise across 32 company-owned locations and 30 dealer sites.

• Served as the sole authority for cybersecurity strategy, including incident response, SIEM/EDR monitoring, phishing program development, firewall rule management, and vendor selection.

• Managed 160+ endpoints, including 85 workstations, 60 POS terminals, multi-site servers, and virtual infrastructure across Windows, Linux, and VMware environments.

• Built, tuned, and continuously improved Wazuh SIEM detection rules; investigated alerts and anomalies to proactively identify threats.

• Reduced false positives and improved response efficiency by analyzing and refining EDR and email security detections and creating custom threat rules and exceptions.

• Implemented and maintained patch management and remediation workflows across all endpoints using NinjaOne, strengthening security posture and system reliability.

• Designed and executed internal phishing simulation campaigns, improving employee security awareness and significantly reducing risky click behavior across the enterprise.

Security Systems Administrator

ARX Systems, Security Systems Administator
| November, 2025 - Present

IT & Cybersecurity Specialist

Greeneville Oil & Petroleum, INC., IT & Cybersecurity Specialist
Greeneville, Tennessee | April, 2010 - April, 2022

• Implemented technical application support and IT policy improvements, resulting in measurable increases in system performance and reliability.

• Developed and enforced security protocols to ensure system integrity, accessibility, and prevent unauthorized access, network intrusions, and data exfiltration.

• Designed, tested, and executed disaster recovery and business continuity plans, reducing downtime by 50%.

• Conducted regular vulnerability assessments using Tenable Nessus, achieving a 75% reduction in vulnerabilities.

• Monitored systems for misuse, intrusions, and abnormal events, providing early detection and response to threats.

• Ensured compliance with PCI-DSS and other industry standards through audits, system reviews, and technical controls.

• Delivered end-user support, troubleshooting complex system issues and improving day-to-day operational stability.

• Trained staff on cybersecurity awareness, policy adherence, and secure system usage.

• Served as the sole IT professional, rebuilding and modernizing company infrastructure from undocumented legacy systems.

• Managed enterprise networks, servers, endpoints, and POS infrastructure (VASC-certified, Verifone), ensuring secure and seamless operation.

• Contained and remediated security incidents including ransomware, malware, and unauthorized remote access without business interruption.

Lead Technician

Computer Pros, Lead Technician
Greeneville, Tennessee | November, 2004 - April, 2010

• Performed hands-on troubleshooting, repair, and maintenance of desktops, laptops, servers, and network equipment.

• Provided mentorship and technical guidance to junior technicians; reviewed work quality and assisted with complex issues.

• Assigned tasks, coordinated workloads, and ensured timely resolution of customer support requests.

• Communicated with clients to understand needs and priorities, offering recommendations to improve system performance and reliability.

• Conducted hardware and peripheral testing and verification to ensure functionality and compliance with specifications.

• Monitored systems performance, identified issues, and implemented adjustments to maintain optimal operation.