Matt Shellenbarger

IT professional with 10+ years of experience in systems administration, virtualization, and cybersecurity. Managed 200+ server VMware environments at UPMC, led security operations in regulated banking environments, and maintained mission-critical infrastructure with zero unplanned downtime. Holds a B.S. in Cyber Security with hands-on expertise in SIEM monitoring, PKI certificate management, incident response, and cross-functional project delivery.

Actively pursuing roles in IT infrastructure, systems administration, or cybersecurity.

Associate Software Engineer at UPMC (2023-05 – 2025-10)

• Administered VMware ESXi environments (v7.0/v8.0) spanning ~200 virtual servers across production, staging, and sandbox tiers — maintaining 99.9%+ uptime through high-availability configuration and off-peak maintenance windows.
• Managed PKI certificate lifecycle for all applicable systems, completing ~200 renewals per year with zero lapses in coverage or service disruption.
• Responded to network security alerts, assessed server-level risks, and coordinated remediation with the security team to minimize exposure across the environment.
• Executed monthly OS patching, datacenter host provisioning, and Dell IDPA backup administration to ensure stability, compliance, and recoverability.
• Authored runbooks, operational procedures, and system documentation to support audit readiness, team onboarding, and knowledge transfer.
• Mentored new team members across VMware and backup systems; led UAT for Contact Center Solution projects, validating releases against business requirements.

Jr. Incident Response Analyst at CNB Bank (2023-02 – 2023-05)

• Monitored SIEM queues and triaged cybersecurity alerts, escalating confirmed incidents to senior analysts while documenting findings and remediation steps.
• Served as first-line contact for staff security inquiries and contributed to incident response playbook improvements that reduced mean time to resolution.

Application Systems Analyst II at Marquette Savings Bank (2022-01 – 2023-02)

• Led end-to-end project lifecycle for banking system enhancements — from requirements gathering and design through deployment — coordinating with internal stakeholders and external vendors.
• Collaborated with external security auditors in purple teaming exercises, monitored SIEM dashboards, and identified and mitigated security risks across banking systems.
• Conducted root cause analyses, documented process gaps, and delivered improvement recommendations to reduce recurrence and operational risk.
• Proactively monitored application performance and implemented fixes before issues escalated into user-impacting outages.

Application Systems Analyst I at Marquette Savings Bank (2020-07 – 2022-01)

• Coordinated planning, design, and deployment of system projects and enhancements, ensuring deliverables met business requirements and timelines.
• Performed root cause analyses, documented process deficiencies, and recommended solutions to resolve workflow gaps and improve reliability.
• Proactively analyzed system behavior to identify and address performance bottlenecks before they impacted end users.

System Operator at Marquette Savings Bank (2018-07 – 2020-07)

• Administered nightly BOSS batch processing, monitored all application jobs, and reported errors to mitigate operational and financial risk.
• Executed end-of-day processing, nightly backups, print/burst operations, and secure file transmission to vendors including FIS (AS/400).
• Supported IT operations via Active Directory account management and new hire workstation configuration and deployment.

Library Computer Support Specialist at Mercyhurst University (2014-08 – 2020-07)

• Sole systems administrator for 10+ library software platforms (Koha ILS, OCLC, EBSCO EDS, Springshare suite, PastPerfect, Refworks) and five Drupal/SharePoint web properties.
• Trained and mentored library staff on systems and best practices; developed SQL reports providing actionable usage and collections data.
• Maintained hardware inventory, deployed and supported all library computers, and managed workstation configuration across the department.

B.S. in Cyber Security – Southern New Hampshire University (2023)

A.S. in Computer Information Systems – Tri-State Business Institute (2010)