Professional Summary
Lead Systems Administrator with 15+ years of experience across fintech, healthcare, MSP, and higher education. Specialized in AWS/Azure, virtualization, identity systems, security hardening, and automation. Known for driving cross-team initiatives, building scalable systems, reducing attack surfaces, and leveraging PowerShell and AI-assisted tooling to improve IT workflows and reduce operational overhead.
Professional Experience
Lead Systems Administrator
Shift4 Payments · Fintech
- Manage AWS infrastructure, performance monitoring, and high-availability configurations for critical systems.
- Led enterprise server migration (100+ systems), improving uptime by ~20%.
- Implement and maintain Okta SSO integrations for platforms like Slack, GitLab, Salesforce, and Monday.com.
- Oversee Ivanti patch management, AV automation, and endpoint hardening for Windows/macOS fleets.
- Drive asset management programs and support infrastructure for M&A expansions.
- Migrated 20+ domains to Cloudflare to improve DNS security and threat mitigation.
- Deliver Tier IV support, including Duo MFA, GPO, escalated incidents, and complex troubleshooting.
- Develop custom PowerShell scripts to automate repetitive tasks and improve SLA performance.
- Participate in forensic analysis and security investigations alongside Security and Network teams.
- Actively adopt AI-assisted tooling to accelerate troubleshooting and script development.
AWS Systems Administrator
Ironistic · Digital Agency / Hosting
- Managed full AWS stack including EC2, ELB, S3, IAM, and Route 53 for 500+ hosted websites.
- Maintained uptime and security of mixed Linux/Windows hosting environments.
- Administered 45+ servers, managed lifecycle upgrades, and handled Plesk hosting operations.
- Configured and managed Cloudflare DNS and security settings.
- Supported clients through Pentest results, remediation, and infrastructure issues.
Senior / Lead Systems Administrator
Stetson University · Higher Education
- Administered 60+ Windows servers across VMware ESXi and Hyper-V environments.
- Built the first VMware cluster for the College of Law and migrated 30+ servers from Hyper-V to ESXi.
- Led Tenable-based vulnerability remediation and patching programs.
- Led a university-wide Microsoft MFA rollout and a SharePoint-to-Teams migration initiative.
- Managed Druva-based backups and ongoing server maintenance for critical services.
Chief Information Officer
Millennial Networks · MSP
- Provided full-stack MSP support to 50+ clients across servers, networks, and EMR platforms.
- Designed and deployed VMware environments, Azure, Office 365, VoIP, and hosting solutions.
- Trained and mentored a team of 5 junior admins while scaling MRR to ~$25K.
- Reduced AWS spend by ~5% through usage analysis and right-sizing.
Systems Administrator
Eastern Consulting Group · Healthcare
- Led migration to Windows Server 2012 R2 across 9 regions.
- Delivered EMR training to 100+ medical staff and supported multi-office infrastructure.
- Designed WAN/LAN using IPSec VPN, and created disaster recovery documentation.
- Managed VMware vSphere and core server infrastructure for medical practices.
Systems Administrator
Droguería Betances · Distribution / Healthcare
- Maintained AS/400, servers, and networking for 24/7 operations.
- Designed an iPad ordering system that generated ~$20M in its first year.
- Built DR plans and Windows Failover Clusters for critical services.
- Managed SFTP integrations for secure medical data workflows.
- Led a company-wide Windows 7 migration project.
Core Competencies
Cloud & Infrastructure
AWS (EC2, S3, Route 53, IAM)
Azure
VMware ESXi
Hyper-V
Identity & Security
Active Directory
Okta SSO
Duo MFA
Cloudflare
Ivanti EPM
Security Hardening
Splunk / SIEM
Automation & AI
PowerShell Automation
AI-assisted scripting
Workflow optimization
Predictive monitoring concepts
Networking & OS
FortiGate Firewalls
IPSec VPN
DNS · VLANs
Windows Server
Linux (CentOS/Ubuntu)
macOS
Web & Tooling
Apache / Nginx
WordPress
Plesk / cPanel
Icinga
CloudWatch
Jira · Confluence
LanSweeper
Ninite
Key Achievements
- Promoted multiple times into Lead Systems Administrator roles (Stetson University, Shift4 Payments).
- Scaled MSP operations at Millennial Networks to ~$25K MRR while leading a small technical team.
- Designed an iPad ordering system generating ~$20M in its first year of operation.
- Migrated a datacenter to a co-location facility connecting 9 offices via secure networking.
- Delivered large-scale MFA deployments and cloud migration projects across industries.
Languages
English – Fluent
Spanish – Fluent