ROBERT V. DIAZ
Miami,FL
Summary
IT Manager specializing in enterprise infrastructure, network operations, and cybersecurity. Expertise in overseeing system upgrades, strengthening security through policy enhancements, and managing multi-site networks. Committed to delivering high-availability IT services while improving operational efficiencies and user satisfaction.
Overview
1
1
Certification
19
19
years of professional experience
Work History
Network Administrator & Help Desk Manager
Goodwill Industries of South Florida
Miami, FL
03.2012 - Current
- Lead system upgrades, patching cycles, and maintenance to ensure high availability and security.
- Strengthen security through policy reviews, access controls, endpoint hardening, and monitoring.
- Oversaw daily IT operations for enterprise users, multi-site networks, and critical business systems to ensure seamless functionality.
- Provided on-call support for network/system emergencies, restoring services rapidly to minimize downtime.
- Diagnose and resolve server, workstation, and network performance issues.
- Coordinate IT strategy, technology improvements, and long-term infrastructure planning with leadership.
- Delivered end-user training and support for hardware, software, and connectivity, enhancing user proficiency and satisfaction.
- Improve reliability of supply-chain and order-processing systems for 34 stores and 2 headquarters.
Additional Enterprise Expirience
Goodwill Industries of South Florida
01.2015 - 01.2026
- Administered Microsoft 365, Azure AD, Entra ID, Intune, Autopilot, and conditional access with MFA.
- Managed enterprise endpoint security solutions including SentinelOne and CrowdStrike for PIM/PAM.
- Led always-on VPN deployments across 900+ endpoints utilizing Windows Server RAS and Intune.
- Rebuilt DNS, Active Directory domains, PKI, and automated certificate lifecycle management.
- Managed Cisco Meraki networks, firewall policies, VLANs, and WAN connectivity to ensure seamless operations.
- Directed modernization initiatives for VMware upgrades, SAN replacements, and cloud migrations to enhance system reliability.
- Supported NOC operations through incident response and LAN/WAN troubleshooting efforts.
- Implemented IT governance frameworks based on ITIL and NIST standards to align IT processes with industry best practices.
Windows Server Administrator
Digiport Data Center
Miami, FL
09.2011 - 01.2012
- Installed and configured Windows Server 2008 R2, SQL Server 2010, Exchange 2010, Windows 7 to ensure system reliability and performance.
- Implemented Hyper-V and supported VMware/vSphere 4.0 environments, enhancing virtualization capabilities.
- Assisted with virtualization enhancements and optimized infrastructure for improved resource allocation.
IT Services & Management Consultant
Miami, FL
11.2007 - 05.2010
- Recommended and implemented technology solutions to address client needs and resolve technical issues.
- Oversaw procurement and lifecycle maintenance of IT equipment, ensuring optimal performance and reliability.
- Implemented secure router configurations, antivirus solutions, and backup strategies.
- Consulted for small businesses, diagnosing issues, upgrading systems, and providing ongoing IT support.
Education
MBA - Business Administration
University of Phoenix
01-2017
B.S. - Information Systems & Cybersecurity
ITT Technical Institute
01-2015
B.S. - Computer Science
Catholic University of Santo Domingo
01-1999
Skills
- Networking: Cisco IOS, Meraki, VPN, VLANs, TCP/IP, firewall administration, Zero Trust
- Infrastructure: Windows Server 2008-2022, AD, DNS/DHCP, GPO, VMware, Hyper-V, Azure
- Multi-factor authentication
- Backup & Recovery: SkyKick Cloud Backup, GOODWILL-BDR1
- IT strategy
- ITIL framework
- Remote monitoring
- Network refreshes
- Network protocols Systems: Windows Server, VMware, Hyper-V, Linux, Proxmox
- SkyKick backup
- Threat assessment
- Tools: ScreenConnect, ADP, Paycom, ReQlogic, KnowBe4, RingByName, Verizon Business Portal, IT Glue, Smartsheet, Flowcode, Orbund, Xtremelabs, Toast,
- Document management
Certification
VCP 6.0 VMware Certified Professional, MCITP / MCTS / CCNA, AWS Boot Camp (2022), Azure AZ-900 / AZ-104 Boot Camp (2022), CEH Boot Camp (2022), CISSP Boot Camp (2022), Novell Network Certification, Management of Small & Medium Enterprises (INFOTEP)
Languages
- English & Spanish (Fluent)
- Languages: English & Spanish (Fluent)
Timeline
Additional Enterprise Expirience
Goodwill Industries of South Florida
01.2015 - 01.2026
Network Administrator & Help Desk Manager
Goodwill Industries of South Florida
03.2012 - Current
Windows Server Administrator
Digiport Data Center
09.2011 - 01.2012
IT Services & Management Consultant
11.2007 - 05.2010
MBA - Business Administration
University of Phoenix
B.S. - Information Systems & Cybersecurity
ITT Technical Institute
B.S. - Computer Science
Catholic University of Santo Domingo