Chris Silva
IT Manager and Senior Network Engineer
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About
IT Manager and Senior Network Engineer with over 22 years of progressive experience leading IT operations, network engineering, cybersecurity, and systems administration across enterprise, military, and global environments. Proven ability to manage teams, modernize infrastructure, secure mission-critical systems, and deliver reliable IT services at scale. Adept at bridging executive leadership with technical execution, driving operational excellence, and implementing solutions that improve performance, security, and business outcomes.
Recognized for strong leadership, adaptability, and the ability to maintain positive rapport with teams and stakeholders.
Experience
IT Manager / IT Operations Supervisor / Network Engineer at GDC Technics Ltd (2011-09 – 2015-06)
Led IT operations for a global aviation engineering and completions firm, reporting directly to the CIO and managing a team of nine IT professionals across helpdesk, systems, and development roles.
- Directed daily IT operations, infrastructure planning, and department performance reporting.
- Supervised IT staff, conducted performance evaluations, and provided mentorship and training.
- Coordinated with executive leadership, engineering, HR, and security teams to align IT initiatives with business needs.
- Managed enterprise firewalls, routers, switches, VPNs, WLAN, and remote access systems.
- Administered Active Directory, DNS, DHCP, group policies, and multi-platform user environments.
- Oversaw VMware and Hyper-V environments; deployed and maintained physical and virtual servers.
- Maintained surveillance systems and access control (DNA Fusion).
- Provided application support, end-user training, and technical recommendations to leadership.
Network Technician at RX Technology (2011-02 – 2011-05)
Provided network engineering and systems support for small and mid-size businesses across the San Antonio area.
- Installed and supported Cisco PIX, WatchGuard, SonicWall, and Cyberoam firewalls.
- Built and maintained Windows/Linux servers and virtual environments (Hyper-V, VirtualBox, VMware).
- Managed AD accounts, group policies, DNS/DHCP, and remote access systems.
- Created scripts and automation for client environments.
- Delivered onsite and remote support, troubleshooting, and user training.
Network Security Engineer II at Mystikal Solutions (2009-08 – 2010-05)
Supported Army MEDCOM networks worldwide, ensuring secure access, compliance, and operational readiness.
- Managed Cisco ASA/PIX/FWSM firewalls, Juniper VPN appliances, and Bluecoat web filters.
- Conducted security audits, access reviews, and compliance checks under DoD/IA policies.
- Supported NOSC operations and remote-site administrators.
- Managed IP space, routing, and firewall configurations across global medical facilities.
Network Engineer II at Logistics Management Resources (LMR) (2005-12 – 2009-07)
Supported the US Army Reserve across multiple states.
- Managed 85+ Cisco routers and 200+ switches across TX, NM, OK, and CO.
- Performed IOS upgrades, routing changes, and WAN/LAN optimization.
- Managed DHCP servers and IP scopes.
- Troubleshot outages, replaced failed hardware, and ensured network uptime.
Systems Administrator at West Corporation (2005-06 – 2005-12)
Managed 20+ servers supporting payroll operations for 32,000+ employees.
- Supported Kronos Workforce Central and PeopleSoft environments.
- Maintained job processes, security accounts, pay rules, and time clocks.
- Provided national/international remote support and participated in software upgrades.
Network Consultant at Technologic (2005-02 – 2005-04)
Provided network and desktop support for SMB clients.
- Built and maintained servers, AD environments, and remote access systems.
- Delivered 24/7 support and user training.
Senior Network Administrator at Command Technology Inc. (2001-10 – 2004-01)
Led a team of 15 technicians supporting NIPR/SIPR networks with 1,500+ users.
- Managed Windows 2000 servers, security, and daily operations.
- Developed network applications, maintained DoD compliance, and trained users.
Computer Technician II at Northside ISD (2001-04 – 2001-10)
- Supported Microsoft, Mac, Novell, and Linux systems.
- Resolved incidents via HEAT ticketing, installed software, and maintained hardware.
Network/Systems Administrator at United States Air Force (1993-11 – 2001-03)
- Supported NT servers, SQL, Exchange, RAS, and LAN/WAN environments.
- Conducted COMSEC/OPSEC training and managed $200K+ in IT assets.
- Built peer-to-peer networks and inter-base data links.
Education
Associate of Applied Science in Small Business/Entrepreneurship – Trinity Valley Community College
Associate of Applied Science in Electronic Technology – Trinity Valley Community College
