It Support System Administrator

VINNY CAO

*********@*****.*** 657-***-**** Orange CA 92707

IT SUPPORT/SYSTEM ADMINISTRATOR

SUMMARY OF QUALIFICATIONS

I am an IT professional with 15+ years of successfully with strong diversified experience in IT hands-on expertise. Proven track record in developing and managing IT systems and applications, with additional strong background in academic.

CORE COMPETENCENCIES

IT Management/ Data Analyst IT network security

System Network design and Integration IT Trainer

PROFESSIONAL EXPERIENCE

U.S. Department of State – U.S. Mission Vietnam 02/2006 – 02/2025

Senior IT Support/ System Administrator

Managed a complex network infrastructure, supporting over 30 agencies with 2,000+ workstations, 100+ servers across multiple remote locations. Provided IT services for software, hardware, networks connection for all users.

Managed AD Domain, Azure and SQL Server 2022 Administrator at post, installed and maintained applications.

Led all IT SBU (Sensitive but Unclassified) projects at U.S. Mission, including vendor bidding, network renovation/upgrades, procurement, and technical justifications.

Deployed secure internet access for the American Center using Antamedia Internet Cafe software.

Designed and applied Group Policy for workstations and configured Cisco Umbrella for non-enterprise networks to enhance security and saving costs.

Provided technical support for the Consular network, including troubleshooting, desktop maintenance, and application training.

Managed backup systems (Backup Exec, Avamar Backup) with daily, weekly, and monthly maintenance routines.

Integrated multi-factor authentication (MFA) using MS Authenticator and Okta, enhancing remote user login security.

Led local infrastructure technical support for high-profile U.S. Government events, including 4 U.S. Presidential and APEC visits. Served as the technical lead for network infrastructure and mission-critical systems supporting VIP delegations, including POTUS, VPOTUS, and SECSTATE.

Served as an Adjunct Faculty instructor at the Department of State Foreign Service Institute (Washington), delivered training course to users such as Network security/protection and Office 365 applications (MS Office, SharePoint, Power App, Power Automate, Power BI..).

Designed and managed A/V technology for Embassy meeting rooms, including video conferencing solutions like Cisco Codec Plus, Webex, Zoom, Teams, and Google Meet.

Developed apps and automated workflows for U.S. Mission business processes using Power Automate.

Manage the network/SIEM appliances using Splunk.

HIGHLIGHTS

Successfully completed the full migration of the on-premises system to the cloud environment, MS FastTrack for

Office 365 services migration, involving the transition from physical servers to virtualized infrastructure.

Enhance network security by transitioning from Cisco ASA to Palo Alto firewalls. Implement Cisco Umbrella for non-enterprise networks and deploy tools for network performance monitoring.

Successfully led IT teams in 2018 to deploy a robust network infrastructure for the U.S. APEC delegations, delivering 60 internet connections and 200 IDD lines across seven sites nationwide within a tight timeframe.

Successfully led data migration from Contact Database to CRM and deployed offline check-in for the new CRM system.

Achievements:

U.S. Government Meritorious Honor Award for exceptional performance as a systems/network engineer in the Information System Center that resulted in enhanced efficiency and reduce cost to Department of State customers.

U.S. Government Meritorious Honor Award for innovative solution in the redesign of Dedicated Internet Network, and exceptional effort in the successful renovate WIFI system.

U.S. Government Meritorious Honor Award for Dedication on taking more responsibilities to ensure continuity in service and providing outstanding support to network security and performance.

U.S. Government rewarded a Franklin Award in recognition of outstanding performance as an Adjunct Faculty

Instructor for Washington SAIT/Business Technology Division.

U.S. Department of State - Foreign Service Institute 12/2021 – 10/2024

Trainer

Served as an Adjunct Faculty member at the Washington Foreign Service Institute, teaching network protection and Office 365 applications.

Training application of AI in Government, AI models (Statechat, Gemini, ChatGPT, Claude).

Shell Global 08/2000 – 01/2006

Senior Systems Network/DBA Engineer/ Data Analyst

Managed and administered Windows NT, MS Exchange Server, UNIX, and Novell NetWare systems.

Engineered and maintained network infrastructure.

Conducted business analysis to improve IT processes and systems.

Administered Oracle and SQL Server databases.

Supported Sun Systems and ERP applications.

Leader Software project for MMIS(Marketing Management Information System) to provide Sales, Marketing, Customer management to 50+ regional Shell Distributors.

Built automate report system to extract data from multiple databases (Oracle, SQL, MS A) for Salesrep, Marketing and business management teams.

EDUCATION AND CREDENTIAL

CCNA Security+

CCNP Azure Administrator

Bachelor of Computer Science

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