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IT Infrastructure Leader and Project Coordinator

Location:
Round Rock, TX
Posted:
February 26, 2026

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Resume:

Page * *

Richard T. Rizzuto

Systems Administrator / Project Coordinator

***********@*****.*** • 504-***-****

LinkedIn • Austin, TX (78717)

Qualifications Summary

● Technically astute, highly analytical, and strategic information technology leader with strong background in managing complex IT environments, implementing cutting-edge technologies, and driving digital transformation to accomplish goals, create business value, and increase operational efficiency.

● Strategic leader with commendable expertise in leading technical direction and execution of IT infrastructure, including hardware, software, networks, and servers while maintaining systems, applications, and databases to ensure availability and reliable performance.

● Proven track record of success in forecasting/managing budgets, leading teams, and fostering strong relationships with internal and external stakeholders.

● Possess deep understanding of infrastructure and software development, with a passion for leveraging latest technology/tools for excellence and organizational growth. Areas of Expertise

Data Security Technical Operations Management Network Infrastructure Data Visualization Application Development & Installation Systems Administration Endpoint Administration Configuration Administration Cyber Security Information Security Enterprise Integration & Streaming Application Security Data Encryption Risk Assessment & Mitigation Data Architecture & Modelling Team Building & Leadership Regulatory Compliance Cross-functional Collaboration Strategic Planning & Execution Root Cause Analysis Process Improvement & Automation Career Experience

Systems Administrator, Signature Science LLC Austin, TX 10/2024 – 10/2025 Serve as team member comprising five employees to assist and support planning, design, installation, implementation, and maintenance of all IT infrastructure services. Interim Secret Clearence.

• Configure, operate, and maintain server and network systems to satisfy requirements.

• Maintain Active Directory Domain Services, DNS, DHCP services.

• Document all changes and solutions to problems in a centralized knowledge base.

• Responsible for migration windows 10 to windows 11 employing SCCM and Software Center Upgrade.

• Actively participated in strategic and tactical patch and vulnerability management activities

• Participated in remediation services to infrastructure teams based on vulnerability and policy compliance scans

• Assist in the development of an end-to-end vulnerability process, including reporting of vulnerabilities and escalation of critical vulnerabilities

• Manage/Configure Ivanti Application Control Agent

• Administer Veeam data backup server endpoints

• Hyper-V Administration

• Experience with ticket tracking with tools such as ServiceNow/Remedy Systems Administrator Migration Engineer, eTeam Incorporated, Austin, TX 08/2022 – 09/2024 Serve as team member of Laboratory QC Engineers for ICU Medical Department Staff, comprising five employees. Leverage project management competencies to deliver projects within scope while ensuring completion within targeted deadlines. Administer security access to laboratory IT systems in compliance with company policy/procedure. Draft documentation for modifications to software installations while complying with corporate standards via installing procedures by standard manufacturers. Collaborate with corporate infrastructure to develop test and development networks. Perform security-related Preventive Maintenance (PM) Work Orders for laboratory IT systems on a regular basis. Page 2 4

● Deployed server-based technologies, including replacement of some hardware-based technologies with virtualization to reduce laboratory workstation inventory by determining, strategizing, and evaluating tasks for cross-functional projects.

● Designed group assignments, corresponding to various laboratory department functions, and enhanced data security by transforming local permissions of laboratory applications.

● Handled data mining requests from lab IT systems in various formats, including Crystal reports or Excel file extractions.

● Manage laboratories Linux file server (Ubuntu Server/Samba). Print custom reports from test instruments.

● Tested/qualified workstation installations via FDA criteria by directing a team of five QC Engineers during deployment.

● Migrated local security accounts to Active Directory and leveraged 'Veeam' to develop and deploy backup plans.

● Update, validate and test Sentinel One configurations on upgraded deployed workstations

● Remediate potential breaches and exploited vulnerabilities for which a patch or mitigation was available but not yet applied to newly deployed software. Document and post findings.

● Recommended improvements in security systems and procedures for laboratory instruments (physical/software).

● Review security authorization documentation of new workstation deployments ensuring that appropriate security guide lines were used during deployment and selected security controls where appropriate for system categorization.

● Review vulnerability scan reports and risk assessments on internal laboratory instruments to identify and mitigate identified risk and vulnerabilities.

● Remediate potential breaches and exploited vulnerabilities for which a patch or mitigation was available but not yet applied to newly deployed software. Document and post findings. Implement formal patching policies and enforcement mechanisms to ensure necessary updates take place.

● Actively participates in strategic and tactical patch and vulnerability management activities

● Resolved configuration issues by collaborating with application providers and improved processes by facilitating support application modifications.

● Transitioned laboratory workstations from Windows 7 to Windows 10.

● Document known issues with laboratory applications. Work with vendors to resolve or apply workarounds and record findings. Document known issues with laboratory applications. Work with vendors (i.e (PerkinElmer, Fisher Scientific) to resolve or apply workarounds and record findings. Sr. Systems Administrator Tier II, G2 Innovative Solutions, Austin, TX 2016 – 2022 Maintained 650 servers and 20 Citrix Servers by providing expertise as team member of Veterans Benefits Administration IT Department Staff comprising eight employees. Administered 450 user (DevOps) computer network successfully for Veterans Benefits Administration, Veterans Benefits Administration Central Office Personnel (Washington), and Veterans Benefits Administration Administrative and Loan Accounting Center (ALAC). Demonstrated strong verbal/written communication skills, as well as the ability to explain/document technical operations. Tracked and documented multiple network events accurately. Interact successfully with a diverse range of business, operational, and technical personnel. Provided support of department functions from previous contracted positions. Conducted system maintenance operations, including backup, recovery, and file maintenance. Ensured scheduling, installation, and testing of upgrades system software.

● Directed procedure development and installed/configured system updates, including new hardware and software.

● Developed troubleshooting processes, conducted research, and recommended solutions for systematic problems, as well as provided support and escalated unsolved technical issues.

● Performed system performance optimization in VMWare Hypervisor and Citrix XenDesktop environments and configured Citrix Xendesktop environment for test/development network. Handled data mining requests from lab IT systems in various formats, including Crystal reports or Excel file extractions.

● Streamlined and upgraded VMWare Hypervisor and Citrix infrastructure as well as oversaw Citrix environment IA security patch remediation. Streamlined and upgraded VMWare Hypervisor and Citrix infrastructure as well as oversaw Citrix environment IA security patch remediation.

● Responsible for patching assets in development, test and production environments while ensuring quality and minimal impact

● Participate in remediation services to infrastructure teams based on vulnerability and policy compliance scans

● Participated in proactively developing patch and vulnerability management procedures and processes in conjunction with business and IT teams

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● Negotiated, planed and manage patch activities Assess application version updates and report findings to the architecture review board to be approved.

● Collaborate with infrastructure and application owners on security fixes or patch management validation monthly.

● Perform Manual Review of Privilege Management. Create/Deploy PKI Certs for secure file shares. Install and Configure Active Directory Certificate Services.

● Managed, resolved, and troubleshoot VPN environment and PKI issues.

● Employed Big Fix to resolve remote customer patch update issues

● Monitored Network system logs and reports to determine physical threats to network using McAfee DLP HIDs and IDs.

● Assess application version updates and report findings to the architecture review board to be approved.

● Supervised SCCM and Active Directory software metering, endpoint protection, device collections, user state migration, and user accounts.

● Create/Deploy PKI Certs for secure file shares.

● Managed, resolved, and troubleshoot VPN environment and PKI issues. Sr. Systems Administrator Tier II/III, Acentia, Austin, TX 2012 – 2016 Led team of network administrators responsible for application security patch remediation of network workstations and virtual machines. Managed 450 user (DevOps) computer network successfully. Conducted operating system and program installation, configuration adjustments, and maintenance. Offered services as team lead for deployment of workstation refresh and developing Workstation/Server documentation of workflow. Troubleshooting post-deployment challenges and modified deployment methods when required. Audited group policy with department employees biannually.

● Developed standardized Citrix desktop image templates, resulting in being used for numerous department configurations.

● Built, tested, configured, and troubleshoot Windows Server 2003/2008/2012 on HP and Dell Blade servers.

● Streamlined installation operations and troubleshooting strategies to resolve common issues by updating current documentation to reflect changed procedures.

● Migrated Hyper-V environment to VMware and relocated Citrix Xen Desktop environment while leveraging Symantec Backup Exec. to enable systems backup.

● Executed regular system maintenance on VMware and Citrix environments, including software upgrades, operating system updates, and patches.

● Installed workstations by redesigning deployment process used by IT administrators & transitioned drive encryption to bit locker. Troubleshoot/Repair bit locker issues.

● Spearheaded operating systems deployment, change management, performance optimization, and hardware upgrades.

● Troubleshooting, installed, repaired, and maintained Symantec Endpoint encryption on user desktop and laptop drives.

● Plan and configure LAN environment by implementing VLAN infrastructure. eVenture 2009 -2011

Network Administrator Tier II, III (Department of Defense) New Orleans, Louisiana Team member of the Navy Shared Services IT Department Staff comprised of 6 employees maintaining 650 servers and 20 Citrix Servers. Responsible for daily administration of 1500 Citrix XenApp users accessing published resources on these servers.

● Monitored EMC SolarWinds experience (Server Monitoring Software) for changes in VMware ESX Hosts.

● Managed 1500 users accessing published resources in Citrix.

● Built and tested windows 2003 and windows 2008 servers from scratch.

● Build and configure Citrix environment for Xen App use. Create published COTS apps and user rights.

● Troubleshoot COTS applications after version updates.

● Team lead migrating AD users, applications from 2003 to 2008 environment.

● Monitored 650 virtual server environments with mirrored site failover and disaster recovery process.

● Identified and remediate security patches for supported servers in VMWare environment.

• Responsible for STIG remediation against servers and Citrix environment.

• Provided documentation and security remediations on servers, and assured systems were functioning at the optimum level after security controls were put in place. Page 4 4

Education

Bachelor of Science in Psychology/ Business Administration University of Louisiana Lafayette, LA Certifications

Dale Carnegie Certificate Course Effective Communications & Human Relations Microsoft Certified Systems Engineer

Microsoft Certified Professional

Comp TIA Security+ (601)

SkillSoft Learning Certificates: Comp TIA Network+, CySA+CE, CASP+CE, Linux, PowerShell, CCNA, Microsoft Azure Administrator, Citrix 7.6

Technical Proficiencies

MS Office Suite VMWare Hypervisor Citrix Xendesktop SCCM Active Directory Symantec Endpoint Encryption Symantec Backup Exec Citrix XenApp COTS Tivoli backup Microsoft Visio Project software Virtual Private Network



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