Systems Engineer Senior

Alfred “Skeeter” Leake

Email: **************@*****.*** Phone: 443-***-****

EXECUTIVE SUMMARY

Senior Systems Engineer with TS/SCI Clearance and 20+ years of experience in systems administration, including, but not limited to, analyzing, designing, installing, maintaining, and repairing hardware, software, peripherals, and networks. Detail-oriented, reliable, and results-driven professional able to perform under pressure, with an exceptional ability to collaborate effectively with all levels of a team or work independently.

SKILLS SUMMARY

• Superior troubleshooting and technical support capabilities with server, desktop, applications, and network connectivity.

• VMware vSphere 7.0, ESXi host, and vCenter, Nutanix configuration and management.

• Server 2012R2 installation, Server 2016, Server 2019 configuration, maintenance.

• MS Server OS, MS RDSP, MS SCCM, MS WSUS server, MS Hyper-V, MS Desktop OS, MS Office, VMware, Nutanix, Enterprise AV, Enterprise Data Backup.

• Active Directory systems management, GPO configuration, and PKI implementation.

• Tenable Nessus ACAS security scanning and asset vulnerability remediation.

• Microsoft Vulnerability Remediation.

• Orion SolarWinds Network Monitoring.

WORK HISTORY

Senior Systems Solutions Engineer October 2020 – November 2024 Department of Defense - QBase/Tyto Athene

Fort Meade, Maryland

• Provided oversight and direction for projects and daily operations of the Evaluation Validation Infrastructure Facility lab (EVIF).

• Built three (3) domain Zero Trust environment in the EVIF vital for testing prior to production. deployment.

• Created a pre-production virtual server environment to test CyberArk, Quest, and Axway applications prior to deployment in the production environment.

• Collaborated with the ISSM team to prepare EVIF environment for ATO (Authorized to Operate) accreditation. Performed STIG validation, IAVM validation, and Trellix End Point Security validation resulting in the awarding of a 3- year ATO.

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• Remediate NIPR/SIPR production environment transforming Information Assurance security posture from 65% unfavorable status to 95% favorable status.

• Migrated production VMware ESXi hosts and Nessus ACAS scanners from legacy Dell platform to HPE Nutanix production environment reducing licensing costs.

• Upgraded production VMware vCenters server, ESXi Hosts, and ACAS scanners to latest version. Senior Systems Solutions Engineer April 2017–October 2020 Department of Defense – Chameleon Integrated Services Fort Meade, Maryland

• Migrated legacy physical servers and Microsoft Hype-V servers to VMware environment.

• Supported VMWare 6.7 environment on Nutanix platform for DoD_Net project Apply STIG settings for VMware and Windows systems.

• Administered DoD_Net Active Directory environments.

• Configured and performed Nessus ACAS vulnerability scans on DoD_Net environment for Information Assurance posture.

• Created Gold Images for Windows Server 2019, Server 2016, Windows Server 2012R2, and Windows 10 in the VMware environment. Deployed monthly patches, performed Nessus ACAS vulnerability scans, remediate findings to maintain current up-to-date images and templates.

• Configure HYCU backup system to maintain Disaster Recovery posture on EVIF assets.

• Deployed Microsoft monthly security patches using SCCM, performed ACAS vulnerability scans, remediated findings to maintain up-to-date Security Posture

• Obtained and installed test software, performed ACAS scans, and evaluated security posture to report to the Information Assurance team for deployment decision. Senior Systems Solutions Engineer September 2015– April 2017 Department of Defense – Hewlett Packard

Fort Meade, Maryland

• Administered, configured, and managed site EVIF lab network environment for system testing and evaluation (Physical/Virtual systems).

• Installed, configured, and remediated IVAM and STIG security findings for Server 2008 R2 and Server 2012 R2 builds for DISA replacement production servers.

• Implemented KMS environment for Microsoft activation.

• Implemented PKI token authentication system.

• Hardened EVIF Active Directory environment GPO configurations, PKI Authentication, and Administrator rights assignments.

• Configured and replaced existing end-of-life hardware in EVIF lab environment with VMware platform to facilitate the Life Cycle Replacement Project. Alfred “Skeeter” Leake

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• Worked with Facility Security Officer and DISA Information Assurance security team to validate EVIF lab systems for security compliance to attain 3-year ATO.

• Tenable Nexxus ACAS scanner installation and configuration – Configured security scanner to scan lab assets. Generated and analyzed reports to perform server remediation.

• Completed application security evaluations for various projects. Senior Systems Solutions Engineer October 2014 – August 2015 Department of Defense - Nova-Dine, Inc

Fort Meade, Maryland

• Administered, configured, and managed EVIF lab network environments for system testing and evaluation (Physical/Virtual systems).

• Installed and configured WildPackets Network Analyzer.

• Installed and configured SolarWinds network monitor for use in EVIF lab.

• Investigated DISA command enterprise server room (CER) production environment, researched server system information, determined server dependencies, evaluated storage constraints, communicated with Server Operations and Application Administrators, and coordinated appropriate measures to capture DISA CER production systems using Acronis Imaging capabilities and Microsoft Hyper-V. Deployed captured systems to EVIF Lab sandbox environment as virtual systems.

• Configured ACAS Network Security scanner to scan EVIF Lab systems. Generated and analyzed reports to perform server vulnerability remediation for security compliance. Systems Administrator February 2012 – October 2014 Department of Defense– Dexisive, Inc.

Fort Meade, Maryland

• Installed, configured, and remediated IVAM and STIG security findings for Server 2008 R2 and Server 2003 R2 builds for DISA replacement production servers.

• Configured and managed 3-site EVIF lab network and manage two sandbox environments for system testing and evaluation (Physical/Virtual systems)

• Lead Engineer for testing/evaluation/configuration of Acronis ABR product designed for DISA Disaster Recovery project.

• Managed, maintained, and updated Acronis master image for use in deploying DISA systems.

• Installed, updated, and maintained Vulnerability Management System for existing and new DISA systems to attain 3-year ATO.

• Acronis Installation, Configuration and User documentation

• EVIF ATO project – Worked with FSO and DISA IA security to validate EVIF lab systems for security compliance.

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Systems Administrator October 2004 – February 2012 Active Network, Clarksburg, Maryland

• Managed enterprise-wide Windows network with 65+ users.

• Installed, configured, and maintained 35+ HP servers, maintained 65+ staff PCs.

• Installed and configured Nortel staff phones.

• Installed, configured, supported, and maintained Blackberry Enterprise Server for 65+ users.

• Maintained Windows Server 2003 and 2008 Virtual instances on XEN OS on Linux Platform.

• Installed, configured, and maintained Microsoft WSUS server.

• Installed, configured, and maintained SiteScope monitoring system.

• Performed Active Directory Migration from Windows NT 4.0 to Windows 2008 for integration with corporate network.

• Provided technical support for staff of 65+ users.

• Supported applications for company projects.

• Installed, configured, maintained office data backups.

• Provided technical support for Capitol Visitors Center application.

• Planned, coordinated, and completed Network IP reconfiguration.

• Planned and coordinated the migration of Exchange 5.5 to Exchange 2010 environment.

• Executed company project UAT application updates.

• Performed office IT requisitions.

Systems Administrator September 2000 – October 2004 Accelera Corporation

Baltimore, Maryland

• Managed enterprise-wide Windows network at 4 locations with 85+ users.

• Installed, configured, and maintained 25+ servers, maintained 85+ staff PCs.

• Managed multi-site Exchange 5.5 environment.

• Managed NetScreen Firewall/VPN.

• Planned, configured, and installed enterprise-wide Anti-Virus solution.

• Provided technical support for multi-location and remote staff.

• Supported proprietary applications.

• Performed office data backups.

• Installed, configured, and maintained QA environment.

• Instituted software license program.

• Performed office IT requisitions.

• Planned, coordinated, and completed network IP reconfiguration. Alfred “Skeeter” Leake

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EDUCATION AND CERTIFICATIONS

• Security+ Certification

• Nutanix Certified Professional

• Microsoft Certified Systems Engineer

• Microsoft Windows 10 Certification

• ITIL Certification

• Computer Learning Center – Programming

• University of Maryland – Engineering

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