Senior Windows Administrator
Booz Allen Hamilton
Maintained 75 Windows 2003/2008 servers ensuring 99.9% or better uptime.•Evaluated, monitored and enhanced IT infrastructure with an emphasis on availability, reliability, scalability, security, data confidentiality and system integrity.•Ensured that all server hardware, operating systems, software and procedures aligned with organizational standards and strategic business plans.•Managed the overall administration of Windows System applications.•Performed various troubleshooting and maintenance operations in Windows Server environments.•Increased team productivity and automated repetitive tasks by using batch files, PowerShell, VBScript and WMI.•Provided on-site enhancements, upgrades, and support to clients for business-critical systems and network systems.•Collaborated with clients to plan infrastructure expansion and upgrades based on business goals and assessments of existing technologies•Built and provisioned servers and PCs. •Installed and configured operating systems, application software, and antivirus and security tools.•Acted as escalation point for troubleshooting advanced network/systems issues; consistently earned a 100% issue-resolution score by providing excellent service to internal and external customers.•Trained employees across multiple departments on network operations including login procedures, network management software, permissions, printing issues, security and use of software.•Responsible for the daily operations and maintenance of Windows 2003\2008 server’s client computers, exchange mail servers, and remote access services for network users.•Maintained all server-related configurations ensuring servers were baselined, and patched IAW United States Cyber Command (USCYBERCOM) 21-day suspense.•Provided technical information to the security office in regards to network vulnerabilities, system accreditation, and maintenance of system accreditation packages.