Senior System Administrator Resume Profile Washington, DC. - Hire IT People

SUMMARY

Analytical detail oriented professional and team leader with over 17 years of progressive experience in systems engineering, system administration, systems management and network systems planning and design.
Outstanding technical knowledge of Solaris, Red Hat and Windows operating systems, including design, installation, implementation, maintenance, configuration, testing and security.

Work Experience

Confidential

Senior System Engineer/Senior System Administrator/Team Lead

System Engineering: Developed the design and maintenance of Linux High Performance Clusters that included configuration, networking and storage. Developed procedures for testing of new servers, switches and workstations in a developmental/test environment. Designed server configuration for new Red Hat Linux servers to replace legacy Solaris and IRIX servers. Implemented software testing and documentation criteria for new/updated COTS and GOTS products. Provide server requirements for new projects and developed configuration for application virtualization using thin clients.
System Administration: Perform system administration on Solaris, Red Hat Linux and Windows servers. Provide end user support for various COTS and GOTS products on Unix, Linux and Windows PC client platforms. Building, configuration and maintenance of Oracle, HP and Dell servers running Solaris and Red Hat Enterprise Linux. System administration of Windows 2003/2008 servers, RAID and SAN storage, system patching and system backups/snapshots. Provide DNS, LDAP, Flexlm license management, Active Directory and cluster server support. Responsibilities also include, hardware troubleshooting and replacement of parts on servers and client workstations.
System Security: Act as system IAO Information Assurance Officer for all Unix/Linux based servers and workstations. Responsible for securing new servers and insuring the security posture of existing servers are maintained according to DoD regulations.

Confidential

Senior Unix Administrator

Performed daily system administration tasks in support of Unix based COTS product on Solaris SunFire systems. Installed system upgrades and patches. Provided server and network troubleshooting and monitoring. Configured and maintained system security for auditing/monitoring purposes. Provide DNS, NIS and mail administration. Support of various web based applications, system tuning for optimal performance. Performed system backup and recovery on all systems. Reported to Program Manager on system status, network availability and hardware performance issues.

Confidential

Senior Unix Administrator/Unix Team Lead

Team Leader for Solaris UNIX Team, provided technical leadership to junior team members. Performed Solaris System administration including NIS domain maintenance and administration, DNS administration, installation of system software and patches. Troubleshot network connectivity issues, support workstation clients, install system hardware, create and maintain user accounts, maintain UNIX sendmail, perform system backup and recovery, diagnose router, communication, TCP/IP connectivity issues and shell scripting. Performed function of system security administrator. Troubleshot system hardware problems to successful resolution. Also maintained budget for team training and hardware procurement.