*Purpose* - Provide systems and network and administration support for internal and client systems. *Essential Functions* - Deploy and maintain servers, workstations and networking equipment in accordance with regulations and requirements. - Provide direct end-user support. - Provide skilled analyses to determine future hardware/software requirements. Maximize systems and network availability. - Ensure compliance with System Security Plans and other organizational requirements. - Other related functions as assigned to include training to internal and external customers. *Required qualifications* - 2-3 yrs with wtih Linux systems admin/common automation/configuration mgmt/deployment tools/enterprise network systems monitoring. - Knowledge of Microsoft Windows Active Directory admin. - Understanding and working skills of common network services protocols(SMTP,IMAP,POP, DHCP,DNS,LDAP,Active Directory,NFS,CIFS, SSL). - 2 yrs demonstrated ability with scalable Windows/Linux network-based deployments. - 2 yrs demonstrated ability with scalable Zimbra/Postfix deployments. - Specific experience deploying/configuring/managing Red Hat Enterprise Linux or CentOS. - Ability to deploy/maintain telecommunications/networking equip - WiFi routers. - Able to work under pressure. - Ability to work independently with sensitive and confidential information. - Experience integrating Windows/Windows Server/varied Linux environments. Experience w/ Puppet/Nagios/Cacti for configuration mgmt/network monitoring/capacity planning. - Experience with BackupPC and rsync. - Experience w/ Linux kernel configuration. - Basic programming experience, to include Linux shell scripting, Perl, Python, SQL, C, C++, PHP/HTML. - Experience with virtual computing environments, specifically VMware and VirualBox. - Experience with continuous network and host-based security monitoring. Experience with classified systems security implementation. *Preferred Qualifications* - Bachelor's degree in computer science/IT/related/2+ years of experience. - More than the required experience in managing Linux systems/Microsoft Windows Active Directory