Systems Administrator

Systems AdministratorLocation: Dahlgren, VA / San Diego, CA / Norfolk, VA (3 different locations) *Clearance: Active Secret w/ Polygraph needed to apply * Company Overview: Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government. Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission. Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation's toughest and most secure problems. If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don't look any further than Cornerstone Defense.Benefits Overview: Cornerstone Defense offers a very comprehensive benefits package including, but not limited to: Medical, Dental and Vision Plans * Generous PTO Policy * 401(k) * HSA and FSA options * Life and Disability Insurance * Tuition Reimbursement and Training * Perks at Work Discount Program * Referral Program * Leads Generation Program * CollegeAmerica 529 * Fitness Reimbursement Program * Travel Assistance * Norton Lifelock Benefit Solutions * Life Planning Financial & Legal Services *Network InfrastructureNetworking concepts, protocols, and security methodologiesLAN/WAN architecture and pathwaysBandwidth management principlesNetwork traffic flow (TCP/IP, OSI, ITIL)Performance tuning tools and techniquesRemote access technologiesVPN securityNetwork protocols (TCP/IP, DHCP, DNS, directory services)Common tools (ping, traceroute, nslookup)File system implementations (NTFS, FAT, EXT)Virtualization technologies and VM managementSecurity ExpertiseIT security principles (firewalls, DMZs, encryption)Network security architecture (topology, protocols, defense-in-depth)Cybersecurity principles, threats, and vulnerabilitiesNational/international cybersecurity laws, regulations, and policiesOrganizational IT security policies (account management, access control)Data security standards (PII, PCI, PHI)System administration, network, and OS hardening techniquesSoftware-based protection tools (firewalls, antivirus, anti-spyware)Transmission methods (Bluetooth, RFID, IR, Wi-Fi) and jamming techniquesSystem AdministrationServer and client operating systemsSystems administration concepts and best practicesEnterprise IT architectureDiagnostic tools and fault identificationOS command line utilities (ipconfig, netstat, dir, nbtstat)System maintenance procedures (cleaning, disk checks, reboots, backups)Cloud ComputingService models (SaaS, IaaS, PaaS)Deployment models (private, public, hybrid)Cloud security strategy and architecture