Systems Administrator

Title: Systems Administrator
Location: 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 *

• Four (4) years of system management experience

Network Infrastructure

• Networking concepts, protocols, and security methodologies
• LAN/WAN architecture and pathways
• Bandwidth management principles
• Network traffic flow (TCP/IP, OSI, ITIL)
• Performance tuning tools and techniques
• Remote access technologies
• VPN security
• Network protocols (TCP/IP, DHCP, DNS, directory services)
• Common tools (ping, traceroute, nslookup)
• File system implementations (NTFS, FAT, EXT)
• Virtualization technologies and VM management

Security Expertise

• IT security principles (firewalls, DMZs, encryption)
• Network security architecture (topology, protocols, defense-in-depth)
• Cybersecurity principles, threats, and vulnerabilities
• National/international cybersecurity laws, regulations, and policies
• Organizational IT security policies (