Systems Administrator

Cornerstone Defense LLC; Dahlgren (VA); On-site; USD 70,000 - 90,000; Full time

Benefits offered by this job

Medical, dental and vision plans

Generous PTO policy

401(k)

Job summary

Cornerstone Defense is seeking a Systems Administrator to support operations across Dahlgren, San Diego, and Norfolk locations. The position requires an Active Secret clearance with polygraph to apply and focuses on maintaining secure network and system infrastructures.

Candidates should have at least four years of system management experience, with strong knowledge of networking, virtualization, and IT security practices to protect critical government systems.

Qualifications

• Four (4) years of system management experience.

Skills

Networking concepts

LAN/WAN

Remote access

VPN security

TCP/IP

Virtualization

Tools

Virtualization (VM)

Job description

Title: Systems Administrator

Location: Dahlgren, VA / San Diego, CA / Norfolk, VA (3 different locations)

Clearance: Active Secret w/ Polygraph needed to apply

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

• 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

Qualifications

• Four (4) years of system management experience

Network Infrastructure

• Networking concepts, protocols, and security methodologies
• LAN/WAN architecture and pathways
• Bandwidthmanagement principles
• Network trafficflow (TCP/IP, OSI, ITIL)
• Performance tuningtools 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 securitypolicies (account management, access control)
• Data security standards (PII, PCI, PHI)
• System administration, network, and OS hardening techniques
• Software-based protection tools (firewalls, antivirus, anti-spyware)
• Transmission methods (Bluetooth, RFID, IR, Wi-Fi) and jamming techniques

System Administration

• Server and client operating systems
• Systems administration concepts and best practices
• Enterprise IT architecture
• Diagnostic tools and fault identification
• OS command line utilities (ipconfig, netstat, dir, nbtstat)
• System maintenance procedures (cleaning, disk checks, reboots, backups)

Cloud Computing

• Service models (SaaS, IaaS, PaaS)
• Deployment models (private, public, hybrid)
• Cloud security strategy and architecture