Senior System Administrator

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 *, Provide support for implementation, troubleshooting and maintenance of Information Technology (IT) systems. Manages IT system infrastructure and any processes related to these systems. Provides support to IT systems including day-to-day operations, monitoring, and problem resolution for all the client / server / storage / network devices, mobile devices, etc. Provides Tier 1 (Help Desk) and Tier 2 (Escalation) problem identification, diagnosis, and resolution of problems. Provides support for the escalation and communication of status to agency management and internal customers. Provides support for the dispatch system and hardware problems and remains involved in the resolution process. Configures and manages UNIX and Windows operating systems and installs / loads operating system software, troubleshoot, maintains integrity and configures network components along with implementing operating system enhancements to improve reliability and performance., * Provide support for implementation, troubleshooting and maintenance of IT systems.

• Provide support for implementation, troubleshooting and maintenance of IT systems.
• Provide Tier 1 (Help Desk) problem identification, diagnosis and resolution of problems.
• Manage the daily activities of configuration and operation of IT systems.
• Provide assistance to users in accessing and using IT systems.
• Provide Tier 1 (Help Desk) and Tier 2 (Escalation) problem identification, diagnosis and resolution of problems.
• Provide support to IT systems including day-to-day operations, monitoring and problem resolution for all the client/server/storage/network devices, mobile devices, etc.
• Provide support for the escalation and communication of status to agency management and internal customers.
• Optimize system operations and resource utilization and perform system capacity analysis and planning.
• Provide in-depth experience in trouble-shooting IT systems.
• Provide detailed analysis and feedback to agency management and internal customers for escalated tickets.
• Provide support for the dispatch system and hardware problems and remains involved in the resolution process.
• Configure and manage UNIX and Windows (or other applicable) operating systems and install/load operating system software, troubleshoot, maintain integrity of and configure network components, along with implementing operating systems enhancements to improve reliability and performance.

• Bachelor’s degree in Computer Science or related discipline from an accredited college or university is required.
• Five (5) years of additional SA experience may be substituted for a bachelor’s degree.
• Ten (10) years’ experience as a SA in programs and contracts of similar scope, type, and complexity is required., * Three (3) years of experience installing, configuring, maintaining, troubleshooting, and using system security (container security, virtual machine security, security boundary enforcement), configuration, and reporting tools.
• Experience with Windows/UNIX administration and configuration
• Three (3) years of experience with the following tools is strongly preferred: ELK, Tripwire, VMware, RedHat SELinux security tool suite.

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.