• Location: Annapolis Junction
  • Type: Contract
  • Job #2565

Title  System Administrator
Location: Annapolis Junction, MD
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *

Company Overview: 
Cornerstone Defense, in partnership with our military, intelligence, and civil government customers, supports U.S. operations worldwide through the use of many different types of intelligence, satellite, and cyber technologies.  Cornerstone’s Intelligence Sector provides solutions to the United States Government for information collection, operations, exploitation and dissemination, and research activities. Our Team specializes in software development, cloud architecture, systems and network engineering, systems integration, agile management, as well as targeting operations and intelligence analysis. Our support to our mission customers includes cyber network operations, exploitation and defense, signals intelligence, human intelligence, and critical missions and networks. 

The Level 3 System Administrator (SA) shall possess the following capabilities:

  • 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 of 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 installs/loads operating system software, troubleshoot, maintain integrity of and configure network components, along with implementing operating systems enhancements to improve reliability and performance
  • Support the design of systems, mission architecture and associated hardware
  • Possess a working knowledge and understanding of system administration interdependencies as part of the Service Oriented Architecture (SOA)
  • Analyze and resolve complex problems associated with server hardware, applications and software integration

Fifteen (15) years' experience as a SA in programs and contracts of similar scope, type, and complexity is required. Bachelor's degree in a technical discipline from an accredited college or university is required. Five (5) years of additional SA experience may be substituted for a bachelor's degree.

Position Description
The System Administrator shall be responsible for providing network management and systems administration to maintain the Agency’s High Performance Computing (HPC) infrastructure and HPC development environment. The Systems Administrator shall require SYS1 access and must have the Security+ certification.
Position Required Skills

  • Experience using the Linux CLI
  • Experience developing scripts using Bash/Python
  • Experience performing System Administration including installation, configuration, and support of COTS/GOTS software, packages, and libraries in a Linux and Windows environment
  • Experience with Network Appliance clustered servers and applicable software with direct attached FC San storage
  • Experience with hands-on troubleshooting, customer interfacing, issue resolution, discrepancy tracking, and report generation
  • Familiar with software frameworks used for searching, monitoring, and analyzing big data such as Splunk and Elastic Stack
  • Experience with Linux configuration regarding Storage, Networking, Load Balancing, Memory Management, VMs, Firewalls, and System Monitoring
  • Experience with corporate STE/STN security compliance policies, procedures, and tools
  • Experience with corporate SSP accreditation processes   
  • Experience with IaC (Infrastructure as Code) principles and automation tools such as  SaltStack and Ansible

Position Desired Skills

  • Experience with the Atlassian Suite of Tools such as Jira and Confluence
  • Experience with sanitization of hardware, firmware, and / or software removed from computing environment in accordance with USG policies and procedures
  • Experience with NetBackup and/or tape backup systems and archiving
  • Experience with ePolicy Orchestrator and McAfee


Attach a resume file. Accepted file types are DOC, DOCX, PDF, HTML, and TXT.

We are uploading your application. It may take a few moments to read your resume. Please wait!