Systems Administrator

Job Number:
Job Category:
Cyber Security
Yes, 10% of the time
Day Job
Potential for Teleworking:
Clearance Level Must Currently Possess:
Top Secret/SCI
Clearance Level Must Be Able to Obtain:
Top Secret/SCI with Polygraph

Leidos has an immediate opportunity for a Systems Administrator to join our team.  Position requires a TS/SCI clearance.  Relocation and Sign-on available to qualified, selected candidates.



•Provide day-to-day Systems Administration for a DoDIIS Trusted Workstation (DTW/SABER - Solaris 10 with Trusted Extensions) based computing environment. Work will be performed on a complex Multi-Level Security (MLS) architecture and on associated back-end network systems.

•Position is primarily responsible for the development of standards related to the use of computing resources, overall strategy, design, implementation, and operational aspects of multiple systems, operating environments, and related software.

•The candidate will, based on a comprehensive understanding of the system and its operation, identify ways to tune/increase system performance and responsiveness. The candidate will formulate and document an approach to problem resolution based on experience and knowledge, and coordinate actions with appropriate team members (System Engineering, Security Engineering, Software Engineering). Upon approval to implement changes to the system, the candidate will implement and test the approved solution(s).

•Candidate will conduct appropriate research and apply their knowledge of client-server/networking systems to organize, formulate and document solutions.

•Utilizing diagnostic software, the candidate will evaluate/analyze gathered metrics to determine where server/system/network performance is degraded and apply their knowledge of client-server, networking and storage technology to formulate recommended solutions to implement in order to improve/resolve poor system performance. No system changes are made without approval from Security Engineering.
•Based on investigation and expert judgment, the candidate will formulate an approach to solving a system-level problem, documenting their recommendations in a project plan which details the identified problem, approach to resolution, steps to test to ensure problems have been corrected, and a proposed timeline/schedule to implement the solution. Upon approval from the CCB and Security Engineering, the candidate will be responsible for executing the approved project plan.

•Additional computing infrastructure to be administered includes Trusted Computer Solutions (TCS) Trusted Gateways (Trusted Linux RHEL 6) and Red Hat RHEL 5 servers.

•Client-side System Administration would include a VMWare hosted Windows 2008R2 Server based domain utilizing Active Directory, MS Exchange and Terminal Services.

•The System Administrator would also manage hardware which includes HP Blade Center, Cisco switches (Core and Distribution Layer), desktop PC’s, Sun Thin Client appliances, Sun servers and a NetApp storage system.

•This position requires on-call periodic after hours support on a rotational schedule.





  • Position requires an active DoD TS/SCI clearance

  • BS in Computer Science or relevant subject matter and 7+ years of  systems administration experience; additional relevant/specialized training and experience may be substituted in lieu of a degree
  • Effective provisioning, installation/configuration, operation, and maintenance of systems hardware and software and related infrastructure
  • Performing daily system monitoring, verifying the integrity and availability of all hardware, server resources, systems and key processes, reviewing system and application logs, and verifying completion of scheduled jobs such as backups
  • Installation, configuration and support of software systems commensurate with position description
  • Client-Server networking systems: DNS, DHCP, LDAP, TCP/IP
  • Must be able to demonstrate a working knowledge of Cisco IOS and COS along with an understanding of UTP cable installation and termination, multimode fiber installation, network management "best practices" and a demonstrated knowledge of network hardware configuration (switches and routers).
  • The selected candidate must have a working knowledge of Information Assurance and Certification & Accreditation requirements outlined in DCID 6/3 and/or ICD 503 as well as facility security requirements outlined in DCID 6/9.
  • Strong verbal and written communications skills are required as well as the ability to maintain professionalism in a diverse customer environment.

  • Preferred Experience:

    • The ideal candidate will have experience with Storage Area Network (SAN) technologies, NetApp Filer configurations and disaster recovery best practices. 
    • Current MCSE, CISSP, and CCNA preferred





    Leidos Overview:
    Leidos is a global science and technology solutions leader working to solve the world’s toughest challenges in the defense, intelligence, homeland security, civil, and health markets. The company’s 33,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Virginia, Leidos reported pro forma annual revenues of approximately $10 billion for the fiscal year ended January 1, 2016 after giving effect to the recently completed combination of Leidos with Lockheed Martin's Information Systems & Global Solutions business (IS&GS). For more information, visit www.Leidos.com. The company’s diverse employees support vital missions for government and commercial customers. Qualified women, minorities, individuals with disabilities and protected veterans are encouraged to apply. Leidos will consider qualified applicants with criminal histories for employment in accordance with relevant Laws. Leidos is an Equal Opportunity Employer.
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