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Job Details


Senior Windows Systems Administrator





Baltimore, Maryland, United States


Job Description:

Leidos is seeking a Sr. Windows Systems Administrator in support of the Defense Information Systems Agency (DISA). DISA acts as the provider of GIG/Defense Information System Network (DISN) services to its customers, the department of Defense (DoD), and national security organizations. The candidate must possess extensive skills and experience with Microsoft Windows products and services.

Primary Responsibilities

  • The candidate works independently to maintain the smooth operation of a multi-user computer system including coordination with network administrators.
  • Duties include setting up user, administrator and service accounts, tuning system performance, installing system wide software and allocate mass storage space.
  • Test and troubleshoot integrations to confirm successful integration.
  • Communicate with customers during integration and post-integration including responding to emails, facilitating meetings or phone conversations, participating in solving technical problems.
  • Author/update documentation.
  • Makes recommendations to purchase hardware and software, coordinates installation and provides backup recovery.
  • Develops and monitors policies and standards for allocation related to the use of computing resources.
  • Creates, maintains, and implements detailed documentation and maintains standard operating procedures.
  • Application of security settings and other commercial best practices such as DISA STIGS.
  • Provides coaching and reviewing the work of lower-level technical staff.

Basic Qualifications

  • Bachelor's degree and 12+ years of overall related experience or Master with 10+ years. Specific experience, education and training may be considered in lieu of degree.
  • Expertise in Windows Active Directory and the various services provided including, DFS, DNS, and Certificate Authority.
  • Expertise with AD GPOs- design, build, test, and sustain in multiple environments.
  • Extensive experience working with all flavors of Windows especially Server 2016 and Windows 10.
  • Experience working with virtual environments using VMware.
  • Application of security settings and other commercial best practices such as DISA STIGS.
  • Must posses DoD 8750 certification at least IAT level II, e.g. Security+ce.
  • Must posses Top Secret with SCI Eligibility clearance.

Preferred Qualifications

  • Knowledge of VMware vSphere, and vCenter to troubleshoot and resolve complex problems.
  • Integration of cyber security tools and systems with network performance, trouble ticketing, and security subsystems highly desired.
  • Experience with support systems to include enclave Ethernet switches, storage area networks (SAN), and network attached storage (NAS).
  • Candidates with a thorough knowledge of networking principles to included TCP/IP a plus.


Pay Range:Pay Range $101,400.00 - $156,000.00 - $210,600.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.