To our valued Leidos candidates:

Coronavirus is on everyone's mind with the effects being felt around the world. The markets are volatile, and we're all concerned for the health and safety of our families, friends, and colleagues. Please know that we're taking all necessary measures to safeguard our employees, customers and the communities in which we live, including following all recommended best practices around social distancing.

With that in mind, in an abundance of caution, we are canceling all face to face career events, such as job fairs and open house events. In the coming days and weeks, we will be hosting career events virtually, using our online chat tools so that we may continue our hiring practice safely and securely. You can find available virtual career events at

We are using telephone meetings and online chats via Brazen to conduct interviews and hiring discussions, and we are offering options for video interviews so that you can have a virtual face to face meeting with your potential new leader. We do not conduct interviews or extend offers via text or chat based social media, such as WhatsApp or MySpace.

Leidos will never ask you to provide payment-related information at any part of the employment application process, nor will Leidos ever advance money as part of the hiring process. And Leidos will communicate with you only through emails that are generated by automated system. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to Chris Scalia, Leidos’ Senior Vice President of Talent Acquisition, at [email protected].

As a company, as a country, as a world, we have confronted challenging moments before. We are confident that, guided by our values and the strength of our community as well as the commitment we have to the important work we do each day, we will find our way through this time together. We will do this with the care and concern for one another and the common good that defines. Please keep those impacted by the virus in your thoughts.

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Job #: R-00052557
Location: Arlington, VA
Category: Systems Administration
Schedule (FT/PT): Full Time
Travel Required: No
Shift: Day
Potential for Telework: No
Clearance: Top Secret
Referral Eligibility: Eligible
Group: Defense

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Job Description:

The Defense Group of Leidos is seeking an experienced Windows Server Administrator responsible for Windows system administration, STIG remediation, enterprise security approaches, and special projects within a Platform Systems Services (PSS) hosting environment.  This role also has responsibility for orchestrating enterprise solutions across 2012, 2016, and 2016 systems environments within different hosted classification levels.

Shift Schedule: Monday-Friday, 8:00 to 5:00 PM core hours with occasional after hours’ onsite work to support both a NIPR and SIPR environment.

Position Overview:

  • Perform complex system administration and security engineering efforts, such as CAC enablement, STIG remediation, advanced GPO implementation and implementing system upgrades.

  • Provide advanced engineering support and implement STIG remediation and standardizations across an enterprise of tens of thousands of endpoint systems.

  • Analyze and recommend automated solutions for implementing remediation efforts and enforcing remediation through policies, settings, and profiles

  • Collaborate across technology areas to implement firewall rules, exceptions, and manage PPSM requests and efforts to fulfilment

  • Support administration and engineering efforts across systems hosted on ESX VMware platforms 

  • Demonstrate day-to-day adherence with change management precepts and practices and is responsible for writing Change Requests and seeking approval

  • Investigate and troubleshoot operational problems and challenges at the architect level in conjunction with security and other engineering personnel

  • Proactively detect infrastructure and architectural issues and make recommendations to solve or address

  • Collaborate with other teams, such as Apps O&M, Database, SCCM and Virtualization to provide technical solutions


  • This position requires an active DOD Top Secret clearance. 

  • Possess DoD 8570.01-M/DoD 8140 Certification IAW established mandate prior to start of work  - IAT Level II required (Security+ CE) 

  • Bachelor’s Degree with at least 8+ years of relevant experience Master’s Degree with 6+ years of experience or additional related years of experience is accepted in lieu of a degree.

  • Experience with Windows Server 2012, 2016, and 2019

  • Proficient understanding of technology areas such as Active Directory, DHCP, DNS, Group Policy, DFS and the ability to maintain other Windows core services.

  • Fundamental understanding of authentication mechanisms such as Kerberos, LDAP and NTLM and use of necessary tools to troubleshoot them.

  • Expert knowledge of networking concepts and technologies

  • Windows scripting, shell, or similar technology

  • Strong clustering, scaling, backups/restores, and engineering with Windows technologies and solutions

  • Strong experience with Windows STIGs and remediation

  • Experience within DoD environment supporting Platform as a Service / hosting services platforms

  • Knowledge of SCCM and SCOM systems


  • Windows Certifications

  • Skills with Scripting, Visio, HTML, .NET or CSS

  • VMware VCenter, ESXi Hypervisor

  • Windows images and custom templates

  • Experience supporting and administering SQL Server

External Referral Bonus:


Potential for Telework:


Clearance Level Required:

Top Secret



Scheduled Weekly Hours:




Requisition Category:


Job Family:

Systems Administration

Pay Range:


About Leidos

Leidos is a Fortune 500® information technology, engineering, and science solutions and services leader working to solve the world’s toughest challenges in the defense, intelligence, homeland security, civil, and health markets. The company’s 38,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Va., Leidos reported annual revenues of approximately $11.09 billion for the fiscal year ended January 3, 2020. For more information, visit

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available here.

Securing Your Data

Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to [email protected].

Commitment to Diversity

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.

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