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Job #: R-00033771
Location: Quantico, VA
Category: Network Administration and Ops
Schedule (FT/PT): Full Time
Travel Required: Yes, 10% of the time
Shift: Day
Potential for Telework: No
Clearance Required: Top Secret/SCI
Referral Eligibility: Ineligible
Group: Defense

This job posting is no longer active.

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Job Description:

Leidos is pleased to announce that it has been awarded the Next Generation Enterprise Network-Recompete (NGEN-R) Contract.  This is an eight-year, $7.7 billion contract that is responsible for maintaining and modernizing the main global network of the Navy and Marine Corps.

In support of this exciting program Leidos is looking to hire a Directory Services Design Engineer in Quantico, VA to join our Team. 

NGEN-R is the largest IT services program for the Navy. Under the Service Management, Integration, and Transport portion of NGEN-R, the Leidos team will deliver the core backbone of the Navy-Marine Corps Intranet, including cybersecurity services, network operations, service desk, and data transport. Ultimately, Leidos will support the Navy in unifying its shore-based networks and data management to improve capability and service while also saving significant dollars by focusing efforts under one enterprise network.

Job Description
The qualified candidate will assist the Government Lead in the daily engineering duties on systems. Other duties and responsibilities include:

  • Assist the Government Lead in the daily engineering duties on systems including the design, operation, maintenance, trouble shooting, sustainment and account administration for Active Directory, Active Directory Application Mode (ADAM), and the Global Address Book (GAL).
  • Perform security updates in accordance with Government procedures for directory services.  
  • Design and Perform Rights Management Services for administrators, users and groups.
  • Operate system and application Group Policy Objects (GPO) based on the corresponding Defense Information Systems Agency (DISA) Security Technical Implementation Guides (STIGs) and the Navy/Marine Corps Enterprise Designated Approval Authority (DAA) guidance regarding the Federal Desktop Core Configuration (FDCC).
  • Execute security updates in accordance with Government procedures for directory services.
  • Provide directory authentication services for enterprise applications and trusted relationships between users, devices, applications, services, and other resources throughout the network.
  • Provide directory synchronization to Enterprise Directory Services (EDS) and Identity Synchronization Services (IdSS) through the appropriate transport boundaries in accordance with Government procedures.
  • Provide standard Active Directory services plus the availability to use Windows Lightweight Directory Access Protocol (LDAP) services for all physical and virtual application servers, network devices, and appliances.
  • Monitor and optimize replication speed of directory services.
  • Design and perform schema extensions for directory services. Design application networking ports and protocols, Information Assurance (IA), routing and LAN.
  • Assist with the development and integration of identity and access management requirements using ForeFront Identity Manager, Oracle/Sun Identity and Access Management.  
  • Utilize Active Directory Federated Services (ADFS).
  • Perform integration with public key infrastructure (PKI) certificates and network accounts to support two-factor authentication for all Active Directory (AD) domain account categories and eliminate the need for password-based authentication.
  • Design and perform Global Address List (GAL) for access via Outlook, Outlook Web Access, or other similar product.  
  • Perform system integration and installation on various server hardware, WSUS (Windows Server Update Services), System Center Configuration Manager (SCCM) 2007/12, Host Based Security System (HBSS), Structured Query Language (SQL) 2008 r2, external storage devices utilizing Logical Unit Numbers (LUNs), quota distribution and File sharing, and virtualization (specifically but not limited to VMware and Hyper-V).  
  • Execute Backup (Disaster Recovery) using NetbackUp.

Basic Qualifications:

  • Bachelors Degree in Computer Science, MIS, Business or related field and 10 years of relevant experience or Masters Degree and 6 years of relevant experience
  • Active Top Secret/SCI clearance
  • Experience using Windows PowerShell scripting, Windows 2008R2 /2012 R2, Active Directory, Flexible Single Master Operations (FSMO), Sites and Services, Domain Name Server (DNS), Dynamic Host Configuration Protocol (DHCP), Internet Information Services (IIS), SimpleSync, and Unity Sync.
  • Must possess a certification in accordance with DoD 8570.01-M Information Assurance Technician Level III.

Preferred Qualifications:

  • ForeFront Identity Manager
  • Oracle/Sun Identity and Access Management
  • Windows PowerShell 
  • Windows 2008R2 /2012 R2
  • Active Directory
  • Flexible Single Master Operations (FSMO)
  • Internet Information Services (IIS)
  • SimpleSync
  • Unity Sync
  • Outlook
  • Outlook Web Access
  • WSUS (Windows Server Update Services)
  • System Center Configuration Manager (SCCM) 2007/12


External Referral Bonus:


Potential for Telework:


Clearance Level Required:

Top Secret/SCI


Yes, 10% of the time

Scheduled Weekly Hours:




Requisition Category:


Job Family:

Network Administration and Ops


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 33,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Virginia, Leidos reported annual revenues of approximately $10.19 billion for the fiscal year ended December 28, 2018. 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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