Active Directory Engineer

Clearance Level
Top Secret/SCI
Systems Engineering
St Louis, Missouri

REQ#: RQ119846

Travel Required: Less than 10%
Public Trust: None
Requisition Type: Regular

We think. We act. We deliver. There is no challenge we can't turn into opportunity. And our work depends on a TS/SCI level cleared Senior Active Directory Engineer joining our team to support our Intelligence customer.

GDIT is seeking a Senior Active Directory Engineer to support the planning, building, and operations of a large, globally accessed, hybrid cloud computing system. The Senior Active Directory Engineer provides support, implementation, and design services for Microsoft Active Directory and Windows-based systems across the enterprise, including directory and identity management solutions.

We are looking for an individual who has a proven track record designing and deploying Active Directory in a large enterprise. Additionally, the position will require an individual experienced in system design and integration, identity life-cycle management, and process automation and improvement. The ideal candidate will be a motivated self-starter with excellent written and verbal communication skills, who exceeds as an individual, as well as excels among peers in a team environment.

Job Duties include but are not limited to:

  • Accountable for the management, uptime, and lifecycle of the organizations Active Directory forests, domains, and Domain Controllers.
  • Deliver and implement a secure, scalable, and resilient Active Directory design, following industry best practices while adhering to Information Security standards.
  • Provide technical assistance and escalation support for all troubleshooting tasks related to AD, including but not limited to integration with Windows and non-Windows endpoints, authentication, role-based access controls, DNS, DHCP, etc.
  • Manage the environment proactively, anticipating risks and issues, designing and engineering for resiliency. Take technical ownership of projects and systems accordingly.
  • Facilitate the implementation of Group Policy Objects (GPO) based on stated requirements. Troubleshoot and resolve any GPO related issues which arise.
  • Monitor and identify replication interruptions between domain controllers.
  • Management of the Public Key Infrastructure (PKI) systems and certificates.


1.     Microsoft Certified Solutions Expert (MCSE)

5+ years of experience in progressive roles from Active Directory Administrator to Sr. Engineer

3.     Knowledge of at least one scripting language (e.g. Powershell, Python, Bash, or Perl).

4.     In Depth understanding of Active Directory or LDAP authentication and administration.

5.     Advanced familiarity with enterprise directory synchronization tools such as Azure Active Directory Connect, Cisco Directory Synchronization, or others.


1. Experience migrating users and objects from disparate AD environments to new environments.

2. Knowledge of custom Active Directory schema attributes.

3. Experience administrating Azure Active Directory and single sign-on.

4. Experience working in a fast tempo government agency production IT environment.

5. Experience troubleshooting various Microsoft Windows Server platforms' roles and features.


About Our Work

We are GDIT. The people supporting some of the most complex government, defense, and intelligence projects across the country. We deliver. Bringing the expertise needed to understand and advance critical missions. We transform. Shifting the ways clients invest in, integrate, and innovate technology solutions. We ensure today is safe and tomorrow is smarter. We are there. On the ground, beside our clients, in the lab, and everywhere in between. Offering the technology transformations, strategy, and mission services needed to get the job done.

COVID-19 Vaccination

GDIT does not have a vaccination mandate applicable to all employees. To protect the health and safety of its employees and to comply with customer requirements, however, GDIT may require employees in certain positions to be fully vaccinated against COVID-19. Vaccination requirements will depend on the status of the federal contractor mandate and customer site requirements.

GDIT is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status, or any other protected class.