Identity and Directory Services Engineer - TS/SCI with Polygraph

Company: GD Information Technology
Location: Chantilly
Posted on: April 2, 2026

Job Description:

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI Polygraph Public Trust/Other Required: None Job Family: IT Infrastructure and Operations Job Qualifications: Skills: Active Directory (AD), DNS, Microsoft Windows Server Certifications: None Experience: 10 years of related experience US Citizenship Required: Yes Job Description: We are seeking highly motivated engineers with a thirst for learning, in support of a geographically dispersed, state of the art systems that seamlessly integrate Linux and Microsoft services. Candidates with proven depth creating solutions with Microsoft Windows Server will be positioned for success in our organization. The selected candidate will design, build and deploy, and administer large scale multi-domain enterprise Windows Server environments. Additionally, engineers will build, maintain and migrate a variety of physical and virtual systems to on-premises, cloud, or hybrid infrastructures. Engineers will provide support to multiple globally dispersed WAN connected sites. Embracing the DevOps model, engineers will be responsible for supporting their solutions throughout the entire IT project lifecycle, to include refining requirements, creating design documentation, creating installation instructions and deployment plans, and providing O&M support. Project assignments will vary based on skill level, and may include engineering geographically dispersed services, integrating services into public, private and hybrid cloud environments, engineering solutions to be deployed via automated CM tools, and hardening the solutions to address security and SCAP compliance. Responsibilities: Designs and defines system architecture for new or existing computer systems utilizing both on-premises and cloud-based hosting technologies Analyze requirements and system architectures to develop system requirements specifications and resulting design plans Administer, operate, manage and maintain components for on-premises and cloud-based virtualized systems Reviews completion and implementation of system additions and/or enhancements and makes recommendations to management and/or clients Plans and directs upgrades of Windows Server infrastructure and related components in the area of Active Directory, Domain Controller topology, LDAP, Authentication Services, DNS, Permissions and Access Controls and Group Policy Required Skills: Experience with Microsoft Windows Server Active Directory design and implementation Experience with Group Policy Management Experience with Windows DNS and DHCP Experience with LDAP Experience with Active Directory Federation Services Experience with Active Directory Domains and Trusts Experience with monitoring of Microsoft systems using System Center Operations Manager Experience with Microsoft deployment methodology options to include Microsoft Deployment Toolkit and System Center Configuration Manager Experience with Windows Server 2016, 2019 experience is optimal Experience with Microsoft Identity Manager and/or Forefront Identity Manager experience is optimal Experience with Microsoft Windows automation scripting with PowerShell or other scripting languages Experience building/managing servers in AWS (Amazon Web Services) and Vmware based environment is desired Experience with managing work tasks via tools such as JIRA and ServiceNow System configuration experience and hardening based on security guidelines, such as DISA STIGs CompTIA Security or similar for IAT Level II DoD 8570/8140 certification Location: On Customer Site US Citizenship Required GDIT Is Your Place: 401K with company match Comprehensive health and wellness packages Internal Mobility team dedicated to helping you own your career Professional growth opportunities including paid education and certifications Cutting-edge technology you can learn from Rest and recharge with paid vacation and holidays GDITcareers OpportunityOwned WeAreGDIT transitioningmilitary clearedjobs veterans Autobots The likely salary range for this position is $142,792 - $184,000. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range. Scheduled Weekly Hours: 40 Travel Required: None T elecommuting Options: Onsite Work Location: USA VA Chantilly Additional Work Locations: Total Rewards at GDIT: Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most. We are GDIT. A global technology and professional services company that delivers consulting, technology and mission services to every major agency across the U.S. government, defense and intelligence community. Our 30,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50 countries worldwide, offering leading capabilities in digital modernization, AI/ML, Cloud, Cyber and application development. Together with our clients, we strive to create a safer, smarter world by harnessing the power of deep expertise and advanced technology. Join our Talent Community to stay up to date on our career opportunities and events at gdit.com/tc . Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans

Keywords: GD Information Technology, Towson , Identity and Directory Services Engineer - TS/SCI with Polygraph, IT / Software / Systems , Chantilly, Maryland