Systems Administrator Level 3 - TS/SCI Required

Clearance Level
Top Secret/SCI
Systems Administration
Fort Belvoir, Virginia
Fort Meade, Maryland
Charlottesville, Virginia
Onsite Workplace
Key Skills For Success

Active Directory (AD)

Installation Support


REQ#: RQ139417
Requisition Type: Pipeline
Your Impact

Own your opportunity to work with the largest government agency in the nation. Make an impact by advancing the Department of Defense’s mission to keep our country safe and secure.

Job Description

GDIT is seeking candidates to support the US Army Intelligence and Security Command (INSCOM). Under the I2TS 3 task order, INSCOM ensures reliable, uninterrupted availability of Command, Control, Communications, Computers, and Information Management (C4IM) including: networks, hardware, software, engineering, and specialized tools at the point of customer need to support INSCOM's mission. INSCOM and its MSCs provide the enabling layer to connect the Army and its tactical formations to defense and national intelligence agencies via tactical networks. The ability to provide mission critical intelligence is dependent on the successful use of its information technology (IT) networks worldwide.

Principal Duties and Responsibilities:

An I2TS 3 Systems Administrator Level 3 will:

  • Install, configure, and maintain Active Directory and third-party software utilities for hardware systems within operational guidelines.

  • Produce global enterprise-level designs for secure Active Directory and Identity systems for global initiatives

  • Monitor systems for vulnerabilities, track, prioritize remediate or mitigate per policies.

  • Strong knowledge of Active Directory design and Group Policy, DNS, and DHCP

  • Own root cause analysis and problem management for corporate Identity Management environment.

  • Lead projects through implementation via collaboration with all IT, security and support teams.

  • Create and maintain system documentation for domain technologies, including installation, configuration, and appropriate troubleshooting steps.

  • Identify opportunities and improve existing processes through solutions to recurring problems and enhancements to existing solutions or documentation.

  • Document processes and solutions.

  • Provide support for implementation, troubleshooting and maintenance of IT systems

  • Manage IT system infrastructure and any processes related to these systems

  • Provide support to IT systems including day-to-day operations, monitoring and problem resolution for Active Directory task and activities

  • Provide Tier 3 problem identification, diagnosis and resolution of problem

  • Provide support for the escalation and communication of status to agency management and internal customers

  • Provide support for the dispatch system and hardware problems and remains involved in the resolution process

  • Install/load operating system and application software

  • Integrate new technologies into new and existing systems including the transition and migration of corporate systems

Desirable Skills / Experience:

  • Experience working with Microsoft Identity technologies including Active Directory, Certificate Services, Lightweight Directory Services, Group Policy, Single Sign On and Multi-Faction Authorization solutions

  • Experience working with large AD enterprises to include DNS and DHCP technologies

  • Experience working with MECM ( Microsoft Endpoint Configuration Manager)

  • Experience working with Microsoft RDS (Remote Desktop Services)

  • Experience working with Microsoft Exchange

  • Experience working with Microsoft Print Services

  • Experience working in large DoD enterprise network environments

  • Experience working with DISA STIGs

  • Knowledge of server virtualization technologies, preferably VMware and/or Microsoft technologies

  • Minimum 10 years overall IT experience with 5-7 years of experience working with Identity technologies including Active Directory, Federation, Multi-Factor Identification, Identity Governance Administration, Privileged Access Management, Group Policies and similar systems.

  • 5+ years IT engineering experience in a global information technology infrastructure environment

  • Certifications in Microsoft Technology, Microsoft Server Administration and Information Security preferred

Education Required:

  • High School Diploma/GED with 8 years of related experience, or Associate’s Degree with 6 years of experience, or Bachelor’s Degree with 4 years of experience


  • Required Security Environment Certification: CompTIA Security+ CE or equivalent

  • Required Computing Environment certification: MCSA Windows Server 2016 or equivalent to start.

  • Required Computing Environment certification: MCSE Windows Server 2016 or higher can obtain within 180 days of hire date.

Security Clearance:

  • TS/SCI required


  • Candidates must be willing and able to attain a CI Polygraph for certain positions as determined by the contract





Work Requirements
Years of Experience

10 + years of related experience

* may vary based on technical training, certification(s), or degree


CompTIA - Security+ - CompTIA

Travel Required

Less than 10%

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 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.