Systems Architect L3/L4 - TS/SCI Required

Clearance Level
Top Secret/SCI
Systems Engineering
Fort Belvoir, Virginia
Onsite Workplace
Key Skills For Success


System Modeling

Systems Development

REQ#: RQ139517
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
Job Description

GDIT is seeking a Systems Architect 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 Architect (L3):

  • Focused on projects and new capabilities of the customer 

  • Leads and/or facilitates solutioning discussions with the customers, vendors and other stakeholders.

  • Evaluates emerging hardware and software capabilities.

  • Develops implementation plans, design drawings, security plans and other documentation as required.

  • Develops technical roadmaps to meet future mission requirements and capabilities.

  • Develops business case analysis for potential projects and tasks.

  • Ensures security is integrated into all architecture solutions.

  • Performs advanced systems modeling, simulation, and analysis.

  • Performs complex systems development and design work.

  • Develops and provides input for documentation on existing systems.

  • Provides high level expertise to multiple projects and tasks.

  • Maintains current knowledge of relevant technology as assigned.

  • Performs evaluation of system alternatives

  • Performs assessment of risks and costs

  • May coach and provide guidance to less-experienced professionals

  • May serve as a team or task lead

Desirable Skills / Experience:

  • Comprehensive knowledge of system architectural principles, methods, and techniques

  • Networking background and current knowledge of networking concepts and technologies

  • Excellent verbal and written communication skills


  • DoD 8570. 01-M IAT Level II Computing Environment (CE) Certification as determined by the Program Manager is required prior to support on contract

  • Required Security Environment Certification: CASP, CISSP, CISM, GSLC, CCNP-Security

  • Computing Environment certification: MCSE, Cloud Platform and Infrastructure (Server) etc.

Security Clearance:

  • TS/SCI required


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

  • Travel maybe required in support of customer's mission requirements


  • High School Diploma/GED with 10 years of related experience, or Associate s Degree with 8 years of experience, or Bachelor s Degree with 6 years of experience, or Master s degree with 4 years of experience


10 years of related systems engineering experience.





Work Requirements
Years of Experience

10 + years of related experience

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


CASP: CompTIA Advanced Security Practitioner - 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.