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Systems Engineer (TS/SCI with Poly Required)

GCI.com

117k - 195k USD/year

Office

Chantilly, Virginia, United States

Full Time

GCI, embodies excellence, integrity and professionalism. The employees supporting our customers deliver unique, high-value mission solutions while effectively leverage the technological expertise of our valued workforce to meet critical mission requirements in the areas of Data Analytics and Software Development, Engineering, Targeting and Analysis, Operations, Training, and Cyber Operations. We maximize opportunities for success by building and maintaining trusted and reliable partnerships with our customers and industry.

At GCI, we solve the hard problems. As a Systems Engineer (ISSO) a typical day will include the following duties:

Job Desecription

Members of the ISSO team support the customer and their assessment and authorization (A&A) of critical systems, detection of adversary behavior, and improving the defensive posture of their information systems. The successful candidate will use various tools and methodologies to evaluate the state of systems and applications for vulnerabilities, verify protection against adversary intent, and evaluate cyber security processes to protect and defend against adversaries.

Key Responsibilities

  • Overseeing the security and coordinating risk management by identifying requirements for documentation with system categorization, the System Security Plan (SSP), and systems risk assessment as required under NIST 800-53/53A.
  • Function as the go-to person for security questions and needs while supporting the customer in-house as well as external stakeholders.
  • Assessing system compliance with NIST requirements and identifying vulnerabilities in systems and evaluating planned remedial actions based upon those requirements.
  • Participating in change management by reviewing change requests and assessing the security impact of proposed changes and coordinating those changes with the ISSM.
  • Work closely with stakeholders, developers, and external teams including customer security managers (ISSMs), organizational leadership, and key personnel to maintain security posture.

Education And Experience

  • Bachelors degree in computer engineering, compute science, cybersecurity, or a similar degree, or 5-8 years of relevant work experience.
  • 5 years of demonstrated cybersecurity expertise.

Required Qualifications

  • Experience assisting the customer with decisions impacting the security posture and compliance of their systems and networks with requirements as documented in NIST 800-53 and its revisions.
  • Verbal and written communication skills that demonstrate technical cybersecurity concepts in a clear and concise manner.
  • Support control implementation assessment and reporting and monitoring process using cybersecurity and assessment management systems.
  • Ability to work both independently and in a team environment.

Desired Qualifiecations

  • Demonstrated history of technical aptitude with vulnerability and risk assessment tools
  • Strong understanding of methodologies for researching and documenting software and hardware vulnerabilities
  • Demonstrated skill documenting process and procedures in CONOPS, system security, contingency, configuration management and other plans
  • Knowledge of the customer’s organization, network systems, processes and procedures

Salary Range $116,979.20 to $195,374.40

*A candidate must be a US Citizen and requires an active/current TS/SCI with Polygraph clearance. 

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans

Systems Engineer (TS/SCI with Poly Required)

Office

Chantilly, Virginia, United States

Full Time

117k - 195k USD/year

September 26, 2025

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GCI

GCI.com

GCItech