Information System Security Officer

GD Information Technology•Fairview Park, OH

3d•Onsite

About The Position

At GDIT, the Information System Security Officer helps safeguard critical government systems through security governance, risk evaluation, and compliance oversight. The position applies prior ISSM/ISSO experience to managing RMF controls, system documentation, and continuous monitoring, and supports security assessments across systems and programs. The role focuses on audit, risk, and compliance work that strengthens the customer’s security posture and operational resilience. The position is onsite in Falls Church, Virginia, five days per week, with possible work at other local offices. It is a temporary, at-will position with an expected end date of September 2027. The schedule is 40 hours per week, and travel is less than 10%.

Requirements

At least 3 years of related experience as a prior ISSO/ISSM.
Bachelor’s degree, or 4 or more years of additional work experience, training, or education in lieu of a degree.
IAT II certification, such as Security+, SSCP, or CCNA Security.
Strong understanding of NIST SP 800-53, DoW cybersecurity requirements, and control implementation and assessment practices.
Familiarity with Windows/Linux environments, vulnerability tools, and security baselines.
Active Secret clearance required for consideration.
U.S. citizenship required.
Ability to work onsite in Falls Church, VA, five days per week, and possibly at other local offices.

Responsibilities

Conduct security audits and RMF control assessments using prior ISSO/ISSM experience.
Review, validate, and improve security artifacts, including SSPs, POA&Ms, and continuous monitoring deliverables.
Evaluate system security controls for effectiveness, sufficiency, and alignment with NIST 800-53, DoW requirements, and organizational policies.
Work with ISSOs/ISSMs and technical teams to interpret findings, recommend remediation, and ensure timely vulnerability closure.
Analyze system changes, configuration updates, and vulnerability outputs to determine authorization impacts and risk-level adjustments.
Support ATO maintenance by tracking assessments, evidence, and documentation for RMF lifecycle execution.
Prepare and deliver clear, risk-focused briefings to system owners and stakeholders on audit findings and compliance status.

Benefits

Comprehensive benefits and wellness packages.
401(k) with company match.
Competitive pay and paid time off.
Medical plan options, some with Health Savings Accounts.
Dental plan options and vision plan.
Full flex work weeks where possible.
Paid time off plans that include vacation, sick and personal time, holidays, and paid parental, military, bereavement, and jury duty leave.
Short- and long-term disability benefits, life insurance, accidental death and dismemberment, personal accident, critical illness, and business travel and accident insurance are provided or available.
AI-powered career tool identifying career steps and learning opportunities.
Internal mobility team focused on helping employees achieve career goals.