Information System Security Officer

Type of Requisition:

Regular

Clearance Level Must Currently Possess:

Secret

Clearance Level Must Be Able to Obtain:

Secret

Public Trust/Other Required:

None

Job Family:

Cyber and IT Risk Management

Job Qualifications:

Skills:

DISA STIG, NIST Risk Management Framework, Operations Security

Certifications:

None

Experience:

3 + years of related experience

US Citizenship Required:

Yes

Job Description:

Help safeguard critical government systems by applying your hands-on ISSM/ISSO experience to security governance, risk evaluation, and compliance oversight. As an Information Systems Security Officer at GDIT, you will leverage your background managing RMF controls, system documentation, and continuous monitoring activities to deliver thorough, accurate, and mission‑focused security assessments.

This role is ideal for cybersecurity professionals who have previously served as an ISSM or ISSO and are seeking to transition into a dedicated risk, audit, and compliance position where they can influence security posture across multiple systems and programs.

MEANINGFUL WORK AND PERSONAL IMPACT

As an Information System Security Officer, the work you do at GDIT will have a direct and measurable impact on our customer’s mission. You’ll help ensure the integrity, security, and compliance of their IT systems by identifying potential risks, validating critical controls, and supporting continuous improvement efforts. Your work will enhance operational resilience and enable the customer to execute their mission with confidence.

● Conduct security audits and RMF control assessments by applying your deep understanding gained through previous ISSO/ISSM responsibilities.

● Review, validate, and enhance security artifacts such as SSPs, POA&Ms, and continuous monitoring deliverables.

● Evaluate system security controls fore 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 actions, and ensure timely closure of vulnerabilities.

● 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 needed for successful RMF lifecycle execution.

● Ability to prepare and deliver clear, risk focused briefings to system owners and stakeholders regarding audit findings and compliance status.

WHAT YOU’LL NEED TO SUCCEED
Bring your cyber expertise and drive for innovation to GDIT. The ISSO must have:
● Education: Bachelors degree or 4+ years of additional work experience/training/education in lieu of a degree
● Experience: 3+ years of related experience as a prior ISSO/ISSM
● Certifications: IAT II (Security +, SSCP, CCNA Security)

● Technical skills: Strong understanding of NIST SP 800-53, DoW cybersecurity requirements, and control implementation/assessment practices. Familiarity with Windows/Linux environments, vulnerability tools, and security baselines.
● Security clearance: Must have an active Secret clearance in order to be considered

● US citizenship required
● Role requirements: Onsite, 5 days/week

GDIT IS YOUR PLACE
At GDIT, the mission is our purpose, and our people are at the center of everything we do.
● Growth: AI-powered career tool that identifies career steps and learning opportunities.
● Support: An internal mobility team focused on helping you achieve your career goals.
● Rewards: Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time off.
● Community: Award-winning culture of innovation and a military-friendly workplace.

OWN YOUR OPPORTUNITY
Explore a career in cyber at GDIT and you’ll find endless opportunities to grow alongside colleagues who share your focus on defending and protecting what matters.

#GDITPriority

The likely salary range for this position is $81,349 - $100,050. 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:

Less than 10%

Telecommuting Options:

Onsite

Work Location:

USA VA Falls Church

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.

Our Identity Verification Process:

As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during virtual interviews. We reserve the right to take your picture to verify your identity and prevent fraud. By proceeding, you authorize the collection, processing, and use of your biometric data for identity verification and security purposes.

About Our Work:

We are GDIT. A global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense and intelligence community. Our 26,000 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 mission-ready capabilities in AI, cloud, cyber and software development.

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