Information System Security Officer, (ISSO)

Cinteot Inc.; Fort Meade (MD); On-site; USD 120,000 - 150,000; Full time

Benefits offered by this job

Complete Insurance Coverage

401k with Company Contribution

Tuition Reimbursement

Generous Paid Time Off

Job summary

Cinteot Inc. is seeking an experienced Information System Security Officer (ISSO) Level 3 to support the DISA Internet Enterprise under CTAS.

The role focuses on RMF/DIACAP accreditation, STIG/SRG compliance, and the preparation of accreditation packages. You will mentor junior ISSOs, coordinate with ISSMs and AOs, manage vulnerability findings with ACAS/HBSS, and produce SSPs, SARs, and POA&Ms in eMASS to ensure timely ATOs.

Qualifications

• Bachelor's degree in Cybersecurity, IT, or related field.
• DoD 8140.03 / 8570.01-M baseline certification (e.g., Security+, CISSP, CISM).
• 7+ years in cybersecurity engineering, RMF/DIACAP accreditation, and DoD documentation.

Responsibilities

• Lead RMF/AA artifacts: SSPs, SARs, POA&Ms, CM records, testing docs.
• Implement DISA STIGs/SRGs across technical baselines.
• Analyze vulnerability scans with ACAS/HBSS and coordinate remediation.
• Prepare acc package in eMASS for timely submissions.
• Conduct ST&E activities and document risk posture.
• Support CCRI/SAV/CVPA with corrective action plans and closures.
• Mentor junior ISSOs and interface with government stakeholders.
• Deliver Policy Compliance and Risk Assessment reports.

Skills

RMF implementation

DIACAP accreditation

Vulnerability analysis

Accreditation documentation

Team mentorship

Education

Bachelor's degree in Cybersecurity

Master’s degree in Cybersecurity

Tools

ACAS

HBSS

CMRS

eMASS

Job description

Cinteot Inc. is a small IT services company that specializes in cybersecurity, Big Data/databases, software development, systems testing, STIG Compliance training, closed-circuit television/security cameras and access controls, and construction/facilities.

We are a Woman-owned, SBA Certified 8(a), and HUBZone company.

Position Summary

The Information System Security Officer (ISSO) provides senior-level cybersecurity engineering and compliance support to the Defense Information Systems Agency (DISA) Internet Enterprise (IE) under the CTAS Task Order. This role is responsible for ensuring mission systems achieve and sustain Authorization to Operate (ATO) through implementation of the Risk Management Framework (RMF) and transition from legacy DIACAP requirements. The ISSO – Level 3 acts as both a technical and compliance leader, bridging vulnerability management, STIG/SRG application, and documentation development to create complete and accurate accreditation packages. This position serves as a senior-level resource, providing mentorship to mid-level and junior ISSOs, while interfacing with Government stakeholders, Information System Security Managers (ISSMs), and Authorizing Officials (AOs).

Key Responsibilities

• Leading the development, maintenance, and validation of RMF and A&A artifacts, including System Security Plans (SSPs), Security Assessment Reports (SARs), Plans of Action and Milestones (POA&Ms), configuration management records, and testing documentation.
• Implementing and validating compliance with DISA Security Technical Implementation Guides (STIGs) and Security Requirements Guides (SRGs) to maintain technical baselines across supported systems.
• Managing and analyzing results from vulnerability scanning and compliance tools such as ACAS, HBSS, and CMRS, and ensuring timely remediation of findings in accordance with IAVM directives.
• Preparing and submitting comprehensive accreditation packages in eMASS, ensuring accuracy, completeness, and timeliness of submissions to meet contract and PWS requirements.
• Conducting and documenting Security Test and Evaluation (ST&E) activities, ensuring objective assessment of control implementation and risk posture.
• Supporting and preparing for Command Cyber Readiness Inspections (CCRI), Security Assessment Visits (SAV), and Cooperative Vulnerability Penetration Assessments (CVPA) by creating corrective action plans, briefing results, and tracking closure of findings.
• Providing mentorship and guidance to junior ISSOs, ensuring proper interpretation of DoD cybersecurity policy and consistent application of standards across the team.
• Contributing to recurring deliverables such as Policy Compliance Reports, Risk Assessment Reports, and Directorate-level cybersecurity briefings, ensuring all outputs meet QASP Acceptable Quality Levels (AQLs).

Required Qualifications

• Bachelor’s degree in Cybersecurity, Information Technology, or related field.
• Must hold and maintain an appropriate DoD 8140.03 / 8570.01-M certification baseline for this labor category (e.g., Security+, CISSP, CISM, or equivalent as required).
• At least 7 years of experience in cybersecurity engineering, RMF/DIACAP accreditation, and compliance documentation in DoD environments.
• Expertise in the application of DISA STIGs/SRGs, ACAS/HBSS vulnerability analysis, and eMASS package preparation.
• Strong written and verbal communication skills, with demonstrated experience producing accreditation documentation and presenting risk findings to senior stakeholders.

Desired Qualifications

• Master’s degree in Cybersecurity or related discipline.
• Experience supporting DISA programs and preparing for CCRI inspections.
• Advanced certifications such as CISSP-ISSAP or CISM.

Clearance Requirement

Active Top Secret

Benefits

• Complete Insurance Coverage
• 401k with Company Contribution
• Tuition Reimbursement
• Generous Paid Time Off (including your birthday!)

Cinteot is an Equal Opportunity Employer

All qualified applicants will receive consideration for employment without regard to race, sex, color, religion, sexual orientation, gender identity, national origin, protected veteran status, or on the basis of disability.