Information Systems Security Officer (ISSO)

DAn Solutions; Washington (District of Columbia); On-site; USD 120,000 - 180,000; Full time

Job summary

DAn Solutions, Inc. is seeking an experienced ISSO to support RMF activities, maintain security documentation, and coordinate with government stakeholders.

The role focuses on ATOs, continuous monitoring, and vulnerability remediation across DoD and Intelligence Community environments. The candidate will collaborate with system owners, developers, and infrastructure engineers to ensure compliance with stringent IC requirements, manage evidence in eMASS, review scans, and prepare security reports

Qualifications

• Active TS/SCI clearance with CI Polygraph.
• Bachelor's degree in a technical or managerial discipline with at least 5 years of relevant experience.
• Alternatively, a high school diploma or equivalent and more than 7 years of relevant experience.
• Previous Intelligence Community experience.
• Experience performing ISSO or comparable security authorization responsibilities.
• Experience supporting RMF and system authorization packages.
• Proficiency with eMASS and ACAS.
• Experience reviewing vulnerability assessments and coordinating remediation.
• Knowledge of system boundaries, security controls, access management, and continuous monitoring.
• Strong technical writing and communication skills.
• Ability to meet applicable cybersecurity workforce qualification requirements.

Responsibilities

• Support RMF activities to obtain and maintain system Authorizations to Operate (ATOs).
• Develop and maintain System Security Plans, control implementation statements, and authorization documentation.
• Coordinate with System Owners, ISSMs, assessors, and engineering teams.
• Maintain POA&Ms and track vulnerability remediation.
• Manage security documentation and evidence within eMASS.
• Review ACAS scans, security configuration assessments, and application security findings.
• Evaluate the security impact of system changes, releases, and infrastructure modifications.
• Support continuous monitoring and ongoing authorization activities.
• Review access controls, privileged access, audit logging, and configuration baselines.
• Assist with incident reporting, investigations, and corrective actions.
• Prepare security reports and brief government stakeholders.

Skills

TS/SCI clearance

CI polygraph

Technical writing

Communication skills

RMF knowledge

Education

Bachelor's degree in a technical or managerial discipline

High school diploma with 7+ years experience

Tools

eMASS

ACAS

Job description

REQUIRES AN ACTIVE/EXISTING TS/SCI WITH CI POLYGRAPH

Location: Charleston, SC or Washington, DC

Position Overview

DAn Solutions is seeking an experienced Information Systems Security Officer (ISSO) to support the authorization, compliance, and continuous security monitoring of mission applications, cloud infrastructure, and enterprise services.

The successful candidate will collaborate with government security personnel, system owners, developers, and infrastructure engineers to maintain security documentation, evaluate risks, and support compliance with DoD and Intelligence Community requirements.

Key Responsibilities

• Support RMF activities to obtain and maintain system Authorizations to Operate (ATOs).

• Develop and maintain System Security Plans, control implementation statements, and authorization documentation.

• Coordinate with System Owners, ISSMs, assessors, and engineering teams.

• Maintain POA&Ms and track vulnerability remediation.

• Manage security documentation and evidence within eMASS.

• Review ACAS scans, security configuration assessments, and application security findings.

• Evaluate the security impact of system changes, releases, and infrastructure modifications.

• Support continuous monitoring and ongoing authorization activities.

• Review access controls, privileged access, audit logging, and configuration baselines.

• Assist with incident reporting, investigations, and corrective actions.

• Prepare security reports and brief government stakeholders.

Required Qualifications

• Active TS/SCI clearance with CI Polygraph.

• Bachelor's degree in a technical or managerial discipline and at least 5 years of relevant practical experience.

• Alternatively, a high school diploma or equivalent and more than 7 years of relevant practical experience.

• Previous Intelligence Community experience.

• Experience performing ISSO or comparable security authorization responsibilities.

• Experience supporting RMF and system authorization packages.

• Proficiency with eMASS and ACAS.

• Experience reviewing vulnerability assessments and coordinating remediation.

• Knowledge of system boundaries, security controls, access management, and continuous monitoring.

• Strong technical writing and communication skills.

• Ability to meet applicable cybersecurity workforce qualification requirements.

Preferred Qualifications

• DoD 8140/8570 IAM Level II or III qualifications.

• Experience with ICD 503 authorization processes.

• AWS GovCloud, Kubernetes, or OpenShift security experience.

• Familiarity with DevSecOps security testing and automated evidence collection.

• Experience implementing STIGs and security configuration assessments.

• Knowledge of ICAM, PKI, Zero Trust, and cloud security.

• CISSP, CGRC, or comparable certifications.

Work Location

Full-time, on-site support at a government facility in Charleston, SC or the National Capital Region.

Salary Range Disclaimer:The posted salary range represents the good-faith minimum and maximum compensation DAn Solutions expects to pay for this position. The position may be filled at different Labor Category (LCAT) levels depending on the selected candidate's qualifications and applicable contract requirements. Final compensation within the posted range will be determined based on the applicable LCAT and factors including education, relevant experience, certifications, and other required qualifications