Senior Information Security Officer (ISSO) — Remote

Chenega Corporation; Washington (District of Columbia); Hybrid; USD 120,000 - 150,000; Full time

Job summary

Chenega MIOS is seeking an Information System Security Officer (ISSO) to lead security for the GSAFleet.gov environment. The role involves ensuring security, compliance, accreditation, and continuous protection while coordinating secure design, access control, and vulnerability remediation across development and operations.

The ISSO will manage security-plan inputs, assessment materials, and ATO documentation, review changes for security impact, and support incident response, audits, and

Qualifications

• Bachelor’s Degree in a related field.
• 10+ years developing, implementing, and managing security controls for large-scale information systems.
• Must be able to undergo a Tier 2S Investigation and receive a favorable outcome.
• Successfully pass background and drug screening.

Responsibilities

• Plan, implement, assess, and monitor security controls throughout development and operations.
• Coordinate secure design, access control, vulnerability scanning, remediation, and security checks in CI/CD workflows.
• Develop and maintain security-plan inputs, control implementation evidence, assessment materials, POA&Ms, and authorization-package documentation to support ATO.
• Review application, infrastructure, data, and interface changes for security and privacy impact.
• Support security incidents, audits, continuous monitoring, and ATO maintenance; advise teams on corrective actions.
• Respond to and coordinate resolution of information-security incidents, breaches, and other security events affecting GSAFleet.gov.
• Coordinate security deliverables and ensure vulnerabilities within the contractor scope are addressed.
• Other duties as assigned

Skills

FISMA

NIST RMF

DevSecOps

Cloud security

Security controls

Education

Bachelor’s Degree

Job description

Chenega MIOS is seeking an Information System Security Officer (ISSO) to lead security for the GSAFleet.gov environment. The role involves ensuring security, compliance, accreditation, and continuous protection while coordinating secure design, access control, and vulnerability remediation across development and operations.

The ISSO will manage security-plan inputs, assessment materials, and ATO documentation, review changes for security impact, and support incident response, audits, and