Remote Senior ISSO & RMF Lead

OneZero Solutions; Washington (District of Columbia); Remote; USD 110,000 - 150,000; Full time

Job summary

OneZero Solutions is seeking a Senior Information Security Analyst to serve as ISSO for 6–8 moderate-baseline systems, owning the RMF cycle and remediation efforts. The role requires guiding A&A activities, maintaining SSP/POA&Ms, and coordinating with the SOC and system owners to ensure continuous compliance.

The candidate should hold an active SECRET clearance, possess strong technical writing skills, and have extensive experience with NIST RMF and government security requirements.

Qualifications

• 7+ years in information security with federal A&A experience.
• CISSP/CISM/CAP/CISA or equivalent DoD IAM Level II+
• Active SECRET clearance; U.S. citizenship.

Responsibilities

• Serve as ISSO for 6–8 Moderate-baseline systems and own their RMF lifecycle.
• Execute RMF Steps 1–3 with proper documentation and evidence.
• Maintain POA&Ms and ensure timely updates in the GRC tool.
• Coordinate with SOC, conduct remediation validation, and support audits.

Skills

Information security

Technical writing

Stakeholder coordination

Risk assessment

Education

Bachelor's degree in Computer Science

Tools

ArchAngel

iPost

Nessus

Job description

OneZero Solutions is seeking a Senior Information Security Analyst to serve as ISSO for 6–8 moderate-baseline systems, owning the RMF cycle and remediation efforts. The role requires guiding A&A activities, maintaining SSP/POA&Ms, and coordinating with the SOC and system owners to ensure continuous compliance.

The candidate should hold an active SECRET clearance, possess strong technical writing skills, and have extensive experience with NIST RMF and government security requirements.