Senior ISSO & RMF Lead for High-Value Systems (Remote/NCR)

OneZero Solutions; Washington (District of Columbia); Remote; USD 150,000 - 190,000; Full time

Benefits offered by this job

Health insurance

Dental insurance

Vision insurance

Life insurance

401(k) with company matching

Paid time off

Holidays

Employee referral program

Educational assistance

Job summary

OneZero Solutions LLC is seeking an experienced SME – Information Security Analyst to serve as ISSO of record for high-value assets and cloud/hybrid systems. You will lead RMF steps, develop and maintain authorization artifacts, and mentor junior analysts.

The role requires a final SECRET clearance, US citizenship, and strong writing and communication skills; remote within NCR and occasional travel.

Qualifications

• Ten (10)+ years of information security experience, incl. six (6)+ years as an ISSO or A&A lead for federal information systems.
• Expert working knowledge of NIST SP 800-37 Rev. 2, SP 800-53/53A Rev. 5, SP 800-60, SP 800-34, and FIPS 199/200; experience authoring complete authorization packages.

Responsibilities

• Serve as ISSO of record for a portfolio of 3–4 HVA or complex systems.
• Lead RMF Steps 1–3 with proper categorization and control overlays.
• Develop and maintain full authorization artifacts (SSP, POA&M, etc.).
• Lead security control review meetings with assessors and track findings.
• Direct security operations contractors to obtain evidence and remediate.
• Maintain POA&M in GRC with monthly updates and closures.
• Review iPost scores and remediate high-risk findings.
• Monitor vulnerability/KEV/STIG results and address critical items.

Skills

ISSO lead

RMF end-to-end

NIST SP 800-37/53

Security control assessment

POA&M management

Vulnerability management

Technical writing

GRC tooling

CISSP/CISM

Education

Bachelor's degree in CS/IT/Cybersecurity

Master's degree

Tools

ArchAngel

iPost

Tenable

WIZ

Job description

OneZero Solutions LLC is seeking an experienced SME – Information Security Analyst to serve as ISSO of record for high-value assets and cloud/hybrid systems. You will lead RMF steps, develop and maintain authorization artifacts, and mentor junior analysts.

The role requires a final SECRET clearance, US citizenship, and strong writing and communication skills; remote within NCR and occasional travel.