ISSO: RMF/ATO Security Lead for DoD & IC

IBM Computing; Reston (VA); On-site; USD 120,000 - 180,000; Full time

Job summary

IBM Consulting in Reston, Virginia is seeking an experienced Information System Security Officer (ISSO) to lead RMF ATO activities, coordinate with architects, and maintain the security posture across a DoD/IC-ready system.

The role requires TS/SCI CI Poly, Security+ and strong technical writing, risk management, and cross-functional collaboration. You will drive security controls, continuous monitoring, and POA&M management in a fast-paced government-focused environment.

Qualifications

• Experience leading RMF ATO programs.
• Must possess TS/SCI CI Poly clearance on day 1.
• Strong technical writing and communication skills.
• Knowledge of NIST RMF and SP 800-53 Rev. 5.
• Security+ certification required.
• Experience with risk management and continuous monitoring.

Responsibilities

• Plan, execute, and maintain system accreditation activities to achieve and sustain ATO.
• Serve as primary security lead for system security posture and controls.
• Coordinate across cross-functional teams to develop security documentation and assessments.
• Oversee risk management, continuous monitoring, and POA&M management.

Skills

RMF Authorization

Self-starter

Technical writing

NIST SP 800-53 Rev.5

Security+

TS/SCI CI Poly

Risk management

POA&M management

Vulnerability management

Job description

IBM Consulting in Reston, Virginia is seeking an experienced Information System Security Officer (ISSO) to lead RMF ATO activities, coordinate with architects, and maintain the security posture across a DoD/IC-ready system.

The role requires TS/SCI CI Poly, Security+ and strong technical writing, risk management, and cross-functional collaboration. You will drive security controls, continuous monitoring, and POA&M management in a fast-paced government-focused environment.