Senior Cyber ISSE – RMF/ICD-503 Expert (TS/SCI)

B/CORE; Herndon (VA); On-site; USD 180,000 - 205,000; Full time

Benefits offered by this job

Health/Dental/Vision

401(k)

PTO

Stipends

Referral bonuses

Job summary

BCore seeks an experienced Cyber Information Systems Security Engineer (ISSE) to support a Government client in Herndon, VA. The role focuses on RMF and ICD-503, multi-tasking, and proactive accreditation optimization within the A&A lifecycle.

The candidate will collaborate with ISSM, auditors, and engineers to maintain authorization readiness, bridge technical and security language, and deliver secure, compliant solutions in a fast-paced environment.

Qualifications

• Minimum 11 years of ISSE experience or equivalent.
• Bachelor's or Master’s Degree preferred in related fields.
• Experience with RMF and ICD-503 documentation and A&A life cycle.

Responsibilities

• Lead RMF/ICD-503 activities for government missions and A&A efforts.
• Coordinate across organizations to achieve ATD, IATT, and ATO milestones.
• Interface with ISSM, Security Controls Assessor, and Auditors for risk closure.
• Develop Plans of Actions and Milestones (POA&M) and track remediation.

Skills

RMF Knowledge

ICD-503

Policy Artifacts

Communication skills

Independent worker

Risk Management

A&A processes

Education

Bachelor's or Master’s Degree

Tools

Greenlight

Rapid7

WebInspect

Splunk

AWS

Google Cloud

Azure

Job description

BCore seeks an experienced Cyber Information Systems Security Engineer (ISSE) to support a Government client in Herndon, VA. The role focuses on RMF and ICD-503, multi-tasking, and proactive accreditation optimization within the A&A lifecycle.

The candidate will collaborate with ISSM, auditors, and engineers to maintain authorization readiness, bridge technical and security language, and deliver secure, compliant solutions in a fast-paced environment.