Senior Cybersecurity Analyst: RMF/ATO Expert (On-Site)

MSCCN; Alexandria (VA); On-site; USD 104,000 - 218,000; Full time

Job summary

MSCCN is seeking a Cyber Security Analyst/ISSM to support the JIATF-401 in a high-tempo joint environment. You will manage RMF activities, develop ATO packages, and maintain documentation to ensure authorization readiness across cloud, hybrid, and vendor-supported systems.

The role requires hands-on experience with RMF/ATO processes, coordination across multiple stakeholders, and the ability to push authorization tasks to completion in a dynamic DoD context.

Qualifications

• Bachelor’s degree in cybersecurity, information assurance, information systems, information technology, computer science, or a related field.
• Direct experience supporting RMF and ATO activities for Department of War (DoW) information systems.
• Practical experience in an ISSM/ISSO/cybersecurity analyst role with responsibility for package development and sustainment.
• Experience preparing, reviewing, and maintaining cybersecurity documentation required for authorization packages.
• Working knowledge of security controls, vulnerability management, and plan of action.

Responsibilities

• Execute day-to-day cybersecurity and RMF activities for assigned systems, including ATO packages and supporting documentation.
• Serve as hands-on cybersecurity practitioner for system authorization efforts (initial authorization, reauthorization, changes, continuous monitoring).
• Coordinate with system owners, PMOs, engineers, assessors, security control providers, and vendors to collect cybersecurity artifacts.
• Review and track implementation of security controls, POAs, findings, vulnerabilities, and remediation activities.
• Support RMF documentation, including inventories, boundary descriptions, control implementations, diagrams, and evidence.
• Assist with cybersecurity requirements for cloud environments, externally hosted services, and vendor-supported systems.
• Help ensure cybersecurity considerations are integrated through design, development, fielding, operation, and upgrade activities.
• Support acquisition and program documentation related to cybersecurity strategies, compliance, and authorization readiness.
• Coordinate across Joint, interagency, and organizational stakeholders on policy/process differences affecting authorization and interoperability.
• Track action items, suspense dates, dependencies, and documentation gaps to move packages efficiently through authorization.

Education

Bachelor’s degree in cybersecurity, information assurance, information systems, information technology, computer science, or a related field.

Job description

MSCCN is seeking a Cyber Security Analyst/ISSM to support the JIATF-401 in a high-tempo joint environment. You will manage RMF activities, develop ATO packages, and maintain documentation to ensure authorization readiness across cloud, hybrid, and vendor-supported systems.

The role requires hands-on experience with RMF/ATO processes, coordination across multiple stakeholders, and the ability to push authorization tasks to completion in a dynamic DoD context.