Senior ISSM - RMF Lead for Classified Systems

LMI Government Consulting; Washington (District of Columbia); On-site; USD 110,000 - 180,000; Full time

Job summary

LMI Government Consulting in Washington, DC is seeking an Information System Security Manager (ISSM) to lead security authorization and continuous monitoring for enterprise IT capabilities. You will coordinate with system owners, engineers, and government stakeholders to ensure secure design, documentation, authorization, operation, and sustainment in accordance with requirements.

Responsibilities include leading RMF implementation, developing security strategies for multi-enclave environments,

Qualifications

• BS or higher in Cybersecurity, CS, IT, Engineering or related field
• 8+ years cybersecurity, IA, security authorization, or RMF experience
• Experience leading security authorization for complex enterprise, multi-enclave systems
• Strong knowledge of NIST SP 800-37/800-53, CNSSI 1253, and gov/defense security requirements
• Experience with system security plans, control evidence, assessments, and monitoring deliverables
• Experience in SCIF or classified environments and advising leadership on cybersecurity risk

Responsibilities

• Lead security authorization activities across the system lifecycle
• Develop security authorization strategies and roadmaps for classified and unclassified systems
• Coordinate security plans, evidence, action plans, milestones, and monitoring artifacts
• Interpret and apply NIST CS guidance and federal requirements
• Advise stakeholders on cyber risk, remediation priorities, and risk acceptance
• Integrate security requirements into architecture, engineering, and operations
• Oversee vulnerability, configuration, and compliance monitoring and remediation prioritization
• Coordinate assessments, reviews, and authorization milestones
• Automate evidence collection, validation, reporting, and tracking while preserving auditability

Skills

Risk Management Framework

NIST SP 800-37/800-53

Security risk assessment

Security authorization lifecycle

Communication with stakeholders

Security automation

Continuous monitoring

Education

Bachelor's degree in Cybersecurity or related field

Job description

LMI Government Consulting in Washington, DC is seeking an Information System Security Manager (ISSM) to lead security authorization and continuous monitoring for enterprise IT capabilities. You will coordinate with system owners, engineers, and government stakeholders to ensure secure design, documentation, authorization, operation, and sustainment in accordance with requirements.

Responsibilities include leading RMF implementation, developing security strategies for multi-enclave environments,