Lead ISSO Cybersecurity Engineer

Booz Allen Hamilton

. Own and sustain RMF governance activities for DoD information systems .

Posted 9/15/2026full-timeAberdeen Proving Ground • Maryland • United StatesSenior💰 $112,800 - $257,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive experience in RMF governance and lifecycle management for DoD information systems, with a strong focus on security controls, risk management, and compliance with NIST standards. Proficient in technical writing, evidence validation, and the administration of security tools and platforms.

Highest-signal resume keywords

RMF GovernanceEMASS AdministrationNIST SP 800-53 Rev. 5DoD 8570 CertificationTS/SCI Clearance

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Risk Management Framework (RMF)Security Impact AssessmentsSTIG ValidationVulnerability AssessmentSystem Architecture DesignTCP/IP NetworkingAWS Cloud AdministrationContainerizationTechnical WritingEvidence Validation

Soft Skills

CollaborationAnalytical ThinkingAttention to DetailCommunication

Tools & Technologies

EMASSACASNessusSCAPSCC

Certifications & Qualifications

Security+CISSPCASP+

Industry Keywords

DoD Authorization PracticesPOA&M ManagementIdentity and Access ManagementNetwork Security ConceptsInterconnection Documentation

Tech Stack

Tools & technologies

AWSCloudCyber SecurityFirewallsLinuxTypeScript

About the role

Key responsibilities & impact

Own and sustain RMF governance activities for DoD information systems
Manage RMF lifecycle activities and authorization-package maintenance
Maintain SSP, ConMon Plan, IRP, CMP, control narratives, diagrams, inventories, and supporting evidence
Perform eMASS package administration and quality assurance
Coordinate monthly POA&M updates, evidence validation, milestone tracking, and closure
Analyze NIST SP 800-53 Rev. 5 controls and translate requirements into system-specific implementation statements
Develop Security Impact Assessments for proposed system and configuration changes
Develop or coordinate ISAs, MOAs, and MOUs for system interconnections
Support T-Req and data-connection reviews and coordinate with ISSM, engineers, and system owners
Prepare packages for continuous monitoring and authorization reviews with stakeholders
Analyze source, destination, ports, protocols, services, data sensitivity, encryption, authentication, boundary protection, and mission need
Identify required security artifacts, approvals, firewall and network actions, and interconnection documentation
Coordinate with ISSM, network and security engineering, system owners, and requestors
Maintain status, metrics, aging reports, and escalation paths
Identify high-risk or nonstandard connection requests for deeper assessment

Requirements

What you’ll need

8+ years of experience with DoD RMF or cybersecurity
Experience using eMASS to address security controls, create POA&Ms, and upload artifacts such as STIG checklists or ACAS scans
Experience administering Windows, Linux, AWS Cloud, and containerization systems and software configuration
Knowledge of NIST SP 800-37, NIST SP 800-53 Rev. 5, DoDI 8510.01, POA&M management, and DoD authorization practices
Knowledge of TCP, IP, ports, protocols, firewalls, segmentation, PKI, encryption, identity and access management, and DoD network security concepts
Ability to validate STIG and vulnerability findings, false positives, risk acceptances, mitigations, remediation evidence, and closure packages using ACAS, Nessus scans, STIGs, SCAP, SCC, vulnerability results, configuration reviews, system queries, and manual procedures
Ability to analyze system boundaries, data flows, external interfaces, interconnections, inherited controls, and common-control dependencies
TS/SCI clearance required
Bachelor's degree in a technical field such as Engineering or Cyber
DoD 8570- or 8140-aligned certification such as Security+, CISSP, or CASP+
Experience with ticket and workflow platforms and disciplined documentation
Experience with technical writing and evidence-validation skills
Ability to read and design network and system architecture diagrams and understand technical control implementation
Ability to evaluate ICAM controls, including MFA, PKI/CAC authentication, privileged access, account management, separation of duties, and least privilege
Ability to distinguish routine connectivity from connections that alter authorization boundary or risk posture

Benefits

Comp & perks

Health benefits
Life insurance
Disability benefits
Financial benefits
Retirement benefits
Paid leave
Professional development
Tuition assistance
Work-life programs
Dependent care
Recognition awards program for exceptional performance and superior demonstration of values