National-Defense ISSE: Security Architecture & RMF Lead

RPMGlobal; Annapolis (MD); On-site; USD 120,000 - 160,000; Full time

Job summary

Base-2 Solutions is seeking an Information Systems Security Engineer (ISSE) to design, implement, and assess security for complex systems supporting national defense and mission-critical operations.

The role requires expertise in risk management, RMF, NIST SP 800-53, C&A, and security testing across Linux, Windows, and cloud platforms, with certification readiness and collaboration with government customers.

Qualifications

• Experience with NIST SP 800-53, RMF, ICD 503, CNSS, DoD STIGs.
• Security tools: ACAS/Nessus/Tenable, Splunk, Wireshark, HBSS, McAfee ePO.
• Security technologies: Firewalls, IDS/IPS, SIEMs, VPNs, PKI, MFA.
• Documentation: SSPs, POA&Ms, SARs, SCTM.
• OS and virtualization: Linux/Unix/Windows, VMware/Hyper-V.
• Cloud security: AWS/Azure/Google Cloud.
• Encryption: TLS/SSL, IPsec, VPN, PKI.
• Security testing: Nmap, Metasploit, Burp Suite, Kali Linux.
• Scripting: Python, PowerShell, Bash.
• SDLC, software assurance, secure coding.
• Tooling: JIRA, Confluence, ServiceNow.
• Certs: CISSP, CAP, CEH, Security+, AWS Security Specialty, or equivalent.

Responsibilities

• Develops, implements, and maintains security solutions for complex systems.
• Conducts system security analysis, risk assessments, and vulnerability assessments.
• Supports security architecture and RMF-based artifacts.
• Collaborates with architects, software, and network engineers to embed security requirements.
• Develops SSPs, SARs, and RMF documentation.
• Performs continuous monitoring and ensures compliance with standards.
• Recommends improvements and addresses security incidents.
• Engages in testing, evaluation, and C&A activities.
• Interacts with government customers to communicate security strategies.

Skills

NIST RMF

DoD/IC policies

Threat analysis

Vulnerability assessments

System security design

Scripting (Python)

JIRA/Confluence

Tools

ACAS

Nessus

Tenable

Splunk

Wireshark

HBSS

McAfee ePO

Job description

Base-2 Solutions is seeking an Information Systems Security Engineer (ISSE) to design, implement, and assess security for complex systems supporting national defense and mission-critical operations.

The role requires expertise in risk management, RMF, NIST SP 800-53, C&A, and security testing across Linux, Windows, and cloud platforms, with certification readiness and collaboration with government customers.