Senior ISSE – Top Secret Clearance Required

Agile Defense, LLC; Washington; On-site; USD 140,000 - 155,000; Full time

Benefits offered by this job

Health Insurance

Life Insurance

Paid Time Off

Holiday Pay

Short-term Disability

Long-term Disability

Retirement

Learning and Development

Job summary

Agile Defense is seeking an Information System Security Engineer (ISSE) Senior to support FBI under Objective 2: ISSO/ISSE Program Management. The ISSE will provide security engineering to categorize FBI IT systems by architecture, hosting, data sensitivity, and mission requirements.

This role requires a Top Secret clearance and certification(s) such as CCISO, CISA, CISM, CISSP, or equivalent. You will collaborate with ISSOs, system owners, architects, and leadership to ensure scalable,

Qualifications

• Active Top Secret clearance required.
• Experience assessing complex systems for security architecture, control implementation, and risk categorization.
• Strong knowledge of FIPS-199, NIST SP 800-37, NIST SP 800-53, CNSS 1253, RMF, and system security engineering principles.
• Experience with on-premises and cloud environments (Azure, AWS, or hybrid).
• Ability to map findings to staffing, security, and compliance requirements.
• Strong communication skills for technical and non-technical stakeholders.

Responsibilities

• Support design and maintenance of FBI IT system categorization methodology.
• Assess system architecture, interfaces, hosting models, and security control implications.
• Analyze traditional, hybrid, and cloud-based systems to determine support levels.
• Translate attributes into labor mapping aligned to ITSSS labor categories and seniority.
• Contribute to RMF and security engineering activities and documentation.

Skills

Top Secret clearance

Security architecture

NIST RMF

CNSS 1253

Cloud environments (Azure/AWS)

Security documentation

Communication skills

Education

Bachelor's degree in Information Security, Engineering, or related field

CCISO, CISA, CISM, CISSO, CISSP, CISSP-ISSEP, CPTE, CySA+, FITSP-A, GCSA, GSLC, or GSNA

8+ years of experience or equivalent substitution

Tools

GRC platforms

Automation workflows

Job description

Agile Defense is seeking an Information System Security Engineer (ISSE) Senior to support FBI under Objective 2: ISSO/ISSE Program Management. The ISSE will provide security engineering to categorize FBI IT systems by architecture, hosting, data sensitivity, and mission requirements.

This role requires a Top Secret clearance and certification(s) such as CCISO, CISA, CISM, CISSP, or equivalent. You will collaborate with ISSOs, system owners, architects, and leadership to ensure scalable,