Information System Security Engineer (ISSE)
Confirmed on the employer's own hiring board on Oct 6, 2026. First seen by Alion on Oct 6, 2026. Agiledefense scores B on the Alion truth index.
Requisition #: 1914
Job Title: Information System Security Engineer (ISSE)
Location: Washington, D.C.
Clearance Level: TS with SCI eligibility required to start
Required Certification(s): One of the following: CISSP, CASP+, CISM, CCSP, CAP, or AWS/Azure security certifications
Job Description
- Support design and maintenance of a methodology to categorize FBI IT systems based on:
Architecture and technology stack
Security classification level
FIPS-199 impact level
National Security System designation
Hosting environment (on-premises, Azure, AWS)
CNSS 1253 overlays
Data sensitivity and data types
Mission/business function
System complexity and integration dependencies
- Assess system architecture, interfaces, hosting models, and security control implications to help determine appropriate ISSO/ISSE support levels.
- Analyze traditional, hybrid, and cloud-based systems to distinguish technical support requirements.
- Support accurate grouping of systems based on risk, operational impact, engineering effort, and compliance obligations.
- Translate technical system attributes into labor mapping recommendations aligned to ITSSS labor categories and seniority levels.
- Partner with ISSOs and program leadership to ensure categorization decisions are technically sound, repeatable, and well documented.
- Contribute to documentation supporting system assignments, engineering rationale, and support models.
- Support chargeback and cost recovery efforts by aligning technical support effort with system and division-level reporting.
- Assist with automated or semi-automated workflows used for categorization, reporting, and cost assignment.
- Support updates to reporting tools and technical logic when policy, technology, or organizational changes occur.
- Contribute to RMF and system security engineering activities, including:
Security architecture reviews
Control implementation analysis
Inheritance considerations
Boundary analysis
System interconnection analysis
Technical documentation support
- Review and apply NIST, CNSS, and FBI guidance to ensure methodology remains compliant and current.
Support continuous improvement of the categorization framework as new technologies and requirements emerge.
Agile Defense is seeking a skilled Information System Security Engineer (ISSE) to support the FBI under ISSO/ISSE Program Management. The ISSE will provide technical security engineering expertise to help develop, implement, and sustain a methodology for categorizing FBI IT systems based on architecture, complexity, hosting environment, security posture, and mission requirements.
This role supports the technical analysis needed to differentiate systems by risk, technology stack, overlays, and operational dependencies, and to ensure those categorizations effectively inform labor allocation, reporting, and cost recovery. The ISSE will work closely with ISSOs, system owners, architects, and program leadership to maintain a scalable and compliant categorization framework aligned with FBI and federal standards.
Key Responsibilities
Education and Background
- Bachelor's degree in Information Security, Engineering, or related field, and 3+ years of experience, or equivalent relevant work experience; e.g., each year of work experience may be substituted for each year of education required.