Description
Transform technology into opportunity as a Lead Information Systems Security Engineer (ISSE) with GDIT. A career in enterprise IT means connecting and enhancing the systems that matter most. At GDIT you’ll be at the forefront of innovation and play a meaningful part in improving how agencies operate.
Lead & Ownership
- Serve as the lead engineer for security accreditation, guiding ISSMs, SCAs, PMs, and engineering teams through the entire RMF/ICD 503 lifecycle.
- Drive systems to achieve ATD → IATT → ATO, ensuring technical and documentation readiness at each gate.
- Act as the primary point of contact for customer security organizations, audit teams, and senior leadership.
- Mentor junior engineers and provide technical oversight across multiple projects.
Technical Security Engineering
- Conduct in-depth technical reviews of system architectures and document security-relevant components for SSPs and CONOPS.
- Lead the development, review, and execution of all RMF/ICD 503 documentation, including SSP, CONOPS, Contingency Plans, User Guides, and SOPs.
- Review and update control volatility assessments based on evolving threats, IC policies, federal standards, and system sensitivity levels.
- Support Information Systems Continuous Monitoring (ISCM) activities, performing technical content reviews and recommending improvements.
A&A Execution and Compliance
- Track, document, and communicate A&A progress across multiple systems to customer leadership.
- Own POA&M development, mitigation strategies, and evidence collection from system owners and engineers.
- Provide audit liaison support for internal and external audits, delivering concise, actionable recommendations.
- Ensure ongoing compliance and readiness through proactive security oversight and risk assessments.
Requirements
- 10+ years of cybersecurity, information assurance, or security engineering experience.
- Active TS/SCI with Polygraph clearance.
- DoD Manual 8570.01-M at the Information Assurance System Architects & Engineer (IASAE Level II) role.
- Experience mentoring or leading security teams.
- Direct experience leading A&A/ATO efforts for large or complex systems.
- Mastery of RMF, ICD 503, and IC accreditation processes.
- Strong technical writing expertise, especially in SSPs, CONOPS, POA&Ms, and audit documentation.
Preferred Qualifications
- Experience supporting DoW or Intelligence Community customers.
- Background in secure systems architecture or engineering.
- Familiarity with high-value assets, cross-domain systems, or TS/SCI mission systems.
- Experience leading A&A for Special Access Programs
Benefits
- 401K with company match
- Comprehensive health and wellness packages
- Internal mobility team dedicated to helping you build your skills and own your career
- Professional growth opportunities including paid education and certifications
- Cutting-edge technology you can learn from
- Rest and recharge with paid vacation and 10 company-paid holidays