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Sr. Staff Information Systems Security Engineer (ISSE)
CACI
Chantilly, VA, USPosted Sep 29, 2026 · Yesterday$121k – $266k
Full-time$121k – $266kStaffDefense
About this role
As a Senior Staff Information Systems Security Engineer, you will be the primary technical authority ensuring the security and resilience of mission-critical systems. You will integrate security engineering principles throughout the development lifecycle, manage the Risk Management Framework (RMF) and Authority to Operate (ATO), and provide security oversight for cloud environments. This role requires deep expertise in cybersecurity compliance and a collaborative approach with development teams and government stakeholders.
What we are looking for
6- Lead end-to-end RMF process and ATO maintenance
- Drive "security by design" for cloud (AWS/Azure) and on-premise systems
- Conduct vulnerability assessments and manage mitigation efforts
- Establish continuous monitoring and enforce cybersecurity policies
- Collaborate with developers, systems engineers, and government stakeholders
- Active TS/SCI with Polygraph clearance required
Skills mentioned
2AWSAzure
Work authorization
Requires a Ts Sci security clearance.
