Information System Security Officer, (ISSO) - Level 3

Position Summary
The Information System Security Officer (ISSO) – Level 3 provides senior-level cybersecurity engineering and compliance support to the Defense Information Systems Agency (DISA) Internet Enterprise (IE) under the CTAS Task Order. This role is responsible for ensuring mission systems achieve and sustain Authorization to Operate (ATO) through implementation of the Risk Management Framework (RMF) and transition from legacy DIACAP requirements. The ISSO – Level 3 acts as both a technical and compliance leader, bridging vulnerability management, STIG/SRG application, and documentation development to create complete and accurate accreditation packages. This position serves as a senior-level resource, providing mentorship to mid-level and junior ISSOs, while interfacing with Government stakeholders, Information System Security Managers (ISSMs), and Authorizing Officials (AOs).

Responsibilities
The IS...