Perform a variety of Information Assurance (IA) and Computer Network Defense (CND) functions which are broad in nature and support multi-tier IA and CND functions to include, but not limited to, systems engineer, audit/inspection, infrastructure support, certification and accreditation, vulnerability management, detection and response support services. Provide support for a program, organization, system, or enclave’s information assurance program. Provide security certification test and evaluation of assets, vulnerability management and response, security assessments, and customer support. Provide support for proposing, coordinating, implementing, and enforcing information systems security policies, standards, and methodologies. Maintain operational security posture for an information system or program to ensure information systems security policies, standards, and procedures are established and followed.