This Sources Sought Notice is for acquisition planning and seeks industry information from capable and interested 8(a) sources for commercial Engineer and Project Management Services supporting Authentication Services FISMA requirements. The contractor would provide Subject Matter Expert support for Information System Security Officer duties and audit liaison for the Authentication Services General Support System. Work includes FISMA lifecycle and continuous monitoring tasks in a GRC tool, documentation maintenance, vulnerability scanning issue closure, and audit support for Federal Debt, Consolidated Financial Statement, OIG, and GAO audits. Additional support covers ICAM operations and help desk, PKI/LDAP/SSO/Splunk/Vault/CAIA service maintenance, business continuity and disaster recovery, user provisioning and reconciliation, cloud migration security controls, NIST-related training, and contract status meetings/reports.