We are seeking aSenior Security & QA Engineerresponsible for validating the security compliance and reliability of the MCP Server Registry ensuring proper authentication credential protection governance enforcement and end-to-end registry quality. The role includes validating authentication enforcement identifying credential exposure risks designing and executing functional tests covering CRUD operations building and maintaining automated test suites using Python and pytest enforcing lifecycle constraint testing performing audits of AWS CloudTrail logs and assessing registry and API endpoints for vulnerabilities. Collaboration with development teams is essential to ensure governance policies are enforced throughout the registry lifecycle.