Build and maintain automated test frameworks and suites for API, event-driven, and graph-based services using Python/PyTest.Define and execute test plans, cases, and test data aligned to requirements and technical specifications, ensuring FR/NFR traceability.Validate IAM models (RBAC, ABAC, ReBAC, PBAC) and test policy-as-code decision points.Perform API automation, contract testing, and event replay/reprocessing scenarios.Validate graph data structures (nodes, relationships, traversal logic); Neo4j experience preferred.Produce regulatory evidence and support test governance, including entry/exit criteria.Develop and manage Jenkins pipelines for test execution and reporting within CI/CD.Log, track, and drive defect resolution using JIRA/Zephyr, ensuring clear stakeholder communication.Collaborate with Cloud Security, DevOps, and Engineering teams to improve testability and overall quality.GCS is acting as an Employment Business in relation to this vacancy.