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...