Design and implement assigned microservice features across the 6 core services: Onboarding Invoice Eligibility Funding Repayment Risk Compliance Accounting Reconciliation Workflow Exception Management Build RESTful APIs per OpenAPI 30 contracts versioned idempotent and schema-validated Implement Kafka producers and consumers for event-driven inter-service communication Design and implement data models in PostgreSQL schema design migrations FlywayLiquibase and query optimisation Implement Redis caching for idempotency keys and session management Write unit and integration tests targeting >80 coverage JUnit 5 Mockito Testcontainers Participate in code reviews architecture discussions and sprint ceremonies Resolve SAST findings SnykCheckmarx within sprint cycle Contribute to API catalog documentation and integration stubs