Technical & Domain Knowledge Knowledge Area Expected Capability Java Development Java 11+, Spring Boot, Spring Cloud APIs REST, OpenAPI, API Gateway Microservices Distributed Systems, Service Communication Security OAuth2, SSO, JWT, RBAC Messaging Kafka, Event-Driven Architectures Databases SQL, NoSQL, MongoDB Integration APIs, Messaging, Service Orchestration Observability Monitoring, Logging, Tracing, Alerting Cloud Platforms GCP DevOps CI/CD, Containers Transaction Processing ATM, Payments, Reconciliation, Correlation Preferred Qualifications Banking and Financial Services domain experience. We are seeking an experienced Backend Engineer / Core Lead to design, develop, and lead the implementation of core backend services supporting transaction tracing, investigation workflows, event processing, orchestration, and observability for Banking and Financial Services (BFSI) platforms.