Application Programming Interface (API), Banking Services, Continuous Deployment/Delivery, Continuous Integration, DevOps, High Availability, Integration Testing, JSON, Java, Java Platform Enterprise Edition (Java EE/J2EE), Linux Operating System, Oracle, Oracle PL-SQL, Payment Processing, Performance Management, Quality Assurance, REST (Representational State Transfer), Realtime Transport Protocol, Reconciliation, SOAP (Simple Object Access Protocol), Software Administration, Software Development, Testing, Transaction Processing/Management, Unit Test, Unix Operating Systems, XML (EXtensible Markup Language)