Agile Programming Methodologies, Business Analysis, Cobol Programming Language, Code Reviews, Continuous Deployment/Delivery, Continuous Integration, Customer/Client Research, Debugging Skills, Disaster Recovery, IBM CICS (Customer Information Control System), IBM DB2, IBM z-OS Operating System, IP Multimedia System (IMS), Identify Issues, JCL (Job Control Language), Mainframe Computer, Maintain Compliance, On Call, PL/1 (Programming Language 1), Performance Tuning/Optimization, Problem Solving Skills, Production Support, Production Systems, Project Lifecycle, Project/Program Management, Risk Analysis, SQL (Structured Query Language), Support Documentation, Systems Maintenance, Systems Scalability, Systems/Internals Programming, Technical Support, Technical Writing, Technical/Engineering Design, Test Driven Development (TDD), Test Plan/Schedule, Transaction Processing/Management