As a mainframe programmer, ensure quick turnaround in identifying application issues and provide timely solutions. Develop detailed plans and accurate estimates for completion of build, system testing and implementation phases of project. Transform business function requirements into technical program specs to code, test and debug programs. Develop, code, document and execute unit tests, systems, integration and acceptance tests and testing tools for functions of high complexity. Perform performance tuning to improve performance over multiple functions Engage other technical team members in the design, delivery, and deployment of solutions. Ensure integration system activities including monitoring the technical architecture (particularly scalability, availability and archiving) meet all SLA's, CSF/CTQ. Manage operational support, performing work during change windows.