Design and implement complex integrations between subsystems and other platforms/services like REST/SOAPservices; handle technology spikes and framework configurations for Performance Optimization and Tuning;address performance bottlenecks and fixed application scalability issues, heap memory analysis, database.Design, develop and implement Web Services for the third party interaction needs of the application forconsuming the information; convert File based applications to Java Batch applications using Spring Batch and;develop shell scripts to trigger them from cron/job scheduler.