Worked as Unix, Windows and Linux system administrator and application support for many mission critical systems. Performed system monitoring, upgrade, middleware application installation, configuration, and monitoring. • Proactively monitored, controlled, diagnosed, supported, and resolved all issues related to implementation of software and hardware, maintenance activities, ordering and billing application. Worked on data automation issue in production processing and related problem alarming. • Coordinated planning and implementation of all production changes with multiple groups that included Systems Administrators, Operational Administrators, Database Administrators, and vendor assigned Development Support Personnel, business partners, and product development team. Coordinated changes with more than 80 interfacing, ordering and billing customer applications required close integration to resolve operational and functional data problems. • Performed system and application tasks on a 24x7 schedule for production systems. Tracked and managed all issues using an Enterprise quality-gate and ticketing system. • On quarterly schedule, functioned as the lead UNIX production support application administrator to implement full releases of all application code. Performed functionality tests on production and disaster recovery sites, of all required application code ship. Researched, defined, and implemented all required software configuration changes to real-time and batch processing network interfaces. • Created, tested, and implemented UNIX scripts to satisfy system and application processing, measurement, and maintenance automation. • Authored and maintained a technical documentation for tools and procedure. • Provided training on new technology, implementation, and monitoring to team members.