Evaluate performance and capacity in a multi-client z/OS mainframe environment. Investigate and resolve performance issues using online tools as well as SMF/MXG. Build and maintain MXG Performance databases, evaluate software and operating system upgrades impact(s) on capacity, and produce and present solutions to customers.

Coordinates with multiple client management teams and accounts to formulate highly complex technical solutions to performance issues. Identifies, implements, and maintains solutions based on client needs. Additionally, provides technical leadership to internal and external personnel on highly complex mainframe performance topics.

Investigate performance issues in a diverse computing environment including OS/390, HP-UX, and NT systems. Evaluate emerging technologies and determine their potential benefits to conducting business. Examine information from forecasts and trends to determine future hardware requirements.

Oversee all aspects of the UNIX based client/server environment. In charge of hardware architecture, acquisition, installation, implementation, and problem resolution. Managed a staff of ten people and over sixty UNIX servers.

Managed eight people to perform capacity and tuning of a large LPAR based MVS JES2 mainframe environment..

Evaluate mainframe based environments to determine performance problems and model systems to predict future hardware needs. Monitor and build reports to measure the effect changes have on the environment.

Trouble shot performance problems for MVS/XA, TSO, Batch, CICS, and IDMS systems. Create BEST1 models for growth projections and institute virtual storage constraint relief.

Involved in IBM maintenance and product installation using SMPE. ICF catalog conversion, DASD performance and hardware problem resolution, OEM product installation, and other general system support duties.

Laser printer support, DASD performance analysis, DASD planning and migration, taught "Introduction to Computers" to internal associates, and other support duties.