Summary

Experience

Senior Mainframe Developer|Fidelity Investments

Dallas, TXJun 2021Present

• Led the development and enhancement of 5+ critical COBOL batch applications, improving data processing efficiency by 15% for financial reconciliation systems.
• Optimized CICS transaction processing for a core banking system, reducing average response times by 20% and handling over 10,000 transactions per hour.

Mainframe Developer|American Airlines

Fort Worth, TXJul 2017May 2021

• Developed and maintained COBOL programs for airline reservation and ticketing systems, resolving over 100 production issues and enhancing system stability.
• Wrote and modified JCL scripts for various batch processing tasks, successfully processing millions of passenger records daily for flight manifest generation.

Projects

JCL Script Optimizer

Jan 2023Mar 2023

• Developed a personal REXX utility to analyze and suggest optimizations for complex JCL job streams, reducing typical execution times by 5-10%.

COBOL Code Refactor Utility

Jul 2022Nov 2022

• Built a proof-of-concept tool in COBOL to identify and refactor common code redundancies and outdated syntax within legacy programs.
• Successfully processed and suggested improvements for over 500 lines of sample COBOL code, demonstrating potential for 15% code reduction.
• Aimed at improving maintainability and readability of large COBOL applications, reducing future debugging efforts.

DB2 Performance Monitor Script

Jan 2024Present

• Developing a set of SQL and JCL scripts to monitor DB2 database performance metrics, including query execution times and locking issues.
• Designed to proactively identify potential bottlenecks and provide alerts for performance degradation in critical production environments.
• Incorporating data visualization capabilities using external tools for easier trend analysis.

Education

University of North Texas|Bachelor of Science in Computer Science

Denton, TXAug 2013May 2017

• Graduated Cum Laude with a GPA of 3.8/4.0
• Completed capstone project focused on secure data processing for legacy systems
• Recipient of the Computer Science Departmental Scholarship for academic excellence

Skills

Mainframe Languages

COBOLJCLREXXAssembler (basic)PL/I

Databases

DB2VSAMIMS/DB (conceptual)

Operating Systems

z/OSMVS

Tools & Utilities

TSO/ISPFSDSFEndevorFile-AIDAbend-AIDCA7/CA-11SyncSort

Methodologies

SDLCAgileWaterfallITIL