Overview
Work History
Timeline
Generic

DAVID L THOMAS

Atlanta,Georgia

Overview

46
46
years of professional experience

Work History

Senior Cyber Security Engineer

Matlen Silver Consulting - Truist Financial
Atlanta, Georgia
10.2023 - Current
  • Senior RACF Security Engineer supporting a special RACF Security project for segregating specific Application access versus 'universal' Resource access, using the IBM zSecure RACF Admin and Audit product, REXX / CLIST, JCL

Senior Cyber Security Engineer II

Travelport, LP
Atlanta, Georgia
09.2015 - 09.2023
  • Senior RACF Security Administrator and Team Lead for overseeing Security Administration and Auditing for the 4 Travelport Mainframe z/OS and 3 z/VM systems
  • Responsibilities include evaluating and implementing security for system and resource access, using the IBM zSecure RACF Admin and Audit product, RRSF, and RACF Certificate administration
  • Responsible for providing Audit documentation for the yearly SOC 1 and SOX Deloitte Audits, as well as day-to-day Auditing of the Travelport systems, using the zSecure product
  • Providing support to the z/OS and z/VM Systems Software group for new software implementations and on-going system-level security functions
  • Responsible for interfacing with Application groups for the security implementation of new and existing applications, to ensure their compliance with Travelport Security practices
  • Responsible for mentoring and on-going training of new Security Administrators

z/OS Systems Software Support - Storage Administration

Travelport, LP
Atlanta, Georgia
04.2000 - 09.2015
  • Responsible for the maintenance and support of the z/OS DASD Storage environment, including DFSMS/DFDSS/DFHSM, IBM DS8000 DASD Storage Controllers, RACF Storage Resource Security, and Disaster Recovery
  • Designed, implemented and maintained the IBM FlashCopy and PPRC product environments for z/OS and z/VM for daily backup to the Disaster Recovery sites
  • Project Lead for the implementation of the IBM HYPERSWAP product for the Travelport Production z/OS environment, including the software installation, testing and deployment
  • Day-to-day Administration of the Storage environment, including monitoring and reporting on the usage of the DASD Subsystems for Travelport Management

Timeline

Senior Cyber Security Engineer

Matlen Silver Consulting - Truist Financial
10.2023 - Current

Senior Cyber Security Engineer II

Travelport, LP
09.2015 - 09.2023

z/OS Systems Software Support - Storage Administration

Travelport, LP
04.2000 - 09.2015

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