Glenn Rehak

Experience

• 

  GTE Data Services

  Oct 1984 - May 1998

  • Lead Informix DBA that lead a team to migrate from Teradata database to Informix 7.0 (partitioned) database.• Designed Informix data model for database migration• Worked with EMC engineers to optimize data place across disks and controllers to optimize database through put• Developed and peformed face to face training with end users migrating from Teradata to HPUX/Informix platform • Installed and administered SAS software in a HPUX environment• Performed HPUX system administration on 500 gigabyte HPUX server. Show less • Provide technical support to multiple groups on multiple platforms (mainframe, UNIX, CICS, VAX) in a centralized support group• Performed stress testing for large scale applications using TPNS testing scripts• Provide GSC (general system characteristic) reports to management to allow for yearly system cost reporting• Identified and optimized high system usage processes resulting in $3M yearly savings• Part of a continual process improvement team that identified and optimized various systems the group supported Show less

  • Database administrator

    Aug 1989 - May 1998

  • Sytems Engineer

    Mar 1988 - Aug 1989

  • Systems Analyst

    Dec 1986 - May 1988

  • Programmer Analyst

    Aug 1985 - Dec 1986

  • Programmer

    Oct 1984 - Aug 1985
• 

  Verizon

  May 1998 - Jul 2015

  Senior Member Technical Staff - Database Marketing

  Major duties include:• Technical lead for the department using Teradata's (Aprimo)TCRM relational manager tool including: - Provide metadata modifications, user support, user training, and optimization - Provide implementation strategies on how to use the TCRM tool for customer contact and segmentation strategies - Analyze and enhance data mart model to meet the data requirements of the department• Develop, maintain and debug custom UNIX / Windows scripts and SQL to enhance the marketing datamart for marketing opportunities. This includes optimizing Teradata SQL statements to allow for maximum database performance.• Integration of external data sources • Participate in design sessions to ensure that IT is designing processes per the requirements of the marketing department for enhancements.• Analyze and identify data quality issues in the data warehouse to reduce marketing data errors. Also ensure daily data processes execute successfully to ensure data integrity• Peform ad-hoc data analysis for managment reports Show less

• 

  Teradata

  Aug 2015 - Aug 2019

  Professional Services Consultant
• 

  Cerulium

  Sept 2019 - now

  Senior Digital Consultant