Gregory D.
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Gregory D. Email & Phone Number

Senior Applications Administrator at Centene Corporation
Location: Oklahoma City, Oklahoma, United States 4 work roles 1 school
1 work email found @chk.com 6 phones found area 405 LinkedIn matched
✓ Verified August 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 6 phones

Work email g****@chk.com
Direct phone (405) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Centene Corporation
Role
Senior Applications Administrator
Location
Oklahoma City, Oklahoma, United States

Who is Gregory D.? Overview

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Quick answer

Gregory D. is listed as Senior Applications Administrator at Centene Corporation, based in Oklahoma City, Oklahoma, United States. AeroLeads shows a work email signal at chk.com, phone signal with area code 405, and a matched LinkedIn profile for Gregory D..

Gregory D. previously worked as Application Systems Administrator Specialist at Chesapeake Energy and Sr. Database Administrator at Seagate Technology. Gregory D. holds Bachelor'S Degree, Business Management & Ethics, General from Mid-America Christian University.

Company email context

Email format at Centene Corporation

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*@chk.com
68% confidence

AeroLeads found 1 current-domain work email signal for Gregory D.. Compare company email patterns before reaching out.

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Profile bio

About Gregory D.

10 Years Experience Administrating Informatica Applications including PowerCenter, DataQuality and MDM.Performed upgrades Informatica PowerCenter including versions; 8.x/9.x/10.xPerformed upgrades Informatica MDM application including versions, 9.7/10.x 2 plus years Hadoop Administrator running CDH distribution; on-prem and cloud based6 Years Experience Oracle Database AdministratorResponsible for maintenance, support, troubleshooting and upgrade duties for dev, test, qa and production environments.Experience with global data centers and off-shore development teams.Participate in on-call rotation: 24x7.Experience with the following technologies:Shell ScriptingWeblogic AdministratorUnix: Sun Solaris, AIX, Red Hat Linux, Oracle LinuxWindows Server 2003, 2008, 2008 R2, 2012, 2016Spotfire Server 7.x/ X (Cloud)OBIEE BI SuiteOracle Applications 10.7/11iMicrosoft Team Foundation Server Microsoft SQL Reporting & Analysis ServerControl-M / UC4 Scheduling Software

Listed skills include Oracle, Databases, Microsoft Sql Server, Troubleshooting, and 18 others.

Current workplace

Gregory D.'s current company

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Centene Corporation
Centene Corporation
Senior Applications Administrator
Oklahoma City, OK, US
Website
centene.com
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4 roles · 27 years

Gregory D. work experience

A career timeline built from the work history available for this profile.

Role listed

Centene Corporation

Application Systems Administrator Specialist

Chesapeake Energy

Oklahoma City, Ok, Us

• Involved in installing, upgrading and troubleshooting Hadoop system running CDH distribution on Linux O/S. Hadoop system secured using Kerberos and Sentry; both on-premise and cloud based.• Involved in migrating initial implementation of Informatica PowerCenter 9.6 to 10.1 for PowerCenter and Data Quality Platforms.• Upgraded and Migrated Informatica MDM from 9.7 to 10.2. Additionally, moved the application and database servers from on-premise to cloud (IAAS) platform.• Installed configured, maintained, patched, upgrade and administered Informatica Servers from version 8.1-10.x in dev, test, qa and production environments. Informatica Services installed Power Center Repository Service, PowerCenter Integration Services, Metadata Manager, Reporting Service, Model Repository for Data Quality, Data Integration for Data Virtualization, Analyst Service.• Upgraded Informatica to the following versions 8.1 - 10.1• Configure mid-tier applications to integrate with LDAP and MS Active Directory.• Collaborate with all levels of organization to plan, communicate, test and execute Informatica upgrades.• Automated ETL promotion requests across different Informatica domains; via self-service platform for development staff.• Write shell scripts to automate movement of Informatica tasks.• Provide support to development, test and production control teams, help troubleshoot issues with Informatica workflows, connection failures.• Secure application access to enterprise standards, provision user accounts and access levels.• Assisted in capacity planning, repository sizing and maintenance, including require o/s software patching, hardware lifecycle maintenance.• Involved in vendor contact and management of software procurement.• Provided project management for implementation and upgrade projects.• Use ITIL practices and methodology.

Sr. Database Administrator

Seagate Technology

Fremont, Ca, Us

• Maintain Informatica Software for HR/Sales Compensation systems • Maintain production Oracle database and production applications.• Maintain all production databases at 99.5% availability.• Weekly Interface with Off-Shore Development teams• Participate in on-call rotation for 24/7 support.• Architect and implement high-availability systems

2000 - 2006 ~6 yrs
Team & coworkers

Colleagues at Centene Corporation

Other employees you can reach at centene.com. View company contacts →

AB Alize Brown Alize Brown Colleague at Centene CorporationCitrus Heights, California, United States View → RD Roselle Dela Cruz Roselle Dela Cruz Colleague at Centene CorporationLong Beach, California, United States View → DD David Demsky David Demsky Colleague at Centene CorporationSt Louis, Missouri, United States View → FS Fiorella S. Fiorella S. Colleague at Centene CorporationTampa, Florida, United States View → CM Cynthia Menke Cynthia Menke Colleague at Centene CorporationGreater St. Louis, United States View → JF Judith F. Auguste, Shrm-Scp, Pmp Judith F. Auguste, Shrm-Scp, Pmp Colleague at Centene CorporationMiami-Fort Lauderdale Area, United States View → JR Jennifer Reinhardt Jennifer Reinhardt Colleague at Centene CorporationSt Louis, Missouri, United States View → SP Samantha Paradise Samantha Paradise Colleague at Centene CorporationLos Angeles, California, United States View → KR Kirsten Reed Kirsten Reed Colleague at Centene CorporationChicago, Illinois, United States View → JG Janeen Grismer Janeen Grismer Colleague at Centene CorporationMarlton, New Jersey, United States View →
1 education record

Gregory D. education

  • Mid-America Christian University
    Mid-America Christian University
    General
FAQ

Frequently asked questions about Gregory D.

Quick answers generated from the profile data available on this page.

What company does Gregory D. work for?

Gregory D. works for Centene Corporation.

What is Gregory D.'s role at Centene Corporation?

Gregory D. is listed as Senior Applications Administrator at Centene Corporation.

What is Gregory D.'s email address?

AeroLeads has found 1 work email signal at @chk.com for Gregory D. at Centene Corporation.

What is Gregory D.'s phone number?

AeroLeads has found 6 phone signal(s) with area code 405 for Gregory D. at Centene Corporation.

Where is Gregory D. based?

Gregory D. is based in Oklahoma City, Oklahoma, United States while working with Centene Corporation.

What companies has Gregory D. worked for?

Gregory D. has worked for Centene Corporation, Chesapeake Energy, and Seagate Technology.

Who are Gregory D.'s colleagues at Centene Corporation?

Gregory D.'s colleagues at Centene Corporation include Alize Brown, Roselle Dela Cruz, David Demsky, Fiorella S., and Cynthia Menke.

How can I contact Gregory D.?

You can use AeroLeads to view verified contact signals for Gregory D. at Centene Corporation, including work email, phone, and LinkedIn data when available.

What schools did Gregory D. attend?

Gregory D. holds Bachelor'S Degree, Business Management & Ethics, General from Mid-America Christian University.

What skills is Gregory D. known for?

Gregory D. is listed with skills including Oracle, Databases, Microsoft Sql Server, Troubleshooting, Sql, Windows Server, Informatica, and System Administration.

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