Senior Unix Engineer
Current
Cti Networks, Inc.
Jan 2020 - Present
AeroLeads people directory · profile
John Core Email & Phone Number
Senior Unix Engineer at CTI Networks, Inc.
at
CTI Networks, Inc.
1 work email found
@celerity.com
LinkedIn matched
✓ Verified Jun 2026
4 data sources
Profile completeness 100%
Current company
CTI Networks, Inc.
Role
Senior Unix Engineer at CTI Networks, Inc.
Location
Harrisburg, Pennsylvania, United States
Who is John Core? Overview
A concise factual answer block for searchers comparing this professional profile.
Quick answer
John Core is listed as Senior Unix Engineer at CTI Networks, Inc. at CTI Networks, Inc., based in Harrisburg, Pennsylvania, United States. AeroLeads shows a work email signal at celerity.com and a matched LinkedIn profile for John Core.
John Core previously worked as Senior Unix Engineer at Cti Networks, Inc. and Senior Unix Administrator / Team Leader at Planet. John Core holds Chemistry from Kutztown State College.
Company email context
Email format at CTI Networks, Inc.
This section adds company-level context without repeating John Core's masked contact details.
{first_initial}{last}@celerity.com
86% confidence
AeroLeads found 1 current-domain work email signal for John Core. Compare company email patterns before reaching out.
Profile bio
About John Core
Sun Solaris & Red Hat Tier II & III tech support trainer for Sun Microsystems.SAN/Storage/Tape trainer for Sun Micro/Storagetek. Brocade, Veritas, ZFS, TSM, EBS (Legato), CAMExtensive Checkpoint firewall setup and maintenance. CCSAExtensive Cisco and 3Com router experience including VPN setup. CCNA20+ years experience with various Unix/Linux operating systems.15+ years experience with Solaris Administration.15+ years experience with Windows Administration.10+ years experience with Red Hat Linux Administration.10+ years experience with MAC OS X. 4+ years experience with AIX20+ years experience programming in C, Basic, PHP, Perl, and Unix shell.15+ years team leadership and team management experience.4+ years Department of Defense Top Secret security compliance. Security+, SABER, CCSA
Listed skills include Solaris, Servers, Disaster Recovery, Vmware, and 46 others.
Current workplace
John Core's current company
Company context helps verify the profile and gives searchers a useful next step.
Cti Networks, Inc.
16 roles · 48 years
John Core work experience
A career timeline built from the work history available for this profile.
Senior Unix Administrator / Team Leader
Solaris 10, 11.3, 11.4RHEL 5,6, & 7, Satellite serverQFS, ZFSEMC Unity, HP 3ParDockerKubernetesC, PHPvSphere
May 2016 - Jan 2020
Splunk Administrator
Administrate Splunk clusterShell ScriptingC programmingRegexSUSEAIXVMware
Sep 2015 - Dec 2015
Infrastructure Services Consultant
Oracle Virtual MachineOracle Enterprise LinuxRed Hat Enterprise 6Oracle 12c on OELIBM System Storage, DS8000, XIVSaaS to HMO's with over 75 million user recordsAIXSolaris 9,10
Oct 2014 - Jun 2015
Systems Architect
Install, patch, administer and secure customer equipment.Provide support for Oracle VM Manager ClusterBuild/Modify custom OEL servers for Oracle and Apache applicationsCreate scripts in Shell, Perl, & ‘C’ to automate monitoring and updating using the SALT environmentDeployment of Linux images using HW, VMware, and OVM.Provide support for OEL and AIX OS.
2013 - Apr 2014
Senior Systems Engineer
Install, patch, administer and secure customer equipment.Provide support for Oracle VM Manager ClusterDeployment of Linux images using VMware, OVM, and OpenStack.Provide support for Solaris, Red Hat, Ubuntu, Suse, and AIX OS installs.Collaborate with Oracle DBA team for installation and troubleshooting.SAN support and configuration, Brocade, IBM V3700.
May 2012 - Oct 2012
Senior Unix Administrator, , Implementation Team
Install, Patch, Administer and secure customer equipment.Assist Disa customers preparing OS installs for DoD security compliance.Provide support for applying latest security updates.Provide support for Solaris, Red Hat, HP-UX, AIX OS installs.Provide support for customer applications, Oracle, SQL, Apache, WebSphere, and WebLogicCollaborate with Oracle DBA.
Jul 2009 - Nov 2011
Senior Unix Administrator, Security Analyst
Dla
Provide support and security updates for 220+ Solaris serversVerify DoD STIG compliance for all new installs and existing serversProvide support /configuration for 40+ Checkpoint firewallExtensive scripting in ‘C’ and Unix shell for Provider One serversProgrammed in ‘C’ and Unix shell to produce automated “one button” install disks for Xerox.
Jul 2008 - Jul 2009
Senior Solaris/Linux Systems Administrator
Provide design, administration, and modifications to the Fancast.com site.Provide support for Storagetek storage arrays, SAN, and Fiber switches.Provide support for Solaris and Red Hat OS installs.Provide Solaris builds for Apache/Squid servers.Specialized support for Solaris zones, and F5 load balancingSpecialized support for Squid running under Red Hat
Jul 2008 - Jul 2009
Lead Trainer, Trainer, Technical Support Engineer, Product Specialist
Train Tier II & III engineers in Solaris & Red Hat OS, Networking, security, storage arrays, and SAN concepts and connectivityTroubleshoot and provide solutions to problems for Sun’s customers.Assist engineers in case management and solution.Specialized support for storage arrays, OS (Solaris/Red Hat), and Networking.Training team supervisor.Key.
Aug 2006 - Jun 2008
Custodian Of Records / Administrative Support
Forensic file recovery.Recover and / or document records for federal investigationProvide court testimony as to source and collection of recordsAssist FBI with recovery of files and imaging of disk drivesScan disk drives for evidence of file wiping (violation of court order)Administrator of Windows 2003 Exchange Server, Active Directory Server, and.
May 2005 - Aug 2006
Information Technology Architect
Lead IT personnel in operating 32-plus systems at medical centers in 28 counties.Develop policies, goals, programs and evaluation systems applicable company wide.Provide technical consulting to CEO, customers and board of directorsSupervised development of application software for various federally funded programs.Key Achievements- Designed data center and.
Feb 1995 - Sep 2004
Senior Systems Analyst
Tressler Lutheran
1990 - 1995
~5 yrs
Lan/Wan Pre-Sales
R.V. Quinn Business Systems
Sep 1988 - Oct 1989
Programmer, Project Manager
Tnc Inc
Dec 1984 - Aug 1988
Pharmacy Technician
1978 - 1984
~6 yrs
2 education records
John Core education
Chemistry
Kutztown State College
Education record
Central Dauphin Vo-Tech
FAQ
Frequently asked questions about John Core
Quick answers generated from the profile data available on this page.
What company does John Core work for?
John Core works for CTI Networks, Inc..
What is John Core's role at CTI Networks, Inc.?
John Core is listed as Senior Unix Engineer at CTI Networks, Inc. at CTI Networks, Inc..
What is John Core's email address?
AeroLeads has found 1 work email signal at @celerity.com for John Core at CTI Networks, Inc..
Where is John Core based?
John Core is based in Harrisburg, Pennsylvania, United States while working with CTI Networks, Inc..
What companies has John Core worked for?
John Core has worked for Cti Networks, Inc., Planet, Celerity, Medecision, and Awi.
How can I contact John Core?
You can use AeroLeads to view verified contact signals for John Core at CTI Networks, Inc., including work email, phone, and LinkedIn data when available.
What schools did John Core attend?
John Core holds Chemistry from Kutztown State College.
What skills is John Core known for?
John Core is listed with skills including Solaris, Servers, Disaster Recovery, Vmware, Unix, Operating Systems, Linux, and Windows Server.
Find 750M verified contacts
Search by job title, company, industry, location, and seniority. Export verified B2B contact data when you need it.
Start free trial