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John Clark Email & Phone Number

Senior Windows System Administrator at Peraton
Location: Durham, North Carolina, United States 10 work roles 2 schools
1 work email found @cs.com 3 phones found area 919 and 726 LinkedIn matched
✓ Verified July 2026 4 data sources Profile completeness 100%

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Work email j****@cs.com
Direct phone (919) ***-****
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Current company
Role
Senior Windows System Administrator
Location
Durham, North Carolina, United States
Company size

Who is John Clark? Overview

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Quick answer

John Clark is listed as Senior Windows System Administrator at Peraton, a with 1829 employees, based in Durham, North Carolina, United States. AeroLeads shows a work email signal at cs.com, phone signal with area code 919, 726, and a matched LinkedIn profile for John Clark.

John Clark previously worked as Senior Lab Support Engineer at Dell Technologies and Senior Storage Engineer at Carpenter Consulting (Chicago, Il). John Clark holds Bachelor Of Arts (Ba), Anthropology from University Of Kansas.

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Email format at Peraton

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*@cs.com
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Profile bio

About John Clark

Professional Summary:Accomplished and certified Network Professional with expertise in Enterprise Windows and VMWare Systems Administration, implementations, migrations (Storage, Active Directory and GPO), virtualization and hardware upgrades. Organized and dependable with the ability to shift priorities as necessary to meet project objectives and achieve successful outcomes. Highlights/Accomplishments:Airman in the Air National Guard and member of IRROver 30 years of IT experience including.• Active Directory (AD)• TCP/IP/ARP/DHCP/DNS/WINS networking protocols• Cisco routers/switches/servers• Certifications CCNA, MCSE, Master CNE, Linux+, Network+, A+, IT Project+• Numerous Enterprise projects successfully implemented encompassing over 2000 networks and 30,000 Linux/Windows serverso A dozen plus enterprise virtualization projects successfully implementedo Executed VSphere/VMware upgrade project with IBM for Fluor Engineeringo Rebuilt/upgraded SCM infrastructure, virtualized 30 physical servers and migrated Active Directory.o Stepped inand completed additional 50% of Hitachi Storage Migration Project while achieving 100% of my designated VMWare Patching project.Technical Skills:Operating Systems: Linux, Microsoft Windows Server 2000-2019, VMware vSphere 3/4/5/6/7; VMware 7/8, AWS (Amazon Web Services)Hardware: (Rack/Blade) Compaq/HP, Dell, IBM, Cisco UCS, RAID.Software: VMware 3/4/5/6/7, Logical Volume Manager (LVM), HP Array Configuration Utility (ACU), NetApp SnapMirror, Hitachi TrueCopy/ShadowImage, Compaq/HP SmartStartNetworking: Cisco (switches/routers), TCP/IP, NFS, ISCSI, FCOE, FC, DNS, DHCP, IPV4/6.Data Center: DELL EMC Symmetrix, VXRail, VXBlock, VXFlex, Isilon (OneFS), Hitachi AMS 1000, NetApp, Rack and stack, firmware updates, SAN, NAS, HA cluster.

Listed skills include Servers, Vmware Esx, San, Windows Server, and 46 others.

Current workplace

John Clark's current company

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Peraton
Peraton
Senior Windows System Administrator
herndon, virginia, united states
Website
Employees
1829
AeroLeads page
10 roles

John Clark work experience

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

Senior Windows System Administrator

Current

United States

PeratonWindows/VMware Systems Administrator, 100% RemoteJune 2020 to July 2024As an integral part of a project team:• create/migrate shared storage from legacy storage to new Hitachi shared storage.• Upgrade/migrations/patching on Windows Server systems (2008/2012/2019) for 250 Windows Servers. • Patch VMWare 6/7 including Vcenter/vSphere and VMs (Virtual Machines). • Research manufacturers’ Hardware Matrix to recommend Hardware changes to upper management for Operating Systems (OS) upgrades and migrations.• Coordinate with on-site personnel for 3 Data Centers. • Develop and maintain expertise in industry trends for cloud computing focusing on VMware 7/8, AWS (Amazon Web Services) virtual solutions, resource management, and service level management through specialized or new product training. • Upgrade firmware.Performed on-call duties, ensuring that the server availability SLA was met

Jun 2020 - Present

Senior Lab Support Engineer

United States

Dell EMC Durham Center of Excellence Data CenterSenior Lab Support Engineer RTP, North CarolinaDecember 2018 to December 2019• Built and maintained Data Center lab server infrastructure using Cisco UCS Manager• Implemented and maintained Data Center switch infrastructure to support the server environment including Cisco Nexus converged switches, Cisco MDS, and Brocade fabric and Dell switches.• Configured and maintained Data Center storage arrays in a production environment, including capacity sizing/planning, performance analysis and fault tolerance considerations.• Configured Business Continuity/Disaster Recovery/Backup and Restoration technologies.• Collaborated with Developer Teams to configure, troubleshoot and upgrade/update Dell EMC Product Solutions for the Data Center• Joined Developer Teams in meetings and individually to determine the Customer’s needs.• Analyzed and solved complex problems regarding advanced VMware technologies implemented in an Engineering test environment.• Worked/Collaborated with team members, internal/external stakeholder organizations, engineering and product management to design and develop appropriate support solutions to maintain a reliable testing environment for the Data Center• Supported developers in the Dell EMC Data Center Labs in creating/improving storage products such as VXRail, VXBlock and VXFlex• Installed, Moved, Remediated and Decommissioned servers, switches, and storage systems (Compute/Network/Storage) in racks in the Data Center

Dec 2018 - Dec 2019

Senior Storage Engineer

Carpenter Consulting (Chicago, Il)

United States

Carpenter ConsultingStorage Engineer RTP, North Carolina​July 2016 to December 2018• Migrated Active Directory (AD) from Windows Server 2003/2008 to Server 2016.• Upgraded Microsoft Exchange 2010 to Exchange 2013• Managed and implemented project for virtualization of physical servers.• THIS is an Accomplishment. Call it out separately. Architected/deployed virtualization solution using Vsphere 6.0 and Cisco UCS Manager• Performed physical to virtual (P2V) migration to vSphere 6.5.• Used EMC Unisphere to configure and provision EMC VNX (UNITY)• Upgraded firmware for Cisco UCS vSphere 6 hosts. Upgraded VMWare to 6.5

Jul 2016 - Dec 2018

Vmware Engineer

United States

SCM Metal ProductsVMware Engineer RTP, North Carolina​November 2015 to July 2016• Fully patched 100% of the servers (Because all servers had never been patched)• Discovered, tracked down, and killed rogue DHCP server.• Redesigned network to a structured design• Implemented 2 networks in parallel using Cisco routers/switches, Enterprise Wi-Fi, and Fiber/Category 6 cable to reduce the impact of user downtime during the upgrade.• THIS is an Accomplishment. Call it out Separately. Architected and deployed structured cabling with Cisco switches and routers.• Revamped all 20-year-old cabling Fiber/Category 6 cable.• THIS is an Accomplishment. Call it out separately. When scanning server went down, I investigated/implemented a plan to enable network scanning without additional hardware purchase, saving the company $25,000.• Recommended/purchased/implemented Webex for support of remote users.• THIS is an Accomplishment. Call it out separately. Instituted a policy with GEEP to recycle electronic hardware.• Remediated Microsoft Active Directory (AD) replication problem to resolution• Performed Data Center Physical Host rack and stack, break/fix.• Migrated DHCP/DNS/AD from server 2003/2008 to server 2012.• Upgraded Microsoft Exchange 2010 to Exchange 2013• Managed and implemented project for virtualization of servers to VMWare 6.• THIS is an Accomplishment. Call it out separately. Architected/deployed a virtualization solution using Vsphere 6.0 and HP DL360• THIS is an Accomplishment. Call it out separately. Managed and implemented IT project to replace 100% of thin client terminals.• Used EMC Unisphere to configure and provision EMC VNXe 3200• Upgraded firmware for HP DL360 Gen9 vSphere 6 hosts.• Migrated File/Print services (P2V) Windows 2008 to a virtual 2012R2 server.

Dec 2015 - Jul 2016

Vmware Consultant

Ibm

United States

IBMVMware Engineer RTP, North Carolina​July 2014 to November 2015• Performed VMware administration and implementation of best practices.o Upgraded over 160 VMware vSphere 4.1 2000 VMs to vSphere 5.5.o Used remote iDRAC, RSA, ILO for worldwide locations.o Performed Data Center Physical Host rack and stack, break/fix.o Installed and Upgraded IBM, Dell, HP, and Cisco UCS vSphere hosts in enterprise.

Jul 2014 - Nov 2015

Vmware Engineer

United States

First Citizens BankVMware Engineer, North Carolina​January 2014 to July 2014• Administered/remediated VMware and implemented best practices.o Virtualized 1000 Servers using P2V and V2V on VMware 5.5o Installed and Upgraded IBM, Dell, HP, and Cisco UCS vSphere hosts.o Performed vSphere ESXi host upgrades.o Used Dell iDRAC, IBM RSA and HP ILO for remote administration.

Jan 2014 - Jul 2014

Storage Engineer

(Atos) Rtp, Nc

BASFStorage Engineer RTP, North CarolinaJune 2012 to January 2014• Managed BASF Data Center• Projects: Server/data migration between servers, across sites and post migration testing. Data Center Rack and Stack (server re-racking and re-cabling project)o Installed/upgraded/administered 1200 Linux/Windows SUSE/2003/2008/2012 servers using Group Policy/Patching/AD/eDirectory/Physical/Virtual servers with VMware.o Installed, upgraded, and maintained Cisco UCS B/C260, B/C460 servers.

Jun 2012 - Jan 2014

Storage Engineer

(Teksystems) – Cary, Nc

Technical delivery of customer systems including proactive maintenance, performance tuning, problem solving, and remediation.• Assisted Lead to ensure all alerts and tickets were processed according to Service-Level Agreements (SLAs)• Guaranteed, after remedying issue, proper documentation and processes were followed for incident, problem, and change management using Clarify and GAHD.• Verified SiteScope Alerts using SiteScope monitoring software.

Mar 2012 - Jun 2012

Storage Engineer

Emc

(Advantage Resourcing) – Durham, Nc, Emc Durham Center Of

• Installed|Symmetrix|DMX|VMAX, Clariion VNX, Isilon, DataDomain, Cisco and Brocade switches after planning configuration.• Catalyst 2960, 2960-S, 3750-X, 3750-S, 3750G, 6509, 5548, 9509, Nexus 5000|7000.• Cisco 1900|2900 series routers; C260, C460 servers. Used ECC to swap|manage|replace|resync Hard Drives in DMX|VMAX Drive Bays Discovered|Monitored|Managed|Configured SANs. • Approved data center activities after reviewing documentation.

Jan 2012 - Mar 2012

Storage Engineer

Ibm

(Insight Global, Eclaro, Ctg) – Rtp, Nc

Responsible for complete storage build, physical connections to arrays, switches and routers (Cisco) (Fibre|SAS|SATA) and implementing of multiple vendor cards (Brocade, LSI) including updating firmware • Configured, integrated and troubleshooted IBM and third party Storage Vendors NetApp, Hitachi, EMC Symmetrix, DMX|VMAX and Isilon.• Managed Developers Lab for IBM Cloud Services and DNS zones for Linux|Active Directory (AD)• Documented storage and backup configurations including TSM.• Performed new VM builds to assist on projects, Compaq|HP DL 360|380 w/Infiniband, Fibre, iSCSI, FCOE, IBM DS 4000|8000 storage series, Tivoli Backup servers.• Maintained physical drives on old and new storage devices• Used Vmotion to maintain uptime while upgrading|servicing Blade Servers• Configured DR mirror site for Data Center.• Managed DNS zones for Linux|AD.• Configured DHCP clients• Planned and managed IP addresses with PHPip.• Break|Fix clients and servers.• Configured and troubleshooted storage products System X|Blade|p Series.• Responsible for complete storage build, physical connections to arrays, switches and routers (Cisco) (Fibre|SAS|SATA) and implementing of multiple vendor cards (Brocade, LSI) including updating firmware.• Configured, integrated and troubleshooted IBM and third party Storage Vendors NetApp, Hitachi, EMC Symmetrix, DMX|VMAX.• Documented storage and backup configurations including TSM.• Performed new VM builds to assist on projects, Updated TSM to 6.1 versions on clients. Vmotion 'Ripple move' VM SAN storage to convert SAN disks to use 8mb block size, AIX upgrade procedures to perform patching. Compaq|HP DL 360|380 w/Infiniband, Fibre, iSCSI, FCOE, IBM DS 4000|8000 storage series, Tivoli Backup servers.• Configured and troubleshooted storage products System X|Blade.• Configured, integrated and tested IBM and third party Storage Vendors NetApp, Hitachi

Jan 2011 - Jan 2012
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Colleagues at Peraton

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2 education records

John Clark education

Associate Of Arts And Sciences (Aas), Electrical, Electronics And Communications Engineering

Graduated with Applied Associate of Science (A.A.S.) in Electronic Systems Technology

FAQ

Frequently asked questions about John Clark

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

What company does John Clark work for?

John Clark works for Peraton.

What is John Clark's role at Peraton?

John Clark is listed as Senior Windows System Administrator at Peraton.

What is John Clark's email address?

AeroLeads has found 1 work email signal at @cs.com for John Clark at Peraton.

What is John Clark's phone number?

AeroLeads has found 3 phone signal(s) with area code 919, 726 for John Clark at Peraton.

Where is John Clark based?

John Clark is based in Durham, North Carolina, United States while working with Peraton.

What companies has John Clark worked for?

John Clark has worked for Peraton, Dell Technologies, Carpenter Consulting (Chicago, Il), Scm Metal Products, Inc., and Ibm.

Who are John Clark's colleagues at Peraton?

John Clark's colleagues at Peraton include Jin Lee, Angela Halt, Mauyan S., Andy Castro, and Dustin Reick.

How can I contact John Clark?

You can use AeroLeads to view verified contact signals for John Clark at Peraton, including work email, phone, and LinkedIn data when available.

What schools did John Clark attend?

John Clark holds Bachelor Of Arts (Ba), Anthropology from University Of Kansas.

What skills is John Clark known for?

John Clark is listed with skills including Servers, Vmware Esx, San, Windows Server, Linux, Dns, Operating Systems, and Active Directory.

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