John Greinig
AeroLeads people directory · profile

John Greinig Email & Phone Number

SR. Systems Administrator at UTStarcom
Location: Wood Dale, Illinois, United States 1 work role
1 work email found @utstar.com 1 phone found area 630 LinkedIn matched
✓ Verified August 2026 4 data sources Profile completeness 71%

Contact Signals · 1 work email · 1 phone

Work email j****@utstar.com
Direct phone (630) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Role
SR. Systems Administrator
Location
Wood Dale, Illinois, United States
Company size

Who is John Greinig? Overview

A concise factual answer block for searchers comparing this professional profile.

Quick answer

John Greinig is listed as SR. Systems Administrator at UTStarcom, a with 1046 employees, based in Wood Dale, Illinois, United States. AeroLeads shows a work email signal at utstar.com, phone signal with area code 630, and a matched LinkedIn profile for John Greinig.

Company email context

Email format at UTStarcom

This section adds company-level context without repeating John Greinig's masked contact details.

{first}.{last}@utstar.com
89% confidence

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

Profile bio

About John Greinig

Over 8 years of professional experience as a systems administrator migrating, maintaining, consolidating, virtualization, and troubleshooting Microsoft Active Directory domains and Microsoft Exchange systems. Solidifying my expertise by holding certifications with CompTIA, Microsoft and Cisco systems. Always interested in migration projects, as well as implementing new technologies. I am also proficient in multi vendor virtualization applications and servers.Specialties: Microsoft Active Directory, Microsoft Exchange, VMware, vSphere, VMware ESX & ESXi, Hyper-V, Xen, IIS, WSS (sharepoint), WSUS, Veritas NetBackup, Symantec SAV, McAfee EPO, DNS, WINS, VBScript, SMS and Microsoft Group Policy

Current workplace

John Greinig's current company

Company context helps verify the profile and gives searchers a useful next step.

UTStarcom
Utstarcom
SR. Systems Administrator
san jose, california, united states
Website
Employees
1046
AeroLeads page
1 role

John Greinig work experience

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

  • Utstarcom
    Sr. Systems Administrator
    Aug 2006 - Present
    Maintain, Troubleshoot and Administer Microsoft Active Directory 2003 and Exchange server 2003. Design and Maintain the internal DNS 3 tier architecture. Administration of Veritas NetBackup, Symantec SAV 11, and SharePoint services. Design and Deploy Microsoft Group policy for the entire forest as well as use VBScript to automate administrative tasks.
Team & coworkers

Colleagues at UTStarcom

Other employees you can reach at utstar.com. View company contacts for 1046 employees →

FAQ

Frequently asked questions about John Greinig

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

What company does John Greinig work for?

John Greinig works for UTStarcom.

What is John Greinig's role at UTStarcom?

John Greinig is listed as SR. Systems Administrator at UTStarcom.

What is John Greinig's email address?

AeroLeads has found 1 work email signal at @utstar.com for John Greinig at UTStarcom.

What is John Greinig's phone number?

AeroLeads has found 1 phone signal(s) with area code 630 for John Greinig at UTStarcom.

Where is John Greinig based?

John Greinig is based in Wood Dale, Illinois, United States while working with UTStarcom.

What companies has John Greinig worked for?

John Greinig has worked for Utstarcom.

Who are John Greinig's colleagues at UTStarcom?

John Greinig's colleagues at UTStarcom include Chen Ellen, Cherry Song, Tong Yu, Atsushi Ito, and Yong Chen.

How can I contact John Greinig?

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

Find 750M verified contacts

Search by job title, company, industry, location, and seniority. Export verified B2B contact data when you need it.