Sean Herr
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Sean Herr Email & Phone Number

Senior Systems Administrator at Great Lakes Credit Union
Location: Buffalo Grove, Illinois, United States 10 work roles 1 school
1 work email found @takeda.com LinkedIn matched
✓ Verified July 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email

Work email s****@takeda.com
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Role
Senior Systems Administrator
Location
Buffalo Grove, Illinois, United States
Company size

Who is Sean Herr? Overview

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Quick answer

Sean Herr is listed as Senior Systems Administrator at Great Lakes Credit Union, a with 222 employees, based in Buffalo Grove, Illinois, United States. AeroLeads shows a work email signal at takeda.com and a matched LinkedIn profile for Sean Herr.

Sean Herr previously worked as Senior System Administrator at Great Lakes Credit Union and President at Yournet Connection Inc. Sean Herr holds Associate Of Applied Science, Electrical Engineering Technology from Itt Technical Institute.

Company email context

Email format at Great Lakes Credit Union

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{first}.{last}@takeda.com
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AeroLeads found 1 current-domain work email signal for Sean Herr. Compare company email patterns before reaching out.

Profile bio

About Sean Herr

Sean Herr is a Senior Systems Administrator at Great Lakes Credit Union. He possess expertise in e commerce, account management, management, strategic planning, social media marketing and 45 more skills.

Listed skills include E Commerce, Account Management, Management, Strategic Planning, and 46 others.

Current workplace

Sean Herr's current company

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Great Lakes Credit Union
Great Lakes Credit Union
Senior Systems Administrator
Buffalo Grove, IL, US
Website
Employees
222
AeroLeads page
10 roles · 21 years

Sean Herr work experience

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

Owner / It Manager / Lead Consultant

Buffalo Grove Il

Built a Full service managed services provider from ground up managing 100+ clients.100% Hands on providing on-site / remote Server and Workstation Maintenance and Repair.Successfully handled all bookkeeping A/R and A/P, and Vendor contract negotiations.Provided written documentation and procedures for all internal processes and tasks.Handled project management and scheduling for company and contractors.Provided high end server / network and security design and maintenance.Maintain several networks using Kaseya IT Management Software.Setup, configured and used Kaseya agents to handle automation and scripting for workstation maintenance and software deployment. Setup, configured, and used Kaseya Help Desk Software.

President

Complete Source It
Sep 2013 - Sep 2022

Director Of Information Technology

Des Plaines

Walked into a huge project here. Migrated all the servers to the Azure cloud, setup a S2S vpn for local syncs to the cloud. Moved AD to the Azure, migrated all email from Godaddy to O365, had to re-ip the entire network as it was using public IP 's internal. rebuilt all servers from scratch and configured all NAS and vmware system correctly. Setup bandwidth monitoring using Cacti and network / server monitoring using Nagios. Implemented a help desk ticketing system and implemented MS Teams for communication. I am pretty much done here as I see no where to grow from here.

Dec 2019 - Aug 2020

System Administrator

Deerfield

Oct 2018 - Dec 2019

President / Owner / It Director

Ync Hosting, Inc.

Schaumburg

Superior driver of above-average customer satisfaction via construction, implementation & maintenance of web hosting infrastructures and provision of quick, reliable & effective technical support services on round-the-clock basis.Provided exemplary handling & resolution of problems with servers and VoIP communications systems.Responsible for efficient, accurate handling of all company financial matters, such as bookkeeping and employee payroll.

2011 - 2014 ~3 yrs

President & Owner

@Yournet Connection, Inc.

Schaumburg Il

Responsible for devising and instituting corporate operational, sales & marketing strategies to produce greater levels of client satisfaction and revenue, as well as to ensure positive company reputation among customer base.100% Hands on at all times and in all positions with this company, was available round-the clock to address & resolve problems.Designed and Implemented all company policies including, but not limited to HR / AR / AP.Handled all Vendor and Client contract negotiationsHandle all high level sales, with over 90% close rateReduced annual telecom spend with maximum investment value by re-negotiating competitive bids and strategically sizing capacity.Personally invested in driving operations as if actual company owner and successfully pushed revenue generation to over $3MM per year by supplying ever-expanding client base with T1 & dialup internet service. Continually formulated, assessed & revised company policies to maximize customer satisfaction, employee effectiveness and financial efficiency.Made it personal mission to learn all company positions, to facilitate greater understanding of operations and develop appropriate automation to boost efficiencies & slash expenses.Successfully minimized human error in all company tasks through strong Checks & Balances and personally attended to correction of high-level network & security matters. Tasked with efficiently supervising staff of ten, engaged in providing server, router & network maintenance on round-the-clock schedule.Devised, constructed, installed & maintained internet servers handling online connections for over 10,000 clients.

2006 - 2012 ~6 yrs
Team & coworkers

Colleagues at Great Lakes Credit Union

Other employees you can reach at glcu.org. View company contacts for 222 employees →

1 education record

Sean Herr education

  • Itt Technical Institute
    Itt Technical Institute
    Electrical Engineering Technology
FAQ

Frequently asked questions about Sean Herr

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

What company does Sean Herr work for?

Sean Herr works for Great Lakes Credit Union.

What is Sean Herr's role at Great Lakes Credit Union?

Sean Herr is listed as Senior Systems Administrator at Great Lakes Credit Union.

What is Sean Herr's email address?

AeroLeads has found 1 work email signal at @takeda.com for Sean Herr at Great Lakes Credit Union.

Where is Sean Herr based?

Sean Herr is based in Buffalo Grove, Illinois, United States while working with Great Lakes Credit Union.

What companies has Sean Herr worked for?

Sean Herr has worked for Great Lakes Credit Union, Yournet Connection Inc, Complete Source It, Cardiomedix Inc., and Takeda.

Who are Sean Herr's colleagues at Great Lakes Credit Union?

Sean Herr's colleagues at Great Lakes Credit Union include Teresa Linkous, Michele V., Riley Franklin, Cristian Hernandez, and Gina Castillo.

How can I contact Sean Herr?

You can use AeroLeads to view verified contact signals for Sean Herr at Great Lakes Credit Union, including work email, phone, and LinkedIn data when available.

What schools did Sean Herr attend?

Sean Herr holds Associate Of Applied Science, Electrical Engineering Technology from Itt Technical Institute.

What skills is Sean Herr known for?

Sean Herr is listed with skills including E Commerce, Account Management, Management, Strategic Planning, Social Media Marketing, Sales, Project Management, and Networking.

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