Telecommunicator And Calltaker
Current
May 2024 - Present
AeroLeads people directory · profile
John Hierl Email & Phone Number
Telecommunicator and Calltaker at Cook County 911
at
Cook County Sheriff’s Office
1 work email found
@wi.gov
LinkedIn matched
✓ Verified Jul 2026
4 data sources
Profile completeness 100%
Current company
Role
Telecommunicator and Calltaker at Cook County 911
Location
Chicago, Illinois, United States
Company size
Who is John Hierl? Overview
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Quick answer
John Hierl is listed as Telecommunicator and Calltaker at Cook County 911 at Cook County Sheriff’s Office, a with 1213 employees, based in Chicago, Illinois, United States. AeroLeads shows a work email signal at wi.gov and a matched LinkedIn profile for John Hierl.
John Hierl previously worked as Telecommunicator and Calltaker at Cook County Sheriff’S Office and Appointments Director at Governor Tony Evers. John Hierl holds Bachelor Of Arts - Ba, Political Science from University Of Illinois At Urbana-Champaign.
Company email context
Email format at Cook County Sheriff’s Office
This section adds company-level context without repeating John Hierl's masked contact details.
{first}.{last}@wi.gov
86% confidence
AeroLeads found 1 current-domain work email signal for John Hierl. Compare company email patterns before reaching out.
Profile bio
About John Hierl
I am a graduate of the University of Illinois at Urbana-Champaign with a major in Political Science, and a minor in Public Relations. I'm based out of Chicago, and have experience with campaign work, constituent services, project management, and public relations.
Listed skills include Project Management, Public Relations, Problem Solving, Political Campaigns, and 1 others.
Current workplace
John Hierl's current company
Company context helps verify the profile and gives searchers a useful next step.
Cook County Sheriff’S Office
10 roles
John Hierl work experience
A career timeline built from the work history available for this profile.
Appointments Director
Apr 2023 - Aug 2023
Casework Manager
Jun 2021 - Apr 2023
Executive Assistant And Constituent Services Specialist
Lieutenant Governor Mandela Barnes
Oct 2020 - Jun 2021
Operations Assistant
Jul 2020 - Oct 2020
Teaching Assistant
Facilitated an engaging learning environment, mentored first-year students, completed administrative tasks, referred students to appropriate campus resources and services
Aug 2019 - Dec 2019
Team Member
Speedily and efficiently work drive thru, maintain overall restaurant cleanliness, work grills and fryers
May 2015 - Dec 2019
Office Of Appointments Intern
Conducted background checks, compiled candidate profiles, and prepared materials to be used in meetings between the Director of Appointments and the Governor
May 2019 - Jun 2019
Betsy Dirksen Londrigan Campaign Intern
Betsy Dirksen Londrigan For Congress
Engaged with voters while canvassing, efficiently phone banked, worked fundraisers, and assisted in Get Out the Vote efforts for the candidate in Illinois’ 13th Congressional District
Aug 2018 - Nov 2018
Campaign Intern
Collected nomination signatures, mailed lit pieces, worked fundraisers, conducted opposition research, worked inauguration
May 2018 - Jun 2018
Team & coworkers
Colleagues at Cook County Sheriff’s Office
Other employees you can reach at cookcountysheriff.org. View company contacts for 1213 employees →
KM
Kevin Miller
Colleague at Cook County Sheriff’S OfficeGreater Chicago Area, United States
View →
LH
Louis Harston
Colleague at Cook County Sheriff’S OfficeNashville, Tennessee, United States
View →
RB
Robert Brown
Colleague at Cook County Sheriff’S OfficeGreater Chicago Area, United States
View →
JP
John Pradun
Colleague at Cook County Sheriff’S OfficeSkokie, Illinois, United States
View →
GB
Gerry Belpedio
Colleague at Cook County Sheriff’S OfficeGreater Chicago Area, United States
View →
MB
Michael Brewer
Colleague at Cook County Sheriff’S OfficeMidlothian, Illinois, United States
View →
AC
Alana Collins
Colleague at Cook County Sheriff’S OfficeChicago, Illinois, United States
View →
HO
Hector Ochoa
Colleague at Cook County Sheriff’S OfficeWilmington, Illinois, United States
View →
JB
Jade Bradberry
Colleague at Cook County Sheriff’S OfficeChicago, Illinois, United States
View →
VG
Victor Gary
Colleague at Cook County Sheriff’S OfficeRichton Park, Illinois, United States
View →
Kevin Miller
Colleague at Cook County Sheriff’S OfficeGreater Chicago Area, United States
View →
LH
Louis Harston
Colleague at Cook County Sheriff’S OfficeNashville, Tennessee, United States
View →
RB
Robert Brown
Colleague at Cook County Sheriff’S OfficeGreater Chicago Area, United States
View →
JP
John Pradun
Colleague at Cook County Sheriff’S OfficeSkokie, Illinois, United States
View →
GB
Gerry Belpedio
Colleague at Cook County Sheriff’S OfficeGreater Chicago Area, United States
View →
MB
Michael Brewer
Colleague at Cook County Sheriff’S OfficeMidlothian, Illinois, United States
View →
AC
Alana Collins
Colleague at Cook County Sheriff’S OfficeChicago, Illinois, United States
View →
HO
Hector Ochoa
Colleague at Cook County Sheriff’S OfficeWilmington, Illinois, United States
View →
JB
Jade Bradberry
Colleague at Cook County Sheriff’S OfficeChicago, Illinois, United States
View →
VG
Victor Gary
Colleague at Cook County Sheriff’S OfficeRichton Park, Illinois, United States
View →
1 education record
John Hierl education
FAQ
Frequently asked questions about John Hierl
Quick answers generated from the profile data available on this page.
What company does John Hierl work for?
John Hierl works for Cook County Sheriff’s Office.
What is John Hierl's role at Cook County Sheriff’s Office?
John Hierl is listed as Telecommunicator and Calltaker at Cook County 911 at Cook County Sheriff’s Office.
What is John Hierl's email address?
AeroLeads has found 1 work email signal at @wi.gov for John Hierl at Cook County Sheriff’s Office.
Where is John Hierl based?
John Hierl is based in Chicago, Illinois, United States while working with Cook County Sheriff’s Office.
What companies has John Hierl worked for?
John Hierl has worked for Cook County Sheriff’S Office, Governor Tony Evers, Lieutenant Governor Mandela Barnes, University Of Illinois At Urbana-Champaign, and White Castle.
Who are John Hierl's colleagues at Cook County Sheriff’s Office?
John Hierl's colleagues at Cook County Sheriff’s Office include Kevin Miller, Louis Harston, Robert Brown, John Pradun, and Gerry Belpedio.
How can I contact John Hierl?
You can use AeroLeads to view verified contact signals for John Hierl at Cook County Sheriff’s Office, including work email, phone, and LinkedIn data when available.
What schools did John Hierl attend?
John Hierl holds Bachelor Of Arts - Ba, Political Science from University Of Illinois At Urbana-Champaign.
What skills is John Hierl known for?
John Hierl is listed with skills including Project Management, Public Relations, Problem Solving, Political Campaigns, and Customer Service.
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John Hierl
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John Hierl
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