Jon Mueller

Jon Mueller: Email & Phone Number

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Assistant Director of Security at Granbury ISD|Granbury, Texas, United States

Position:

Assistant Director of Security at Granbury ISD

Location:

Granbury, Texas, United States

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Last updated: 2026-05-29
Updated: 2026-05-29

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Work Experience 38 years

Assistant Director of Security at Granbury ISD

Aug 2022 - Current

Interim Director of Security at WISD - Weatherford ISD

Feb 2019 - Aug 2022

Correctional Officer at Hood County Sheriffs Dept

Jun 2018 - Feb 2019

Sergeant/Security Officer at Academy School District 20

Dec 2014 - May 2018

Lieutenant/Deputy Sheriff at El Paso County Sheriff's Office

Aug 1988 - Oct 2013

Jon Mueller started working in 1988, then the employee has changed 4 companies and 4 jobs. On average, Jon Mueller works for one company for 7 years 4 months.

Their professional focus is Director level, Firearms Instruction, and Hiring across 3 core areas.

Education

Associate's degree at Pikes Peak Community College

Frequently Asked Questions

What is Jon Mueller's email address?

SignalHire found a verified business email address for Jon Mueller: j*********r@granburyisd.org.

What is Jon Mueller's phone number?

SignalHire found a verified phone number for Jon Mueller: +1-***-***-4775.

How do I contact Jon Mueller at Granbury ISD?

You can reach Jon Mueller through SignalHire by unlocking their verified email and direct phone number (free signup, no credit card needed). SignalHire is the fastest route if you need their contact details immediately.

What is Jon Mueller's professional background?

Jon Mueller has 38 years of professional experience. They have held roles including Interim Director of Security, Correctional Officer, and Sergeant/Security Officer at companies such as WISD - Weatherford ISD, Hood County Sheriffs Dept, and Academy School District 20. Their education includes Associate's degree from Pikes Peak Community College.

Is Jon Mueller's contact information up to date?

Yes. Jon Mueller's SignalHire profile was last updated on 29 May 2026, reflecting their current position as Assistant Director of Security at Granbury ISD in Granbury, Texas, United States.

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