John Ostrom

John Ostrom: Email & Phone Number

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System Design Engineer at Diversified|San Antonio, Texas, United States

Position:

System Design Engineer at Diversified

Location:

San Antonio, Texas, United States

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

Found email addresses for John Ostrom:

Business emails:
j*********m@zbeta.com
Personal emails:

Found phone for John Ostrom:

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Work Experience 11 years

System Design Engineer at Diversified

Feb 2026 - Current

System Design Engineer at ZBeta, Inc.

Jul 2025 - Feb 2026

System Designer II - Commercial at Everon

Apr 2024 - Jul 2025

Sr. Applications Engineer/Manager at Johnson Controls

Jan 2020 - Apr 2024

Project Manager at STANLEY Security

Jan 2018 - Jun 2019

Technical Trainer at Johnson Controls

Jan 2015 - Jan 2018

John Ostrom started working in 2015, then the employee has changed 4 companies and 4 jobs. On average, John Ostrom works for one company for 1 year 10 months.

Their professional focus is Access Control, Bluebeam, and BOMs across 3 core areas.

Frequently Asked Questions

What is John Ostrom's email address?

SignalHire found verified email addresses for John Ostrom, both business and personal. Their business email is j*********m@jci.com, and personal emails include j*********m@hotmail.com.

What is John Ostrom's phone number?

SignalHire found a verified phone number for John Ostrom: +1-***-***-7730.

How do I contact John Ostrom at Diversified?

You can reach John Ostrom 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 John Ostrom's professional background?

John Ostrom has 11 years of professional experience. They have held roles including System Design Engineer, System Designer II - Commercial, and Sr. Applications Engineer/Manager at companies such as ZBeta, Inc., Everon, and Johnson Controls.

Is John Ostrom's contact information up to date?

Yes. John Ostrom's SignalHire profile was last updated on 29 May 2026, reflecting their current position as System Design Engineer at Diversified in Plano, Texas, United States.

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