David: Email & Phone Number

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Staff Security Engineer at Insperity|Grayling, Michigan, United States

Position:

Staff Security Engineer at Insperity

Location:

Grayling, Michigan, United States

View David's Email

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Last updated: 2026-06-22

Updated: 2026-06-22

Found email addresses for David:

Business emails:

d**********l@0pre.com

Personal emails:

d***@itc-holdings.com,

d***@hotmail.com,

d***@htcinc.com,

d***@gmail.com

Found phones for David:

+1-623-***-**87,

+1-909-***-**77

A different David?

Work Experience 21 years

Staff Security Engineer at Insperity

Oct 2018 - Current

Senior Cyber Security Engineer at ITC Holdings Corp.

Feb 2015 - Oct 2018

Cyber Security Analyst at ITC Holdings Corp.

Jun 2014 - Feb 2015

Server Engineer at Ciber Global

Feb 2013 - Jun 2014

Systems Engineer at Freedom One Financial Group

May 2005 - Feb 2013

David started working in 2005, then the employee has changed 3 companies and 4 jobs. On average, David works for one company for 4 years 3 months.

David holds Microsoft Certified: Security Operations Analyst Associate, Microsoft Certified: Security, Compliance, and Identity Fundamentals, and Microsoft Certified: Azure Fundamentals certifications.

Education

Graduate Certificate at SANS Technology Institute

Bachelor of Applied Arts at Central Michigan University

Frequently Asked Questions

What is David's email address?

SignalHire found verified email addresses for David, both business and personal. Their business email is d**********l@0pre.com, and personal emails include d***@itc-holdings.com, d***@hotmail.com, and d***@htcinc.com.

What is David's phone number?

SignalHire found multiple verified phone numbers for David: +1-623-***-**87, and +1-909-***-**77.

How do I contact David at Insperity?

You can reach David 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 David's professional background?

David has 21 years of professional experience. They have held roles including Senior Cyber Security Engineer, Cyber Security Analyst, and Server Engineer at companies such as ITC Holdings Corp., ITC Holdings Corp., and Ciber Global. Their education includes Graduate Certificate from SANS Technology Institute, and Bachelor of Applied Arts from Central Michigan University.

Is David's contact information up to date?

Yes. David's SignalHire profile was last updated on 22 June 2026, reflecting their current position as Staff Security Engineer at Insperity in Kingwood, TX, United States.

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