Christopher OCallaghan: Email & Phone Number

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Cyber Security Engineer at Take2 Consulting, LLC|Washington DC-Baltimore Area, United States

Position:

Cyber Security Engineer at Take2 Consulting, LLC

Location:

Washington DC-Baltimore Area, United States

View Christopher OCallaghan's Email

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Last updated: 2026-07-28

Updated: 2026-07-28

Found email addresses for Christopher OCallaghan:

Business emails:

c********************n@asmr.com,

c********************n@navy.com

Personal emails:

c**********n@gmail.com,

c***********n@gmail.com

Found phones for Christopher OCallaghan:

+1-205-***-**31,

+1-623-***-**04,

+1-205-***-**41,

+1-623-***-**40

A different Christopher OCallaghan?

Work Experience 22 years

Cyber Security Engineer at Take2 Consulting, LLC

Nov 2018 - Current

Network Security Engineer at ASM Research

Jan 2016 - Nov 2018

Firewall/Network Engineer at US Navy

Sep 2004 - Sep 2011

Christopher holds (ISC)2 Security CISSP (ISC2-CISSP) certifications.

Education

Bachelor of Science - Computer Science at California State University - San Francisco

Master of Science - Computer Science at The George Washington University

Frequently Asked Questions

What is Christopher OCallaghan's email address?

SignalHire found verified email addresses for Christopher OCallaghan, both business and personal. Their business email is c********************n@asmr.com, and personal emails include c**********n@gmail.com, and c***********n@gmail.com.

What is Christopher OCallaghan's phone number?

SignalHire found multiple verified phone numbers for Christopher OCallaghan: +1-205-***-**31, +1-623-***-**04, and +1-205-***-**41.

How do I contact Christopher OCallaghan at Take2 Consulting, LLC?

You can reach Christopher OCallaghan 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 Christopher OCallaghan's professional background?

Christopher OCallaghan has 22 years of professional experience. They have held roles including Network Security Engineer, and Firewall/Network Engineer at companies such as ASM Research, and US Navy. Their education includes Bachelor of Science - Computer Science from California State University - San Francisco, and Master of Science - Computer Science from The George Washington University.

Is Christopher OCallaghan's contact information up to date?

Yes. Christopher OCallaghan's SignalHire profile was last updated on 28 July 2026, reflecting their current position as Cyber Security Engineer at Take2 Consulting, LLC in Vienna, VA, United States.

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