Gregory Trehey

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Principal Engineer at HALOGEN ENGINEERING GROUP, INC|Arnold, Maryland, United States

Position:

Principal Engineer at HALOGEN ENGINEERING GROUP, INC

Location:

Arnold, Maryland, United States

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Last updated: 2025-11-11
Updated: 2025-11-11

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Work Experience 26 years

Principal Engineer at HALOGEN ENGINEERING GROUP, INC

Sep 2024 - Current

Senior Principal Systems Engineer at Nightwing

Apr 2024 - Sep 2024

Senior Principal System Engineer at Raytheon

Aug 2020 - Apr 2024

Senior Engineering Technical Manager at General Dynamics Mission Systems

Jun 2019 - Aug 2020

Senior Principal System Engineer at General Dynamics Mission Systems

Jul 2017 - Jun 2019

Senior System Engineer at Northrop Grumman

May 2014 - Jun 2017

Senior Principal at CACI International Inc

May 2010 - May 2014

Business Manager at Solvern Innovations

Jan 2009 - May 2010

Associate at Booz Allen Hamilton

Aug 2004 - Jan 2009

Program Manager/Analyst at Raytheon

Nov 2000 - Jun 2004

Gregory Trehey started working in 2000, then the employee has changed 8 companies and 8 jobs. On average, Gregory Trehey works for one company for 2 years 6 months.

Education

Master of Science (M.S.) at University of Maryland Global Campus

Bachelor’s Degree at University of Wisconsin-Platteville

Frequently Asked Questions

What is Gregory Trehey's minimum period of employment in the companies?

Gregory Trehey's minimum period of employment in various companies is 5 months.

What is Gregory Trehey's average duration of employment for different companies?

On average, Gregory Trehey works for one company for 2 years 7 months

What industries has Gregory Trehey worked in?

Gregory Trehey works in the Information Technology and Services. Previously, Gregory Trehey worked in the Defense & Space, and Computer Software.

What positions has Gregory Trehey held before?

Previously, Gregory Trehey worked as a Senior Principal Systems Engineer, and Senior Principal System Engineer, and Senior Engineering Technical Manager, and Senior System Engineer, and Senior Principal.

How do I contact Gregory Trehey?

Gregory Trehey's phone number is +1-***-***-8907. Sign up to get contact details.

Who is the President/CEO/Director of the HALOGEN ENGINEERING GROUP, INC?

The President/CEO/Director of the HALOGEN ENGINEERING GROUP, INC is D Scott Jackson

Who are Gregory Trehey's peers at other companies?

Gregory Trehey's peers at other companies are Samaresh Singh and Michael Adamovsky and Tzu Yun Chien

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