Jonathan Keefer: Email & Phone Number

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Senior Project Engineer at GMH Builders|Petaluma, California, United States

Position:

Senior Project Engineer at GMH Builders

Location:

Petaluma, California, United States

View Jonathan Keefer's Email

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Last updated: 2025-11-05

Updated: 2025-11-05

Found email addresses for Jonathan Keefer:

Business emails:

j**@gmhbuild.com

Found phone for Jonathan Keefer:

+1-***-***-7341

A different Jonathan Keefer?

Work Experience 5 years

Senior Project Engineer at GMH Builders

Jun 2025 - Current

Project Engineer at GMH Builders

Jul 2023 - Jun 2025

Project Engineering Intern at Argonaut Constructors, Inc

Jun 2022 - Sep 2022

Intern at Nova Group, Inc.

Jun 2021 - Sep 2021

Jonathan Keefer started working in 2021, then the employee has changed 2 companies and 3 jobs. On average, Jonathan Keefer works for one company for 10 months.

Education

Bachelor of Engineering - BE at California Polytechnic State University-San Luis Obispo

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