Join our growing Team!

The OnQuest companies have career opportunities at our home office in San Dimas, CA, in Houston, TX, and in Calgary, Alberta. We offer a professional and collegial work environment, dynamic and challenging technical assignments, and opportunities for career growth. We are committed to maintaining work-life balance, and offer competitive compensation, including performance bonus, healthcare and 401(k).

We are currently seeking qualified candidates for the open positions listed below. Applicants with demonstrable competency and reasonable combination of education, training, or experience are encouraged to apply. Experience can be progressive.

your resume and salary history. (Please include the title of the job in the Subject field.) Or send via U.S. mail to:

OnQuest, Inc.
Attn. Recruiting
180 E. Arrow Hwy
San Dimas, CA 91773

-- All inquiries are treated in strictest confidence. No phone calls, please. --

No Current Openings

OnQuest, Inc. is a leader in developing specialized, mid-sized process plants for the new world of energy production: LNG, hydrogen, ammonia, methanol, and waste-to-energy and renewables. We provide engineering design, construction, and turnkey project management for some of the world's largest oil and petrochemical companies. One of the world's foremost providers of direct-fired heaters and related combustion technologies, OnQuest also provides NOx reduction technologies and execute revamps and rehabilitation projects. OnQuest is a subsidiary of Primoris Services Corporation (NASDAQ: PRIM), currently ranked 44th in the ENR 400 listing of construction companies in the U.S. More information is at

We have offices in San Dimas, CA, Houston, TX, and Calgary, Alberta. Primoris Services Corporation owns construction companies ARB, Inc., James Construction, Rockford Corporation, and Cardinal Contractors. More information is at