Project Quality Engineer

With over 55 years of experience and a team of 450+ employees, Preston Companies is built on a foundation of Quality, Integrity, and Service.

At Preston Pipelines, we deliver reliable underground utility installations for projects of all sizes, supported by skilled teams and modern, sustainable equipment.   Your success matters.

We offer a collaborative, inclusive work environment with opportunities for growth, professional development, and work-life balance—so you can build a rewarding career while making a real impact.   Preston Companies is proud to be recognized as a 2025 Bay Area Best Places to Work winner by the San Francisco Business Times and the Silicon Valley Business Journal —marking our fifth consecutive year on the list and a #4 ranking in the 100–199 employee category.

This recognition reflects our strong culture and the people who make Preston a great place to work.

Position Overview The Project Quali...