John Guillen

Geologist/Lead Pilot Plant Operator

John’s experience includes ten years of multidisciplinary QA & QC scientific and technical roles. Prior to joining Terra, John was a Laboratory Calibration Specialist for a construction material testing company. John has also traveled across the US to calibrate technical instruments for accredited labs with ISO certifications at concrete, soil, chemical, asphalt, and binder laboratories.

John holds a BS in Applied Geology from MSU Denver.