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Now hiring · Sioux City, Iowa

Materials Laboratory Technician — Sioux City, IA

Laboratory technicians turn field samples into the numbers projects run on: Proctor curves, sieve analyses, Atterberg limits, moisture contents, and compressive strength breaks. You will work inside a documented AASHTO R18 quality system with calibrated equipment and real accountability for every result that leaves the lab.

This is a project-site position supporting programs in and around Sioux City, Iowa, staffed on a project basis with travel as assigned.

Field days near Sioux City mean deep-loess earthwork where moisture control is the whole job, with variety that builds a career, not a resume.

What you'll do

• Perform ASTM D698, D1557, D2216, D4318, C136, and C39 testing
• Maintain calibration, standardization, and quality records
• Log samples and preserve chain of custody
• Break cylinders and report strength results same day
• Support proficiency sample programs and accreditation assessments

What we're looking for

• Careful hands, clean documentation habits, mechanical aptitude
• Prior lab or CMT experience a plus, not required — we train
• Comfortable with repetitive precision work done right every time

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The work behind this job in Sioux City

Materials Testing in Sioux City · Geotechnical in Sioux City · Forensic in Sioux City

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