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Now hiring · San Antonio, Texas
Materials Laboratory Technician — San Antonio, TX
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 position serves San Antonio and surrounding Texas projects, dispatched through our Sugar Land operations hub.
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
Attach a resume and list any current certifications (ACI, NICET, ICC, nuclear gauge).