Soil & Concrete Lab Technician — Precision & Training

Construction Material Testing; Helena (MT); On-site; USD 52,000 - 73,000; Full time

Job summary

Construction Material Testing seeks a Laboratory Technician to turn field samples into numbers—Proctor curves, sieve analyses, Atterberg limits, moisture contents, and compressive strength. You’ll work in an AASHTO R18 quality system with calibrated equipment and accountability for every result.

Duties include performing ASTM tests (D698, D1557, D2216, D4318, C136, C39), maintaining calibration and records, logging samples, breaking cylinders and reporting results the same day, and supporting

Qualifications

• 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.

Responsibilities

• Perform ASTM testing (D698, D1557, D2216, D4318, C136, C39).
• Maintain calibration, standardization, and quality records.
• Log samples and preserve chain of custody.

Skills

Careful hands

Clean documentation

Mechanical aptitude

Job description

Construction Material Testing seeks a Laboratory Technician to turn field samples into numbers—Proctor curves, sieve analyses, Atterberg limits, moisture contents, and compressive strength. You’ll work in an AASHTO R18 quality system with calibrated equipment and accountability for every result.

Duties include performing ASTM tests (D698, D1557, D2216, D4318, C136, C39), maintaining calibration and records, logging samples, breaking cylinders and reporting results the same day, and supporting