Materials Lab Technician: Precision Testing & Training

Construction Material Testing; South Bend (IN); On-site; USD 34,000 - 48,000; Full time

Job summary

Construction Material Testing is seeking a Laboratory Technician to transform field samples into precise numbers on Proctor curves, sieve analyses, Atterberg limits, moisture contents, and break-strength results. Work within a documented AASHTO R18 quality system with calibrated equipment and clear accountability for every result.

You will perform standard tests, log observations, and ensure accuracy across daily workflows, including breaking cylinders and reporting results for contractors and

Qualifications

• Careful hands and meticulous documentation are essential.
• Mechanical aptitude and ability to perform repetitive precise work.
• Previous lab or CMT experience is a plus, but training is provided.

Responsibilities

• 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

Skills

Careful hands

Clean documentation habits

Mechanical aptitude

Job description

Construction Material Testing is seeking a Laboratory Technician to transform field samples into precise numbers on Proctor curves, sieve analyses, Atterberg limits, moisture contents, and break-strength results. Work within a documented AASHTO R18 quality system with calibrated equipment and clear accountability for every result.

You will perform standard tests, log observations, and ensure accuracy across daily workflows, including breaking cylinders and reporting results for contractors and