Entry-Level CMT Field Tech – Concrete & Materials

JARBO; St. Louis (MO); On-site; USD 25,000 - 39,000; Full time

Benefits offered by this job

Competitive hourly compensation

On-the-job training program

Certification sponsorship (ACI, NICET,

ICC credentials)

Safety training: OSHA 10, CPR/First A​

Job summary

JARBO in the St. Louis metro area seeks an Engineering Field Technician - Construction Materials Tester (CMT). This entry-level role offers on-the-job training and exposure to field and lab testing of concrete, soil, asphalt, and aggregate across regional projects.

You will gain hands-on experience with ASTM/AASHTO standards and documentation, plus certification sponsorship for ACI, NICET, and ICC. Must have a valid driver’s license and be able to lift up to 50 lbs; safety training provided.

Qualifications

• High school diploma or equivalent.
• Valid driver's license with clean driving record.
• Ability to lift, push, and pull up to 50 pounds.
• Proficiency with commonly used computer software and reporting systems.
• Ability to work outdoors in varying weather conditions.

Responsibilities

• Perform field quality control tests on plastic concrete including slump, air content, and cylinder preparation.
• Conduct field density testing on soil, asphalt, and aggregate using nuclear density gauges.
• Execute routine laboratory tests on construction materials per ASTM and AASHTO standards.
• Prepare written daily field observation reports and project summary documentation.
• Obtain and maintain required safety certifications within specified timeframes.

Skills

Physical stamina

Field testing

Data recording

Communication

Education

High school diploma or equivalent

Tools

ACI Level I certification

NICET or ICC certification

Nuclear Density Gauge certification

Job description

JARBO in the St. Louis metro area seeks an Engineering Field Technician - Construction Materials Tester (CMT). This entry-level role offers on-the-job training and exposure to field and lab testing of concrete, soil, asphalt, and aggregate across regional projects.

You will gain hands-on experience with ASTM/AASHTO standards and documentation, plus certification sponsorship for ACI, NICET, and ICC. Must have a valid driver’s license and be able to lift up to 50 lbs; safety training provided.