Construction Materials Tester

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

A leading geotechnical engineering firm in the St. Louis metro area seeks an Engineering Field Technician - Construction Materials Tester (CMT) to join our growing team. This entry-level position provides on-the-job training for candidates interested in construction quality control and materials testing. You'll perform field and laboratory testing on concrete, soil, asphalt, and aggregate materials across commercial and infrastructure projects throughout the region.

WHAT WE OFFER (BENEFITS & COMPENSATION)

• Competitive hourly compensation
• Comprehensive on-the-job training program for entry-level candidates
• Certification sponsorship including ACI, NICET, and ICC credentials
• Safety training provided: OSHA 10 Hour, CPR/First Aid, defensive driving
• Career advancement opportunities in geotechnical engineering

KEY RESPONSIBILITIES - ENGINEERING FIELD TECHNICIAN (CMT)

• 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

QUALIFICATIONS - ENGINEERING FIELD TECHNICIAN (CMT)

• High school diploma or equivalent required
• Valid driver's license with clean driving record and ability to operate company vehicles
• Capability to lift, push, and pull up to 50 pounds regularly
• Proficiency with commonly used computer software programs and reporting systems
• Ability to work outdoors in varying weather conditions with extended standing and walking

PREFERRED QUALIFICATIONS - CONSTRUCTION MATERIALS TESTING TECHNICIAN

• ACI (American Concrete Institute) Level I certification or ability to obtain within 6 months
• Nuclear Density Gauge (Troxler) certification and operational experience
• NICET or ICC certification is a plus
• Previous field experience in construction material testing or soil sampling

PHYSICAL REQUIREMENTS - ENGINEERING FIELD TECHNICIAN (CMT)

• Ability to stand and walk for extended periods throughout work shifts
• Manual dexterity to control, handle, and operate testing equipment with hands and fingers
• Physical capability to lift, push, and pull materials up to 50 pounds when necessary
• Willingness to work outdoors in all weather conditions at active construction sites
• Local travel within St. Louis metro area required; reliable transportation necessary