Construction Materials Laboratory Technician

Build Your Future With CMT

At CMT Technical Services (CMT), we're building more than just infrastructure-we're building communities, careers, and a culture rooted in integrity, collaboration, and technical excellence. As a trusted leader in materials testing, inspection, and engineering services, we help ensure the safety and strength of a wide variety of construction improvements ranging from highways and bridges to commercial, retail, and industrial buildings and energy projects. With a dynamic team of professionals across multiple regions, CMT empowers individuals to grow, innovate, and make a tangible impact on the world around them. Join us - and be part of something built to last.

We are seeking a Soils Laboratory Technician to join our laboratory team in Houston, Texas. This is a full-time, hands-on role focused on laboratory testing in support of commercial, industrial, retail, municipal, and transportation projects. This position is ideal for individuals looking to start or grow a career in construction materials testing, civil engineering, or geotechnical services.

Compensation: $18-20/hour. Earning potential can be higher for experienced technicians.
Location: Houston, TX
FLSA Exemption: Non-Exempt
Schedule: Full-time, 40 hours/week (schedule may vary based on workload)

What you'll be doing:

• Receive, prepare, and test geotechnical and construction materials such as soils, aggregates, concrete, and asphalt.
• Perform laboratory testing in accordance with ASTM, AASHTO, and TxDOT standards, including (but not limited to):
• Visual Classification of Soils
• Moisture Content
• Atterberg Limits
• Sieve Analysis
• Standard and Modified Proctor Compaction
• Swell Testing
• Compressive Strength (Concrete Cylinders)
• Aggregate Gradation and Properties
• Accurately record test data, calculations, and results and report findings to the Laboratory Manager.
• Assist with sample tracking, documentation, and report preparation.
• Maintain laboratory equipment, tools, and work areas in compliance with safety, quality, and accreditation requirements.
• Follow CMT safety policies, laboratory procedures, and quality control standards.

What you have:

• High school diploma or equivalent.
• Valid driver's license with acceptable driving record.
• Ability to lift and carry up to 50 lbs.
• Strong attention to detail and ability to follow standardized procedures.
• Strong communication skills (speaking, reading, and writing).
• Willingness to work in a laboratory environment and support team goals.
• Ability to work effectively with peers and supervisors.

What will make you stand out:

• 1+ year of experience in a construction materials testing laboratory.
• Familiarity with ASTM, AASHTO, and TxDOT testing methods.
• Coursework or degree in civil engineering, construction management, geology, or a related field.
• Interest in career advancement within construction materials testing or geotechnical services.

Preferred Certification(s) – Texas Relevant

• NICET Construction Materials Testing (Soils, Concrete, or Asphalt – Level I or II preferred)
• American Concrete Institute (ACI) – (Concrete Strength Testing, Aggregate, Aggregate Base – preferred but not required)

Certifications can be obtained after hire; CMT supports employee certification and training.

Equal Opportunity Employer

CMT Technical Services is an Equal Opportunity Employer. All qualified applicants will be considered for employment without regard to race, color, religion, sex (including pregnancy, gender identity, and sexual orientation), national origin, age, disability, genetic information, veteran status, or any other status protected by applicable federal, state, or local laws. We are committed to maintaining a professional workplace where individuals are treated with respect and fairness.