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Now hiring · $25–$35 / hour

Materials Laboratory Technician

Laboratory technicians turn field samples into the numbers projects run on: Proctor curves, sieve analyses, Atterberg limits, moisture contents, and compressive strength breaks. You will work inside a documented AASHTO R18 quality system with calibrated equipment and real accountability for every result that leaves the lab.

What you'll do

  • 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

What we're looking for

  • 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

What a week in this job looks like

Field samples arrive in waves: bags of borrow for Proctors, buckets of base for gradations, jars for Atterberg limits, cylinders for the break schedule. Your week is the disciplined conversion of that material into numbers projects run on. Ovens loaded and logged, sieve stacks shaken to constant result, limits rolled to an eighth-inch thread, cylinders capped square and broken on schedule with the fracture photographed.

It is precision work with a rhythm to it. People who like doing things exactly right, every time, with the radio on, tend to love this room.

Break days have their own cadence: cylinders pulled from the tank on their exact ages, ends checked, machine loaded at the standard rate, results in the system before lunch so a contractor somewhere can strip forms. On heavy weeks you will break dozens, and every one of them is a promise the field made that the laboratory keeps.

Certifications, training, and where this leads

We train you method by method inside a laboratory that answers to AASHTO re:source and CCRL assessors, which means your training is not tribal knowledge, it is a documented competency record with your name on it. ACI laboratory certifications and NICET construction materials testing levels follow as you build scope, on the company's dime.

Laboratory technicians who master the soils bench and the concrete bench become the people who train others, run proficiency programs, and step into laboratory supervision. It is also the strongest technical foundation in the industry for anyone who later wants field, engineering, or management tracks.

Pay, schedule, and travel

Pay runs $25 to $35 per hour with overtime during heavy testing seasons. The laboratory runs on a steadier clock than the field, mostly daytime hours with predictable surges when big earthwork programs or break schedules stack up.

This is a facility-based role at the laboratory serving your region's work, with occasional field sampling support when the schedule calls for extra hands.

Safety, quality, and the standards we work under

The laboratory operates under a written quality management system built to AASHTO R18: calibrated equipment on documented schedules, technician competency records, proficiency samples, and internal audits that find problems before an assessor does. You will be trained on chemical and equipment safety for every method you touch.

Accuracy here is not a slogan. A wrong Proctor curve fails good fill or passes bad fill across an entire project, and the system exists so that never happens quietly.

How hiring works, and our commitment

Apply with whatever shows us how you work: lab experience, QC experience, or any history of careful, repetitive precision done right. Expect a call within days, a walk-through of the bench work, and a clear offer. The role requires the ability to lift sample containers, stand for extended bench work, and complete pre-employment screening consistent with laboratory and jobsite requirements.

We are an equal opportunity employer and consider every applicant without regard to race, color, religion, national origin, age, sex, sexual orientation, gender identity, disability, or veteran status.

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FAQ

Materials Laboratory Technician — questions applicants ask

What does a Materials Laboratory Technician earn?

The listed range is $25–$35 / hour, set by certifications held, years of documented field or laboratory experience, and the hub's market. Certified candidates enter above the bottom of the range.

What certifications matter most for a Materials Laboratory Technician?

ACI Concrete Field Testing Technician Grade I is the baseline for anyone touching fresh concrete; NICET Construction Materials Testing (Soils, Concrete, Asphalt) levels and ICC special inspector certifications raise both scope and pay. Certifications earned on the job are paid for by the company and belong to you.

Which ASTM tests does a Materials Laboratory Technician run?

Compressive strength (ASTM C39), Proctor moisture-density curves (ASTM D698 and D1557), sieve analysis and gradation (ASTM C136, C117, D6913), Atterberg limits (ASTM D4318), moisture content (ASTM D2216), specific gravity (ASTM C127, C128, D854), and soil classification (ASTM D2487) — logged against the quality system's calibration and verification records.

How do I apply?

Use the form on any city listing for this role: name, phone, email, years of experience, certifications, and a resume file or link. A hiring manager responds within a few business days. If you would rather talk first, call (346) 420-5425.

Where is this role based?

Wherever the project is. Choose the city page nearest you; Houston-area roles dispatch from Sugar Land, and roles in other metros are staffed through the regional hub that covers them.

Talk to us

Questions about a project? Send a note.

Nothing here is required — leave a phone number or an email and we'll get back to you. For a written scope, the proposal request form takes plans and specs.

Or call (346) 420-5425 · info@constructionmaterialtesting.com