Demo

Geotechnical Laboratory Technician

Crawford & Associates, Inc.
Irvine, CA Full Time
POSTED ON 1/12/2026
AVAILABLE BEFORE 2/11/2026

WE ARE LOOKING FOR SENIOR GEOTECHNICAL LABORATORY TECHNICIAN

📍 Onsite | Full-Time

📍 Sacramento, CA – 4370 24th Street, Unit A

📧 Send resumes to: M.Herrera@crawford-inc.com

WHY JOIN CRAWFORD & ASSOCIATES, INC.

Crawford & Associates is a California-based geotechnical engineering and materials testing firm supporting critical public infrastructure projects throughout California and Washington. Since 2012, we’ve grown into a multi-office firm known for technical excellence, responsive service, and long-term career growth.

This role is ideal for an experienced lab professional who wants stability, leadership responsibility, and the opportunity to contribute to high-impact infrastructure work.

ROLE OVERVIEW

The Senior Geotechnical Laboratory Technician plays a key role in delivering accurate, high-quality laboratory data for geotechnical engineering projects. This position leads advanced soil and rock testing, supports laboratory quality systems, and mentors junior technicians while working closely with engineers and project managers.

KEY RESPONSIBILITIES

• Perform advanced geotechnical laboratory testing on soils and rock

• Conduct Atterberg Limits, Grain Size, Moisture-Density, Expansion Index, UCS, Direct Shear, and rock strength testing

• Review, verify, and validate test results for accuracy and compliance

• Maintain ASTM, AASHTO, and Caltrans testing standards

• Support lab accreditation, QA/QC, and equipment calibration

• Maintain detailed records, logs, and reports

• Assist with daily lab workflow and scheduling

• Mentor and support junior laboratory staff

• Maintain a safe, organized, and compliant laboratory environment

REQUIRED EXPERIENCE & SKILLS

5 years experience in a geotechnical or materials testing laboratory

• Strong working knowledge of ASTM / AASHTO / Caltrans standards

• Ability to independently perform advanced laboratory testing

ACI Aggregate Base / Level I (preferred)

NICET Level I (Soils/Aggregates) preferred

• Excel proficiency and basic lab software experience

• Ability to lift heavy samples and equipment

• Occasional light field sample collection as needed

PAY & BENEFITS

Up to $35/hour overtime (DOE)

• Full benefits package

• Paid Vacation & Sick Time

401(k) with employer match

• Health, dental, vision & chiropractor insurance

• Life insurance

• Long-term career growth & leadership opportunities

Salary.com Estimation for Geotechnical Laboratory Technician in Irvine, CA
$52,214 to $69,433
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