Construction Materials Laboratory Technician Level I​/II

This is a continuous filing exam. Next filing cut-offs are at 5:00 pm on: 8/27/26, 9/17/26 (final)

Level 1 - $8,329.38- $9,182.00/month

Level 2 - $8,741.75 - $9,637.86/month

Under supervision, samples and performs tests on a variety of construction materials (soils, asphalt, concrete, etc.) in the field or laboratory to ensure compliance with various requirements, plans, specifications, and contracts; and keeps written records and reports of activities.

• Methods and procedures used to collect and sample construction materials
• Construction materials field and laboratory testing methods and procedures
• Types and grades of commonly used construction materials
• Mathematical procedures related to the accurate performance and interpretation of a variety of calculations in the field or laboratory
• Methods, tools, and equipment used in construction projects
• Applicable Federal, State, and local regulations and ordinances

• Determine and conduct appropriate tests based on the type of construction material and project requirements
• Make accurate mathematical calculations
• Read blueprints, plans, and specifications
• Gather data, keep accurate records, and prepare reports and simple drawings
• Detect flaws in construction materials
• Follow verbal and written instructions
• Communicate effectively, both verbally and in writing
• Promote, establish, and maintain effective working relationships

Two years of full‑time, paid experience sampling, testing or inspecting construction materials such as soil, asphalt, and concrete.

Note:

Successful completion of college coursework from an accredited college in the fields of engineering, mathematics, chemistry, physics, construction technology or other related physical sciences may substitute for up to one year of the required experience on the basis of 30 semester (or 45 quarter) units is equivalent to one year of work experience.

Note:

If the word “experience” is referenced in the minimum qualifications, it means full‑time paid experience unless the minimum qualification states that volunteer experience is acceptable. Part‑time paid experience may be accumulated and pro‑rated to meet the total experience requirements.

Note:

If the minimum qualifications include an educational or certificate/license requirement, applicants must submit proof of requirements with the application. Failure to submit proof of requirements may result in disqualification from the examination. Unofficial transcripts are acceptable. For guidelines on submitting acceptable proof of educational requirements, please  or speak to someone in our office before the cut‑off date listed in this notice.

The County may conduct a background check on the candidate prior to appointment to a position within this class. The background check may include personal and professional reference checks, credit history checks, Social Security Number verification, professional license/registration verification, military service information and driving history. Information obtained in the course of this background check will be considered by the appointing authority in the selection process.

In obtaining such information, the County will comply with applicable consent and disclosure practices in the Fair Credit Reporting Act and the California Investigative Consumer Reporting Agencies Act.

A valid California Driver License, Class C or higher, may be required at the time of appointment. Failure to obtain or maintain the appropriate California Driver License may constitute cause for personnel action in accordance with Civil Service Rules or applicable bargaining agreement. Individuals who do not meet this requirement due to disability will be reviewed on a case‑by‑case basis.

Incumbents in this class will be required to obtain National Institute for Certification in Engineering Technologies (NICET) Level 2 asphalt, concrete, and/or soils certifications within two years of appointment to the class. Incumbents at Level I must maintain their NICET Level 2 asphalt, concrete, and/or soils certifications in order to remain at Level I.…