CalPortland · 2 weeks ago
Quality Control Lab Technician
San Diego, CA
Full-time
Onsite
New Grad, Entry LevelCalPortland is a company dedicated to providing comprehensive benefits to its employees. The Quality Control Lab Technician will perform quality control testing and reporting duties in the concrete and concrete aggregates testing laboratory.
Building MaterialConstructionMining
Responsibilities
Perform all aspects of stripping, curing, capping, and compression testing in the concrete and concrete aggregates testing lab
Report concrete cylinder strength test results according to ACI standards
Process aggregate field test samples and reduce to the appropriate testing size
Concrete testing to include temperature, slump, density, air content, cylinders, etc
Perform gradation tests on rock and sand samples along with additional tests such as durability, moisture, cleanliness value, #200 wash, sand equivalency, specific gravities, and absorptions
Enter test results daily into a computer database and distribute reports to appropriate individuals
Gather cement, fly ash, and aggregate materials at production plants in preparation for concrete trial batch tests
Accurately weigh up each material as listed in the trial batch sheets and set up equipment for trial testing
Conduct scheduled calibrations on test equipment per the calibration schedule
Always maintain work area and office equipment in a safe and clean condition
Troubleshoot job problems and handle job complaints (out-of-spec aggregates, low breaks, Schmidt hammer, cracking, coring)
Analyze aggregate and strength reports and identify trends
Work directly with suppliers, vendors, and internal customers, as necessary
Qualification
Required
High school diploma/GED
DOT Soils and Aggregate Certification
ACI Strength Testing Certification and ACI Aggregate Testing Technician Level 1
Obtain and maintain the following: ACI Concrete Strength Testing (within six (6) months in position)
DOT Soil and Aggregate and/or ACI Aggregate Testing Technician Level 1 (within 1 year in position)
Job requires the following motions: climbing, bending, squatting, lifting, sitting, stretching, vibration, twisting, pushing/pulling of controls, and riding on rough terrain, use of hand tools such as wrenches and screwdrivers, driving/walking on uneven ground, and climbing stairs
Frequent lifting up to 75 pounds, occasional lifting of 100 pounds
May be exposed to extremes of hot or cold weather and be able to work in wet environments
Must be able to work flexible hours with varying start and stop times
Overtime work will be required as needed by the company
Must meet OSHA 10 guidelines and be able to follow all CalPortland Safety Policies
ANSI-approved PPE will be provided and must be used when required
Must be able to speak, read, and write in English
Able to work cooperatively with others
Must have a valid driver's license and be insurable
Technician subject to random drug and alcohol screens as required by the company
May be required to perform Field Technician duties based on business need
Preferred
Intermediate skills in Microsoft Office Suite and SAP software
Benefits
Medical, Dental, Vision
Company-paid life/AD&D insurance
Company-paid short-term disability
Paid sick/vacation/holiday
401k/Company Funded Pension Program (program is dependent upon location and job type)
Employee Assistance Program (EAP)
Additional voluntary benefits
Company
CalPortland
CalPortland specializes in the sale and purchase of a wide range of building materials and offers other construction services.
Founded in 1891
1001-5000 employees
H1B Sponsorship
CalPortland has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (2)
2022 (3)
2021 (3)
2020 (2)
Funding
Current Stage
Late StageTotal Funding
$4MKey Investors
US Department of Energy
2024-01-25Grant· $4M
Leadership Team
Allen Hamblen
President and Chief Executive Officer
William Mullen
Chief Operating Officer
Recent News
The Business Journal
2026-01-07
2026-01-03
The Business Journal
2025-11-01
Company data provided by crunchbase