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Construction Materials Testing Laboratory Technician

Kleinfelder
United Statesfull_timeVerifiedPosted 16 Jan 2026

About the role

Job Description

 

Kleinfelder's Ontario, CA office is seeking a Laboratory Construction Materials Testing Technician to join our team.  

 

Take Your Construction Career to the Next Level! Are you ready to be challenged, make a difference, and experience professional growth in your career? Kleinfelder's Construction Materials Engineering and Testing (CoMET) team is looking for you! From construction observation/inspection services to laboratory testing and materials and forensic engineering, our Construction Materials Engineering and Testing market helps to develop and maintain America's infrastructure and supply chain and is a recognized industry leader with more than 25 accredited laboratories.  

 

Kleinfelder's Ontario, California office is seeking a Laboratory Technician to join our Southern California team. We provide construction inspection and material testing services to a broad range of local and national clients. We are looking for individuals who are interested in joining a dynamic team and building their career in the field of construction inspection and materials testing.

 

Your responsibilities may include but are not limited to:

  • Reading and understanding applicable testing methods
  • Performing applicable testing on soils, aggregate, concrete, asphalt and other construction materials according to appropriate methods
  • Performing strength testing procedures
  • Preparing materials for laboratory testing
  • Reporting verification of conformance to construction plans and testing methods
  • Communicating effectively with clients, field technicians, laboratory supervisors, and other design professionals
  • Maintenance of Kleinfelder's local lab accreditations

Requirements and Qualifications:

  • Minimum 0-2 years of laboratory experience in CoMET or equivalent
  • Valid driver's license with a clean driving record and ability to pass drug test
  • Ability to work independently and as a team member, maintain composure, and work effectively in a high-pressure environment with changing priorities
  • Excellent interpersonal, verbal, and written communication skills
  • Ability to use a company provided laptop or iPad and a working knowledge of MS Office programs (e.g. Word, Excel, Outlook, etc.)
  • Authorization to work in the United States
  • Bend and lift up-to 50 pounds (22.68 kg) repetitively and over 50 pounds (22.68 kg) using handling equipment (hand truck, etc.)
  • Ability to operate heavy equipment as necessary

Preferred Certifications (or ability to obtain) include:

  • American Concrete Institute (ACI)
  • California Department of Transportation (Caltrans)
  • National Institute for Certification in Engineering Technologies (NICET)

 

This is a career opportunity to become a member of a highly successful, fast-paced team with a steady and growing backlog of large projects.

 

Education: High school diploma or equivalent required.

 

Move Forward with Kleinfelder

Kleinfelder has been connecting great people to the best work since 1961. We are engineers, scientists, and construction professionals providing solutions that improve our clients' transportation, water, energy, and other private infrastructure. As a responsive, cross-disciplinary team of bright, curious, and innovative problem-solvers, we are dedicated to doing the right thing, every day, on every project from over 85 offices in the US, Canada, and Australia. Connecting great people to the best work is our purpose - together, we deliver.

 

Progress with an Employer that Values You

Kleinfelder is an inclusive organization free from discrimination. We are a stronger organization when we are a diverse workforce and believe that through diversity, equity, and inclusion comes creativity, innovation, and unity. We are proud to offer the following:

Benefits: Kleinfelder offers an excellent compensation and benefits package, including: medical, dental, vision, life insurance, 401(k) plan, and paid holidays. The expected compensation range for the position is displayed in accordance with the California Pay Scale Disclosure Law. Final agreed upon compensation is based upon individual qualifications and experience. Compensation range: $15.28-$25.52

 

Career Development: We are committed to investing in the professional development of our staff, offering each employee every opportunity to grow, develop, and take control of their career p

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Kleinfelder

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