Construction Materials Technician

Job Description

Job Description

Job Title: Construction Materials Technician Job Description

The construction materials technician plays a key role in an engineering consulting environment by performing field operations and ensuring that construction materials used on site meet required quality standards. This position focuses on testing and inspecting concrete, asphalt, soil, and other construction materials to support safe, durable, and compliant structures.

• Perform field and laboratory testing of construction materials, including concrete, asphalt, and soil, in accordance with applicable standards and procedures.
• Conduct compaction tests to verify that soil and other base materials meet specified density and moisture requirements.
• Pull and prepare concrete cylinders for strength testing, ensuring proper sampling, labeling, curing, and documentation.
• Perform concrete slump tests to evaluate workability and consistency of fresh concrete on site.
• Break and test concrete cylinders to determine compressive strength, recording and reporting results accurately.
• Inspect concrete placement and related activities to confirm compliance with project specifications and quality requirements.
• Operate and maintain testing equipment, including nuclear gauges and other field instruments, in a safe and compliant manner.
• Document test results, observations, and field conditions clearly and accurately, and communicate findings to project teams.
• Support quality assurance and quality control programs by identifying nonconforming materials and assisting with corrective actions.
• Follow established safety procedures and regulatory guidelines while working on active construction sites and in testing environments.

• Hands-on experience with concrete testing, including sampling, slump testing, and compressive strength testing using cylinders.
• Knowledge of construction materials testing practices for concrete, asphalt, and soil.
• Experience performing compaction tests and interpreting results for field density and moisture content.
• Familiarity with concrete inspection procedures and field quality control activities.
• Ability to operate and properly use a nuclear gauge for soil and materials testing.
• Understanding of quality assurance and quality control principles in construction materials testing.
• Attention to detail and accuracy when recording test data and preparing reports.
• Ability to work effectively on active construction sites and follow safety protocols.
• Strong organizational skills to manage multiple tests, samples, and documentation in a timely manner.

• Experience working in an engineering consulting or construction materials testing environment.
• Exposure to American Concrete Institute (ACI) standards and best practices for concrete testing and inspection.
• Familiarity with NICET-related practices in construction materials testing or inspection.
• Background in asphalt testing and inspection in addition to concrete and soil testing.
• Interest in pursuing relevant certifications in construction materials testing and inspection.

This role primarily involves working outdoors on active construction sites, where the technician conducts field testing and inspection of materials under varying weather and site conditions. The position requires regular use of testing equipment such as nuclear gauges, concrete testing tools, and other field instruments. The work environment is hands-on and field-focused, with frequent travel between project locations and testing areas, and may involve standing, walking, and lifting equipment throughout the day.

This is a Contract to Hire position based out of Saint Charles, MO.

The pay range for this position is $20.00 - $28.00/hr.

Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following: • Medical, dental & vision • Critical Illness, Accident, and Hospital • 401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available • Life Insurance (Voluntary Life & AD&D for the employee and dependents) • Short and long-term disability • Health Spending Account (HSA) • Transportation benefits • Employee Assistance Program • Time Off/Leave (PTO, Vacation or Sick Leave)

This is a fully onsite position in Saint Charles,MO.

This position is anticipated to close on Aug 7, 2026.

About Actalent

Actalent is a global leader in engineering and sciences services and talent solutions. We help visionary companies advance their engineering and science initiatives through access to specialized experts who drive scale, innovation and speed to market. With a network of almost 20,000 consultants and 5,000 clients across the U.S., Canada, Asia and Europe, Actalent serves many of the Fortune 500. We are proud to be an Engineering News-Record (ENR) Top 500 Design Firm for our engineering design services and a ClearlyRated Best of Staffing® winner for both client and talent service.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

If you would like to request a reasonable accommodation, such as the modification or adjustment of the job application process or interviewing process due to a disability, please email View email address on ziprecruiter.com for other accommodation options.

San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.