Construction Materials Testing Field Technician (CMT)

Thompson Engineering; San Antonio (TX); On-site; USD 36,000 - 60,000; Full time

Job summary

Thompson Engineering is seeking qualified Construction Materials Testing (CMT) Technicians for multiple locations. The role involves daily oversight of testing and inspection activities on active construction sites to ensure compliance with project specs, standards, and quality requirements.

Ideal candidates will travel across multi-states to various job sites as needed and maintain detailed field diaries, reporting to the Team Leader.

Qualifications

• High school diploma or equivalent.
• Minimum of six months of construction materials testing experience.
• ACI Level I Certification (or ability to obtain).
• Nuclear Gauge Certification.
• Valid driver's license.
• Ability to read and write in English.
• Willingness to travel to various job sites as required.

Responsibilities

• Perform field testing of construction materials using a 40-pound nuclear density gauge.
• Obtain concrete samples from ready-mix trucks and prepare concrete test cylinders.
• Conduct concrete testing and transport samples to the laboratory for analysis.
• Collect, document, and deliver soil samples from job sites to the laboratory.
• Observe construction activities and accurately record performance data.
• Maintain daily field diaries and submit reports to the Team Leader.

Skills

Field testing

Communication

Travel readiness

Education

High School Diploma

Tools

Nuclear density gauge

Job description

Construction Materials Testing (CMT) Technician

Thompson Engineering is seeking qualified Construction Materials Testing (CMT) Technicians for multiple locations. This position is responsible for the daily oversight of construction materials testing and inspection activities on active construction sites to ensure compliance with project specifications, industry standards, and quality requirements. Ideal candidates will demonstrate flexibility and a willingness to travel across multi-states to various job sites as needed.

Key Responsibilities

• Perform field testing of construction materials using a 40-pound nuclear density gauge
• Obtain concrete samples from ready-mix trucks and prepare concrete test cylinders
• Conduct concrete testing and transport samples to the laboratory for further analysis
• Collect, document, and deliver soil samples from job sites to the laboratory
• Observe construction activities and accurately record performance data
• Perform visual inspections of reinforcing steel (rebar)
• Maintain detailed daily field diaries documenting project activities
• Prepare and submit daily reports and required documentation to the Team Leader in accordance with project specifications
• Ensure quality and quantity standards are met on all assigned work
• Proactively review project documents and testing procedures to understand technical requirements
• Communicate professionally and ethically with clients, contractors, and team members
• Maintain company-owned equipment in safe, proper working condition
• Report any required corrective actions to the Team Leader to ensure work quality meets company standards
• Follow all written procedures, company policies, and safety requirements
• Complete field activities and reports accurately and in a timely manner
• Perform all duties in a professional, ethical manner

Additional Responsibilities

• Establish personal goals for continuous improvement and job performance
• Maintain reliable, punctual, and regular attendance
• Attend and actively participate in safety meetings and training programs
• Perform other duties as assigned

Qualifications

Minimum Requirements

• High school diploma or equivalent
• Minimum of six (6) months of construction materials testing experience
• ACI Level I Certification (or ability to obtain)
• Nuclear Gauge Certification
• Ability to communicate effectively both verbally and in writing
• Valid driver's license
• Ability to read and write in English
• Willingness to travel to various job sites as required
• Level and compensation commensurate with experience

Physical Requirements

• Ability to work flexible schedules and overtime as required by operational needs
• Ability to lift and carry a minimum of 50 pounds
• Ability to safely operate a company vehicle
• Ability to push or pull up to 400 pounds using a wheelbarrow
• Ability to walk, stoop, bend, climb stairs and ladders
• Ability to work on uneven terrain including concrete, gravel, dirt, and grass
• Ability to work at elevated heights and in open structures
• Ability to work outdoors for extended periods in varying weather conditions
• Ability to wear required personal protective equipment (PPE)

About Thompson Engineering

Founded in 1953, Thompson Engineering provides quality assurance and professional services for construction projects supporting industrial, infrastructure, and community development. Our services include drilling, materials testing, construction inspection, chemistry laboratory services, engineering design, environmental assessments, surveying, geotechnical studies, and construction management. Today, Thompson Engineering is recognized for leadership on projects that define skylines, coastlines, and transportation networks across the Southeast. From project planning and design through construction and completion, we deliver innovative solutions to complex infrastructure and building challenges for industrial, commercial, transportation, federal, and municipal clients.

Equal Employment Opportunity Employer

We are an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, protected veteran status, or any other characteristic protected by applicable federal, state, or local law.