Lab Field Technician

Lab Field TechnicianKnoxvilleTennessee - TN

Thompson Engineering is seeking a highly motivated and experienced Construction & Geotechnical Materials Field and Laboratory Technician to support local construction and geotechnical testing services.

This role is responsible for using and maintaining laboratory and field test equipment, and performing testing of soils, aggregates, concrete, asphalt, and related materials. This position is responsible for the occasional observation of construction materials testing and inspection activities on active construction sites to assure compliance with project specifications, industry standards, and quality requirements. The Field and Laboratory Technician plays a critical role in maintaining Thompson''s quality standards, and supporting business objectives.

Key Responsibilities Laboratory Operations & Quality

Perform daily technician sampling and testing in the field and construction materials laboratory safely, accurately, and on schedule. Ensure activities comply with Thompson Engineering''s Quality Program, Quality Management System (QMS), project specifications, and applicable industry standards. Perform work in accordance with laboratory- and program-specific procedures that align with company quality and operational requirements.

Participate in proficiency testing programs necessary to comply with A2LA, AASHTO, USACE, ISO 17025, R18, and other applicable accreditation standards.

Notify supervisor of any identified project-related risks and potential failure points and apply Thompson''s risk management practices to protect the company and clients. Key Responsibilities

• Perform laboratory testing of construction materials (masonry, soils, concrete, etc.)
• Perform field testing of construction materials (masonry, soils, concrete, etc.)
• 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), if qualified
• Maintain detailed daily diaries documenting daily activities
• Prepare and submit daily reports and required documentation to the Team Leader/Project Manager in accordance with project specifications
• Ensure quality standards are met on 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 activities and reports accurately and in a timely manner
• Perform duties in a professional, ethical manner

Equipment, Facilities & Resources

• Use facilities, equipment, and resources with care; identify and request additional resources as needed.
• Ensure proper calibration, maintenance, and operation of testing equipment prior to use
• Calibrate laboratory and field equipment, as assigned
• Maintain laboratory organization, cleanliness, and a professional work environment.
• Drive a company vehicle in a safe 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
• Five years of construction materials testing experience
• ACI Level I Certification (or ability to obtain/renew) Field and Laboratory
• 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
• Experience with nuclear DOE-related projects a plus
• TDOT experience a plus

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.

431BRThompson Engineering60468No502821610.00.011/02/2026