United Concrete

Quality Control Lab Technician

Inspection & TestConfirmed live in the last 24 hours

Full-timeWallingford, CT, USANo salary listedIn-person

About the Job

Requirements

Experience in concrete, materials testing, quality control, or laboratory work is preferred; motivated candidates with technical aptitude can be trained.
Working knowledge of concrete materials and testing, and the ability to follow ASTM, ACI, and DOT procedures.
Strong math and analytical skills, with attention to detail.
Ability to communicate, work independently, and work in a fast-paced plant.
Comfort working outdoors and in a manufacturing environment.
Proficiency in Word, Excel, and Outlook.

Responsibilities

Sample and test cement, aggregates, water, and admixtures for specification compliance.
Perform fresh concrete testing, including slump, air, temperature, and unit weight, according to ASTM, ACI, and DOT requirements.
Cast, cure, and compression-test cylinders and other specimens.
Assist with mix-design development, optimization, and troubleshooting.
Perform quality-control testing on precast and prestressed products.
Maintain accurate test records and quality-control documentation.
Review test data to identify trends or quality issues and report them to quality-control management.
Help investigate nonconformances and corrective actions.
Maintain and calibrate laboratory equipment and keep the laboratory clean and safe.
Participate in research and development of new materials, mix designs, and quality-control methods.

Desired Qualifications

ACI Field Testing Grade I and/or Strength Testing certification.
Mix-design experience.
Familiarity with New England DOT specifications.
Familiarity with ASTM C31, C39, C138, C143, C173/C231, and C1064.
Durability testing experience, including resistivity and permeability.
An associate's or bachelor's degree in civil engineering technology or a related field.

Quality Control Lab Technician

United Concrete · Wallingford, United States · Full-time · Posted 2026-09-08

Workplace: on_site

Department: Shop Floor

Description

Join our in-house concrete laboratory and QC team supporting precast and prestressed products for DOT, marine, port, and infrastructure projects across New England. This is more than a testing job—our lab does mix-design development, surface resistivity and permeability testing, and temperature-matched curing that most concrete labs never touch.

If you have a strong interest in concrete technology and want to grow, this role offers a defined path from Technician → Senior Technician → QC Specialist, with training and ACI certification support along the way.

Why Join Us

Clear career progression with hands-on training and paid ACI certifications
Advanced lab: mix design, durability testing, temperature-matched curing, applied R&D
High-profile DOT and marine projects
Stable, year-round work with a collaborative QC, production, and engineering team
[Benefits: health/dental/vision, 401(k) match, PTO, paid holidays]

What You'll Do

Sample and test raw materials (cement, aggregates, water, admixtures) for spec compliance
Perform fresh concrete testing—slump, air, temperature, unit weight—per ASTM, ACI, and DOT requirements
Cast, cure, and compression-test cylinders and other specimens
Assist with mix-design development, optimization, and troubleshooting
Perform QC testing on precast and prestressed products
Maintain accurate test records and QC documentation
Review test data to spot trends or quality issues and report to QC management
Help investigate nonconformances and corrective actions
Maintain and calibrate lab equipment; keep a clean, safe lab
Participate in R&D of new materials, mix designs, and QC methods

Career Path

QC Technician → materials and fresh concrete testing, strength testing, documentation Senior QC Technician → mix-design trials, durability testing, data analysis, mentoring QC Specialist → mix-design development, nonconformance investigations, spec review, R&D

Advancement is based on skill, certifications, and performance—not just time served.

Requirements

What You Bring

Experience in concrete, materials testing, QC, or lab work preferred—motivated candidates with technical aptitude will be trained
Working knowledge of concrete materials and testing; ability to follow ASTM/ACI/DOT procedures
Strong math, analytical, and attention-to-detail skills
Good communication and ability to work independently in a fast-paced plant
Comfortable working outdoors and in a manufacturing environment
Proficient in Word, Excel, and Outlook

Preferred: ACI Field Testing Grade I and/or Strength Testing certification; mix-design experience; New England DOT specifications; familiarity with ASTM C31, C39, C138, C143, C173/C231, C1064; durability testing (resistivity, permeability); associate's/bachelor's in civil engineering technology or related field.

Benefits

Competitive salary
Medical, dental insurance
401(k) with 10% company match
Paid time off and holidays

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About the Company

United Concrete

Company size: Not listed
Company stage: Not listed
Total funding: Not listed
Headquarters: Not listed
Founded: Not listed

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