# Quality Control Lab Technician

**Company:** [United Concrete](null/companies/dxdQh1uAM6DwwPC33j3GL1.md)
**Location:** Wallingford, United States
**Workplace:** on site
**Employment type:** Full-time
**Department:** Plant 1

[Apply for this job](null/view/10521466-4c21-41b9-ad3e-badb78b18d29)

## 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