Quality Control Lab Technician

United Concrete • Wallingford, CT

2d • Onsite

About The Position

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. This role offers stable, year-round work with a collaborative QC, production, and engineering team.

Requirements

• 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

Nice To Haves

• 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

Responsibilities

• 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

Benefits

• Health/dental/vision
• 401(k) match
• PTO
• Paid holidays
• Hands-on training
• Paid ACI certifications

What This Job Offers

• Job Type: Full-time
• Career Level: Entry Level
• Education Level: Associate degree