Concrete QA Lab Technician — Quality & Process Improvement

Unilock; Harrison (OH); On-site; USD 48,000 - 60,000; Full time

Job summary

Unilock is seeking a Quality Lab Technician to ensure consistent product quality for concrete paving stones and retaining wall products. You will perform absorption and density tests, analyze materials, and maintain compliance with company standards.

The role collaborates with plant personnel to drive continuous improvement and uphold Unilock’s commitment to excellence. The position requires strong analytical and problem-solving skills, ability to use lab equipment, and adherence to safety and

Qualifications

• High school diploma or GED is required.
• Must be able to read and write in English.
• Ability to perform repetitive tasks and work with hands/arms at or above shoulder level.
• Visual acuity to distinguish colors and color blends accurately.
• Basic proficiency in using tablets and digital tools for data entry.
• Strong analytical, troubleshooting, and problem-solving skills.
• Physical capability to stand, stoop, reach, and lift up to 50 lbs.
• Willingness to learn—no prior QA experience required; training provided.
• Familiarity with ASTM C936, ASTM 1372, and ASTM 1262 testing is a plus.

Responsibilities

• Perform routine quality tests to verify product specifications and standards.
• Operate Lab equipment such as concrete compression equipment and lab ovens among other industrial lab equipment.
• Inspect raw materials, in process and finished goods for compliance standards.
• Document and escalate all products or processes non-conformance immediately to the Press Operator, Plant Supervisor, and Plant/QA Manager to ensure timely corrective action.
• Enter test results into ROO.AI software following each completed test.
• Partner with operators and supervisors to identify and implement process improvements.
• Actively participate in team discussions focused on enhancing product quality and operational efficiency.
• Apply a continuous improvement mindset to identify and support initiatives that optimize production processes.
• Conduct weekly 5S audits to maintain workplace organization and safety.
• Support and contribute to ongoing continuous improvement projects.
• Perform safety audits to ensure PPE, Safety Training, and Audit Standard compliance.
• Attend Monthly Safety meetings.
• Facilitate toolbox talks, recommend training topics to meet yearly safety goals.
• Perform additional duties and special assignments as directed by management.
• Ensure full compliance with Unilock’s safety, health, and environmental requirements during all QA activities.

Skills

Analytical thinking

Troubleshooting

Problem-solving

Reading & Writing in English

Manual dexterity

Data entry

Learning mindset

Education

High school diploma or GED

Tools

ROO.AI software

Lab equipment operation

Job description

Unilock is seeking a Quality Lab Technician to ensure consistent product quality for concrete paving stones and retaining wall products. You will perform absorption and density tests, analyze materials, and maintain compliance with company standards.

The role collaborates with plant personnel to drive continuous improvement and uphold Unilock’s commitment to excellence. The position requires strong analytical and problem-solving skills, ability to use lab equipment, and adherence to safety and