Lab Supervisor

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Job
APAC Central Inc., is a CRH company providing crushed aggregate materials, sand, ready‑mix concrete, asphalt, and performing as a regional heavy highway/infrastructure construction firm serving Arkansas, Oklahoma, and southern Missouri.

You’ll have the autonomy to own your process, lead a capable team, and play a vital role in delivering safe, reliable infrastructure. You’ll also receive:

• Competitive salary $70,300–$86,000, depending on experience
• Opportunities for advancement and technical training
• A safety‑first culture and supportive leadership

As our Quality Control Supervisor, you’ll lead the daily operations of our Quality Control Lab and field‑testing efforts. You’ll manage a team of lab technicians and ensure that our materials meet all required specs for safety, performance, and compliance. Your work will directly influence construction quality across roads, bridges, and other key infrastructure projects.

• Supervising daily lab activities, including technician training and equipment/supply requisition
• Overseeing and conducting lab testing on asphalt, concrete, and aggregates
• Designing and submitting mix designs for asphalt, concrete, and aggregates
• Performing field testing including core sampling, density testing (nuclear gauge), and more
• Handling all material certifications for internal and external clients
• Acting as the main contact for DOTs, city/county agencies, and independent labs
• Advising supervisors on test results and alerting them to deficiencies
• Providing technical data and product information to sales and clients
• Maintaining accurate documentation of results, reports, and communication

• Bachelor’s degree or equivalent work experience (4+ years in Quality Control)
• Solid understanding of construction material testing standards (ASTM, AASHTO, etc.)
• Ability to lead a team and manage multiple priorities under tight deadlines
• Comfortably using lab equipment, nuclear gauges, and working in both lab and field settings
• Valid driver’s license and willingness to travel to various job sites

• Familiarity with DOT specifications and material certification processes
• Prior experience submitting mix designs or test results for government contracts

• Frequently required to climb, balance, and perform tasks involving physical agility.
• Regularly sit, climb, and use hand signals or equipment; occasionally stand, walk, crawl, kneel, bend, stoop, crouch, or reach above shoulder height.
• Lift and move objects weighing up to 25–50 lbs as needed.
• Work primarily outdoors, often in extreme weather and environmental conditions.
• Comfortable working in all weather conditions; exposed to jobsite hazards such as moving machinery, high places, airborne particles, and loud environments.
• Must have specific vision abilities, including close, distance, color, peripheral, and depth perception, to operate equipment safely.
• Reasonable accommodations provided as necessary to enable individuals with disabilities to perform essential functions.

• Highly competitive base pay
• Comprehensive medical, dental, and disability benefits programs
• Group retirement savings program
• Health and wellness programs
• An inclusive culture that values opportunity for growth, development, and internal promotion

APAC Central Inc., a CRH Company, is an affirmative action and equal opportunity employer.

EOE/Vet/Disability
CRH is 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, status as a protected veteran or any other characteristic protected under applicable federal, state, or local law.