Mix Design Specialist

Mix Design & Quality Control

Develop, evaluate, and maintain asphalt mix designs in accordance with MnDOT specifications.

Perform laboratory testing including aggregate gradation, asphalt content analysis, volumetric properties, and performance tests.

Adjust mix designs and plant settings to optimize product quality, cost efficiency, and performance.

Maintain documentation and records of mix designs, test results, and compliance reports.

Plant Production Support

Monitor plant production processes to ensure adherence to approved mix designs.

Collaborate with plant operators to troubleshoot production issues and ensure consistent product quality.

Observe stockpile management and ensure materials meet required specifications.

Regulatory Compliance

Ensure all mix designs and production practices comply with MnDOT, ASTM, and AASHTO standards.

Coincide with MnDOT representatives and inspectors during plant audits and project approvals.

Continuous Improvement

Recommend improvements in materials, processes, and testing procedures.

Stay informed of industry trends, new technologies, and evolving MnDOT requirements.

Participate in quality improvement initiatives and internal audits.

Required Qualifications

• High School diploma or equivalent.
• Bachelor’s degree in civil engineering, Construction Management, Materials Science, or related field OR equivalent industry experience.
• Minimum of 3–5 years of experience in asphalt mix design, plant operations, or materials testing.
• Valid US drivers license.
• Must possess or be able to obtain the following MnDOT certifications: APTC – Aggregate Production Technician Certification, BPTC – Bituminous Plant Technician Certification, BMDC – Bituminous Mix Design Certification, BSIC – Bituminous Street Inspector Certification.

Technical Skills

• Strong understanding of asphalt materials, aggregate properties, and mix design methodologies (Superpave, Marshall, etc.).
• Knowledge of MnDOT specifications and QA/QC procedures.
• Proficiency with laboratory testing equipment and data analysis tools.
• Familiarity with plant control systems and production processes.

Preferred Qualifications

• Experience working directly with MnDOT projects or similar DOT agencies.
• Background in field inspection or construction quality assurance.

Key Competencies

• Analytical thinking and attention to detail.
• Problem-solving and root cause analysis.
• Strong communication and collaboration skills.
• Ability to manage multiple projects and deadlines.
• Commitment to safety and compliance.

Working Conditions

Combination of laboratory, office, and outdoor plant environment.

Exposure to high temperatures, dust, and heavy equipment.

Occasional travel to production and project sites as needed.

Physical Demands

• While performing the duties of this job, the employee is occasionally required to stand; walk; sit; use hands to handle, or feel objects, tools, or controls; reach with hands and arms; climb stairs; balance; stoop, kneel, crouch or crawl; and talk or hear.
• The employee must occasionally lift or move up to 50 pounds.

Base Salary Rate

$47.66