OPERATIONS SUPERVISOR

Knife River Corporation; Kahului (HI); On-site; USD 90,000 - 120,000; Full time

Job summary

Knife River Corporation is seeking an experienced supervisor to lead Ready-Mix and Aggregate Operations in Hawaii. You will oversee production, dispatch, and transportation, coordinating maintenance, scheduling, and labor allocation to maximize safety, efficiency, and customer satisfaction.

The role requires strong leadership, the ability to analyze performance, and collaboration with Quality Control, Sales, and Maintenance to achieve financial objectives.

Qualifications

• Must have strong leadership, communication, and coaching abilities.
• Knowledge of construction materials operations and equipment utilization.
• Ability to analyze operational, safety, quality, and financial performance and act on findings.
• Ability to prioritize labor, equipment, materials, and resources to meet objectives.

Responsibilities

• Supervise ready-mix production, dispatch, transport, fleet use, delivery performance, and customer service.
• Coordinate production schedules, plant maintenance, equipment availability, repair priorities, and housekeeping to maximize productivity.
• Collaborate with Quality Control, Sales, and Maintenance to meet safety, quality, and financial goals.
• Monitor safety performance, delivery efficiency, fleet use, labor productivity, and costs; improve KPIs.
• Ensure staff are trained, qualified, and operating safely under union agreements and practices.
• Maintain compliance with OSHA, DOT, FMCSA, EPA, state and company requirements.
• Supervise Portable Plant, Finish Plant, and Waikapu Quarry operations and related activities.
• Coordinate production schedules and equipment utilization across aggregates to maximize efficiency and quality.
• Maintain safe operations and ensure proper training for employees performing bargaining unit work.
• Monitor inventory, production outcomes, and quality standards to meet objectives.
• Lead continuous improvement initiatives and respond to emergencies and interruptions.

Skills

Leadership

Communication

Team-building

Safety compliance

Operations management

Resource management

Analytical thinking

Education

Associates degree or trade certification

Job description

Minimum Requirements

• High School Diploma or GED required.
• Minimum two (2) years of leadership or supervisory experience.
• Valid Hawaii Driver's License (Class 3 or higher) with acceptable driving record.
• Basic computer proficiency, including Microsoft Office applications.
• Ability to obtain required operational certifications and qualifications.
• Ability to pass drug screening, background check, driver abstract review, and maintain TWIC credentials.
• Must successfully complete required physical capacity testing.

Preferred Requirements

• Associate degree, trade certification, military leadership training, or equivalent experience.
• Experience in aggregate, ready-mix, construction materials, transportation, manufacturing, or industrial operations.
• Experience in a union environment.
• Mechanical, welding, fabrication, equipment operation, or maintenance experience.
• NRMCA, MSHA, OSHA, DOT, environmental, Lean Six Sigma, or leadership certifications.

Duties And Responsibilities

Ready-Mix Concrete Department:

• Supervises ready-mix production, dispatch coordination, transportation operations, fleet utilization, delivery performance, and customer service activities to ensure customers receive quality products safely, efficiently, and on schedule.
• Coordinates production schedules, plant maintenance, equipment availability, repair priorities, housekeeping activities, and operational resources to maximize productivity, service performance, and profitability.
• Works closely with Quality Control, Sales, and Maintenance personnel to achieve safety, quality, customer service, and financial objectives.
• Monitors key performance indicators including safety performance, delivery efficiency, fleet utilization, labor productivity, equipment availability, operational costs, and customer satisfaction.
• Ensures employees are properly trained, qualified, and operating safely while performing Dispatcher and Batch Plant Operator duties in accordance with union agreements and established past practices.
• Maintains compliance with all applicable OSHA, DOT, FMCSA, EPA, State, and Company safety, environmental, quality, and operational requirements.

Aggregate Operations Department (Portable Plant, Finish Plant, and Waikapu Quarry):

• Supervises the daily operation of the Portable Plant, Finish Plant, and Waikapu Quarry, including quarry development, harvesting, blasting, crushing, screening, processing, inventory management, and aggregate production activities.
• Coordinates production schedules, equipment utilization, maintenance priorities, plant relocations, repair activities, and operational resources to maximize production efficiency, product quality, equipment availability, and overall departmental performance.
• Monitors key performance indicators, inventory levels, production results, and quality standards to ensure operational objectives are achieved.
• Ensures employees are properly trained, qualified, and operating safely while performing bargaining unit work in accordance with union agreements and established past practices.
• Maintains compliance with all applicable MSHA, EPA, State, and Company safety, environmental, and operational requirements.

Overall Responsibilities

• Promote Company Purpose, Mission, Vision, Values, and TRAC principles.
• Lead employees to achieve safety, quality, production, customer service, and financial goals.
• Monitors productivity, equipment utilization, labor efficiency, and department KPIs.
• Coordinate maintenance activities, equipment repairs, contractor services, and operational resources.
• Conducts workplace inspections to identify hazards and maintain compliance.
• Investigates incidents and operational issues, implementing corrective actions as necessary.
• Lead, coach, and develop employees
• Administer bargaining unit provisions, address grievances, and support labor-management initiatives.
• Build positive relationships with internal and external stakeholders
• Execute continuous improvement and Lean Six Sigma initiatives.
• Respond to emergencies, weather events, production interruptions, and operational challenges.
• Maintain positive customer relations and support efficient, profitable operations.

Knowledge, Skills, And Abilities

• Strong leadership, communication, coaching, and team-building abilities.
• Knowledge of construction materials operations, equipment utilization, and resource management.
• Ability to analyze operational, safety, quality, and financial performance and implement corrective action.
• Ability to prioritize labor, equipment, materials, and operational resources to meet business objectives.
• Ability to maintain effective relationships with employees, customers, and business partners.
• Ability to conduct investigations, root-cause analysis, and corrective action planning.
• Proficiency with company computer systems and Microsoft Office applications.
• Ability to obtain and maintain required operational, safety, environmental, and leadership certifications.
• Ability to successfully complete Company Leadership Development and Continuous Improvement programs.
• Ability to read, understand, and apply operational procedures, manuals, regulations, and safety requirements.
• Ready-Mix Operations - Obtain and maintain NRMCA Plant Manager Certification, Qualify as Dispatcher and Batch Plant Operator, Complete NRMCA safety and dispatch training requirements.
• Aggregate Operations - Obtain and maintain Crusher Operator II and Loader Operator qualifications.