Night Shift Plant Laborer

Martin-Marietta-1798b2fd; Missouri; On-site; USD 42,000 - 65,000; Full time

Job summary

Martin Marietta is seeking a Night Shift Plant Operator for surface operations at the Randolph Mine in Randolph, Missouri. The role supports surface crushing operations and acts as back-up to Plant Operator I by controlling plant equipment in a fully automated rock crushing plant.

You will participate in safety programs, inspect equipment, monitor processes, and coordinate with team members to maintain production. Night shift expectations and outdoor work are likely.

Qualifications

• High school diploma or GED required.
• 1+ years of related experience preferred.
• Valid US driver’s license required.
• Heavy equipment operations or military experience preferred.
• MS Office and computer skills preferred.

Responsibilities

• Participate in safety programs and trainings.
• Operate skid steer to facilitate plant clean-up.
• Train and provide back-up for Plant Operator I.
• Inspect equipment for signs of wear.
• Monitor processes, materials and surroundings.
• Tend equipment such as conveyors to move materials.
• Perform basic maintenance on heavy mobile equipment.
• Operate haul truck to assist with plant operations.
• Work in a team environment.
• Keep work areas clean and PPE worn properly.
• Notify supervisors of repairs needed.
• Manage multiple tasks and prioritize production needs.

Skills

Minimal supervision

MSHA regulations knowledge

Effective communication

Machine maintenance knowledge

MS Office skills

Education

High school diploma or GED

Tools

Valid US driver’s license

Job description

JOB SUMMARYMartin Marietta is currently looking for a night shift Plant Operator for surface operations at the underground mine in Randolph, Missouri. This position is responsible for assisting with plant clean-up and providing support for surface crushing operations. This position will also serve as a back-up to the Plant Operator I by controlling plant equipment and operations in a full-automated/computer-operated rock crushing plant.Location:Martin Marietta’s Missouri market is anchored by the Randolph Mine, a major underground limestone operation located in Randolph, Missouri. The facility supplies crushed stone and other aggregate products to contractors, municipalities, and producers across the Kansas City metropolitan area. Strategically positioned with both truck and rail access, the Randolph Mine supports regional infrastructure projects, road construction, and commercial development, making it a cornerstone of Martin Marietta’s Missouri Valley District operations.Key Duties and Responsibilities:Participate in safety programs and trainings, promoting Martin Marietta’s Guardian Angel cultureOperate skid steer to facilitate plant clean-upTrain and provide back-up for Plant Operator IInspect equipment for signs of wearMonitoring processes, materials and surroundingsTend to equipment such as conveyors to move materials through production processesPerform basic maintenance on heavy mobile equipmentOperate haul truck to assist with plant operationsWork in a team environmentClean work areasProper wear of personal protective equipmentNotify supervisors of repairs neededManage multiple tasks and prioritize production needsQUALIFICATIONSRequired Education and Experience:High school diploma, GED or equivalent1+ years of related experienceValid US driver’s licenseHeavy equipment operations or military experience preferredMS Office and other computer skills preferredSkills:Ability to work with minimal supervisionKnowledge of MSHA regulationsEffective written and verbal communicationKnowledge of machines and tools including their design, use and maintenancePhysical AbilitiesAbility to work in an outdoor environment year-roundAbility to work in elevated areasGeneral physical activities include climbing stairs and ladders, lifting, pushing, pulling, stooping, reach with hands and arms, and handling materialADDITIONAL INFORMATIONDisclaimer:In addition to the primary responsibilities outlined, the successful candidate may be expected to take on other tasks and assignments as required, including but not limited to duties outside the typical scope of the role to support overall team operations and organizational needs. Flexibility and adaptability to evolving job demands are essential.