Night Shift Plant Laborer

Martin Marietta Materials, Inc.; Missouri; On-site; USD 35,000 - 50,000; Full time

Benefits offered by this job

Medical

Prescription Drug

Vision

Paid Holidays and Vacation

401(k) with Company matching

Educational/Tuition Assistance Plan

Job summary

Martin Marietta Materials, Inc. is seeking a Night Shift Plant Operator to support surface operations at their Randolph, Missouri underground mine. This role involves assisting with plant clean-up, training Plant Operator I, and controlling equipment in a fully automated rock crushing plant.

The successful candidate will have a high school diploma or equivalent, 1+ years of experience, and a valid US driver's license. Benefits include medical coverage, a 401(k) plan, and educational assistance.

Qualifications

• Must have a valid US driver's license.
• 1+ years of experience in a similar role is required.
• High school diploma or GED is essential.

Responsibilities

• Assist with plant clean-up and support for surface crushing operations.
• Train and back-up Plant Operator I.
• Operate haul truck to assist with plant operations.
• Perform basic maintenance on heavy mobile equipment.
• Monitor processes, materials, and surroundings.

Skills

Ability to work with minimal supervision

Knowledge of MSHA regulations

Effective written and verbal communication

Knowledge of machines and tools

Education

High school diploma, GED, or equivalent

1+ years of related experience

Valid US driver's license

Tools

MS Office

Job description

Martin 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 culture
• Train and provide back‑up for Plant Operator I
• Inspect equipment for signs of wear
• Monitoring processes, materials and surroundings
• Tend to equipment such as conveyors to move materials through production processes
• Perform basic maintenance on heavy mobile equipment
• Operate haul truck to assist with plant operations
• Work in a team environment
• Clean work areas
• Proper wear of personal protective equipment
• Notify supervisors of repairs needed
• Manage multiple tasks and prioritize production needs

Required Education and Experience

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

Skills

• Ability to work with minimal supervision
• Knowledge of MSHA regulations
• Effective written and verbal communication
• Knowledge of machines and tools including their design, use and maintenance

Physical Abilities

• Ability to work in an outdoor environment year-round
• Ability to work in elevated areas
• General physical activities include climbing stairs and ladders, lifting, pushing, pulling, stooping, reach with hands and arms, and handling material

Additional Information

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.

Benefits

• Medical
• Prescription Drug
• Vision
• Dependent Care Reimbursement Account
• Wellness Programs
• Employee Assistance Plan
• Paid Holidays and Vacation
• 401(k) with Company matching
• Pension
• Salary Continuation – Short-Term Disability
• Long-Term Disability Options
• Employee Life Insurance
• Business Travel Accident Insurance
• Direct Deposit Payroll
• Educational/Tuition Assistance Plan
• Matching Gift Program
• New Auto Purchase Discount Plans

Equal Opportunity Employer

At Martin Marietta, we are proud to be an Equal Opportunity Employer. We are committed to providing an environment of mutual respect where equal employment opportunities are available to all qualified applicants and teammates. We celebrate diversity and commit that qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.