Batch Plant Operator

Martin Marietta; Litchfield Park (AZ); On-site; USD 42,000 - 65,000; Full time

Benefits offered by this job

Medical

Prescription Drug

Dental

Vision

Health Care Reimbursement Account

Dependent Care Reimbursement Account

Wellness Programs

Employee Assistance Plan

Paid Holidays and Vacation

401(k) with Company matching

Pension

Short-Term Disability

Long-Term Disability Options

Employee Life Insurance

Spouse & Dependent Life Insurance

Travel Insurance

Direct Deposit Payroll

Tuition Assistance

College Scholarship Program – for Dep.

Matching Gift Program

New Auto Purchase Discount Plans

Job summary

Martin Marietta's Plant Operator role focuses on the safe and efficient operation of a ready-mix batching facility, learning to proportion raw materials into trucks per mix designs while prioritizing safety, quality control, and environmental compliance.

The position coordinates with dispatch, maintains precise inventories, and performs routine inspections to maximize production uptime, all within OSHA, DOT and Guardian Angel safety standards.

Qualifications

• High school diploma, GED, or relevant experience.
• 1+ years of experience in a Ready‑Mix, Construction, or Heavy Industrial environment
• OSHA regulations and compliance awareness

Responsibilities

• Operate computer-controlled batching software to transfer materials from storage bins into mixer trucks.
• Read and interpret computer orders to ensure correct mix design and slump.
• Visually monitor loading areas and truck positioning for efficient delivery.
• Print and file delivery tickets; maintain daily records of production statistics and inventory.
• Perform daily pre- and post-shift inspections of silos, weigh hoppers, conveyors and plant structures.
• Clean hoppers, mixers, and plant grounds; use hand tools for cleaning.
• Diagnose process interruptions and assist maintenance with minor repairs.
• Maintain OSHA and DOT compliance and Guardian Angel safety culture.
• Demonstrate Lockout/Tagout procedures during maintenance.
• Monitor dust collectors and water systems to stay within permit guidelines.
• Monitor stockpiles and silo levels; assist ordering to prevent delays.
• Communicate with Dispatch to balance driver hours and provide product info.
• Operate mobile equipment to manage stockpiles.

Skills

Industry knowledge

Technical aptitude

Mechanical aptitude

OSHA regulations and compliance

Effective communication

Detail oriented

Time management

Education

High school diploma, GED, or relevant experience

Job description

Job Summary

The Plant Operator is responsible for the safe and efficient operation of a ready-mix concrete batching facility. Under the direction of plant leadership, the Operator will learn to utilize computer-controlled systems to proportion raw materials into ready-mix trucks according to specific mix designs. This role is a blend of technical system monitoring and hands‑on physical labor, requiring a high commitment to safety, quality control, and environmental compliance.

Description

Beyond technical batching, this role serves as a central hub for plant activities—coordinating with dispatch for delivery schedules, maintaining precise material inventories, and performing routine inspections to ensure maximum production uptime. The Operator is expected to maintain an uncompromising focus on safety, environmental compliance, and product quality while fostering a professional relationship with drivers and customers.

Key Duties And Responsibilities

• Operate computer-controlled batching software to transfer materials from storage bins through weigh hoppers and into mixer trucks.
• Read and interpret computer-delivered orders to ensure the correct mix design is selected and the appropriate slump is achieved.
• Visually monitor loading areas and truck positioning to ensure efficient and mess‑free product delivery.
• Print, record, and file delivery tickets; maintain accurate daily records of production statistics, fuel usage, and raw material inventory.
• Perform daily pre‑shift and post‑shift inspections of silos, weigh hoppers, conveyors, and plant structures to ensure operational readiness.
• Clean hoppers, mixers, and plant grounds to prevent material buildup; utilize hand tools for shoveling, sweeping, and washing equipment.
• Diagnose process interruptions and assist maintenance teams with minor repairs, such as replacing air valves or clearing stuck gates.
• Maintain strict compliance with OSHA and DOT regulations, as well as Martin Marietta’s internal "Guardian Angel" safety culture.
• Demonstrate proficiency in Lockout/Tagout (LOTO) procedures during maintenance or clearing of equipment.
• Monitor dust collectors and water systems to ensure the plant operates within environmental permit guidelines.
• Monitor stockpiles and silo levels; assist management in ordering raw materials to prevent production delays.
• Communicate effectively with Dispatch to balance driver hours and ensure on‑time delivery; provide customers with accurate product information when necessary.
• Safely operate mobile equipment, such as a front‑end loader or skid steer, to maintain stockpiles or manage returned concrete (making "eco-blocks").

Qualifications

Education

• High school diploma, GED, or relevant experience

Work Experience

• 1+ years of experience in a Ready‑Mix, Construction, or Heavy Industrial environment

Knowledge, Skills, And Abilities

• Industry knowledge
• Technical aptitude
• Mechanical aptitude
• OSHA regulations and compliance
• Effective communicator (written and spoken)
• Detail oriented
• Time management

Additional Details

Physical Requirements

Must be able to lift and carry up to 50 lbs. for plant maintenance and equipment servicing.

Required to bend, stoop, climb, and reach. You must be able to maintain three points of contact when climbing on/off machinery or on ladders.

Strong hand-eye-foot coordination is essential for operating hand/foot controls. You must have good depth perception with or without seeing aid for distances up to 150 feet.

Working Conditions

All duties require outside assignments and require periods of work in all weather conditions, cold, wet, dry and dusty. Must be able to work in areas where noise levels are up to 85 dbs.

Disclaimers

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.

A member of the S&P 500 Index, Martin Marietta is an American-based company and a leading supplier of heavy building materials – including aggregates, cement, ready‑mixed concrete and asphalt. Through a network of operations spanning 28 states, Canada and the Bahamas, dedicated Martin Marietta teams supply the foundational resources upon which our communities thrive. Martin Marietta's Magnesia Specialties business produces high‑purity magnesia and dolomitic lime products used worldwide in environmental, industrial, agricultural and specialty applications.

At Martin Marietta, we strive to work with the best and the brightest – those who have the potential to become our company's future leaders. Each of our roughly 9,500 people shares a common purpose regardless of their professional role or work environment. Together, we utilize our diverse skills and experiences to drive our company and its extraordinary culture forward. Our aim is to build on our foundation of success and help values‑driven and hardworking people realize their full potential. When you decide to invest your career in Martin Marietta, you'll know what it's like to be respected, challenged and rewarded.

In return, we offer a highly competitive benefits package, including:

• Medical
• Prescription Drug
• Dental
• Vision
• Health Care Reimbursement Account
• 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
• Spouse & Dependent Life Insurance
• Business Travel Accident Insurance
• Direct Deposit Payroll
• Educational/Tuition Assistance Plan
• College Scholarship Program – for dependent children
• Matching Gift Program
• New Auto Purchase Discount Plans

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.