Field Mechanic

Martin Marietta Materials; Denver (CO); On-site; USD 40,000 - 57,000; Full time

Benefits offered by this job

Medical, dental and vision

Overtime pay

401(k) with company match

Job summary

Martin Marietta is seeking a Field Mechanic to perform high‑level maintenance, diagnostic troubleshooting, and repair of asphalt plant equipment, mobile heavy machinery, and on‑road assets. The job is field‑based, traveling to plant sites to maximize uptime and efficiency, all within the company’s Safety First culture.

You will diagnose and repair conveyors, shakers, pumps, engines, transmissions and hydraulic/electrical systems, using CAT ET, scanners, MIG/TIG/Stick welding, and other tools.

Qualifications

• 1+ years of heavy equipment maintenance experience with CAT/Komatsu/Volvo/John Deere.
• Asphalt experience preferred.

Responsibilities

• Inspect, diagnose, and repair asphalt plant components and conveyors.
• Perform repairs on diesel-powered mobile equipment, engines, transmissions.
• Use welding and fabrication tools for field modifications and repairs.
• Execute scheduled PMs and lubrication per manufacturer specs.

Skills

Mechanical analysis

Troubleshooting

Electrical systems

Hydraulic systems

Detail oriented

Education

Vocational training

CDL Class A

Tools

CAT ET

Scanners

Welding (MIG/TIG/Stick)

Job description

JOB SUMMARY

The Field Mechanic is a critical role responsible for the high-level maintenance, diagnostic troubleshooting, and repair of both stationary asphalt plant equipment, mobile heavy machinery, and on-road assets. This position operates primarily in the field, traveling to various plant sites to ensure maximum operational uptime and efficiency. As a key member of the maintenance team, the Field Mechanic must embody Martin Marietta's 'Safety First' culture, prioritizing a zero-incident environment while performing complex mechanical, hydraulic, and electrical repairs. The role requires a highly motivated individual capable of working independently in various outdoor environments to support the production of hot mix asphalt materials.

KEY DUTIES AND RESPONSIBILITIES

• Inspect, diagnose, and repair asphalt plant components, including conveyor systems, shakers, screens, pumps, gearboxes, crushers, and burners.
• Perform skilled mechanical repairs on diesel-powered mobile equipment (loaders, haul trucks, pavers) including engine rebuilds, transmission repairs, and the removal/installation of major mechanical parts.
• Utilize cutting torches, welders (MIG/TIG/Stick), and grinders to perform field fabrication, structural repairs, and equipment modifications.
• Execute scheduled PM services and lubrication protocols according to manufacturer specifications and Martin Marietta's Maintenance Module.
• Conduct oil sampling, filter changes, and pressure testing to identify potential failures before they occur.
• Maintain accurate electronic and paper documentation of all work performed, materials used, and equipment health status.
• Perform intermediate to advanced troubleshooting of hydraulic, pneumatic, and electrical systems.
• Use diagnostic software and tools (CAT ET, scanners) to analyze engine performance and system faults on modern heavy equipment.
• Interpret technical manuals, blueprints, and hydraulic/electrical schematics to execute precise repairs.
• Actively participate in all safety initiatives, including SLAM (Stop, Look, Analyze, Manage) and pre-shift safety inspections of work areas and equipment.
• Conduct mandatory OSHA pre-shift safety inspections of work areas and equipment.
• Strictly adhere to Lock-Out/Tag-Out (LOTO) procedures and all company safety initiatives (Guardian Angel Creed).
• Actively participate in the hazard recognition program by documenting near-misses and implementing safety improvements.
• Maintain a clean and organized service truck and work area to prevent hazards and ensure environmental compliance.
• Collaborate with Plant Managers and Superintendents to prioritize backlogs and minimize production downtime.
• Operate support equipment such as cranes, man-lifts, loaders, and haul trucks in a safe and efficient manner.
• Mentor and coach junior maintenance staff and plant operators on best practices for equipment care and minor repairs.

QUALIFICATIONS

Education

• Vocational training or relevant experience
• CDL Class A, preferred

Work Experience

• 1+ years of experience in Heavy Equipment Maintenance specifically with brands such as CAT, Komatsu, Volvo, or John Deere.
• Asphalt experience is preferred.

Knowledge, Skills, and Abilities

• Mechanical analysis
• Design tools
• Mechanical controls
• Mechanical diagrams and blueprints
• Mechanical test equipment design
• Mechanical theory
• Heavy equipment operations (engines, electrical, hydraulic, mechanical pneumatic)
• OSHA compliance and regulations
• Troubleshooting
• Detail oriented
• Problem solving
• Time management
• Effective communicator (written and spoken)

Additional Details

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. Must supply own working set of mechanical tools (check with local shop for specific details).

Union

We are excited to share the base hourly rate for this position is $35.44+. Membership with the International Union of Operating Engineers Local Union No, 9 is required upon hire. Condition and terms of employment and benefits are in accordance with the collective bargaining agreement.

Company Overview

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.

Culture and Values

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.

Benefits

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

Equal Opportunity Statement

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.