Mobile Equiptment Mechanic
Martin Marietta, Santa Margarita, CA, United States
JOB SUMMARY
As a Mobile Mechanic, you will ensure the safe, efficient, and reliable operation of Martin Marietta diesel‑powered mobile equipment across various sites. Your expert mechanical skills will support our production goals, while adhering to the company’s strong safety and compliance standards. You will diagnose, repair, maintain, and overhaul heavy‑duty trucks, loaders, haulers, and other heavy mobile equipment often performing field‑based repairs.
KEY DUTIES AND RESPONSIBILITIES
Diagnose and troubleshoot mechanical, hydraulic, and electrical system failures on diesel‑powered heavy equipment.
Perform scheduled preventative maintenance, including oil and filter services, lubrication, and brake and driveline inspections.
Perform welding and fabrication as and when needed and adhere to Martin Marietta safety policies, procedures, and guidelines.
Oversee the major/mini mobile equipment maintenance and address the gaps to supervisor.
Rebuild components, install replacement parts, and execute intermediate repairs with minimal supervision.
Read and interpret technical manuals, schematics, and wiring diagrams to ensure accurate repairs.
Use hand and power tools, pressure and electrical test equipment to verify equipment performance and diagnose faults.
Conduct pre‑shift safety inspections in accordance with MSHA and company guidelines to ensure operational readiness.
Maintain and manage parts inventories; order supplies in a timely manner to minimize downtime.
Operate haul trucks and loaders as needed to support repair and maintenance activities safely.
Mentor and train junior technicians or less‑experienced mechanics as part of skills development.
Collaborate with shop supervisors to prioritize work orders and organize field maintenance tasks.
Ensure all repair documentation and inspection reports are completed accurately and submitted on time.
QUALIFICATIONS
Education
Vocational or Technical Training
Work Experience
2+ years of related Mobile Equipment Maintenance experience, preferred
CAT maintenance preferred
Knowledge, Skills, and Abilities
Welding and metalworking skills
Mechanical analysis
Design tools
Mechanical controls
Troubleshooting
MSHA compliance and regulations
Problem solving
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 dB.
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.
The hiring range for this position is $40.00–$55.00 exclusive of benefits or bonuses (discretionary and non‑discretionary). The offered base compensation will be determined based on factors such as geographic location, business need, market conditions, proficiencies, skills, education, and experience. Additionally, at Martin Marietta we place a high value on internal pay equity and will consider the compensation for those in similarly situated roles and direct team members. The hiring range for this role represents the base compensation we expect to pay for the position at time of hire and does not represent the total possible base pay of the position.
In addition to our base compensation, we also offer a competitive benefits package for full‑time employees, including medical, dental and vision coverage; prescription drug coverage; health savings accounts; flexible spending accounts; life, AD&D and disability insurance; 401(k) with a company match and an employer‑funded defined benefit pension plan. Other benefits include paid time off, paid holidays, education/tuition assistance, an employee discount program, adoption assistance, wellness programs and more.
Part time employees are eligible to participate in the 401k plan and receive a company match. In addition, they are eligible to start accruing service for the pension plan.
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As a Mobile Mechanic, you will ensure the safe, efficient, and reliable operation of Martin Marietta diesel‑powered mobile equipment across various sites. Your expert mechanical skills will support our production goals, while adhering to the company’s strong safety and compliance standards. You will diagnose, repair, maintain, and overhaul heavy‑duty trucks, loaders, haulers, and other heavy mobile equipment often performing field‑based repairs.
KEY DUTIES AND RESPONSIBILITIES
Diagnose and troubleshoot mechanical, hydraulic, and electrical system failures on diesel‑powered heavy equipment.
Perform scheduled preventative maintenance, including oil and filter services, lubrication, and brake and driveline inspections.
Perform welding and fabrication as and when needed and adhere to Martin Marietta safety policies, procedures, and guidelines.
Oversee the major/mini mobile equipment maintenance and address the gaps to supervisor.
Rebuild components, install replacement parts, and execute intermediate repairs with minimal supervision.
Read and interpret technical manuals, schematics, and wiring diagrams to ensure accurate repairs.
Use hand and power tools, pressure and electrical test equipment to verify equipment performance and diagnose faults.
Conduct pre‑shift safety inspections in accordance with MSHA and company guidelines to ensure operational readiness.
Maintain and manage parts inventories; order supplies in a timely manner to minimize downtime.
Operate haul trucks and loaders as needed to support repair and maintenance activities safely.
Mentor and train junior technicians or less‑experienced mechanics as part of skills development.
Collaborate with shop supervisors to prioritize work orders and organize field maintenance tasks.
Ensure all repair documentation and inspection reports are completed accurately and submitted on time.
QUALIFICATIONS
Education
Vocational or Technical Training
Work Experience
2+ years of related Mobile Equipment Maintenance experience, preferred
CAT maintenance preferred
Knowledge, Skills, and Abilities
Welding and metalworking skills
Mechanical analysis
Design tools
Mechanical controls
Troubleshooting
MSHA compliance and regulations
Problem solving
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 dB.
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.
The hiring range for this position is $40.00–$55.00 exclusive of benefits or bonuses (discretionary and non‑discretionary). The offered base compensation will be determined based on factors such as geographic location, business need, market conditions, proficiencies, skills, education, and experience. Additionally, at Martin Marietta we place a high value on internal pay equity and will consider the compensation for those in similarly situated roles and direct team members. The hiring range for this role represents the base compensation we expect to pay for the position at time of hire and does not represent the total possible base pay of the position.
In addition to our base compensation, we also offer a competitive benefits package for full‑time employees, including medical, dental and vision coverage; prescription drug coverage; health savings accounts; flexible spending accounts; life, AD&D and disability insurance; 401(k) with a company match and an employer‑funded defined benefit pension plan. Other benefits include paid time off, paid holidays, education/tuition assistance, an employee discount program, adoption assistance, wellness programs and more.
Part time employees are eligible to participate in the 401k plan and receive a company match. In addition, they are eligible to start accruing service for the pension plan.
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