Master Mobile Mechanic

Martin Marietta Materials; Colorado Springs (CO); On-site; USD 52,000 - 90,000; Full time

Benefits offered by this job

Medical, dental & vision

401(k) with company match

Pension plan

Paid time off

Job summary

Martin Marietta Materials in Colorado Springs seeks a Master Mobile Mechanic to lead maintenance of heavy mobile equipment, diagnose complex issues, and mentor a team across multiple sites.

You will supervise rebuilds, manage fleet health, and ensure compliance with MSHA and company standards while driving continuous improvement in reliability and performance.

Qualifications

• 4+ years mobile equipment maintenance experience
• Advanced knowledge in diesel, hydraulics and welding
• MSHA compliance and safety focus
• Ability to mentor other mechanics

Responsibilities

• Troubleshoot diesel engines, hydraulics, electricals, and drivetrains on heavy equipment
• Lead major rebuilds and precision alignments with advanced tools
• Interpret complex electrical/hydraulic schematics for control systems
• Mentor and train maintenance staff; ensure safety and quality standards
• Document service records and participate in root-cause analyses

Skills

Diesel engines

Hydraulic systems

Electrical diagnostics

Drivetrains

Welding

Troubleshooting

Education

Vocational training

Diesel mechanics certifications

Welding certifications

Tools

CAT Electronic Technician

KOMTRAX

Komatsu Care

Job description

JOB SUMMARY

The Master Mobile Mechanic combines advanced mechanical expertise with leadership responsibilities, ensuring the safe, efficient, and reliable operation of heavy mobile equipment, with a strong emphasis on high utility CAT and Komatsu earthmoving and aggregate equipment across multiple sites. You will diagnose complex issues, perform precision repairs, and mentor mechanics while driving continuous improvement in fleet performance. As the Master Mobile Mechanic, you are expected to serve as a technical lead, supervising complex rebuilds, managing yellow iron health, and providing on-the-job mentorship to the maintenance team while ensuring 100% compliance with MSHA and Martin Marietta standards.

KEY DUTIES AND RESPONSIBILITIES

• Perform expert-level troubleshooting on diesel engines, hydraulic systems, electrical circuits, and drivetrains for heavy mobile equipment (loaders, haul trucks, dozers, excavators).
• CAT maintenance: utilize OEM-specific software (such as CAT Electronic Technician and Komatsu KOMTRAX/Komatsu Care) to interpret fault codes, monitor machine health, and perform calibrations.
• Execute major component rebuilds, precision alignments, and fabrication tasks using advanced tools and diagnostic software.
• Interpret complex electrical and hydraulic schematics to repair sophisticated control systems.
• Lead root-cause analysis for recurring mechanical failures and implement corrective actions to prevent downtime.
• Conduct post-repair testing and calibration to ensure equipment meets manufacturer specifications and operational requirements before returning to production.
• Perform expert-level welding and structural fabrication (MIG, TIG, Stick, and Plasma cutting) to repair cracked frames, buckets, and truck beds.
• Use micrometers, calipers, and dial indicators to verify tolerances on shafts, bearings, and interference fits during rebuilds.
• Enforce MSHA and company safety protocols during all maintenance activities.
• Ensure proper documentation of lockout/tagout procedures and hazard assessments.
• Maintain accurate service records, diagnostic reports, and inventory logs.
• Assist in budgeting for parts, tools, and equipment upgrades.
• Collaborate with procurement teams to source high-quality components and reduce lead times.
• Serve as the technical lead for Mobile Mechanics, providing guidance, training, and performance feedback.
• Coordinate complex repair projects and ensure compliance with safety and quality standards.
• Function as a resource for supervisors and managers in planning maintenance strategies and capital projects.

QUALIFICATIONS

EducationVocational training or equivalent experience Advanced technical certifications in diesel mechanics, hydraulics, or welding preferred.

Work Experience4+ years Mobile Equipment Maintenance Experience CAT maintenance preferred Knowledge, Skills, and AbilitiesWelding and metalworking skills Mechanical analysis Design tools Mechanical controls Troubleshooting MSHA compliance and regulations Critical thinking skills Detail orientated 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.

COMPENSATION

The hiring range for this position is $38.00 -$65.00 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.

Benefits

• 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
• 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
• 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 Employer 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.

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