Senior Mechanic

Company: Martin Marietta
Location: Garwood
Posted on: June 15, 2026

Job Description:

Position Summary:

Under the immediate direction of the Plant Manager. The Senior Mechanic is responsible for performing mechanical repairs on diesel powered equipment to include trouble shooting and repairs of heavy equipment, diagnostics, rebuilds and removal and installation of mechanical parts on all types of diesel-powered equipment. Lubricate and change oils and filters as needed. Must be able to perform duties with little to no supervision.

New Hire Orientation & Safety Training are held only ONCE a month, in the San Antonio, TX office. Be prepared for travel and overnight accommodation up to 1-3 days. Accommodations & reimbursements are covered by Martin Marietta for anyone traveling more than 50 miles.

Requirements

• Observes and listens to mining equipment in operation to determine malfunctions
• Reads manuals and uses hand and power tools to perform repairs and maintenance to electrical systems, power train systems, brakes, hydraulics, and air conditioning systems
• Replaces ground engaging tools and other wear items as required
• Ability to weld and fabricate
• Performs data entry on all services performed with the use of a laptop computer
• Operates mobile equipment as needed
• Delivers technical advice to mobile equipment operators
• Maintains parts inventory and orders supplies as needed
• Demonstrates good knowledge of lock out/tag out procedure required during certain repairs
• May make service calls at other plants as needed
• Communicates/directs co-workers through hand signals and two-way radio
• Assists with training co-workers as needed
• Performs general clean-up of work areas
• Follows safety policies and procedures as written
• Performs other duties as required

Preferred Education and Experience

• High School Diploma, Equivalent GED, or equivalent experience required
• 3+ years maintenance experience
• Significant knowledge of CAT and/or Komatsu equipment required
• Trade School or related mechanical / technical certification preferred
• Commercial Driver License (CDL) required (or must be able to obtain within 90 days)
• Must maintain a valid driver's license and safe driving record

Knowledge, Skills and Abilities

• Knowledge of repair and maintenance of diesel engines, hydraulics, electrical, power transmissions, brakes, drivelines and other automotive systems to perform repair work
• Basic welding skills
• Ability to read and write in English
• 40 hours per week and overtime on an as needed basis

Physical Requirements

• Work requires the ability to lift a maximum 50 lbs.
• Work requires the ability to climb stairs, climb ladders, reach, squat, tolerate prolonged standing/walking, balance, bend from trunk, operate mobile equipment, crawl, kneel, push and pull objects
• Work requires the ability to operate hand controls with both hands and foot pedals requiring both feet
• Work requires the ability to perform sustained overhead reaching
• Work requires the ability to use vibration tools
• Work requires the ability to perform work while lying on back for prolonged periods of time and in some cases cramped quarters
• Work requires the ability to work in areas with the potential for high noise levels
• Work is performed 50% outdoors in all environmental temperatures and weather with 50% being indoors

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

Benefits:

• 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.

Keywords: Martin Marietta, Sugar Land , Senior Mechanic, Professions , Garwood, Texas