SJS Headquarters

  • Heavy Mobile Equipment Mechanic

    Job Locations US-CA-Los Angeles
    Job ID
    # of Openings
    Skilled Trades
    Recruiter Email
    Recruiter: Phones : Number
    Recruiter: Phones : Extension
  • Overview

    SJS Executives is currently seeking experienced Heavy Mobile Equipment Mechanics (HMEM). The primary purpose of the Heavy Mobile Equipment Mechanic is to operate, maintain and repair the 22 Emergency Generator power plants located throughout the VA-WLA facility. The emergency generators are required to be maintained in a constant state of readiness for automatic starting in the event of an electric utility failure.


    • HMEM is responsible for the repair, modification and maintenance and periodic testing of all emergency generators. The generator partial inventory consists of (2) Electromotive 2000 K.W. 16-cylinder generator, two (2) Detroit 8 cylinder generators, one (1) Detroit 500 K.W. 16-cylinder generator, one (1) Caterpillar 1500 KW 12-cylinder generator, and one (1) 6 cylinder Allis-Chalmers generator. There are numerous other smaller generators. Engine types include EMD, Perkins, Caterpillar, Cummins, Isuzu and John Deere.
    • Troubleshoot, calibrate, repair, design and modify, racks, injectors, and valves
    • Check air boxes for excessive wear to pistons, change out power packs, check rod bearings, feed pipes, set racks, check torque or cylinder heads,
    • Maintain turbo air cleaners, check and change oil, oil filters, fuel filters
    • Repair modify and maintain all associated component systems and controls.
    • Approximately 75% of their working hours performing maintenance checks, repairs, and testing of the emergency generators, and approximately 25% performing other duties such as: repairs to Heavy Duty Lawn Equipment, Electric Carts, Fork lifts, man lifts, street sweeper, Backhoe, and other mechanical repairs.
    • Required to possess specialized skill and knowledge in the operation and maintenance of a wide variety of Diesel, gasoline and electric powered heavy equipment, and full maintenance, repair, and operation of emergency generators.  This skill level must be sufficient to provide guidance and instruction to others mechanic workers.
    • Good working knowledge of shop mathematics and the applications to pumping and piping, horse power, fuel consumption, heat transfer efficiencies.
    • Ability to diagnose equipment failures using meters, gauges, instrumentation to identify complex problems in the field. In depth knowledge of the operation of Diesel, Gasoline engines and Electric Motors and all related systems and components such as cooling tower operations, large pumping systems, thermostatic controlled devices, alarm systems and engine protection shutdown devices. Must possess the knowledge and theory of hydraulics, mechanical and electrical.
    • Possess a good working knowledge of other trades such as Industrial Plumbing, Electrical, (Alternating current and Direct current principles), Welding, Instrumentation and Calibration, HVAC and heat transfer.
    • Perform maintenance and repairs on site where the equipment is located. They will be subjected to cramped quarters, awkward positions on the ground, on a ladder or scaffold and required to reach in between and around components making certain repairs more difficult.
    • Excellent reading and comprehension skill of technical materials.
    • They must possess good communication skills.
    • Possess the ability to interpret blueprints, technical manuals, exploded views and parts lists and the ability to communicate what is required to make effective repairs.
    • Adept in the use of all hand and power tools. This includes the use of power impact wrenches, hand tools, welding and cutting torch, hoists and lifting devices. In all instances the HMEM will work within safety guidelines.
    • Will be working around rotating equipment. They must be of sound mind and body, cognizant of their surroundings and always aware of the safety protocols required. They need to be attentive to their work, and exercise good judgement all the time.
    • Organized and able to prioritize and plan their work in an efficient manner, meets all testing and maintenance check timelines, provides all reports when due and all Joint Commission Documentation is provided to the Supervisor on time.
    • The HMEM is responsible for a variety of electromotive generators and general mechanical systems as well as various construction and maintenance facility equipment. The complexity of design and the details of emergency and back-up systems encountered at the Medical Center are far more rigorous than those of industrial or commercial layouts. Therefore, the HMEM will receive many project and work assignment with a minimum of instruction concerning the method by which the work is to be accomplished project materials which are to be used to complete the assigned task. Much of the work is assigned on a project or repair basis requiring the mechanic to make difficult decisions as to the design and modification of a system or systems for specific departmental needs
    • HMEM works from mechanical drawings, schematics, and published manufacturer specifications and manuals and must be able to make judgements and decisions about assigned work as technical guidelines may not exist for the area if modification encountered.
    • HMEM must be able to plan and lay out a work plan that at the same time must be flexible enough to accommodate changes that may occur during the work and which require on the spot decision making. A mechanic at this level must be able to determine what a situation demands in terms of construction, location and installation of special equipment so that work of a critical nature (such as scientific experimental activities).
    • The portable and stationary equipment includes, but is not limited to, metal working, exhaust fans, vacuum pumps, mechanized building management equipment, food and clothing handling equipment, fork lifts, back hoes, commercial lawn equipment, electric carts such as GEM cars, Electric Pallet Jacks and hydraulic and electric man lifts.
    • Component parts of equipment repaired are machined parts of close tolerance such as: gearing, pumps, clutches, valves, etc., requiring a good knowledge of the machinist and welding trade, and implementation of tools of those trades to effect repairs.
    • Mechanic performs regularly scheduled maintenance inspections, diagnoses malfunctions and makes minor and major repairs on all included but not limited to the listed equipment above.
    • Independence and works with minimal supervisory controls. HMEM receives written work orders and verbal instructions typically general in nature and the tradesman is responsible for developing a correct plan of action and the execution and accomplishment of the tasks
    • Technical manuals and factory parts breakdowns are utilized frequently to order parts, determine sequences of operations, diagnostics for troubleshooting and maintenance planning. The mechanic will have the authority to prioritize their work under normal circumstances, unless directed otherwise by the immediate supervisor due to the needs of the facility.
    • The HMEM is required to use good judgement to assure a high-quality outcome and assurance of highly reliable emergency equipment, and all other assigned equipment as well.


    • U.S. Citizen - Proof of Citizenship will be required
    • Valid Driver's License - "C" Class
    • Must pass ground check 
    • 4 years of experience

    Please send resumes to


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