Heavy Mobile Equipment Mechanic
Job Description
Summary
This WG-5803-10 Heavy Mobile Equipment Mechanic position is located at Denali National Park & Preserve in Denali Park, Alaska, within the Maintenance Division.
This is a permanent, Career-Seasonal appointment. Please see "Duties" section for more information.
Park/Government housing may be available for this position.
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Duties
Perform Repairs and Overhauls on Heavy Mobile Equipment: Carry out troubleshooting, repair, and reassembly of major components such as engines, transmissions, differentials, hydraulic systems, braking systems, and powertrain assemblies with minimal supervision.
Diagnose Mechanical, Electrical, and Hydraulic Malfunctions: Use technical practices, test equipment (oscilloscopes, compression gauges, computer analyzers), and visual/auditory indicators to identify issues and determine the extent of required repairs.
Interpret Technical Manuals, Schematics, and Specifications: Read and apply technical diagrams, service manuals, and specifications to correctly measure, fit, install, and adjust parts and systems.
Operate, Inspect, and Service Heavy Equipment: Operate a variety of gasoline and diesel-powered engineering and construction equipment; perform safety inspections, servicing, and fueling prior to operation to ensure equipment readiness.
Use and Maintain Tools and Test Instruments: Utilize hand tools, power tools, torque tools, and diagnostic instruments to repair, or rebuild vehicle systems while maintaining tools in safe working condition.
Troubleshoot, Prioritize, and Complete Work Orders Independently: Perform repairs through work order systems, determine repair priorities based on equipment condition and mission needs, and complete tasks thoroughly with minimal return work or oversight.
CAREER-SEASONAL APPOINTMENT: This is a permanent, Career-Seasonal appointment that includes the same benefits as Career appointments, but do not provide work on a year-round basis. This position will be in a non-pay status for a maximum of 2 pay periods (4 weeks) each year, scheduled sometime between mid-November and mid-December.
Physical Demands: Physical effort is active, requiring walking, standing, lifting (up to 50 pounds) stooping, and working in cramped positions. Occasionally strenuous physical effort is exerted in climbing and carrying hand tools and in the repair of powered equipment.
Working Conditions: Works in areas that are frequently dusty, dirty, and greasy and is exposed to solvents, noxious gases and fumes that could result in burns, infections, and cuts. Works indoors and outdoors and must be capable of working satisfactorily in adverse conditions of rain, snow, and in high insect density.
Requirements
Conditions of employment
U.S. Citizenship required.
Appointment subject to background investigation and favorable adjudication.
Meet Selective Service Registration Act requirement for males.
DIRECT DEPOSIT: Selectee will be required to participate in the Direct Deposit Electronics Funds Transfer Program.
DRUG TESTING: You will be required to submit to a drug test and receive a negative drug test result prior to appointment. In addition, this position is subject to random testing for illegal drug use.
DRIVER'S LICENSE: You will be required to operate a government (or private) motor vehicle as part of your official duties; a valid driver's license is required. You will be required to submit a Motor Vehicle Operator's License and Driving Record. You must also submit (within a State sealed envelope or submitted directly by the State authorities), and at your own expense, all certified driving records from all States that disclose all valid driver's licenses, whether current or past, possessed by you.
COMMERCIAL DRIVER'S LICENSE: You must possess and maintain a current, valid Class A Commercial Driver's License (CDL) or be able to obtain one within 90 days of onboarding.
You may be required to complete training and operate a four-wheel drive vehicle.
UNIFORM: You will be required to wear a uniform and comply with the National Park Service uniform standards. A uniform allowance will be provided.
WORK SCHEDULE: You may be required to work on-call, evenings, weekends, holidays, overtime and shift work.
TRAVEL: You may be required to travel overnight away from home up to 8 nights per month. You must obtain a government charge card for travel purposes.
Government Charge Card: You may be required to complete training and obtain/maintain a government charge card with travel and/or purchase authority.
Ability to lift up to 50 pounds.
Applicants must be at least 18 years old.
PROBATIONARY PERIOD: As a condition of employment for accepting this position, you will be required to serve a 1-year probationary period. For more information regarding Probationary Periods, please see "Qualifications" section below.
*Additional Requirements located under Qualifications*
Qualifications
Requirements Continued...
PROBATIONARY PERIOD: As a condition of employment for accepting this position, you will be required to serve a 1-year probationary period during which your fitness and whether your continued employment advances the public interest will be evaluated.
This probationary period is an extension of the appointment process and therefore requires the agency to determine if continued employment would advance the public interest, meet the organization goals and mission of the agency, and/or otherwise promote the efficiency of the service. In determining if your employment advances the public interest, the agency will consider:
your performance and conduct;
the needs and interests of the agency;
whether your continued employment would advance organizational goals of the agency or the Government; and
whether your continued employment would advance the efficiency of the Federal service.
Under applicable law, the employment of an individual serving a probationary or trial period automatically terminates when that period ends unless the agency affirmatively certifies, in writing, that the individual's employment should continue and that their appointment should be finalized. In the absence of agency action to affirmatively certify continued employment beyond the probationary or trial period, such appointments are terminated.
Upon completion of your probationary period your employment will be terminated unless you receive certification, in writing, that your continued employment advances the public interest.
______________________________________________________________________
QUALIFICATIONS:
To qualify for this position, you must have sufficient knowledge and ability in the following job-related factors AND they must be CLEARLY demonstrated in your resume:
Ability To Do The Work Of The Position Without More Than Normal Supervision (SCREEN OUT): Experience performing common tasks under general direction in a full automotive service shop on heavy trucks, equipment, and automotive vehicles.
Resume should demonstrate you have performed most or all of the following: replaced spark plugs, replaced water hoses and installed water pumps; replaced brake pads, replaced accessory belts and changed the oil on gas and diesel engines.
Ability To Interpret Instructions, Specification, etc. (includes blueprints reading)
Ability To Use and Maintain Tools and Equipment
Knowledge of Equipment Assembly, Installation Repair, etc.
Technical Practices (theoretical precise, artistic)
Trouble shooting
Use of Measuring Instructions
If your knowledge and ability in the SCREEN OUT factor above is not sufficient, you will receive no further consideration. In preparing your application, describe in detail the experience and training which you have had that specifically prepared you for this job and to perform the duties described for this job. Experience should be clearly described and documented in your resume. The qualifications reviewer will not assume performance of such duties by Job Titles alone. Address your knowledge, skills and/or abilities in the areas shown in the job-related factors.
Volunteer Experience: Experience refers to paid and unpaid experience, including volunteer work done through National Service programs (e.g., Peace Corps, AmeriCorps) and other organizations (e.g., professional; philanthropic; religious; spiritual; community, student, social). Volunteer work helps build critical competencies, knowledge, and skills and can provide valuable training and experience that translates directly to paid employment. You will receive credit for all qualifying experience, including volunteer experience.
Education
There is no substitution of education for experience for Wage Grade (WG) positions.
Additional information
Travel, transportation, and relocation expenses will be paid if the selectee lives outside the local commuting area and is otherwise eligible for reimbursement of relocation expenses in accordance with the Federal Travel Regulation.
Employer paid and reimbursed relocation expenses are considered taxable income. The NPS does not provide tax, legal or accounting advice. Employees should consult professional tax, legal and accounting advisors regarding concerns about the financial implications of a Permanent Change of Station (PCS).
Park/Government housing may be available for this position.
This announcement may be used to fill additional positions if identical vacancies occur within 90 days of the issue date of the referral certificate.
A selectee receiving a first appointment to the Federal Government (Civil Service) is entitled only to the lowest step of the grade for which selected. The display of a salary range on this vacancy shall not be construed as granting an entitlement to a higher rate of pay.
The National Park Service has determined that the duties of this position are suitable for telework only during an emergency or natural disaster, with supervisory approval.
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Candidates should be committed to improving the efficiency of the Federal government, passionate about the ideals of our American republic, and committed to upholding the rule of law and the United States Constitution.
Benefits
A career with the U.S. government provides employees with a comprehensive benefits package. As a federal employee, you and your family will have access to a range of benefits that are designed to make your federal career very rewarding. Opens in a new windowLearn more about federal benefits.
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Eligibility for benefits depends on the type of position you hold and whether your position is full-time, part-time or intermittent. Contact the hiring agency for more information on the specific benefits offered.
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Date Posted
05/15/2026
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