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Mason Supervisor

National Park Service · Department of the Interior · San Juan, Puerto Rico

💵 $32.68–$38.11 per hour (annualised at 2,087 hours)⏳ Closes Nov 25, 2026
Federal agencyWS-10
At a glance

A temporary promotion, not to exceed 1 year job with National Park Service in San Juan, Puerto Rico. It pays $32.68–$38.11 per hour (annualised at 2,087 hours) at grade WS-10. Applications close on Nov 25, 2026 — 14 days left.

Working pattern
On site
Who can apply
Career transition (CTAP, ICTAP, RPL), Internal to an agency
Clearance
Not Required

Main duties

  • This position is in the Maintenance Division at San Juan National Historic Site.
  • The incumbent serves as a Mason Supervisor and is responsible for supervisory control and skilled work in a variety of trades relating to historic preservation and maintenance.
  • MAJOR DUTIES Works under the general supervision of the Facility Manager.
  • The incumbent has wide latitude for independent action and is expected to proceed independently, take the initiative, and assume responsibility.
The original posting

Full details

About the role

You will serve as a Mason Supervisor with the National Park Service. This position is located in San Juan National Historic Site, in the Maintenance Division. This is a temporary promotion and/or detail not to exceed 1 year and can be extended up to 5 years.

As a temporary promotion, this may be made permanent without further competition. Travel, transportation & relocation expenses will not be paid. Relocation expenses will be the employee's responsibility.

What you will do

  • This position is in the Maintenance Division at San Juan National Historic Site.
  • The incumbent serves as a Mason Supervisor and is responsible for supervisory control and skilled work in a variety of trades relating to historic preservation and maintenance.
  • MAJOR DUTIES Works under the general supervision of the Facility Manager.
  • The incumbent has wide latitude for independent action and is expected to proceed independently, take the initiative, and assume responsibility.
  • Acting within general instructions, standard procedures, and established policies, the incumbent plans, schedules, and executes approved work programs in his/her units at acceptable standards of safety, quality, and quantity.
  • In the absence of the Facility Manager, the incumbent may be designated as Acting Facility Manager.
  • Responsible for effective and economical use of personnel, equipment, materials, and methods to meet park goals and quality standards.
  • Recommends changes in procedures and/or sequence of work operations to accomplish work of units more effectively or to meet new requirements.
  • Responsible for initiating all procurement documents required for purchasing of equipment and materials for his/her section.
  • Ensures that materials are ordered and delivered to work sites on a timely manner, so as not to delay work performance.
  • Remains current in latest preservation techniques.
  • Is responsible for training and educating employees and public about historic preservation.
  • Plans, organizes, directs, and controls all masonry operations and personnel required for the projects.
  • Maintains masonry and maintenance operations for all forts, historic walls, buildings, roads, trails, grounds, and the lighthouse.
  • Performs other duties assigned.
  • You may be required to work on-call, evenings, weekends, holidays, overtime and shift work.
  • SAN JUAN NATIONAL HISTORIC SITE AREA INFORMATION: San Juan National Historic Site consists of a system of 400+ year Spanish fortifications and bastions that encircle the 500-year-old City of San Juan, Puerto Rico.
  • Puerto Rico is the smallest island of the Greater Antilles chain.
  • The island is 35 miles wide and 100 miles long with the highest elevation at 3000 feet.
  • Average island temperature year-round is 82-87 degrees during the day and 72- 77 degrees at night.
  • The San Juan metropolitan area has all amenities including excellent health services and retail stores.
  • Recreational opportunities can be found island wide.
  • San Juan airport is located 7 miles from the park and is serviced by most major airlines with nonstop flights to major hubs.
  • Flight time to Miami is 2.5 hours and Atlanta is 3.5 hours.
  • Cost of living is considered moderate.
  • Puerto Rico has an 11.5% of sales tax.

Requirements

  • Must be a U.S. Citizen or National.
  • Appointment subject to background investigation and favorable adjudication.
  • Males born after 12-31-59 must be registered for Selective Service.
  • Direct Deposit participation required.
  • Successfully pass the E-Verify employment verification check.
  • To learn more, visit ***
  • Must possess and maintain a valid driver's license throughout employment.
  • Pay will vary based on grade level for which you're selected.
  • First time hires to the Federal government normally start at the step 1 rate.
  • You are required to wear a uniform and comply with uniform standards.
  • A uniform allowance will be provided.
  • You may be required to travel overnight away from home.
  • You are required to complete training, obtain and maintain a government credit card with travel and purchase authority.
  • Government housing is not available.
  • As a condition of employment for accepting this position, you may be required to serve a 1-year probationary period to evaluate your fitness and whether your continuation of employment advances the public interest.
  • 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 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 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.
  • This is a supervisory position that may require completion of a supervisory probationary period.

Education

There is no substitution of education for experience for Federal Wage System (FWS) positions.

How you will be evaluated

A review of your resume and supporting documentation will be made and compared against your responses to the Assessment Questionnaire to determine if you are qualified for this job.

If your resume is incomplete or does not support the responses provided in the Assessment Questionnaire, or if you fail to submit all required documentation, you will be rated 'ineligible', 'not qualified', or your score will be adjusted accordingly. If a determination is made that you have inflated your qualifications or experience, you can lose consideration for this position.

Your resume must not exceed 2 pages. Only the document submitted as the "Resume" under the Documents section will be used to determine your qualifications/eligibility and for rating purposes. In the event you submit more than one resume, only the latest submission will be reviewed.

You will be evaluated on the following competencies and/or job elements: Ability To Interpret Instructions, Specification, etc. (includes blueprints reading) Ability To Lead Or Supervise Ability To Use and Maintain Tools and Equipment Dexterity and Safety Knowledge of materials Measurement and Layout Technical Practices (theoretical precise, artistic) Overstating your qualifications and/or experience in your application materials or application questionnaire may result in your removal from consideration or your score may be lowered.

Cheating on an assessment may also result in your removal from consideration. Applicants who include vulgar, offensive, or inappropriate language or information in their application package will be ineligible for further consideration for this position.

Current surplus and current or former displaced Federal individuals who have special priority selection rights under the Agency Career Transition Assistance Program (CTAP) or the Interagency Career Transition Assistance Program (ICTAP) must be well qualified for the position to receive consideration for special priority selection.

Well qualified means that the applicant meets the following: OPM qualification standards for the position; all selective placement factors, where applicable; special qualifying conditions that OPM has approved for the position, where applicable; is physically qualified with reasonable accommodation, where appropriate to satisfactorily perform the duties of the position upon entry; and is rated by the organization at least at the well qualified level.

Current or former displaced Federal employees who are surplus, displaced, or involuntarily separated have special priority selection rights under the Agency Career Transition Assistance Program (CTAP) or the Interagency Career Transition Assistance Program (ICTAP).

To be considered under CTAP/ICTAP, you must be well-qualified, score at least 85 (i.e., meet the minimum qualification requirements, including any selective placement factors, experience and/or physical requirements), and be able to perform the duties of the position upon entry.

Documents you must provide

  • Resume which includes a list of all significant jobs held and duties performed.
  • If military or civilian, please include your rank and/or grade.
  • Resumes must not exceed two single-sided pages and resumes longer than two pages will not be accepted.
  • The minimum font size is 10-point for all body text.
  • All resumes must maintain a minimum 0.5-inch margins on all sides to ensure readability and prevent excessive content compression.
  • Including supplemental pages or attachments disguised as resume extensions are prohibited and will not be reviewed to determine your eligibility/qualifications.
  • Your 2-page resume must contain information sufficient to make a valid determination that you fully meet the qualification requirements.
  • More information on how to write a Federal Resume: *** Complete All Required Assessment(s).
  • Performance Appraisals and Awards: You must submit your most recent performance appraisal showing the official rating of record and signed by a supervisor dated within the past 18 months.
  • If unavailable, a written explanation is required (including if any prior performance appraisals/evaluations were at an acceptable level).
  • Performance awards dated within the past 5 years may also be submitted for due weight consideration.
  • Eligibility Documentation: Current and former Federal employees must submit latest SF-50 (i.e. Promotion, Separation, Within Grade Increase (WGI)) showing tenure 1 or 2 in block 24, grade, and if applicable, an additional SF-50 showing the highest grade or promotion potential held.
  • Time in grade will be determined by reviewing your resume and required SF-50s.
  • If your SF-50 showing highest permanent grade held has an effective date within the past year, your resume must clearly show that you held that grade for one year.
  • Do not submit award SF-50s.
  • Interagency Career Transition (ICTAP) and Career Transition Assistance Plan (CTAP): You MUST submit proof of eligibility including a copy of the agency notice, most recent performance rating, and most recent SF-50 showing your position, grade level, and duty location.
  • For more information visit: USAJOBS Help Center - Career Transition Programs (CTAP, ICTAP, RPL).
  • Failure to submit any of the above-mentioned required documents will result in loss of consideration due to an incomplete application package.
  • It is your responsibility to ensure all required documents have been submitted.
  • Do not submit photographs with your application package.
  • Do not upload Adobe portfolio documents.

What to expect next

Please refer to your USAJOBS account for application status; the Human Resources Office cannot respond to individual status inquiries. Once your online application is submitted you will receive a confirmation notification by email. Your application will be evaluated by the Human Resources Office to determine your eligibility for the position.

After the evaluation is complete, you will receive another notification regarding the status of your application. You can find your path with the Department of Interior at *** Any exaggeration of your experience, false statements, or attempt to conceal information may disqualify you for employment consideration.

We may verify all information you provide in your resume and questionnaire responses, through reference and/or background checks, and/or verification of your education. If you are selected, you will be contacted personally by the Human Resources Office posting this announcement.

Additional information

Additional vacancies may be filled using this job announcement. Physical Demands: Frequently lifts and handles objects weighing up to 80 pounds and occasionally more in construction work, etc. Physical effort and coordination is required in operating brake, steering, clutch, shift, and accelerator controls on tractors and in use of other power equipment and tools.

Working Conditions: Most of the work is performed in an office setting, however, frequent field trips are required for field inspections. Additionally, the incumbent performs periodic training in a classroom or training area. Outside work involves working in a hot humid condition and walking up steep slippery slopes and scaffolding using fall protection equipment.

All DOI employees, their spouses, and minor children may not acquire or retain any claim, permit, lease, small tract entry, or other rights granted by the Department in Federal lands, with limited exceptions. Additional ethics prohibitions can be found here, DOI Ethics Prohibitions | U.S. Department of the Interior.

How to apply

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Details on this page reflect the source posting as of Nov 12, 2026. Closing dates and salary ranges can change without notice — the official listing is always authoritative. How our coverage works.

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