Department of the Interior

Interdisciplinary Environmental Engineer/Petroleum Engineer-Direct Hire Authority

Denver, Colorado, Fort Collins, Colorado Full time

Interdisciplinary Environmental Engineer/Petroleum Engineer-Direct Hire Authority

Department: Department of the Interior

Location(s): Denver, Colorado, Fort Collins, Colorado

Salary Range: $118675 - $154280 Per Year

Job Summary: This position is located in Natural Resources Stewardship and Science, in the Geologic Resources Division. The incumbent serves as the NPS petroleum engineering expert, providing technical advice and assistance to the park areas Service-wide. Open to the first 100 applicants or until 03/19/2026 whichever comes first. All applications submitted by 11:59 (EST) on the closing day will receive consideration.

Major Duties:

  • The major duties of the Interdisciplinary Environmental Engineer/Petroleum Engineer position include, but are not limited to, the following: Provides technical assistance to park managers and other NPS offices by inspecting, issuing permits for, tracking, and reporting on nonfederal oil and gas operations in areas of the National Park System. Prepares proposals, scopes of work, and cost estimates for plugging and reclaiming abandoned oil, gas, and geothermal wells and associated facilities in areas of the National Park System. Serves as the Service-wide expert and consultant on issues related to petroleum and environmental engineering, providing professional advice, guidance, and technical assistance to NPS offices at all levels, partners, and stakeholders. Provides formal and informal training for NPS personnel in both group and individualized settings. Reviews and provides technical engineering expertise on oil, gas, and petroleum product pipeline proposals and activities outside park units to determine potential impacts to NPS resources and potential mitigation measures. Works to reduce environmental, resources, or safety issues associated with petroleum product spills from pipelines and other facilities. Maintains and tracks databases and maps of oil and gas operations in parks, pending projects in and external to parks, and trends.

Qualifications: All qualifications must be met by the closing date of this announcement-03/19/2026-unless otherwise stated in this vacancy announcement. Credit will be given for all appropriate qualifying experience. To receive credit for experience, your resume MUST clearly indicate the nature of the duties and responsibilities for each position, starting and ending dates of employment (month/year), and the resume must reflect full and/or part-time or total number of hours worked (i.e., work 40+ hours a week, rather than indicating full-time). If part-time, the hours must be annotated to be able to pro-rate the amount qualified specialized experience. You must meet the following Basic Requirements in order to be eligible for this position: Environmental Engineer GS- 0819 or Petroleum Engineer GS-0881: A degree in engineering. To be acceptable the program must 1. Lead to a bachelor's degree in a school of engineering with at least one program accredited by the Accreditation Board for Engineering and Technology (ABET) OR; 2. Include differential and integral calculus and courses (more advanced than first-year physics and chemistry) in five of the following seven areas of engineering science or physics: (a) statics, dynamics; (b) strength of materials (stress-strain relationships); (c) fluid mechanics, hydraulics; (d) thermodynamics; (e) electrical fields and circuits; (f) nature and properties of materials (relating particle and aggregate structure to properties); and (g) any other comparable area of fundamental engineering science or physics, such as optics, heat transfer, soil mechanics, or electronics. - OR - Combination of education and experience -- college-level education, training, and/or technical experience that furnished (1) a thorough knowledge of the physical and mathematical sciences underlying engineering, and (2) a good understanding, both theoretical and practical, of the engineering sciences and techniques and their applications to one of the branches of engineering. The adequacy of such background must be demonstrated by one of the following: 1. Professional registration or licensure -- Current registration as an Engineer Intern (EI), Engineer in Training (EIT) , or licensure as a Professional Engineer (PE) by any State, the District of Columbia, Guam, or Puerto Rico. 2. Written Test -- Evidence of having successfully passed the Fundamentals of Engineering (FE)examination or any other written test required for professional registration by an engineering licensure board in the various States, the District of Columbia, Guam, and Puerto Rico. 3. Specified academic courses -- Successful completion of at least 60 semester hours of courses in the physical, mathematical, and engineering sciences and that included the courses specified in the basic requirements under paragraph A. The courses must be fully acceptable toward meeting the requirements of an engineering program as described in paragraph A. 4. Related curriculum -- Successful completion of a curriculum leading to a bachelor's degree in an appropriate scientific field, e.g., engineering technology, physics, chemistry, architecture, computer science, mathematics, hydrology, or geology, maybe accepted in lieu of a bachelor's degree in engineering, provided the applicant has had at least 1 year of professional engineering experience acquired under professional engineering supervision and guidance. In addition to the basic requirements listed above, to qualify for this position at the GS-13 grade level, you must possess all of the following minimum qualifications by the close of the announcement. EXPERIENCE: At least one full year of specialized experience comparable in scope and responsibility to the GS-12 grade level in the Federal service (obtained in either the public or private sectors). Experience at this level must include two or more of the following: (1) Expertise with permitting, providing assistance to, inspecting, and/or solving problems associated with oil and gas operations and pipelines; (2) Expertise with projects to plug or reclaim abandoned or orphaned oil and gas wells and infrastructure; (3) Experience in developing and presenting written and oral communications, such as articles and talks, about oil and gas projects, operations, or trends. **You must include hours per week worked. You must include months, years and hours per week worked to receive credit for your work and/or volunteer experience. One year of specialized experience is equivalent to 12 months at 40 hours per week. Part-time hours are prorated. You will not receive any credit for experience that does not indicate exact hours per week or is listed as "varies". Experience listed as full-time will be credited at 40 hours per week. 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.

How to Apply: To apply for this position: You must complete the occupational questionnaire and submit the documentation specified in the Required Documents section below. To receive consideration, the complete application package must be submitted by 11:59 PM (EST) on 03/19/2026. You must provide documentation to support your claim for each eligibility selected. Please review the required documentation listed in the eligibilities language to ensure you submit the appropriate information. Note: You will only be marked eligible for those eligibilities that you selected and provided the appropriate supporting documentation. WE DO NOT ACCEPT HARD-COPY OR E-MAIL APPLICATION PACKAGES. Select Apply. If you are not logged in, you will be prompted to login or create an account. Prompted to Start the Application Process by selecting "Start Application." Click here for USAJobs Help with "How to create an application" To PREVIEW the application questionnaire, select the following link: https://apply.usastaffing.gov/ViewQuestionnaire/12904909 Select or add the resume you want to use for this application. Click here on how to build a resume in USAJOBS. Select documents you want included in this application. Review package to acknowledge your documents were reviewed. Select if you want to include your demographic information. After reading and certifying the application is true and submitted in good faith, select "Continue to Agency Site." Follow onscreen prompts and instructions to complete your application. Add the supporting documents by indexing your documents with the dropdown. Upload any missing required documents or optional documents. Review and Submit Application. While logged in, you can check the status of your application by selecting "+" next to the job title for this position. You can review or revise your application at any point during the open period of the announcement. To update an application, you should log into your USAJOBS account and select "+" next to the job title for this position. Select "Update Application" for this job. Note: When you click Update Application, you will be prompted to re-select your documents from USAJOBS. Documents submitted with the first application will no longer be associated with the applicant record. So it is important that you select all documents you want to use in the re-application. Please note, the eligibility section of the application process is designed to allow you to choose how you wish to be considered for this vacancy announcement. You will ONLY be considered for the appointment eligibilities that you select. You must provide the supporting documentation to support your claim. Please review the list of documentation provided in the eligibilities language to ensure you provide the appropriate information. You may choose more than one eligibility.

Application Deadline: 2026-03-19