This position is located within the Department of the Interior, U.S. Geological Survey, Rocky Mountain Region, Central Energy Resources Science Center, Lakewood, Colorado.

Salary :

GS-12: $99,800 (Step 01) to $129,742 (Step 10).

Qualifications:

All qualifications must be met by the closing date of this announcement - 09/18/2026 unless otherwise stated in this vacancy announcement. Competitive candidates must also meet Time-in-Grade requirements as defined in 5 CFR 300, Subpart F. For current Federal employees, if hours worked per week are not included on your resume, you must submit a non-award SF-50 as part of your application to be used to validate your work schedule and determine the amount of specialized experience that you will be granted. An award SF-50 will not be acceptable documentation for which to consider your amount of qualifying experience . For periods of time that reflect military service, the DD-214 or Statement of Service is sufficient to meet the work schedule requirement as the service dates will be reflected. For all other applicants who are not current federal employees, your resume must state either "full-time" (or "40 hours a week") or "part-time" with the number of hours worked per week to ensure proper crediting of specialized experience.

Minimum Qualification Requirements:

To qualify for this position, you must meet the following minimum qualifications: Basic Educational Requirement AND Specialized Experience for the series to which you are applying.

Basic Educational Requirements:

In addition to the specialized experience requirements for this position, you must meet at least one of the following: A.

Degree :

Successful completion of a full 4-year course of study in an accredited college or university leading to a bachelor's or higher degree in physical sciences, life sciences, or engineering that included 30 semester hours in chemistry, supplemented by course work in mathematics through differential and integral calculus, and at least 6 semester hours or the equivalent in physics. You must submit transcripts. -OR- B.

Combination of education and experience:

course work as shown in A above (24 semester hours or the equivalent in physical sciences, life sciences, or engineering), including at least 30 semester hours or the equivalent in chemistry, supplemented by mathematics through differential and integral calculus, and at least 6 semester hours or the equivalent of physics, plus appropriate experience and/or additional education for a total of 4 years. The education or combined education and experience must be comparable in type, scope and thoroughness to that acquired through successful completion of a 4-year course of study as described in "A" above. (CLICK

HERE FOR DETAILS ON HOW TO COMBINE EDUCATION AND EXPERIENCE

) To qualify for this position at the GS-12 grade level:

Experience :

To qualify, you must possess at least one full year of specialized experience equivalent to the GS-11 level in the Federal service (obtained in either the public or private sectors). Specialized experience is defined as demonstrated experience: The ideal candidate has experience working in an oil and gas testing laboratory operating, maintaining, and troubleshooting stable isotope ratio mass spectrometers and gas chromatographs. Other necessary specialized experience includes analyzing samples under a quality management system and inputting data into a laboratory information management system. You must include hours per week worked.

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.