Chemist

Some of the major duties you will perform include but are not limited to the following:

• Performs various geochemical analyses on geologic and environmental materials (e.g. petroleum extracts rocks sediments) submitted to the Petroleum Geochemistry Research Laboratory (PGRL). Submits and validates associated data in the Laboratory Information Management System (LIMS).
• Independently operates and maintains instrumentation such as gas chromatographs stable isotope-ratio mass spectrometers gas chromatograph-mass spectrometers and carbon elemental analyzers.
• Follows established standard operating procedures and trains others as needed. Develops and documents method modifications as needed following Quality Management System requirements.
• Develops new techniques and procedures that support petroleum geochemical studies as needed. Prepares submits and disseminates reports that document the development and implementation of these new methods.
• Maintains documentation such as logbooks scientific notebooks and maintenance logs as specified under the Quality Management System.
• Operates a government owned or leased vehicle as an incidental driver.

• Must be a U.S. Citizen or National.
• Appointment subject to background investigation and favorable adjudication.
• Males born aftermust be registered for Selective Service.
• Direct Deposit participation required.
• Successfully pass the E-Verify employment verification check. To learn more visit possess and maintain a valid drivers license throughout employment.
• A physical examination will be required or a statement regarding physical ability will need to be completed. You must maintain physical fitness standards throughout employment.
• You are required to complete training obtain and maintain a government credit card with travel and purchase authority.

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 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 individuals employment should continue and that their appointment should be 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.

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 bachelors 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.