A job with Geological Survey in Lakewood, Colorado. It pays $99,800–$129,742 per year at grade GS-12. Applications close on Sep 18, 2026 — 2 days left.
- Working pattern
- Telework eligible
- Who can apply
- Career transition (CTAP, ICTAP, RPL), Internal to an agency
- Clearance
- Not Required
Main duties
- 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.
Full details
About the role
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).
What you will do
- 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.
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.
- 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 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.
Education
This position does not allow substituting education for experience. This position has a mandatory education requirement.
You must submit a copy of your transcript(s) to support claimed education if substituting education for experience.
Transcripts must include your name, school name, grades, credit hours earned, major(s), grade point average or class ranking, and date the degree was conferred, if applicable. A typed list of courses, grades, semester/quarter hours, GPA, etc. will not be accepted. Non-submission may result in being rated not qualified for the position.
Unofficial transcripts are acceptable, but if you are selected for this position and you used your education to qualify, you must provide official transcripts before you begin work.
Foreign Education: To receive credit for education completed outside the United States, you must show proof that the education has been submitted to a private organization that specializes in interpretation of foreign educational credentials and such education has been deemed at least equivalent to that gained in conventional U.S. education programs.
For more information on how foreign education is evaluated, visit: ***
How you will be evaluated
Your qualifications will be evaluated based on your application materials (e.g. resume, supporting documents), the responses you provide on the application questionnaire, and the result of the additional assessment(s) required for this position. To be considered for this position, you must complete all required steps in the process. 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 assessed in the following competencies (knowledge, skills, abilities, and other characteristics): Chemistry Laboratory Techniques Data Analysis Technical Competence Instrumentation To be considered for this position, you must complete all required steps in the process.
In addition to the application and application questionnaire, this position requires successful completion of additional assessment(s), including a Structured Resume Review. This assessment measures the critical competencies listed above that are required to successfully perform the job.
All qualified non-competitive applicants and the best-qualified Merit Promotion applicants will be referred to the hiring manager for consideration.
DUE WEIGHT: Please submit 1) a copy of your most recent performance appraisal/evaluation and 2) a list of any awards (e.g. superior performance awards, special act or achievement awards, quality step increase, etc.) you received in the last 5 years. Any performance appraisal/evaluation and award documentation you provide will be forwarded to the selecting official.
The selecting official will review this documentation and give it due weight consideration during the overall selection process. If you do not have your most recent performance appraisal/evaluation, you must submit a statement as to why it is not available. Please indicate if any prior performance appraisals/evaluations were at an acceptable level.
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 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; education, and experience 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, with dates in month-year format (include month/day/year format if needed for 52 weeks of experience), and indicate hours worked per week (or full-time).
- Your resume must clearly show how long you have held each grade/rank.
- Resumes must not exceed 2 single-sided pages and resumes longer than 2 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.
- Your 2-page resume must contain information sufficient to make a valid determination that you fully meet the specialized experience requirements.
- Resume Builder: *** Complete All Required Assessment(s).
- Performance Appraisals and Awards: All applicants must submit their most recent performance appraisal showing the official rating of record and signed by a supervisor.
- If the performance appraisal is not dated within the last 18 months OR no performance appraisal is available, you must submit a statement as to why it is not available (including if any prior performance appraisals/evaluations were at an acceptable level).
- All College Transcript(s), if qualifying based on education.
- 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.
- Veterans Preference Documentation: Veterans eligible under VRA (GS-11 & below only), VEOA, 30% or more Disabled, or Disabled Veterans Enrolled in a VA Training Program must submit the most recent Documentation of Service and Separation under Honorable Conditions (e.g. DD-214) as listed on the SF15.
- If you are a Parent or Spouse of a Disabled or Deceased Veteran, you must submit all documentation as listed on the SF15.
- You may request a copy of the VA letter from ***
- If you are a veteran within 120 days of discharge, you must submit signed documentation from the Armed Forces certifying: 1) your expected release/retirement from active duty, 2) under honorable conditions, 3) your pay grade/rank/rate at time of discharge, 4) dates of active-duty service, 5) any campaign or expeditionary medals received, & 6) dated within 120 days of your separation.
- Public Land Corps: You must provide a copy of your signed Certificate of Non-Competitive Eligibility and clearly state in your resume time served and duties performed on an appropriate conservation project.
- Special Appointing Authorities: If you are applying under a special appointing authority (i.e. Schedule A, Peace Corps, Military Spouses, etc.), you must submit appropriate documentation to verify your eligibility.
- If you fail to submit proof, you will not receive consideration.
- If you're eligible for an authority not listed, you are responsible for submitting documentation that's appropriate for that specific authority.
- CTAP/ICTAP eligibles 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: 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. Promotion to the full performance level is neither guaranteed nor implied and will be based solely on your ability to satisfactorily perform the work of the position, existing work at the higher grade level, and recommendation by the position's supervisor.
Physical Demands Work requires standing for long periods of time in a laboratory environment. Work commonly requires exertion in the preparation of samples and running analyses. Additionally, the incumbent may spend extended periods of time working at a computer in an office/laboratory environment.
Work Environment Work is primarily performed in a laboratory setting, and involves regular and recurring exposure to irritant, toxic, and corrosive chemicals, as well as high-voltage electrical instruments. Special safety precautions and training are required, and the incumbent uses protective clothing and gear such as a laboratory coat, gloves, and safety glasses.
Computer work may occur in an office environment.
How to apply
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Details on this page reflect the source posting as of Sep 17, 2026. Closing dates and salary ranges can change without notice — the official listing is always authoritative. How our coverage works.
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