Organizational Location: This position is with the Department of Homeland Security, within U.S. Customs and Border Protection, Operations Support, Laboratories and Scientific Services, located in Savannah, Georgia or Newark, New Jersey.
Summary
Organizational Location: This position is with the Department of Homeland Security, within U.S. Customs and Border Protection, Operations Support, Laboratories and Scientific Services, located in Savannah, Georgia or Newark, New Jersey.
U.S. Citizens, Career Transition Assistance Plan DHS employees, Reemployment Priority List, Interagency Career Transition Assistance Plan Federal Employees. This announcement will be utilized to fill positions through the Direct Hire Authority.
This position starts at a salary of $106,437.00 (GS-13, Step 1) to $138,370.00 (GS-13, Step 10).
While serving as a Physical Scientist (IRMS), your duties may include:
Handling complex problems and advancing technology independently and developing technical and technological advancements in Isotope Ratio Mass Spectrometry (IRMS).
Conducting and investigating scientific, technical, and statistical work on quality-related applications as related to technical training, sub-sampling, methods, instrumentation, validations and verifications, test data and reports.
Supporting all major aspects of the field laboratory, such as forensic and trade commodity analysis, with a concentration in source attribution/provenance studies.
Testing and validating analytical methods and instrumentation, identifying equipment needs for the laboratory, as required, and evaluating instruments and test technologies.
Developing and providing input on complex scientific and technical procedures and methods.
You must be a U.S. Citizen to apply for this position
Males born after 12/31/1959 must be registered with Selective Service
Primary U.S. residency for at least three of the last five years (additional details below)
All pre-employment processes will be conducted in English
You may be required to pass a background investigation
CBP follows the DHS Drug-Free Workplace Plan for drug testing procedures
As an employee of CBP, you will be joining a workforce that is dedicated to accomplishing our mission while maintaining the trust of our Nation by strictly adhering to all government ethics standards. Your conduct will be subject to the ethics rules applicable to all Executive Branch employees, and to CBP employees specifically, as well as the criminal conflict of interest statutes. Once you enter on duty, these rules include obtaining approval for outside employment or business activity, to ensure such employment or business activity is not prohibited and does not interfere or conflict with performance of your official duties. Please review further details via the following link.
DHS uses E-Verify, an Internet-based system, to confirm the eligibility of all newly hired employees to work in the United States. Learn more about E-Verify including your rights and responsibilities.
Basic Requirement: You qualify for this position if you meet the basic requirement listed above and possess the experience or substitution of education, if applicable, as described below:
A. Degree: physical science, engineering, or mathematics that included 24 semester hours in physical science and/or related engineering science such as mechanics, dynamics, properties of materials, and electronics.
OR
B. Combination of education and experience: education equivalent to one of the majors shown in "A" above that included at least 24 semester hours in physical science and/or related engineering science, plus appropriate experience or additional education.
AND
Experience: You qualify for the GS-13 grade level if you possess 1 year of specialized experience equivalent to at least the next lower grade level, performing duties such as:
Running, maintaining, and troubleshooting high temperature conversion elemental analyzer (TC/EA) IRMS, combustion elemental analyzer (EA) IRMS, and gas chromatography (GC) IRMS instrument.
Accurately measuring carbon, nitrogen, sulfur, oxygen, and hydrogen isotopic ratios across a range of matrices.
Interpreting data results and drawing conclusions about the origin of a variety of trade commodities.
Teaching and guiding journeyman scientists and other personnel in performance improvement of analytical skills.
NOTE: Your resume must explicitly indicate how you meet this requirement, otherwise you will be found ineligible. Please see the "Required Documents" section below for additional resume requirements.
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.
You must meet all qualification requirements, including education if applicable to this position, subject to verification at any stage of the application process by 05/27/2026.
The Office of Personnel Management (OPM) must authorize employment offers made to current or former political appointees. If you are currently, or have been within the last 5 years, a political Schedule A, Schedule C, Non-career SES or Presidential Appointee employee in the Executive Branch, you must disclose this information to the Human Resources Office.
Background Investigation: U.S. Customs and Border Protection (CBP) is a federal law enforcement agency that requires all applicants to undergo a thorough background investigation prior to employment in order to promote the agency's core values of vigilance, service to country, and integrity. During the screening and/or background investigation process, you will be asked questions regarding any felony criminal convictions or current felony charges, the use of illegal drugs (e.g., marijuana, cocaine, heroin, LSD, methamphetamines, ecstasy), and the use of non-prescribed controlled substances including any experimentation, possession, sale, receipt, manufacture, cultivation, production, transfer, shipping, trafficking, or distribution of controlled substances. For additional information on the preemployment process, review the following link: Applicant Resources | CBP Careers
Residency: There is a residency requirement for all applicants not currently employed by CBP. Individuals are required to have physically resided in the United States or its protectorates (as declared under international law) for at least three of the last five years. If you do not meet the residency requirement and you have been physically located in a foreign location for more than two of the last five years, you may request an exception to determine if you are eligible for a residency waiver by meeting one or more of the following conditions:
Working for the U.S. Government as a federal civilian or as a member of the military
A dependent who was authorized to accompany a federal civilian or member of the military who was working for the U.S. government
Participation in a study abroad program sponsored by a U.S. affiliated college or university
Working as a contractor, intern, consultant or volunteer supporting the U.S. government
Probationary Period: All employees new to the federal government must serve a one year probationary period during the first year of his/her initial permanent federal appointment to determine fitness for continued employment. Current and former federal employees may be required to serve or complete a probationary period.
Education
Please see the Qualifications and Required Documents sections for more information if education is applicable to this position.
Additional information
The vacancy questionnaire includes four short, free-response essay questions. This provides an opportunity for you to highlight your dedication to public service for the hiring manager and agency leadership (or designee(s)). While your responses are not required and will not be scored, we encourage you to thoughtfully address each question. Please provide a response of 200 words or less to each question. You will be asked to certify that you are using your own words and did not use a consultant or artificial intelligence (AI) such as a large language model (LLM) like ChatGPT or Copilot. https://apply.usastaffing.gov/ViewQuestionnaire/12966899
Positions with known promotion potential do not guarantee promotion, nor is the promise of promotion implied.
The Department of Homeland Security encourages persons with disabilities to apply, to include persons with intellectual, severe physical or psychiatric disabilities, as defined by 5 CFR § 213.3102(u), and/or Disabled Veterans with a compensable service-connected disability of 30 percent or more as defined by 5 CFR § 315.707. Veterans, Peace Corps/VISTA volunteers, and persons with disabilities possess a wealth of unique talents, experiences, and competencies that can be invaluable to the DHS mission. If you are a member of one of these groups, you may not have to compete with the public for federal jobs. To determine your eligibility for non-competitive appointment and to understand the required documentation, click on the links above or contact the Servicing Human Resources Office listed at the bottom of this announcement.
Candidates should be committed to improving the efficiency of the Federal government, passionate about the ideals of our American republic, and committed to upholding the rule of law and the United States Constitution.
A career with the U.S. government provides employees with a comprehensive benefits package. As a federal employee, you and your family will have access to a range of benefits that are designed to make your federal career very rewarding. Opens in a new windowLearn more about federal benefits.
Eligibility for benefits depends on the type of position you hold and whether your position is full-time, part-time or intermittent. Contact the hiring agency for more information on the specific benefits offered.
How you will be evaluated
You will be evaluated for this job based on how well you meet the qualifications above.
This position is being filled under a Direct Hire Authority. We will review your resume and supporting documentation to ensure you meet the minimum qualification requirements. All applicants who meet minimum qualifications and any basic requirements applicable to this position, will be forwarded to the hiring manager for consideration and may be contacted for an interview. As a part of the interview process, additional selection criteria may be administered by the hiring manager.
The competencies or knowledge, skills, and abilities needed to perform this job are:
Knowledge and Skill of the principles, theories, and practices of isotope ratio mass spectroscopy (IRMS), including advanced analytical techniques, sufficient to serve as a subject matter expert in the analysis of samples.
Knowledge in the interpretation of CBP laws, policies, and regulations, researching precedent decisions and requirements of other Federal agencies' laws and regulations, and resolving broad, complex, and unprecedented technical problems in various scientific areas to provide authoritative advice to internal senior management or external parties.
Ability to organize and coordinate through systematic efforts to meet operational and programmatic needs, and to effectively communicate, both orally and in writing, conclusions, alternatives, and recommendations on national policies, programs, or studies.
Veterans: Veterans preference does not apply to selections made using the Direct Hire Authority. Veteran applicants will be considered along with all other applicants who apply.
Agency Career Transition Assistance Program (CTAP) or the Interagency Career Transition Assistance Program (ICTAP) Eligibles: If you have never worked for the federal government, you are not CTAP/ICTAP eligible. View information about CTAP/ICTAP eligibilityon OPM's Career Transition Resources website. To be considered under CTAP/ICTAP, you must have knowledge, skills, abilities and/or competencies as defined above which clearly exceed the minimum qualification and any applicable basic requirements for the vacancy. In addition, you must submit the supporting documents listed under the Required Documents section of this job announcement.
A career with the U.S. government provides employees with a comprehensive benefits package. As a federal employee, you and your family will have access to a range of benefits that are designed to make your federal career very rewarding. Opens in a new windowLearn more about federal benefits.
Eligibility for benefits depends on the type of position you hold and whether your position is full-time, part-time or intermittent. Contact the hiring agency for more information on the specific benefits offered.
Your resume: A resume describing your job-related qualifications is required and will be used for the purpose of reviewing your qualifications and determining what training, if any, would be required when placed. A resume in English is required. It must contain your full legal name, phone number, relevant work history including a detailed description of your duties, the dates you performed those duties (MM/DD/YY), your hours worked per week, job title, as well as series, grade, and salary (if applicable). For additional required items, see the link. It is recommended that you upload your resume as a PDF instead of a Word document to ensure document quality. Ensure that your uploaded resume is not a password protected document, to include Office 365 passwords. Limit your resume to no more than two pages. The USAJOBS database will not allow an applicant to submit an application that includes a resume over two pages.
Your transcripts: All applicants are required to submit a copy of your college transcript (unofficial is acceptable at this time; however, official copies will be required prior to entrance on duty) or a list of coursework with hours completed provided from the institution. If you are a current CBP employee within the position series announced, transcripts will not be required at the time of application; however, education will be verified if you are selected and you may be required to submit transcripts at that time. Education must be from an institution accredited by an agency recognized by the U.S. Department of Education. Education obtained from a foreign university or college is not creditable unless it has been evaluated by an organization that specializes in interpretation of education credentials. Note: If submitting documentation of an evaluation, transcripts are still required. For a listing of some accrediting agencies see NACES | Credentials Evaluations Provided by NACES Members. See https://www.accreditation.info/education-quality/usa-recognition.html for more information.
Are you claiming special priority selection rights under the Agency Career Transition Assistance Program (CTAP), Interagency Career Transition Assistance Program (ICTAP), or the Reemployment Priority List (RPL)? You must submit a separation notice; your most recent SF-50 (noting your current position, grade level and duty location); a copy of your most recent performance rating; an agency certification that you cannot be placed after injury compensation has been terminated; an OPM notification that your disability annuity has been terminated; or a Military Department of National Guard Bureau notification that you are retired under 5 U.S.C. 8337(h) or 8456; or RPL registration documentation.
Are you a current or former federal employee? If yes, it is recommended that you submit a copy of your SF-50(s) (Notification of Personnel Action) to support your experience. Examples of appropriate SF-50s include promotions, within-grade increases and accessions. Retired former federal employees are required to submit your retirement SF-50 and encouraged to submit your most recent annuity statement.
Are you a current or former political Schedule A, Schedule C, Non-career SES or Presidential Appointee employee? Submit a copy of your initial and termination SF-50s.
If you are relying on your education to meet qualification requirements:
Failure to provide all of the required information as stated in this vacancy announcement may result in an ineligible rating or may affect the overall rating.
To begin your online application, click "Apply Online" to create a USAJOBS account and follow the prompts or log in to your existing account. Your application packet must include a completed assessment questionnaire, a resume, and any applicable and/or required supporting documentation. Please see the "Required Documents" section for additional information. All application materials, including transcripts, must be in English.
Applications and supporting documentation will not be accepted by mail or email. The address below is for inquiries only. You may apply more than once, but the most recent application is the only one that will be used. You must submit your resume, your online questionnaire, and any supporting documents by 11:59 PM Eastern Time on 05/27/2026.
It is your responsibility to verify that any information entered or uploaded is received and is accurate. Human Resources will not modify or change any part of your application. Determining your eligibility and qualifications is dependent on the supporting documentation and information provided, which may impact your referral for further consideration. If a document is not legible, you will not be able to view it in your application and you must again upload it by the closing date
Please upload your resume under the "Resume" document type. Any other relevant supporting documents should be uploaded under their appropriate document types as mentioned above. Only resumes up to a total of two pages will be accepted. Applicants with resumes exceeding two pages will be removed from consideration. Do notsubmit documents as a PDF Portfolios.
DHS offers competitive salaries and an attractive benefits package, including: health, dental, vision, life, and long-term care insurance; retirement plan; Thrift Savings Plan [similar to a 401(k)]; Flexible Spending Account; Employee Assistance Program; personal leave days; and paid federal holidays. Other benefits may include: flexible work schedules; tuition reimbursement; transportation subsidies; uniform allowance; health and wellness programs; and fitness centers. DHS is committed to employee development and offers a variety of employee training and developmental opportunities. For more information, go to the DHS Careers website and select "Benefits." Disabled veteran leave will be available to any Federal employee hired on or after November 5, 2016, who is a veteran with a service-connected disability rating of 30 percent or more.
When U.S. Customs and Border Protection completes their selections, the remaining list of qualified candidates may be shared with hiring managers and Human Resources specialists at additional agencies who are hiring for similar positions. There is no guarantee of further consideration, and you can continue to explore other job opportunity announcements.
The Fair Chance to Compete for Jobs Act prohibits the Department of Homeland Security and its Components from requesting an applicant's criminal history record before that individual receives a conditional offer of employment. In accordance with 5 U.S. Code § 9202(c) and 5 C.F.R § 920.201 certain positions are exempt from the provisions of the Fair Chance to Compete Act. Applicants who believe they have been subjected to a violation of the Fair Chance to Compete for Jobs Act, may submit a written complaint to hc-recordsmgmt@cbp.dhs.gov.
Laboratories and Scientific Services
Please read entire announcement
Please apply online
Washington, DC 20229
US
Next steps
GS Salary: Visit this link to view the locality pay tables by geographic area. If you do not see your geographic area listed, select the "Rest of United States" pay table. Some positions fall under a special pay rate depending on the series, grade level and location of the position.Please visit this link to view special pay rate charts.
The open period for this job opportunity announcement may be extended to allow for a sufficient applicant pool.
Once the job opportunity announcement has closed, we will refer all minimally qualified applications to the hiring manager for further consideration and interviews. You will be notified by email when applications have been reviewed and referred to the hiring manager for consideration. Stay informed of changes to your application status by signing up for automatic email alerts with your USAJOBS account. We expect to make a tentative job offer within 60 days after the close of the announcement. If you are selected, we may conduct a suitability/security background investigation.
Additional selections may be made beyond the total number of vacancies specified using this vacancy announcement. Further selections may also be made for additional organizational divisions and/or units within the duty location(s) listed above.
If you receive a conditional offer of employment for this position, you will be required to complete an Optional Form 306, Declaration for Federal Employment, and to sign and certify the accuracy of all information in your application, prior to entry on duty. False statements on any part of the application may result in withdrawal of offer of employment, dismissal after beginning work, fine, or imprisonment.
Any offers of employment made pursuant to this announcement will be consistent with all applicable authorities, including Presidential Memoranda, Executive Orders, interpretive U.S. Office of Management and Budget (OMB) and U.S. Office of Personnel Management (OPM) guidance, and Office of Management and Budget plans and policies concerning hiring. These authorities are subject to change.
The Federal hiring process is set up to be fair and transparent. Please read the following guidance.
Your resume: A resume describing your job-related qualifications is required and will be used for the purpose of reviewing your qualifications and determining what training, if any, would be required when placed. A resume in English is required. It must contain your full legal name, phone number, relevant work history including a detailed description of your duties, the dates you performed those duties (MM/DD/YY), your hours worked per week, job title, as well as series, grade, and salary (if applicable). For additional required items, see the link. It is recommended that you upload your resume as a PDF instead of a Word document to ensure document quality. Ensure that your uploaded resume is not a password protected document, to include Office 365 passwords. Limit your resume to no more than two pages. The USAJOBS database will not allow an applicant to submit an application that includes a resume over two pages.
Your transcripts: All applicants are required to submit a copy of your college transcript (unofficial is acceptable at this time; however, official copies will be required prior to entrance on duty) or a list of coursework with hours completed provided from the institution. If you are a current CBP employee within the position series announced, transcripts will not be required at the time of application; however, education will be verified if you are selected and you may be required to submit transcripts at that time. Education must be from an institution accredited by an agency recognized by the U.S. Department of Education. Education obtained from a foreign university or college is not creditable unless it has been evaluated by an organization that specializes in interpretation of education credentials. Note: If submitting documentation of an evaluation, transcripts are still required. For a listing of some accrediting agencies see NACES | Credentials Evaluations Provided by NACES Members. See https://www.accreditation.info/education-quality/usa-recognition.html for more information.
Are you claiming special priority selection rights under the Agency Career Transition Assistance Program (CTAP), Interagency Career Transition Assistance Program (ICTAP), or the Reemployment Priority List (RPL)? You must submit a separation notice; your most recent SF-50 (noting your current position, grade level and duty location); a copy of your most recent performance rating; an agency certification that you cannot be placed after injury compensation has been terminated; an OPM notification that your disability annuity has been terminated; or a Military Department of National Guard Bureau notification that you are retired under 5 U.S.C. 8337(h) or 8456; or RPL registration documentation.
Are you a current or former federal employee? If yes, it is recommended that you submit a copy of your SF-50(s) (Notification of Personnel Action) to support your experience. Examples of appropriate SF-50s include promotions, within-grade increases and accessions. Retired former federal employees are required to submit your retirement SF-50 and encouraged to submit your most recent annuity statement.
Are you a current or former political Schedule A, Schedule C, Non-career SES or Presidential Appointee employee? Submit a copy of your initial and termination SF-50s.
If you are relying on your education to meet qualification requirements:
Failure to provide all of the required information as stated in this vacancy announcement may result in an ineligible rating or may affect the overall rating.
To begin your online application, click "Apply Online" to create a USAJOBS account and follow the prompts or log in to your existing account. Your application packet must include a completed assessment questionnaire, a resume, and any applicable and/or required supporting documentation. Please see the "Required Documents" section for additional information. All application materials, including transcripts, must be in English.
Applications and supporting documentation will not be accepted by mail or email. The address below is for inquiries only. You may apply more than once, but the most recent application is the only one that will be used. You must submit your resume, your online questionnaire, and any supporting documents by 11:59 PM Eastern Time on 05/27/2026.
It is your responsibility to verify that any information entered or uploaded is received and is accurate. Human Resources will not modify or change any part of your application. Determining your eligibility and qualifications is dependent on the supporting documentation and information provided, which may impact your referral for further consideration. If a document is not legible, you will not be able to view it in your application and you must again upload it by the closing date
Please upload your resume under the "Resume" document type. Any other relevant supporting documents should be uploaded under their appropriate document types as mentioned above. Only resumes up to a total of two pages will be accepted. Applicants with resumes exceeding two pages will be removed from consideration. Do notsubmit documents as a PDF Portfolios.
DHS offers competitive salaries and an attractive benefits package, including: health, dental, vision, life, and long-term care insurance; retirement plan; Thrift Savings Plan [similar to a 401(k)]; Flexible Spending Account; Employee Assistance Program; personal leave days; and paid federal holidays. Other benefits may include: flexible work schedules; tuition reimbursement; transportation subsidies; uniform allowance; health and wellness programs; and fitness centers. DHS is committed to employee development and offers a variety of employee training and developmental opportunities. For more information, go to the DHS Careers website and select "Benefits." Disabled veteran leave will be available to any Federal employee hired on or after November 5, 2016, who is a veteran with a service-connected disability rating of 30 percent or more.
When U.S. Customs and Border Protection completes their selections, the remaining list of qualified candidates may be shared with hiring managers and Human Resources specialists at additional agencies who are hiring for similar positions. There is no guarantee of further consideration, and you can continue to explore other job opportunity announcements.
The Fair Chance to Compete for Jobs Act prohibits the Department of Homeland Security and its Components from requesting an applicant's criminal history record before that individual receives a conditional offer of employment. In accordance with 5 U.S. Code § 9202(c) and 5 C.F.R § 920.201 certain positions are exempt from the provisions of the Fair Chance to Compete Act. Applicants who believe they have been subjected to a violation of the Fair Chance to Compete for Jobs Act, may submit a written complaint to hc-recordsmgmt@cbp.dhs.gov.
Laboratories and Scientific Services
Please read entire announcement
Please apply online
Washington, DC 20229
US
Next steps
GS Salary: Visit this link to view the locality pay tables by geographic area. If you do not see your geographic area listed, select the "Rest of United States" pay table. Some positions fall under a special pay rate depending on the series, grade level and location of the position.Please visit this link to view special pay rate charts.
The open period for this job opportunity announcement may be extended to allow for a sufficient applicant pool.
Once the job opportunity announcement has closed, we will refer all minimally qualified applications to the hiring manager for further consideration and interviews. You will be notified by email when applications have been reviewed and referred to the hiring manager for consideration. Stay informed of changes to your application status by signing up for automatic email alerts with your USAJOBS account. We expect to make a tentative job offer within 60 days after the close of the announcement. If you are selected, we may conduct a suitability/security background investigation.
Additional selections may be made beyond the total number of vacancies specified using this vacancy announcement. Further selections may also be made for additional organizational divisions and/or units within the duty location(s) listed above.
If you receive a conditional offer of employment for this position, you will be required to complete an Optional Form 306, Declaration for Federal Employment, and to sign and certify the accuracy of all information in your application, prior to entry on duty. False statements on any part of the application may result in withdrawal of offer of employment, dismissal after beginning work, fine, or imprisonment.
Any offers of employment made pursuant to this announcement will be consistent with all applicable authorities, including Presidential Memoranda, Executive Orders, interpretive U.S. Office of Management and Budget (OMB) and U.S. Office of Personnel Management (OPM) guidance, and Office of Management and Budget plans and policies concerning hiring. These authorities are subject to change.
Fair and transparent
The Federal hiring process is set up to be fair and transparent. Please read the following guidance.
