Plan, direct, and execute complex laboratory studies and experiments to evaluate the pharmacological, biological, and toxicological effects of military-unique compounds and chemicals of interest.
Develop, adapt, and validate advanced testing procedures and physiological exposure models while establishing and enforcing Good Laboratory Practice (GLP) protocols and Standard Operating Procedures (SOPs).
Analyze, interpret, and translate complex qualitative and quantitative experimental data, synthesizing findings into peer-reviewed manuscripts and technical reports to support evidence-based public health decisions.
Author and review comprehensive toxicity evaluations and risk assessments to safeguard military personnel and civilian staff from acute and chronic occupational and environmental exposures.
Perform in-depth scientific literature reviews to identify critical toxicity data gaps, establishing health-protective recommendations and safe exposure guidelines for materials proposed for operational use.
Initiate and draft research study proposals to expand analytical capabilities, resolve toxicological uncertainties, and advance cross-functional projects through interagency collaboration.
Serve as a technical authority representing the organization at scientific conferences, panels, and interagency working groups, delivering executive briefings on chemical processes, toxicology findings, and risk mitigations.
This position may require the incumbent to work weekends and/or holidays.
Qualifications
Who May Apply: US Citizens
In order to qualify, you must meet the education and/or experience requirements described below. 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). You will receive credit for all qualifying experience, including volunteer experience. Your resume must clearly describe your relevant experience; if qualifying based on education, your transcripts will be required as part of your application. Additional information about transcripts is in this document.
Basic Requirements for Biologist (0401)
Degree: biological sciences, agriculture, natural resource management, chemistry, or related disciplines appropriate to the position.
OR
Combination of education and experience: Courses equivalent to a major, as shown in A above, plus appropriate experience or additional education.
Basic Requirements for Toxicologist (0415)
Degree: toxicology; or an appropriate discipline of the biological, medical, or veterinary sciences that included at least 30 semester hours in chemistry, biochemistry, or physiology, and 12 semester hours in toxicology.
SPECIALIZED EXPERIENCE FOR GS-11: One year of specialized experience which includes Performing standard toxicological tests measuring the biological exposure impacts of chemical compounds; AND Gathering scientific research data supporting the development of occupational safety guidelines; AND Preparing draft technical reports summarizing experimental laboratory findings; AND Participating in scientific meetings representing project teams during technical information exchanges. This definition of specialized experience is typical of work performed at the second lower grade/level position in the federal service (GS-09).
OR
Education: Ph.D. or equivalent doctoral degree or 3 full years of progressively higher level graduate education leading to such a degree in a field which demonstrates the knowledge, skills, and abilities necessary to do the work of the position, such as: Biologist: Microbiology, Ecology, Environmental Science, Biology, or Biochemistry Toxicologist: Toxicology, Pharmacology, Veterinary Medicine, Biochemistry, Physiology, or Environmental Science.
OR
Combination of Education and Experience: A combination of education and experience may be used to qualify for this position as long as the computed percentage of the requirements is at least 100%. To compute the percentage of the requirements, divide your total months of experience by 12. Then divide the total number of completed graduate semester hours (or equivalent) beyond the second year (total graduate semester hours minus 36) by 18. Add the two percentages.
Specialized Experience for GS-12: One year of specialized experience which includes Conducting toxicological experiments evaluating the physiological exposure impacts of specialized chemical compounds; AND Drafting technical risk assessments establishing safety guidelines plus occupational exposure limits; AND Assisting with research proposals identifying scientific data gaps through collaborative laboratory projects; AND Presenting scientific findings serving as a technical representative before professional working groups. This definition of specialized experience is typical of work performed at the next lower grade/level position in the federal service (GS-11).
Some federal jobs allow you to substitute your education for the required experience in order to qualify. For this job, you must meet the qualification requirement using experience alone--no substitution of education for experience is permitted.
Specialized Experience for GS-13: One year of specialized experience which includes Directing complex toxicological investigations evaluating the physiological exposure impacts of specialized chemical compounds; AND Authoring comprehensive risk assessments establishing occupational safety guidelines plus protective exposure limits; AND Formulating research study proposals resolving critical scientific data gaps through collaborative interagency projects; AND Defending scientific findings serving as a subject matter expert before external technical working groups. This definition of specialized experience is typical of work performed at the next lower grade/level position in the federal service (GS-12).
Some federal jobs allow you to substitute your education for the required experience in order to qualify. For this job, you must meet the qualification requirement using experience alone--no substitution of education for experience is permitted.
Education
FOREIGN EDUCATION: If you are using education completed in foreign colleges or universities to meet the qualification requirements, you must show the education credentials have been evaluated by a private organization that specializes in interpretation of foreign education programs and such education has been deemed equivalent to that gained in an accredited U.S. education program; or full credit has been given for the courses at a U.S. accredited college or university. For further information, visit: https://sites.ed.gov/international/recognition-of-foreign-qualifications/.
Additional information
Male applicants born after December 31, 1959 must complete a Pre-Employment Certification Statement for Selective Service Registration.
You will be required to provide proof of U.S. Citizenship.
This position requires a 1 year probationary period during which the agency evaluates your fitness and whether your continued employment advances the public interest. In making this determination, the agency may consider your performance and conduct; agency needs and interests; whether your continued employment supports organizational or Government goals; and whether it promotes the efficiency of the Federal service. Continued employment requires written certification that it advances the public interest.
Direct Deposit of Pay is required.
Selection is subject to restrictions resulting from Department of Defense referral system for displaced employees.
Recruitment or relocation incentives MAY be authorized for highly qualified candidates.
Multiple positions may be filled from this announcement.
Salary includes applicable locality pay or Local Market Supplement.
If you have retired from federal service and you are interested in employment as a reemployed annuitant, see the information in the Reemployed Annuitant information sheet.
Payment of Permanent Change of Station (PCS) costs is not authorized, based on a determination that a PCS move is not in the Government interest.
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.
You will be evaluated for this job based on how well you meet the qualifications above.
Once the announcement has closed, a review of your application package (resume, supporting documents, and responses to the questionnaire) will be used to determine whether you meet the qualification requirements listed on this announcement. Please follow all instructions carefully when applying, errors or omissions may affect your eligibility.
If, after reviewing your resume and/or supporting documentation, a determination is made that you have inflated your qualifications and/or experience, you may lose consideration for this position.
Veterans and Military Spouses will be considered along with all other candidates.
The documents you are required to submit vary based on whether or not you are eligible for preference in federal employment. A complete description of preference categories and the associated required documents is in the Applicant Checklist for Public Announcements.
As described above, your complete application includes your resume, your responses to the online questionnaire, and documents which prove your eligibility to apply. If you fail to provide these documents, you will be marked as having an incomplete application package and you will not be considered any further.
1. Your resume:
Your resume must be two pages or less and must support the specialized experience described in this announcement. Resumes exceeding two pages will be removed from consideration.
For each relevant work experience, make sure you include the employer's name, job title, start and end dates (include month and year), for qualifications purposes, the number of hours worked per week, and a brief description that show you can perform the tasks at the required level listed in the job announcement. If your resume does not contain this information, your application may be marked as incomplete, and you may not receive consideration for this position.
Use plain language. Avoid using acronyms and terms that are not easily understood. The hiring agency will not make assumptions about what's in your resume.
If your resume includes a photograph or other inappropriate material or content, it will not be used to make eligibility and qualification determinations, and you may not be considered for this vacancy.
This position has an individual occupational requirement and/or allows for substitution of education for experience. If you meet this requirement based on education you MUST submit a copy of your transcript with your application package or you will be rated ineligible. See: Transcripts and Licenses.
NOTE: Documents submitted as part of the application package, to include supplemental documents, may be shared beyond the Human Resources Office. Some supplemental documents such as military orders and marriage certificates may contain personal information for someone other than you. You may sanitize these documents to remove another person's personal information before you submit your application. You may be asked to provide an un-sanitized version of the documents if you are selected to confirm your eligibility.
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 apply for this position, you must complete the online questionnaire and submit the documentation specified in the Required Documents section below.
The complete application package must be submitted by 11:59 PM (EST) on 09/08/2026to receive consideration.
To begin, click Apply to access the online application. You will need to be logged into your USAJOBS account to apply. If you do not have a USAJOBS account, you will need to create one before beginning the application (https://apply.usastaffing.gov/ViewQuestionnaire/13052059).
Follow the prompts to select your resume and/or other supporting documents to be included with your application package. As a reminder, your resume must be two pages or less and must support the specialized experience described in this announcement. Resumes exceeding two pages will be removed from consideration. For additional information, refer to the 'Required Documents' section.
You will have the opportunity to upload additional documents to include in your application before it is submitted. Your uploaded documents may take several hours to clear the virus scan process.
After acknowledging you have reviewed your application package, complete the Include Personal Information section as you deem appropriate and click to continue with the application process.
You will be taken to the online application which you must complete in order to apply for the position. Complete the online application, verify the required documentation is included with your application package, and submit the application. Your resume selected in USAJOBS will be included, but you must re-select other documents from your USAJOBS account or your application may be incomplete.
It is your responsibility to verify that your application package (resume, supporting documents, and responses to the questionnaire) is complete, accurate, and submitted by the closing date. Uploaded documents may take up to one hour to clear the virus scan.
Additional information on how to complete the online application process and submit your online application may be found on the USA Staffing Applicant Resource Center.
KF-DDAAFC DHA HQs
DO NOT MAIL
Falls Church, VA 22042
US
Next steps
If you provided an email address, you will receive an email message acknowledging receipt of your application. Your application package will be used to determine your eligibility, qualifications, and quality ranking for this position. If you are determined to be ineligible or not qualified, your application will receive no further consideration.
The Federal hiring process is set up to be fair and transparent. Please read the following guidance.
The documents you are required to submit vary based on whether or not you are eligible for preference in federal employment. A complete description of preference categories and the associated required documents is in the Applicant Checklist for Public Announcements.
As described above, your complete application includes your resume, your responses to the online questionnaire, and documents which prove your eligibility to apply. If you fail to provide these documents, you will be marked as having an incomplete application package and you will not be considered any further.
1. Your resume:
Your resume must be two pages or less and must support the specialized experience described in this announcement. Resumes exceeding two pages will be removed from consideration.
For each relevant work experience, make sure you include the employer's name, job title, start and end dates (include month and year), for qualifications purposes, the number of hours worked per week, and a brief description that show you can perform the tasks at the required level listed in the job announcement. If your resume does not contain this information, your application may be marked as incomplete, and you may not receive consideration for this position.
Use plain language. Avoid using acronyms and terms that are not easily understood. The hiring agency will not make assumptions about what's in your resume.
If your resume includes a photograph or other inappropriate material or content, it will not be used to make eligibility and qualification determinations, and you may not be considered for this vacancy.
This position has an individual occupational requirement and/or allows for substitution of education for experience. If you meet this requirement based on education you MUST submit a copy of your transcript with your application package or you will be rated ineligible. See: Transcripts and Licenses.
NOTE: Documents submitted as part of the application package, to include supplemental documents, may be shared beyond the Human Resources Office. Some supplemental documents such as military orders and marriage certificates may contain personal information for someone other than you. You may sanitize these documents to remove another person's personal information before you submit your application. You may be asked to provide an un-sanitized version of the documents if you are selected to confirm your eligibility.
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 apply for this position, you must complete the online questionnaire and submit the documentation specified in the Required Documents section below.
The complete application package must be submitted by 11:59 PM (EST) on 09/08/2026to receive consideration.
To begin, click Apply to access the online application. You will need to be logged into your USAJOBS account to apply. If you do not have a USAJOBS account, you will need to create one before beginning the application (https://apply.usastaffing.gov/ViewQuestionnaire/13052059).
Follow the prompts to select your resume and/or other supporting documents to be included with your application package. As a reminder, your resume must be two pages or less and must support the specialized experience described in this announcement. Resumes exceeding two pages will be removed from consideration. For additional information, refer to the 'Required Documents' section.
You will have the opportunity to upload additional documents to include in your application before it is submitted. Your uploaded documents may take several hours to clear the virus scan process.
After acknowledging you have reviewed your application package, complete the Include Personal Information section as you deem appropriate and click to continue with the application process.
You will be taken to the online application which you must complete in order to apply for the position. Complete the online application, verify the required documentation is included with your application package, and submit the application. Your resume selected in USAJOBS will be included, but you must re-select other documents from your USAJOBS account or your application may be incomplete.
It is your responsibility to verify that your application package (resume, supporting documents, and responses to the questionnaire) is complete, accurate, and submitted by the closing date. Uploaded documents may take up to one hour to clear the virus scan.
Additional information on how to complete the online application process and submit your online application may be found on the USA Staffing Applicant Resource Center.
KF-DDAAFC DHA HQs
DO NOT MAIL
Falls Church, VA 22042
US
Next steps
If you provided an email address, you will receive an email message acknowledging receipt of your application. Your application package will be used to determine your eligibility, qualifications, and quality ranking for this position. If you are determined to be ineligible or not qualified, your application will receive no further consideration.
Fair and transparent
The Federal hiring process is set up to be fair and transparent. Please read the following guidance.
