AST, Life Sciences Research
National Aeronautics and Space Administration
Serves as a Toxicologist in the Environmental Science Branch of the Human Health and Science Directorate who will serve as a credible and reliable subject matter expert in support of diverse assigned operational and research objectives associated with crew health protection from chemical stressors during spaceflight.
To receive consideration, you must submit a resume and answer NASA-specific questions. The NASA questions appear after you submit your resume and are transferred to the NASA web site. If you successfully apply, USAJOBS will show your application status as 'Received'. If your status is 'Application Status Not Available', you have not successfully applied. Do not rely on a USAJOBS email to confirm successful application. Only an email from NASA confirms a successful application.
Responsibilities Serves as a Toxicologist in the Environmental Science Branch of the Human Health and Science Directorate who will serve as a credible and reliable subject matter expert in support of diverse assigned operational and research objectives associated with crew health protection from chemical stressors during spaceflight.
- With technical supervision, reviews and assesses the toxicological hazard posed by proposed payloads and system chemicals that are relevant to spaceflight missions.
- Evaluates scientific literature data on chemicals in order to provide meaningful toxicological context to potential crew exposure scenarios, often relying of limited technical precedence and faced with significant uncertainties.
- Assesses environmental monitoring data in order to characterize risks from spaceflight chemicals. Synthesizes complex data in order to succinctly and accurately communicate crew health implications to stakeholders.
- Prepares hazard assessments and maintains database of toxic chemicals that fly aboard space vehicles.
- Researches, recommends, and defends health-based crew exposure limits for spaceflight air and water, while incorporating technical feedback from the senior toxicologist. Prepares documentation and manuscripts for publication.
- Serves as a toxicological resource in supporting assigned meetings and working groups with outside stakeholders, including international partners, environmental control engineers, medical community representatives, and other relevant staff.
- Provides on-call toxicological support via telephone 24 hours per day for spaceflight operations, as necessary and directed by the senior toxicologist and management.
- Assists senior toxicologist in planning and coordinating scientific projects in areas where new techniques and approaches to addressing environmental challenges of human spaceflight are needed.
- Delivers effective oral and written communication to various audiences, including both technical staff and managers.
- Supports environmental research projects on the toxicity of key spaceflight chemicals in order to identify acceptable crew health exposure limits and reduce uncertainties and risk.
- Represents toxicological interests and fulfills assigned responsibilities in the absence of the senior toxicologist.
- Serves as an overall scientific resource through diverse individual assignments and as a member of multidisciplinary teams at the discretion of the Environmental Sciences Branch Chief.
Supervisory status No
Promotion Potential 13
Who May Apply This job is open to… U.S. citizens and U.S. nationals Questions? This job is open to 1 group.
- Job family (Series)
0401 General Natural Resources Management And Biological Sciences
Conditions of Employment
- Occasional travel may be required
- Selectee must complete a financial disclosure statement
- Position subject to pre-employment background investigation
Qualifications Applicant must have one year of specialized experience at the next lower grade, which has equipped the applicant with the particular competencies needed to successfully perform the duties of the position described above.
Specialized experience is defined as professional working experience that included the following:
- Experience in assessing the toxicity of chemicals, and chemical mixtures, often without the aid of established exposure limits or other references.
- Knowledge of fundamental toxicological principles as they apply to exposure and risk assessment.
- Ability to balance multiple assignments and in establishing and maintaining priorities.
- Experience in conducting complex risk assessments or research projects.
- Knowledge of risk communication principles and skill in delivering presentations in a team environment that may include diverse audiences, personalities, and skill sets.
- Knowledge of basic environmental chemistry principles.
- Experience in demonstrating a balanced risk perspective that tailors the response recommendation to the degree of potential risk.
- Ability to discern when to seek managerial guidance and direction, and when to take appropriate initiative to move projects forward.
- Ph.D highly desired.
- Diplomat of the American Board of Toxicology certification strongly preferred.
You may lose consideration for the position if your application does not include all the information requested on the vacancy announcement. The USAJOBS Resume must include a clear and detailed narrative description, in your own words, of how you met the required SPECIALIZED experience. Experiences copied from a position description, vacancy announcement or other reference material constitutes plagiarism and may result in disqualification and losing consideration for the job.
Education Basic Education Requirement: A bachelor's degree from an accredited college or university with major study in engineering, physical science, mathematics, life sciences, computer science, or other field of science.
Degrees in engineering technology are not considered to be qualifying for this position.
You must indicate your major as well as your degree in order to receive full consideration.
Additional information Any applicant tentatively selected for this position may be required to undergo a pre-employment background investigation. Individuals who have special priority selection rights under the Agency Career Transition Assistance Program (CTAP) or the Interagency Career Transition Assistance Program (ICTAP) must be well qualified for the position to receive consideration for special priority selection. See 'How You Will Be Evaluated' for definition of well qualified. Federal employees seeking CTAP/ICTAP consideration must indicate their eligibility when applying for a position. The USAJOBS resume asks you to identify your ICTAP eligibility; the NASA Supplemental Information asks you to identify your CTAP eligibility. If you are selected for the position, you must be prepared to submit proof that you meet the requirements for CTAP/ICTAP. This includes a copy of the agency notice, a copy of their most recent Performance Rating and a copy of their most recent SF-50 noting current position, grade level, and duty location.
As a condition of employment, male applicants born after December 31, 1959, must certify that they have registered with the Selective Service System, or are exempt from having to do so under the Selective Service Law. In order to receive preference in hiring, you must clearly identify your claim for veterans preference on your resume.
NASA's Applicant Guide provides the information needed to assist you in determining whether or not you can claim 5 or 10 point veterans preference. You should not submit documents to prove your eligibility for veterans preference at this time. However, you must be prepared to submit proof of veterans preference (DD-214, and, if claiming 10-point preference, SF-15 plus proof required by that form) as requested by the Human Resources Office. Veterans preference will only be considered based on what is supported For instance, if you claim 10-point preference, but are only able to document 5-point preference, you will be considered accordingly. If you fail to provide the required documents within the stated time period, we may withdraw a job offer and/or remove you from further consideration.
Your USAJOBS account asks you to assign a name to each of your resumes. When you apply to a NASA position, we will show you the text of the resume you have submitted, but we do not maintain the name you have assigned to that resume. If you wish to keep track of that information, we recommend you make note of it at the time you apply.
Fair Employment Opportunities for Applicants
NASA Credit for National Service
As identical vacancies are identified, additional selections may be made.
The payment of relocation expenses is not authorized.
How You Will Be Evaluated You will be evaluated for this job based on how well you meet the qualifications above.
NASA uses an automated system (Resumix) that matches the competencies extracted from your resume to the competencies identified by the selecting official for the position. Based on the competencies you match, you are placed in one of three categories identified as 90, 80, or 70 pt. quality categories, which are defined as:
90 pt. Category - Tentatively meets (until subsequent confirmation upon referral) the basic qualification requirements identified in the vacancy announcement and has experience in the same or similar job that has demonstrated superior proficiency in the primary requirements of the position.
80 pt. Category - Tentatively meets (until subsequent confirmation upon referral) the basic qualification requirements identified in the vacancy announcement and demonstrates satisfactory proficiency in the primary requirements of the position.
70 pt. Category - Fails to meet criteria described in the 80 pt. category.
Additional application guidance is available in NASA's Applicant Guide .
Information for Veterans : The Category Rating Process protects the rights of veterans by placing them ahead of non-preference eligibles within each category. Preference eligibles who meet qualification requirements and have a compensable service-connected disability of at least 10 percent must be listed at the top of the highest quality category, except when the position being filled is scientific or professional at the GS-09 grade level or higher.
For the purpose of the Career Transition Assistance Program (CTAP) and the Interagency Career Transition Assistance Program (ICTAP), candidates rated in the top quality category are considered well-qualified
Background checks and security clearance Security clearance Not Applicable
- Required Documents
NASA's application process has been specifically developed to ensure that we only ask you for the information we absolutely need to evaluate your qualifications and eligibility. In order to apply for this position, you only need to submit your resume and answer the screening questions and supplemental information. No additional documentation is accepted at the time of application. (For example you need not submit narrative 'KSA' statements; they are not required and will not be evaluated.) In this way we allow you to focus on preparing a resume that best describes your background and abilities. For assistance in preparing your resume, consult the
. Nothing further is required until requested by the Human Resources Office. At that point, we may ask you to submit documentation to support statements made in your resume. For example, we may ask you to provide academic transcripts or proof of Federal employment status. If you are claiming veterans' preference, we may ask you to submit proof of veterans preference (DD-214, and, if claiming 10-point preference, SF-15 plus proof required by that form). If you fail to provide the required documents within the stated time period, we may withdraw a job offer and/or remove you from further consideration.
If you are relying on your education to meet qualification requirements: Education must be accredited by an accrediting institution recognized by the U.S. Department of Education in order for it to be credited towards qualifications. Therefore, provide only the attendance and/or degrees from schools accredited by accrediting institutions recognized by the U.S. Department of Education .
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.
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.
- Benefits for federal employees
- Healthcare insurance
- Pay and leave
Review our 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.
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