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Posted: February 10, 2026 (0 days ago)

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Interdisciplinary Physical Scientist Chemist Biologist

Defense Threat Reduction Agency

Department of Defense

Fresh

Location

Salary

$89,508 - $138,370

per year

Closes

March 9, 2026More DOD jobs →

GS-12 Pay Grade

Base salary range: $74,441 - $96,770

Typical requirements: 1 year specialized experience at GS-11. Advanced degree + significant experience.

Note: Actual salary includes locality pay (15-40%+ depending on location).

Job Description

Summary

This job involves serving as an expert on chemical and biological weapons, their effects, and defense strategies within the U.S.

Department of Defense, focusing on research, emergency response, and policy advice to counter threats.

The role requires deep scientific knowledge to guide prevention, protection, response, and recovery from incidents, including training and site exploitation planning.

It's a great fit for experienced scientists or engineers with a background in physical or biological sciences who are passionate about national security and threat reduction.

Key Requirements

  • One year of specialized experience at GS-11 level (or equivalent) in identifying, preventing, protecting from, responding to, and recovering from chemical and biological (C/B) threats or incidents
  • Expertise in scientific principles of C/B weapons, effects, defensive measures, and related research, development, test, and evaluation programs
  • Experience providing guidance on emergency response capabilities, including use of C/B detectors and detection theory for threat characterization and response optimization
  • Ability to identify C/B technological and threat trends and provide recommendations for site exploitation planning and execution
  • Bachelor's degree in physical science, engineering, mathematics, or biological sciences, including at least 24 semester hours in physical science or related engineering science (or equivalent combination of education and experience)
  • For GS-13: Leading coordination, analysis, and integration of activities; providing expert advice to senior officials on C/B threats, even with incomplete information

Full Job Description

This position is part of the Defense Threat Reduction Agency.

The incumbent will be responsible for recognized expert in the scientific principles of chemical and biological C/B weapons, weapons effects, biological effects, and weapons defensive measures, and associated research, development, test and evaluation science and technology programs.

Serves as an expert for emergency response capabilities, programs, Science & Technology, operations, and U.S. policies addressing the C/B threat.

You may qualify at the GS-12, if you fulfill the following qualifications: A.

One year of specialized experience equivalent to the GS-11 grade level in the Federal service as listed below: Utilizing scientific and technical expertise to identify, prevent, protect from, respond to, and recover from small and/or large-scale Chemical and Biological (C/B) threats or incidents; Providing guidance regarding emergency response and program capabilities, including experience in the use of and application of (C/B) detectors and detection theory to characterize C/B threat agents and optimize C/B response training, exercises, and incidents; and/or Identifying C/B technological trends, to provide recommendations to a response organization, leadership, units, regarding C/B site exploitation planning and execution.

(Experience must be clearly demonstrated in your resume.) You may qualify at the GS-13, if you fulfill the following qualifications: A.

One year of specialized experience equivalent to the GS-12 grade level in the Federal service as listed below: Leading the coordination, analysis, and integration of conflicting activities and developing technical and programmatic strategies in a Science and Technology business area of emphasis; Utilizing scientific and technical expertise to senior officials and crisis response leaders to identify, prevent, protect from, respond to, and recover from small and/or large-scale Chemical and Biological (C/B) threats or incidents; Providing advice on a rapid basis even in the absence of complete information; Applying expert guidance, without supervision, regarding emergency response and program capabilities, including experience in the use of and application of (C/B) detectors and detection theory to characterize C/B threat agents and optimize C/B response training, exercises, and incidents; and/or Identifying C/B technological and threat trends, to provide authoritative advice and recommendations to a response organization, leadership, units, regarding C/B site exploitation planning and execution.

(Experience must be clearly demonstrated in your resume.) 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.

In addition to meeting qualifications, your application package must reflect the applicable experience to meet the Individual Occupational Requirements for the 1301 series as listed below: 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 Combination of education and experience -- education equivalent to one of the majors shown in Degree above that included at least 24 semester hours in physical science and/or related engineering science, plus appropriate experience or additional education.

In addition to meeting qualifications, your application package must reflect the applicable experience to meet the Individual Occupational Requirements for the 0401 series as listed below: 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.

In addition to meeting qualifications, your application package must reflect the applicable experience to meet the Individual Occupational Requirements for the 1320 series as listed below: Degree: 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 of physics.

OR Combination of education and experience -- course work equivalent to a major as shown in A above, including at least 30 semester hours in chemistry, supplemented by mathematics through differential and integral calculus, and at least 6 semester hours of physics, plus appropriate experience or additional education.

Major Duties:

This position is being filled under the memorandum from the Under Secretary of Defense for Personnel and Readiness (USD(P&R)) "Expansion of Direct Hire Authority for Certain Personnel of the Department of Defense," dated October 15, 2021.

As an Interdisciplinary Physical Scientist Chemist Biologist at the GS-0401/1301/1320-12/13 some of your typical work assignments may include: Participate as a member of the Technical Support Group (TSG) to deploy in support of Combatant Commander and other federal D/As in C/B emergency response events and training.

Provide authoritative advice and recommendations, as a recognized expert in C/B weapons and detection, on chemical/biological operational and S&T programs.

Provide on-site training, operational, scientific, and technical support to command sponsored technical training and exercises and other Joint Chief of Staff/theater sponsored exercises.

Serve as the DTRA focal point for providing program planning, review, and oversight of specific short duration R&D programs related to chemical/biological (C/B) matters.

Integrate requirements for the support of chemical/biological event response into the DTRA Operations Center, Department of Defense (DoD) point of contacts for implementation of crisis action/emergency response within the C/B area.

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Posted on USAJOBS: 2/10/2026 | Added to FreshGovJobs: 2/11/2026

Source: USAJOBS | ID: DTRA-26-12882952-DH