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Performs professional microbiological work including study of bacteria, viruses, fungi, and other microorganisms.
2025 Base Pay (before locality adjustment)
| Grade | Step 1 | Step 2 | Step 3 | Step 4 | Step 5 | Step 6 | Step 7 | Step 8 | Step 9 | Step 10 |
|---|---|---|---|---|---|---|---|---|---|---|
| GS-5 | $34,454 | $35,603 | $36,752 | $37,901 | $39,050 | $40,199 | $41,348 | $42,497 | $43,646 | $44,786 |
| GS-7 | $42,679 | $44,102 | $45,525 | $46,948 | $48,371 | $49,794 | $51,217 | $52,640 | $54,063 | $55,486 |
| GS-9 | $52,205 | $53,945 | $55,685 | $57,425 | $59,165 | $60,905 | $62,645 | $64,385 | $66,125 | $67,865 |
| GS-11 | $63,163 | $65,268 | $67,373 | $69,478 | $71,583 | $73,688 | $75,793 | $77,898 | $80,003 | $82,108 |
| GS-12 | $75,706 | $78,229 | $80,752 | $83,275 | $85,798 | $88,321 | $90,844 | $93,367 | $95,890 | $98,422 |
| GS-13 | $90,025 | $93,026 | $96,027 | $99,028 | $102,029 | $105,030 | $108,031 | $111,032 | $114,033 | $117,034 |
| GS-14 | $106,382 | $109,928 | $113,474 | $117,020 | $120,566 | $124,112 | $127,658 | $131,204 | $134,750 | $138,296 |
Note: These are 2025 base pay rates. Most federal employees receive locality pay adjustments of 15-40%+ depending on location.
Official OPM qualification standards for GS-0403
Degree: microbiology; or biology, chemistry, or basic medical science that included at least 20 semester hours in microbiology and other subjects related to the study of microorganisms, and 20 semester hours in the physical and mathematical sciences combining course work in organic chemistry or biochemistry, physics, and college algebra, or their equivalent.
OR
Combination of education and experience: courses equivalent to a major in microbiology, biology, chemistry, or basic medical science that included courses as shown in A above, plus appropriate experience or additional education.
Graduate Education: Microbiology, or specific area of study such as bacteriology, virology, mycology, algology, protozoology, parasitology, immunology, serology, microbial genetics, or soil microbiology; or specific applied fields of microbiology such as clinical and public health microbiology, food tech-nology, production processes, industrial fermentation, pollution, etc. Graduate study in related fields such as experimental pathology, infectious diseases, epidemiology, biochemistry, animal or plant physiology, genetics, plant pathology, and insect disease control, may also be pertinent, provided it has direct application to microbiological work.
Evaluation of Education: Microbiology is a broad field of science encompassing a number of scientific disciplines or areas of science, the fields in which this science is applied, and related fields where the work is concerned with or involves microbiology. The scientific disciplines or areas of this science include bacteriology, immunology, serology, algology, mycology, parasitology, protozoology, rickettsi-ology, tissue culture, virology, and similar disciplines or areas of science. The applied fields include environmental, food, dairy, soil, industrial, public health, clinical, and agricultural microbiology, and similar areas in which microbiology is applied. Related fields include taxonomy and systematics, plant, animal, or human physiology or pathology, infectious diseases, epidemiology, ecology, and similar areas of science where the work is directly related or applies to microbiology. Except where the course work deals with a limited and specific segment of the science, where it might be limited in usefulness, most of the work, including that dealing with the development and use of microbiological methods, procedures, and techniques, is qualifying. In interpreting the substantive value of the course work, credit may be given for courses in related fields, depending on the degree to which the courses are related to micro-biological work.
Evaluation of Experience: For positions at GS-9 that involve a substantial amount of work in a specific specialized area or applied field of microbiology, at least 6 months of the experience must either have been in the appropriate area of specialization or applied field of microbiology, or have direct application in the area for which the applicant is being considered. For the GS-11 and higher grade levels of such specialized positions, the experience must have been sufficiently specialized to insure adequate familiarity with the area of specialization or applied field of microbiology, or have direct application in the area for which the applicant is being considered.
Alternate requirement: For GS-14 clinical and public health microbiology positions, certification by the American Board of Medical Microbiology/American Board of Medical Laboratory Immunology, or election to Fellowship in the American Academy of Microbiology fully meets the experience requirement for such positions.
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Step-by-step guide to landing a federal microbiology position
Read the OPM qualification standards above to understand the education and experience requirements for your target grade level.
Match your years of experience and education to the appropriate GS grade. Generally: GS-5 (entry), GS-7/9 (junior), GS-11/12 (journey), GS-13+ (senior).
Collect your DD-214, SF-50 (if applicable), transcripts, certifications, and any training records that demonstrate your qualifications.
Create a detailed federal resume (2-5 pages) that addresses every qualification requirement. Include hours worked per week, supervisor contact info, and specific accomplishments.
Search for open positions, carefully answer all assessment questions, and submit your application before the closing date.
Understanding of microorganisms and their properties.
Proficiency in microbiological techniques.
Ability to design and conduct microbiological studies.
Knowledge of biosafety levels and procedures.
Ability to analyze and interpret microbiological data.
Skill in documenting research findings.
💡 Use these phrases to help ATS systems and human recruiters find your qualifications.
A GS-0403 Microbiologist studies microorganisms including bacteria, viruses, fungi, and parasites. Federal microbiologists work at CDC, NIH, FDA, and USDA conducting research on infectious diseases, food safety, and biotechnology.
Microbiologists earn between $42,679 (GS-7 Step 1) and $138,296 (GS-14 Step 10) under the 2025 GS pay scale. Most positions are GS-11/12/13, earning $63,163-$117,034 annually.
GS-0403 positions require a degree in microbiology or biological science with specific microbiology coursework. Higher grades require progressively more specialized laboratory and research experience.
Military experience cannot substitute for required microbiology education. However, veterans with microbiology degrees who served in medical or CBRN roles have applicable laboratory experience.
The career ladder follows GS-7/9/11/12/13/14 intervals. Entry-level microbiologists conduct laboratory work. Senior microbiologists lead research programs and advise on policy.
Search USAJOBS.gov for Microbiologist or 0403 series. CDC, NIH, FDA, and USDA are major employers. Your federal resume should detail laboratory skills and research experience.
Create a tailored federal resume that meets OPM standards.