74 junior scientist jobs at 26 companies in Berkeley, MO
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Formulation & Process Development Senior Scientist
Bridgeton, Missouri, United States
OnsiteFull Time
5+ YOEBS in chemistry/pharmaceutical science/chemical engineering or higher; 5+ years pharmaceutical experience desired; expertise in formulation and process development, DOE/QbD, cGMP/GLP/GCP, technology transfer, stability testing, and mentoring junior scientists.
Quality by Design (QbD), Design of Experiments (DOE)
3w
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Scientist 1
Hazelwood, Missouri, United States
$18/hr OnsiteFull Time
Bachelor's in Chemistry/Biochemistry or equivalent experience; ability to operate GC, HPLC, ICP; lab workstanding, PPE use; documentation and instrument maintenance skills.
GC, HPLC, ICP
2w
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Scientist II
St. Louis, Missouri, United States
OnsiteFull Time
2+ YOEDegree in chemistry/biochemistry (BS/MS/PhD) with 2+ years industry experience (PhD 2+/MS 3+/BS 5+), GMP analytical method development/validation experience, chromatography and biochemical technique proficiency, Empower/Chromeleon familiarity.
HPLC, UPLC, LC-MS, GC-MS, FTIR, SDS-PAGE, ELISA, Western Blot, Karl Fischer titration, Empower, Chromeleon
2w
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Senior Scientist
St. Louis, Missouri, United States
$106k-$158k/yr OnsiteFull Time
0+ YOERequires chemistry degree and 0–7+ years of relevant experience depending on education, advanced LC-MS instrumentation, biomolecule sample preparation, and effective independent and team communication.
LC-MS, Multiple Reaction Monitoring (MRM), Parallel Reaction Monitoring (PRM), UNIFI, BioPharma Finder, Mascot, ScaffoldPro, Thermo, Sciex, Waters, Agilent, MALDI-MS
1d
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Scientist Product Development
St. Louis, Missouri, United States
$73k-$103k/yr OnsiteFull Time
Bachelor’s degree in Food Science or a related discipline; willingness to travel 15%; experience planning trials, executing experiments, leading projects, and documenting technical results.
3w
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Field/Staff Scientist
Saint Louis or Columbia
OnsiteFull Time
1+ YOEBachelor's in environmental science/geology, 1+ years' related experience, Phase I ESA knowledge, project management, data analysis skills, valid driver's license, strong written/verbal communication.
1mo
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R&D Scientist
Affton, Missouri, United States
OnsiteFull Time
1+ YOEBachelor's in food science or related, 1–3 years R&D or food manufacturing experience preferred, laboratory and pilot-plant skills, Microsoft Office proficiency, able to lift 45 lb, domestic travel up to 10%.
Microsoft Word, Microsoft Excel, Microsoft Outlook
1mo
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HPLC Scientist
St. Louis or Chesterfield
OnsiteFull Time
Authorization to work in the US, experience with HPLC/SEC and gel-based assays, Bachelors or Masters in biological or chemical science, familiarity with lab documentation and attention to detail.
HPLC, SEC, UV-Vis, SOLO VPE, SDS Page, AGE, Western Blotting, CGE, Empower, OpenLabs
1w
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Data Scientist
St. Louis or United States
RemoteFull Time
2+ YOEMaster's degree in a statistical or mathematical field, 2+ years in predictive modeling, statistical inference, and deep learning, TensorFlow or PyTorch, R or Python, and presentation experience.
TensorFlow, PyTorch, R, Python, Linux/Unix, SQL
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Research Scientist
St. Louis, Missouri, United States
OnsiteFull Time
0+ YOEBS/MS in chemistry/biochemistry, bioanalytical experience (sample prep, LC-MS/MS, method development), GLP/GMP knowledge, troubleshooting, documentation, and strong communication and problem-solving skills.
LC-MS/MS
1w
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Data Scientist
Chesterfield, Missouri, United States
OnsiteFull Time
2+ YOERequires an MS in a quantitative field, 2+ years of data science experience, expert Python, strong SQL, and knowledge of statistics, econometrics, and machine learning. Five-plus years preferred.
Python, pandas, NumPy, scikit-learn, statsmodels, TensorFlow, SQL, Google Cloud Platform, AWS
3w
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Associate Scientist
St. Louis, Missouri, United States
OnsiteFull Time
0+ YOEBachelor's in chemistry or related, 0–4 years' lab or pharmaceutical/CDMO experience, experience with UV-Vis/FTIR/HPLC/GC/AA/titration, cGMP familiarity, strong communication and documentation skills.
UV-Vis, FTIR, HPLC, GC, Titration, AA, Microsoft Word, Microsoft Excel, Microsoft PowerPoint
1mo
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Data Scientist I
St. Louis, Missouri, United States
$70k-$110k/yr OnsiteFull Time
1+ YOE1+ years professional experience with practical machine learning, generative AI/LLMs, applied statistics, Python, data visualization, strong communication, US citizenship and ability to maintain a US security clearance, Bachelor's in a STEM field.
Python, Esri software, GIS, IoT, large language models
1mo
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Application Scientist I
Saint Louis or Hoffman Estates or Milwaukee
OnsiteFull Time
B.S. or higher in food science/chemistry/chemical engineering/pharmacy/biological sciences; 1–3 years NPD or technical-ingredient experience preferred; strong communication and analytical skills.
1mo
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Data Scientist 728
St. Louis, Missouri, United States
OnsiteFull Time
1+ YOEActive TS/SCI clearance, experience building statistical and ML models, geospatial and imagery data experience preferred, proficiency with Python and analytical toolchains, strong communication and requirements gathering skills.
Python, Pandas, NumPy, SciPy, Jupyter, SQL, PostgreSQL, PostGIS, Aurora, Oracle, Redis, Elasticache, AWS (S3, Athena, Glue, Lambda, ECS), Docker, GitLab CI/CD, Linux, GDAL, Rasterio, OGR, GeoPandas, ArcGIS, QGIS, Plotly, Matplotlib, Tableau, Microsoft Power BI
1mo
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Senior Analytical Scientist
St. Louis, Missouri, United States
$76k-$114k/yr OnsiteFull Time
1+ YOEBachelor/Master/PhD in chemistry or related field with industrial research experience, analytical method development and transfer experience, protein characterization techniques, instrumentation troubleshooting, and strong communication skills.
ELISA, SPR, Isoelectric Focusing, CE, UV-Vis, HPLC, GC, IC, UPLC, SEC, HILIC, Microsoft Word, Microsoft Excel, PowerPoint
4d
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Associate Scientist, Microbiology
Chesterfield or St. Louis or United States
$60k-$100k/yr OnsiteFull Time
0+ YOEBachelor's degree in microbiology, biochemistry, biology, or related field plus 0–2 years of experience; requires documentation, communication, organizational, laboratory, GMP, and safety skills.
PCR, Laboratory Information Management Systems (LIMS), ChatGPT, Gemini, Claude, Microsoft Copilot
1mo
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Environmental Scientist - Fenton, MO
Fenton, Missouri, United States
FieldFull Time
0+ YOEBachelor's in science/engineering, HAZWOPER 40-hour and 8-hour refresher, ability to collect and analyze environmental samples, valid driver's license, pass background and motor vehicle checks.
XRF spectrometer, MS Word, Microsoft Excel
3w
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Medical Lab Scientist
Swansea, Illinois, United States
$20-$26/hr OnsiteFull Time
1+ YOEBachelor's or associate degree in medical/biological/chemical science, ASCP/NCA or equivalent certification, 1+ year clinical lab experience preferred, molecular technique experience preferred, strong communication and attention to detail.
1mo
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Technical Application Scientist
Hazelwood, Missouri, United States
$80k-$100k/yr OnsiteFull Time
2+ YOEMaster's or equivalent, 2+ years field agronomy experience, experience with biological product application and seed treatment, strong written and oral communication, authorized to work in the US.
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