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20 scientist i jobs at 11 companies in Missouri

1mo
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QC - Lead Scientist I
Kansas City, Missouri, United States
OnsiteFull Time
Catalent
Catalent: Global provider of drug development and manufacturing solutions.
5+ YOERequires advanced life/physical science degree plus substantial related experience (5+ years), ability to perform HPLC/GC/FTIR/UV-Vis/Karl Fischer/Polarimetry and wet chemistry, author and review technical documents, and train others.
HPLC, GC, Karl Fischer, FTIR, UV-Vis, Polarimetry, wet chemistry
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2mo
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Scientist I - Mass Spec Development (LC-MS/MS)
Kansas City, Missouri, United States
OnsiteFull Time
KCAS Bio
KCAS Bio: Provides bioanalytical and biomarker services for drug development.
2+ YOE2+ years LC-MS/MS experience; degree in chemistry/biochemistry/engineering; knowledge of bioanalytical sample prep; documentation in regulated environments.
LC-MS/MS, Mass Spectrometry, Liquid Chromatography
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1mo
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Data Scientist I
St. Louis, Missouri, United States
$70k-$110k/yr OnsiteFull Time
Esri
Esri: Developing software for digital mapping and spatial data analysis.
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
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1mo
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Application Scientist I
Saint Louis or Hoffman Estates or Milwaukee
OnsiteFull Time
Sensient Technologies
Sensient TechnologiesNYSE: SXT: Manufacturer of specialty colors, flavors, and ingredient solutions.
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.
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2w
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Field/Staff Scientist
Saint Louis or Columbia
OnsiteFull Time
Terracon
Terracon: Provides geotechnical, environmental, construction, and facilities engineering services.
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.
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2d
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Medical Lab Scientist I
Kansas City, Missouri, United States
OnsiteFull Time
Saint Luke's Health System
Saint Luke's Health System: Provides comprehensive hospital care and outpatient medical services.
Bachelor's degree in a related science field and ASCP accreditation or registry within nine months of hire; microbiology experience preferred.
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1mo
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Medical Laboratory Scientist I
Saint Louis, Missouri, United States
$26/hr OnsiteFull Time
Quest Diagnostics
Quest DiagnosticsNYSE: DGX: Provides clinical laboratory diagnostic testing and health information services.
Degree in medical technology/chemistry/biology or associate in lab science preferred; 1 year high-complexity clinical experience preferred; must follow CLIA, HIPAA, and OSHA procedures for specimen testing and reporting.
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2mo
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Sr. Project Scientist
St. Louis, Missouri, United States
$60k-$80k/yr OnsiteFull Time
Trileaf
Trileaf: Provides environmental, architecture, and engineering consulting services nationwide.
5+ YOE5-15 years in Phase I ESA and PCA; BS in a related field; valid driver's license; travel ~25%; strong reporting and QA/QC.
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4d
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New Grad Scientist I - Summer 2027 - Central Division (For Current/Returning HNTB Interns Only)
Austin or Baton Rouge or Dallas or Des Moines or El Paso or Fort Worth or Houston or Kansas City or Little Rock or New Orleans or Oklahoma City or Overland Park or Plano or Round Rock or San Antonio or St. Louis
FieldFull Time
HNTB
HNTB: Infrastructure firm providing engineering, architecture, and construction management services.
Bachelor's degree in geology, biology, ecology, environmental science, archeology, anthropology, or a related field. Current or previous HNTB internship experience is preferred.
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5d
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New Grad Scientist I - Summer 2027 - Central Division (For Current/Returning HNTB Interns Only)
Dallas or New Orleans or Plano or Kansas City or Round Rock or Houston or El Paso or San Antonio or Des Moines or St. Louis or Fort Worth or Oklahoma City or Overland Park or Baton Rouge or Little Rock or Austin
FieldFull Time, Internship
HNTB
HNTB: Designs and manages large-scale transportation and infrastructure projects.
Bachelor's degree in geology, biology, ecology, environmental science, archeology, anthropology, or a related field. Requires accurate data analysis, field survey support, scientific research, and safety practices.
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5d
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New Grad Scientist I - Summer 2027 - Central Division (For Current/Returning HNTB Interns Only)
Dallas or New Orleans or Plano or Kansas City or Round Rock or Houston or El Paso or San Antonio or Des Moines or St. Louis or Fort Worth or Oklahoma City or Overland Park or Baton Rouge or Little Rock or Austin
OnsiteFull Time
HNTB
HNTB: Infrastructure design and engineering for transportation and public works
Bachelor's degree in geology, biology, ecology, environmental science, archeology, anthropology, or a related field. Current or previous HNTB internship experience preferred.
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3w
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Scientist I Analytical Chemist
Saint Charles, Missouri, United States
OnsiteFull Time
Eurofins Scientific
Eurofins ScientificEuronext Paris: ERF: Global provider of analytical testing and laboratory services.
1+ YOEExperience with LC-MS/LC-UV for ADME/DMPK, method development, bioanalytical validation, quality management, lab instrumentation maintenance, and small-team project leadership.
LC-MS, LC-UV, Sciex, Waters
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2w
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MT/MLS I - Microbiology
Saint Louis, Missouri, United States
$25-$41/hr OnsiteFull Time
BJC Health System
BJC Health System: Non-profit health system providing comprehensive hospital and clinical care.
0+ YOEBachelor's in physical/life science required; understands QC, instrument maintenance, routine specimen testing; <2 years lab experience preferred; strong attention to quality and timeliness.
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