256 sr scientist jobs at 120 companies in Illinois
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Sr. Scientist (Extractable & Leachable)
Melrose Park or Chicago or Illinois
$90k-$100k/yr OnsiteFull Time
1+ YOEExperience in extractables/leachables and mass spectrometry, method development/validation in a cGMP environment, regulatory knowledge (USP/ISO/21 CFR), ability to lead projects and train scientists.
GC/MS, HR-LC/MS, HS-GC/MS, GC-MS, LC/MS, ICP/MS, mass spectrometry
3mo
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Sr. Data Scientist, Translational Research
Chicago or Redwood City or New York City
$100k-$175k/yr RemoteFull Time
Senior data scientist with advanced degree, experience in large biomedical datasets, ML, Python/R, cloud, and AI-enabled workflows.
Python, R, AWS, GCP, Docker, Git, Linux, Jupyter, Pandas, NumPy, SciPy, Scikit-learn, GitHub Copilot, Plotly, Flask, Dask
3w
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Sr Data Scientist
Chicago, Illinois, United States
$105k-$149k/yr OnsiteFull Time
5+ YOEMaster's or PhD in quantitative field, 5+ years experience, expertise in sampling, experimental design, ML, Python and SQL, GIS, and strong communication skills.
Python, SQL, R, Matlab, SAS, GIS, Hadoop, Spark
3w
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Sr Data Scientist
Chicago, Illinois, United States
$105k-$149k/yr OnsiteFull Time
5+ YOEMaster's or PhD in statistics/math/computer science or related field; 5+ years experience; expertise in sampling, experimental design, machine learning, Python and SQL; strong communication skills.
Python, SQL, R, Matlab, SAS, Hadoop, Spark, GIS
1w
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Sr Data Scientist
Chicago, Illinois, United States
$142k-$222k/yr HybridFull Time
5+ YOEMaster’s degree plus 5 years, or bachelor’s degree plus 7 years, in a related field. Requires credit risk modeling, Python, SQL, machine learning, Tableau, Excel, A/B testing, Jira, Snowflake, Apache Airflow, and GitHub experience.
Python, SQL, Tableau, Microsoft Excel, Jira, Snowflake, Apache Airflow, GitHub, Machine Learning, XGBoost
3mo
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Sr. Environmental Scientist
Lisle or Dallas or Charlotte
HybridFull Time
10+ YOESenior environmental project manager with 10+ years experience; BS in Environmental Science or related field (MS preferred); ArcGIS Pro; strong regulatory knowledge; travel; driver’s license; leadership skills.
ArcGIS Pro, MS Office
3mo
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Sr. Data Scientist
Chicago, Illinois, United States
$115k-$195k/yr OnsiteFull Time
Python, ML, data pipelines, distributed training, cloud; strong statistical background; computer science degree; salary range 114k-194k USD.
Python, NumPy, Pandas, scikit-learn, Linux, Keras, TensorFlow, Azure
1mo
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Sr Scientist, Taste Modulation
Niles, Illinois, United States
$95k-$120k/yr OnsiteFull Time
7+ YOEBachelor's in food science/chemistry/biochemistry/engineering,7+ years in food/beverage/ingredient or flavor product development, experience leading NPD projects, expertise in sugar reduction/masking, strong communication and project management.
2d
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Sr Scientist I, Chemistry
North Chicago, Illinois, United States
$97k-$184k/yr OnsiteFull Time
10+ YOEBachelor’s degree plus typically 10 years, master’s plus typically 8 years, or PhD with no experience required; expertise in synthetic organic chemistry, compound purification, and spectral analysis.
3w
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Sr Reconstruction Scientist
Vernon Hills, Illinois, United States
$150k-$180k/yr HybridFull Time
PhD in a STEM field; experience with tomographic reconstruction, CT modeling, medical image processing, inverse problems, optimization, and statistical modeling; strong C/C++, Python, or MATLAB skills.
C, C++, Python, MATLAB, machine learning, artificial intelligence, AI/ML
5d
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SR Data Scientist, Rental
Chicago, Illinois, United States
$113k-$183k/yr OnsiteFull Time
6+ YOEBachelor's degree or equivalent experience and 6+ years in quantitative analysis/data management, or master's degree with 1–3 years. Requires Python, SQL, BI, machine learning, statistics, AWS, ETL, and data visualization expertise.
Python, SQL, GA4, BigQuery, AWS, Cloud ELT/ETL, Snowflake, Power BI, Tableau, NumPy, SciPy, pandas, SVM
2mo
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Research Scientist, Sr.-Oncology
Evanston, Illinois, United States
$88-$137/hr OnsiteFull Time
PhD in related field required, demonstrated experience in outcomes and care delivery research, grant funding experience, strong methodological and analytic skills, familiarity with real-world data, EHR/claims, and excellent communication.
EHR
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Sr Data Scientist II
Raleigh or Florida or Georgia or Illinois or North Carolina or South Carolina or Texas or Virginia or West Virginia
$105k-$175k/yr HybridFull Time
Advanced Python, production machine learning, generative AI, RAG, agentic systems, distributed applications, testing, observability, code review, and end-to-end production ownership.
Python, OpenSearch, Solr, pytest, ruff, mypy, Pydantic
5d
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SR Data Scientist, Rental
Chicago, Illinois, United States
$113k-$183k/yr OnsiteFull Time
6+ YOEBachelor’s degree or equivalent and 6+ years of quantitative analysis or data management experience, or master’s degree with 1–3 years. Requires Python, SQL, BI tools, machine learning, and advanced statistics.
Python, SQL, Google Analytics 4 (GA4), BigQuery, AWS, Snowflake, Microsoft Power BI, Tableau, NumPy, SciPy, pandas, Cloud ELT/ETL, Machine Learning, Random Forests, Support Vector Machines (SVM), Neural Networks, ANOVA
3w
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Sr Data Scientist II
Raleigh or Virginia or Florida or Toronto or Georgia or South Carolina or Texas or West Virginia or North Carolina or Illinois
OnsiteFull Time
Advanced Python proficiency, production application ownership, LLM and retrieval expertise, resilient distributed systems, testing, observability, code review, and deployment experience are required.
Python, OpenSearch, Solr, pytest, ruff, mypy, Pydantic, CI
3w
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Sr Data Scientist II
Raleigh or Virginia or Florida or Toronto or Georgia or South Carolina or Texas or West Virginia or North Carolina or Illinois
OnsiteFull Time
Requires advanced Python, software design, testing, observability, distributed systems, production LLM, retrieval, code review, and lifecycle ownership expertise; OpenSearch or Solr experience is preferred.
Python, OpenSearch, Solr, pytest, ruff, mypy, Pydantic
1w
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Sr. Scientist, R&D - Product Dev
Glenview or Warrendale
HybridFull Time
4+ YOEBachelor’s degree in food science, chemistry, chemical engineering, life sciences, or related field plus 4 years’ experience, or equivalent master’s/PhD pathways; requires formulation, processing, experimentation, project management, and communication skills.
1mo
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Sr Scientist, Food - Geneva, IL
Geneva, Illinois, United States
$86k-$151k/yr OnsiteFull Time
10+ YOEBSc in Food Science or related field, 10+ years food/flavor industry experience with flavor applications or product development, strong project management, data interpretation, and communication skills.
2mo
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Senior Data Scientist
United States or Chicago
$125k-$145k/yr HybridFull Time
6+ YOE6+ years experience, bachelor’s in a quantitative field required (advanced degree preferred). Strong Python and SQL skills, experience with AI/ML, generative and agentic AI, BI tools, and ability to lead projects and mentor junior data scientists.
Python, SQL, Tableau, Microsoft Power BI, Claude Code, GitHub Copilot, Amazon SageMaker, Amazon Bedrock, AWS Lambda, AWS Glue, Amazon S3, Amazon Redshift, Snowflake
2w
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Sr Sci, R&D - Fermentation Scientist
Glenview, Illinois, United States
$90k-$112k/yr OnsiteFull Time
4+ YOEBachelor's degree in microbiology, food science, fermentation sciences, or related field; 4 years relevant experience, or equivalent experience with advanced degree. Requires fermentation, microbiology, experimental design, and data analysis expertise.
INFORS, Eppendorf DASGIP
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