177 senior scientist jobs at 88 companies in Middletown, DE
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Scientist Senior
Exton, Pennsylvania, United States
OnsiteFull Time
3+ YOEPhD in synthetic organic chemistry or related fields; MS in organic chemistry with 3+ years industry experience; experience with HPLC/LC-MS desirable; strong communication and problem-solving skills.
HPLC, LC/MS
2mo
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Senior Data Scientist
Malvern, Pennsylvania, United States
HybridFull Time
5+ YOEMaster’s degree or Ph.D. in Economics, Data Science, Statistics, Mathematics, or related field; 5+ years data science experience; ML modeling; Python/SQL; Databricks; strong communication and stakeholder skills.
Python, SQL, Databricks
2mo
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Senior Director, Clinical Scientist
Conshohocken, Pennsylvania, United States
$260k-$318k/yr OnsiteFull Time
15+ YOEAdvanced degree in life sciences; 15+ years clinical development experience; liver disease/MASH preferred; strong ICH/GCP knowledge; excellent communication and collaboration.
3mo
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Senior AI/ML Scientist
Charlotte or Dallas or Malvern or Philadelphia
HybridFull Time
5+ YOEFive+ years in analytical roles; data wrangling; statistical and ML methods; degree in Analytics, Applied Mathematics, Economics, Statistics or related field; graduate degree preferred.
Python, SQL, Machine Learning, Statistical Modeling
1mo
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Senior Scientist
Philadelphia, Pennsylvania, United States
$127k-$147k/yr HybridFull Time
3+ YOEPhD in immunology or related field, minimum 3 years cell and gene therapy experience (CAR-T preferred), hands-on viral vector and immunology assay experience, strong experimental design and communication skills.
Lentiviral vector, Flow cytometry, Incucyte, ELISA, PCR
2mo
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Senior Data Scientist - Marketing & Customer Analytics
Pittsburgh or Tysons Corner or Wilmington or Vienna
$100k-$186k/yr OnsiteFull Time
5+ YOE5+ years data science experience in financial services or marketing analytics; strong Python/SQL; ability to communicate with executives.
Python, SQL, Cloud, Spark, Hadoop
2w
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Senior Scientist, Neuroscience Discovery
Spring House, Pennsylvania, United States
OnsiteFull Time
PhD in neuroscience or related biological research discipline, with expertise in cell and molecular biology, iPSC modeling, human cell models, biochemical assays, cell imaging, and neuroscience research publications.
iPSC, AI, machine learning, high-throughput assays, cell imaging, proteomics, transcriptomics
1w
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QC Senior Scientist (Microbiology)
King of Prussia or Upper Merion County
OnsiteFull Time
3+ YOEBachelor's degree plus 5+ years or master's degree plus 3+ years in microbiology; GMP/GxP experience; bioburden and bacterial endotoxin testing experience; laboratory systems proficiency.
SAP, ERP, LES, LES-EM, LIMS, ELN, WinKQCL, PyroTec PRO, Microsoft Excel, Microsoft Word, Microsoft PowerPoint, Veeva, FDA, USP, EP, JP, DMAIC, 5S
1mo
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Senior Data Scientist
Baltimore, Maryland, United States
HybridFull Time
8+ YOEBachelor's degree required, 8+ years data science/engineering/analytics experience supporting federal or logistics environments, ability to obtain Tier 1 clearance, experience with ETL, modeling, forecasting, and visualization.
1d
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Senior Engineer / Scientist
Newark, Delaware, United States
OnsiteFull Time
5+ YOEMaster's or Ph.D. in a relevant technical discipline and 5–10+ years of industrial experience in scientific problem solving, mathematical modeling, experimental methods, computational modeling, and data analysis.
MATLAB, Python, Maple, ANSYS, Abaqus, COMSOL, High Performance Computing (HPC), Finite Element Analysis (FEA/FEM), Computational Fluid Dynamics (CFD)
1mo
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Senior AI Scientist
Dallas or Charlotte or Malvern or Plano
HybridFull Time
5+ YOE5+ years in data science, applied ML research, or AI evaluation; Python, LLMs, agentic AI, statistical methods, experimental design, and ML libraries required. Bachelor's in a quantitative field required.
Python, PyTorch, Hugging Face, Scikit-learn
1w
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Senior Scientist, Modeler
Malvern or Spring House
HybridFull Time
4+ YOERequires BS with 4+ years, MS with 2+ years, or PhD with 0–1 year in science or engineering; expertise in scientific modeling, statistics, data analysis, validation, and programming.
Python, R, MATLAB, Julia, C++, Java, .NET, Azure, AWS, Git, JIRA, Confluence
1w
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Senior Data Scientist
Albany or Arlington or Atlanta or Austin or Beaverton or Bentonville or Boston or Carmel or Charlotte or Chicago or Cincinnati or Cleveland or Columbus or Culver City or Denver or Des Moines or Detroit or Hartford or Houston or Irving or Kirkland or Miami or Milwaukee or Minneapolis or Morristown or Mountain View or Nashville or New York City or Oklahoma City or Overland Park or Philadelphia or Pittsburgh or Raleigh or Redmond or Sacramento or San Diego or San Francisco or Scottsdale or Seattle or St. Louis or St. Petersburg or Walnut Creek or United States or Los Angeles
$80k-$294k/yr HybridFull Time
6+ YOERequires 6+ years in data science, AI, analytics, Responsible AI, consulting, governance, or related fields; quantitative bachelor's or master's degree; Python, SQL, ML, AI governance, and client leadership expertise.
Python, pandas, NumPy, scikit-learn, PyTorch, TensorFlow, XGBoost, SQL, AWS, Microsoft Azure, Google Cloud, MLOps, GenAIOps, LLMOps, APIs, Microsoft Word
1mo
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Senior Aerosol Scientist
Edgewood, Maryland, United States
$86k-$129k/yr OnsiteFull Time
5+ YOEM.S. required (Ph.D. preferred), 5+ years research experience in aerosol science, strong analytical and communication skills, ability to develop aerosol methodologies; must obtain Secret clearance and U.S. citizenship.
SMPS, APS, OPCs
6d
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Senior Data Scientist
Camden, New Jersey, United States
$109k-$150k/yr OnsiteFull Time
4+ YOEMaster's degree or equivalent practical experience; 4+ years developing production analytics and ML models; Python or R, SQL, modern data platforms, MLOps, experimentation, communication, project leadership, and mentoring.
Python, R, SQL, Snowflake, Databricks, Spark, pandas, NumPy, SciPy, scikit-learn, TensorFlow, PyTorch, XGBoost, LightGBM, statsmodels, Git, Docker, MLflow, Gurobi, PuLP, Microsoft Azure, Synapse, AKS, Azure Functions, Power BI, Tableau, Plotly Dash, CI/CD
2mo
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Senior Data Scientist
Philadelphia or New York City or Rochester or Maryland or Massachusetts or Delaware or Pennsylvania or New Jersey or New York
$95k-$159k/yr OnsiteFull Time
Deep hands-on experience in ML, NLP, retrieval, and generative AI; extensive Python skills; experience with LLMs, RAG, semantic search, and building production ML systems.
Python, PyTorch, TensorFlow, Hugging Face, LangChain, LangGraph, LLMs
3w
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Senior Data Scientist
Aberdeen, Maryland, United States
$112k-$196k/yr OnsiteFull Time
8+ YOEMaster's in CS/ECE or 8+ years relevant experience; expertise in data science/engineering, cloud, data mesh, data tagging, and experience supporting mission-critical systems.
Python, R, Scala, Airflow, NiFi, Spark, Flink, Docker, Kubernetes, CI/CD, Grafana, Kibana, Power BI, Tableau
1w
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Senior Data Scientist
New York City or Milwaukee or Dallas or Columbus or Kirkland or Cincinnati or Cleveland or Oklahoma City or Austin or Albany or Chicago or St. Petersburg or Hartford or Pittsburgh or St. Louis or Miami or Sacramento or Raleigh or Minneapolis or Mountain View or Scottsdale or San Francisco or Morristown or Denver or Boston or Philadelphia or Des Moines or Overland Park or Los Angeles or Charlotte or Walnut Creek or Carmel or Seattle or Houston or Arlington or Atlanta or Redmond or Bentonville or Beaverton or Nashville or Detroit or San Diego
$87k-$294k/yr HybridFull Time
6+ YOE6+ years in data science, AI, analytics, Responsible AI, or consulting; bachelor's or master's in a quantitative field; Python, SQL, machine learning, generative AI, governance, and client leadership experience.
Python, pandas, NumPy, scikit-learn, PyTorch, TensorFlow, XGBoost, SQL, MLOps, GenAIOps, LLMOps, AWS, Microsoft Azure, Google Cloud
2mo
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Senior Scientist, Bioanalytics
Wilmington, Delaware, United States
OnsiteFull Time
5+ YOEDegree (BSc+14 yrs, MSc+10 yrs, or PhD+5–8 yrs) with strong expertise in enzymology, HPLC, spectroscopy, electrophoresis; analytical method development/validation; statistical quality control; proficiency with LIMS, SAP, SharePoint, and Microsoft Office.
LIMS, SAP, Microsoft SharePoint, Microsoft Office
2mo
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Senior Data Scientist
Philadelphia or Maryland or Massachusetts or Delaware or Pennsylvania or New Jersey or New York or New York City or Rochester
$95k-$159k/yr OnsiteFull Time
Advanced experience in ML, NLP, retrieval, and generative AI; production deployment of LLM-powered systems; strong Python skills; experience with RAG, semantic search, embeddings, and evaluation frameworks.
Python, PyTorch, TensorFlow, Hugging Face, LangChain, LangGraph
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