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Senior AI Data Scientist

Job in Alameda, Alameda County, California, 94501, USA
Listing for: Exelixis Inc
Full Time position
Listed on 2026-07-10
Job specializations:
  • IT/Tech
    Data Scientist, Machine Learning/ ML Engineer, Data Engineering, Data Analyst
Salary/Wage Range or Industry Benchmark: 143500 - 203000 USD Yearly USD 143500.00 203000.00 YEAR
Job Description & How to Apply Below
Position: Senior AI Data Scientist I

SUMMARY / JOB PURPOSE

The Senior AI Data Scientist I develops, trains and validates AI/ML models and analytics solutions that transform complex clinical datasets into analysis‑ready deliverables supporting drug‑development decisions. Leveraging statistical programming (R, Python, SQL) and machine‑learning techniques, this role executes automated workflows, data quality assurance, and regulatory‑compliant outputs within a GxP‑governed clinical data pipeline. The position exists to advance the organization’s AI/ML and data science capabilities across clinical development – collaborating with Statistical Programming, Clinical Data Management, and Clinical Operations to accelerate data‑driven insights, improve data infrastructure, and ensure the accuracy and reproducibility of analytical outputs that inform study‑level and portfolio‑level decisions.

ESSENTIAL

DUTIES / RESPONSIBILITIES
  • Build, train and validate machine‑learning models (supervised and unsupervised) on clinical datasets under the direction of senior data scientists, ensuring model performance meets predefined acceptance criteria.
  • Execute data cleaning, transformation, and standardization tasks across clinical datasets from EDC, vendor and real‑world data sources, aligning outputs with CDISC (SDTM/ADaM) standards.
  • Develop and maintain LLM‑based and generative AI workflows for automated TLF review and ad‑hoc analytical queries, applying human‑in‑the‑loop validation to ensure output reliability.
  • Create interactive dashboards and visualizations that support clinical data review, study‑health monitoring, and decision‑making across cross‑functional stakeholders.
  • Execute data validation checks and quality‑assurance procedures to ensure accuracy, reproducibility and compliance of analytical outputs with GxP requirements.
  • Support the development and maintenance of data pipelines on Databricks and AWS cloud infrastructure, applying version control (Git/Git Hub) and CI/CD best practices.
  • Collaborate with Statistical Programming, Clinical Data Management, and Clinical Operations to deliver AI/ML project milestones and address study‑level data needs.
  • Prepare and maintain documentation of model development, data transformation, and validation activities consistent with SOPs and work instructions.
  • Drive external scientific visibility and publication objectives by contributing to manuscripts, conference presentations and white papers that showcase clinical AI/data science innovations.
  • Pursue continuous professional development in emerging AI/ML techniques, cloud‑based data platforms, and clinical data science methodologies to advance team capabilities.
  • Perform other duties as assigned.
  • Comply with all policies and standards.
EDUCATION / EXPERIENCE / KNOWLEDGE / SKILLS & ABILITIES
  • Bachelor’s degree in Data Science, Computer Science, Statistics, Biostatistics, Bioinformatics, or a related quantitative field and a minimum of 7 years of experience; or, Master’s degree in a related field and a minimum of 5 years of experience; or, equivalent combination of education and experience.
  • Experience thresholds for applying AI/ML methods to structured or unstructured data:
    • PhD – no prior experience required.
    • Master’s – minimum one (1) year of experience.
    • Bachelor’s – minimum three (3) years of experience.
    • Without degree – minimum seven (7) years of relevant professional experience.
  • Intermediate proficiency in Python (Pandas, Num Py, scikit‑learn) for data manipulation and model prototyping.
  • Intermediate proficiency in R for statistical analysis and visualization.
  • Basic proficiency in SQL for data querying and transformation.
  • Intermediate understanding of supervised and unsupervised learning fundamentals, including model evaluation.
  • Basic familiarity with NLP, text mining and/or time series analysis techniques.
  • Basic familiarity with LLM APIs and prompt engineering concepts.
  • Basic knowledge of Databricks notebooks and Delta Lake concepts.
  • Basic familiarity with AWS cloud services (S3, Lambda, Glue).
  • Basic understanding of data pipeline concepts and data integration fundamentals.
  • Intermediate proficiency with version control (Git/Git Hub) and project tracking tools (Jira).
  • Intermediate…
Position Requirements
10+ Years work experience
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