Senior Data Scientist I

Advarra

AI Data Scientist focusing on optimizing and operationalizing machine learning models for Advarra’s Braid platform. Collaborating with teams to enhance clinical and operational data leveraging advanced AI techniques.

Posted 4/23/2026full-timeRemote • 🇺🇸 United StatesSenior💰 $91,524 - $167,794 per yearWebsite

Tech Stack

Tools & technologies

PythonPyTorch

About the role

Key responsibilities & impact

Focus on understanding existing models, assessing their performance, selecting optimal architectures, and fine-tuning them to meet specific domain and business needs
Collaborate closely with data engineering, product, and domain teams to translate real-world research challenges into scalable, model-driven solutions
Optimize and fine-tune large language models (LLMs) and domain-specific variants using proprietary datasets
Evaluate model performance across key metrics and benchmarks
Implement and operationalize LLM-based and retrieval-augmented (RAG) systems
Collaborate with data engineering to ensure scalable, efficient model training, evaluation, and deployment pipelines
Assess and select models that best align with domain-specific requirements and Advarra’s regulated research environment
Partner with clinical and operational experts to translate research and trial challenges into measurable model evaluation frameworks
Conduct model interpretability and bias analyses
Document methodologies and validation results

Requirements

What you’ll need

MS in Machine Learning, Computer Science, or related quantitative discipline, or equivalent relevant work experience
5+ years of hands-on experience developing and fine-tuning ML or LLM models
Demonstrated expertise in Python, with experience and knowledge of a commercial framework like PyTorch
Hands-on experience developing, managing, and troubleshooting workflows within Databricks for data engineering, analytics, and machine learning projects
Documented strong understanding of the ML lifecycle
Experience with embeddings and retrieval-augmented generation (RAG)

Benefits

Comp & perks

Health coverage
Paid holidays
Variable bonus

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

machine learninglarge language modelsmodel fine-tuningmodel evaluationmodel interpretabilitybias analysisPythonPyTorchembeddingsretrieval-augmented generation

Soft Skills

collaborationcommunicationproblem-solvinganalytical thinkingdocumentation

Certifications

MS in Machine LearningMS in Computer Science