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Jefferies

Global investment banking and capital markets

Data Scientist / Biostatistician

Data ScienceConfirmed live in the last 24 hours
Full-timeNew York, NY, USA$135k - $165kIn-person

About the Job

Requirements

  • A PhD, MD, or master’s degree in biostatistics, statistics, data science, artificial intelligence, epidemiology, bioinformatics, computational biology, medicine, or a related field is preferred.
  • Strong Python or R skills.
  • Experience building machine-learning, predictive, or generative-AI models.
  • Strong knowledge of clinical-trial design and statistical analysis.
  • Ability to explain complex scientific and quantitative findings clearly.
  • Interest in biotechnology, drug development, investing, and financial markets.

Responsibilities

  • Build AI and statistical models to predict clinical-trial results, probability of success, regulatory outcomes, and commercial potential.
  • Analyze trial design, endpoints, powering, patient populations, treatment effects, safety, and subgroup data.
  • Use generative AI, large language models, and natural-language processing to analyze scientific publications, regulatory documents, trial registries, company disclosures, and earnings transcripts.
  • Create automated tools to track pipelines, clinical catalysts, competitive programs, and emerging risks.
  • Convert model outputs and clinical data into clear investment conclusions.
  • Work with research analysts on company forecasts, pipeline valuations, and published research.
  • Validate models and control for bias, overfitting, data leakage, and AI hallucinations.

Desired Qualifications

  • Equity-research experience is helpful but not required.

About the Company

Jefferies

Global investment banking and capital markets

Jefferies is a global, full-service investment banking and capital markets firm that serves investors, companies, and governments with advisory, sales and trading, research, and wealth and asset management. It provides M&A and restructuring advice, helps raise capital, trades financial instruments, covers market research, and manages investments for individuals and institutions. It stands out by offering a wide range of services under one roof through a network of more than 40 offices worldwide, giving clients broad market access and execution power. Its goal is to help clients navigate financial markets, raise capital, and grow wealth by providing practical advice, research, and execution across different geographies and asset classes.

Company size
5,001-10,000
Company stage
IPO
Headquarters
New York City, New York
Founded
1854

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