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Machine Learning Researcher – PhD Graduate (US)

Citadel Securities
🇺🇸Miami🇺🇸New YorkSeniorFull-time$225k–$300kPosted March 24, 2026

About the Role

At Citadel Securities, a leading global market maker, join a team of quantitative researchers modeling the markets and bringing trading strategies to life. The goal is to leverage state-of-the-art machine learning and AI algorithms to modernize the quantitative trading industry.

  • Use statistics, machine learning or AI (e.g. deep learning, NLP) to extract patterns from various kinds of datasets through innovative and rigorous research
  • Implement algorithms in high-quality code
  • Work with large data sets, including unconventional and unstructured data sources
  • Back-test models and document research findings

Responsibilities

  • Use statistics, machine learning or AI (e.g. deep learning, NLP) to extract patterns from various kinds of datasets through innovative and rigorous research
  • Implement algorithms in high-quality code
  • Work with large data sets, including unconventional and unstructured data sources
  • Back-test models and document research findings

Requirements

  • PhD degree in mathematics, statistics, physics, computer science, or another highly quantitative field
  • Advanced training and strong research track record in statistics, machine learning, AI, or another highly quantitative field
  • Prior experience working in a data driven research environment
  • Hands on programming experience in scripting (e.g. Python) and/or compiled languages (e.g. C++)
  • Strong problem-solving skills
  • Ability to communicate advanced concepts in a concise and logical way
  • Proficiency in creating and using algorithms to investigate and work through large data or error-checking problems

What You'll Get

  • $225k–$300k base salary
  • Medical and life insurance
  • Retirement and tax-free savings plans
  • Access to other healthcare programs
  • Discretionary incentive compensation program