Skip to content

Machine Learning Researcher – PhD Graduate (Europe)

Citadel Securities
🇮🇪Dublin🇬🇧London🇨🇭ZurichSeniorFull-timePosted September 22, 2026

About the Role

  • Join Citadel Securities' quantitative research team to model the markets and bring trading strategies to life, leveraging and tailoring 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
  • Detail oriented and can deep dive into the data
  • Hands on programming experience in scripting (e.g. Python) and/or compiled languages (e.g. C++)
  • A background demonstrating strong problem-solving skills
  • An ability to communicate advanced concepts in a concise and logical way
  • Proficiency in creating and using algorithms to meticulously investigate and work through large data or error-checking problems