Skip to content

Machine Learning Researcher – PhD Intern (Asia)

Citadel Securities
🇭🇰Hong Kong🇸🇬SingaporeStudentInternPosted September 22, 2026

About the Role

At Citadel Securities, a leading global market maker, the quantitative research team models the markets and brings trading strategies to life every day. The goal of this team is to leverage and tailor state-of-the-art machine learning and AI algorithms to modernize the quantitative trading industry.

  • Dive into research through an 11-week internship program, collaborating and connecting with senior team members.
  • 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.
  • Network and socialize with peers throughout the internship; opportunities available in Hong Kong and Singapore.

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
  • 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

What You'll Get

  • 11 week internship program with collaboration and connection with senior team members
  • Opportunity to network and socialize with peers throughout the internship
  • Signature internship program takes place June through August, with occasional flexibility to other times of the year