Quantitative ML Researcher – Markets & AI Strategies

Citadel Securities; Miami (FL); On-site; USD 235,000 - 300,000; Full time

Job summary

Citadel Securities is seeking extraordinary researchers to advance quantitative trading through machine learning and AI in a fast-paced environment. You will join teams in Miami or New York, applying statistics and ML to extract patterns from large datasets while building and testing models.

Candidates should hold a PhD in a quantitative field, demonstrate a strong ML research track record, and be proficient in Python and/or C++.

Qualifications

• PhD in a highly quantitative field (e.g., mathematics, statistics, physics, CS).
• Strong research track record in statistics, ML, or AI.
• Experience in a data-driven research environment with attention to detail.
• Hands-on programming in Python and/or C++.
• Excellent problem‑solving skills and clear communication of complex ideas.
• Ability to develop and apply algorithms to large datasets and error-checking tasks.

Responsibilities

• Apply statistics, ML, or AI to extract patterns from varied datasets.
• Implement high-quality production code for research models.
• Work with large, unstructured data sources and back-test models.
• Document research findings and share insights with the team.

Skills

Python

C++

Statistics

Machine Learning

Deep Learning

NLP

Data Analysis

Research

Communication

Education

PhD in quantitative field

Job description

Citadel Securities is seeking extraordinary researchers to advance quantitative trading through machine learning and AI in a fast-paced environment. You will join teams in Miami or New York, applying statistics and ML to extract patterns from large datasets while building and testing models.

Candidates should hold a PhD in a quantitative field, demonstrate a strong ML research track record, and be proficient in Python and/or C++.