PhD Quant Research Intern (2026) — Live Markets & Data

Quant Blueprint LLC; New York (NY); Hybrid; USD 197,000 - 262,000; Full time

Job summary

Citadel Securities seeks a Quantitative Researcher for its 2026 PhD Intern program. The role focuses on conceptualizing valuation strategies, developing mathematical models, and translating algorithms into code within an 11-week internship in a fast-paced market environment.

The program emphasizes back testing trading models, exploring unconventional data sources, and conducting rigorous statistical analysis to refine monetization for signals.

Qualifications

• PhD in mathematics, statistics, physics, CS or related quantitative field.
• Strong knowledge of probability and statistics; ML and time-series concepts.
• Experience translating models into code (Python/R/C++).
• Independent research experience in a data-driven environment.

Responsibilities

• Conceptualize valuation strategies and develop mathematical models.
• Back test and implement trading models and signals in live trading environments.
• Use unconventional data sources to drive innovation and monetization of signals.

Skills

Probability & statistics

Machine learning

Time-series analysis

Pattern recognition

NLP

Python/R/C++

Independent research

Data-driven environment

Analytical skills

Communication

Education

PhD in mathematics, statistics, physics, or computer science

Tools

Python

R

C++

Job description

Citadel Securities seeks a Quantitative Researcher for its 2026 PhD Intern program. The role focuses on conceptualizing valuation strategies, developing mathematical models, and translating algorithms into code within an 11-week internship in a fast-paced market environment.

The program emphasizes back testing trading models, exploring unconventional data sources, and conducting rigorous statistical analysis to refine monetization for signals.