Global Stock Selection Research - Analyst/Associate

Aplaro Ltd; Greenwich; On-site; GBP 124,162 - 150,500; Full time

Job summary

AQR Capital Management is seeking a Researcher to join our team and focus on proprietary global stock-selection strategies. You will conduct all aspects of research—from data ingestion to performance evaluation—and collaborate with traders, PMs, and risk managers to refine investment ideas.

The role emphasizes hands-on research, ML development, and continuous learning in a collaborative environment. A strong quantitative background and Python proficiency are essential to succeed.

Qualifications

• B.S. degree in a quantitative discipline and strong academic background.
• Academic or practitioner experience in machine learning methodologies preferred.
• 2–5 years’ experience in data-driven research with an alpha focus.
• Experience in quantitative research at a top asset manager or hedge fund preferred.
• Proficient programming in Python required.
• Experience translating mathematical models and algorithms into code.
• Ability to manipulate large financial data sets for empirical research.
• Experience with ML libraries such as scikit-learn, TensorFlow or PyTorch.
• Experience with NLP technologies including LLMs and prompt engineering is a plus.
• Strong quantitative skills with mathematics, probability, statistics and linear algebra.

Responsibilities

• Engage in alpha research and quantitative analysis to improve investment strategies.
• Perform statistical and economic research using traditional and alternative data to develop new alpha signals.
• Manage all research process aspects including data ingestion, analysis, and evaluation.
• Build, train and fine-tune machine learning architectures for cross-sectional or time-series data.
• Construct features from raw data and develop frameworks to test their effectiveness.
• Stay current with academic and practitioner literature in the field.
• Research aspects of implementation such as trading costs, risk models, optimization, and portfolio construction.
• Add features to the proprietary research system to implement new ideas.

Skills

Python

Machine learning

Data analysis

Statistics

Linear algebra

LLMs

scikit-learn

TensorFlow

PyTorch

NLP

Education

B.S. degree from a top institution in computer science, engineering, mathematics, statistics, operations research, physics or another quantitative discipline

Tools

scikit-learn

TensorFlow

PyTorch

Job description

About AQR Capital Management

AQR is a global investment firm built at the intersection of financial theory and practical application. We strive to deliver concrete, long‑term results by looking past market noise to identify and isolate the factors that matter most, and by developing ideas that stand up to rigorous testing. By putting theory into practice, we have become a leader in alternative strategies and an innovator in traditional portfolio management since 1998. At AQR, our employees share a common spirit of academic excellence, intellectual honesty and an unwavering commitment to seeking the truth. We’re determined to know what makes financial markets tick – and we’ll ask every question and challenge every assumption. We recognize and respect the power of collaboration, and believe transparency and openness to new ideas leads to innovation.

About The Team

The Global Stock Selection (GSS) group is responsible for the portfolio management and research of AQR's strategies relating to individual equities and equity related securities across all global liquid markets. GSS models are applied to market‑neutral long/short portfolios in AQR hedge funds as well as to long‑only, relaxed‑constraint and low volatility portfolios for institutional equity mandates and mutual funds.

Your Role

AQR Capital Management is seeking a talented Researcher to join our team of professionals and focus on our proprietary strategies related to global stock selection. Candidates should be motivated and enthusiastic about implementing new ideas and are expected to be hands‑on and self‑sufficient in conducting all aspects of research projects. Researchers manage all aspects of the research process including data ingestion and processing, analysis, methodology selection, implementation, testing and performance evaluation. The role will involve collaboration with other researchers, portfolio managers, risk managers and traders to develop new and improve current investment strategies.

Your responsibilities may include, but are not limited to:

• Engage in alpha research and other quantitative analysis to improve current investment strategies in collaboration with existing research team
• Perform statistical and economic research using traditional financial and alternative data to develop new alpha signals.
• Successful researchers manage, in collaboration with supervising portfolio manager, all aspects of the research process including data ingestion and processing, data analysis, methodology selection, implementation and testing, prototyping, and performance evaluation.
• Engage in building, training and fine‑tuning machine learning architectures for cross‑sectional or time‑series Learn how to use the appropriate model for the problem at hand.
• Construct economically nuanced features from raw data and adjust or develop new frameworks to evaluate their effectiveness.
• Engage with most recent academic and practitioner literature in the field.
• Occasionally, conduct research on various aspects of the implementation of investment strategies such as trading cost models, risk models, optimization, and portfolio construction
• Add features to proprietary research system to implement new research ideas

What You’ll Bring

• B.S. degree from a top institution in computer science, engineering, mathematics, statistics, operations research, physics or another quantitative discipline.
• Academic or practitioner experience in machine learning methodologies preferred
• 2-5 years’ experience working in a data driven research environment with an alpha focus
• Experience in quantitative research at a top asset manager or hedge fund preferred
• Proficient programming in Python required
• Experience with translating mathematical models and algorithms into code
• Ability to manipulate large financial data sets for empirical research and handle complex
• Experience with machine learning software libraries such as scikit‑learn, TensorFlow or PyTorch
• Experience with natural language processing technology, including LLMs and prompt engineering is a plus
• Strong quantitative skills with demonstrated understanding of mathematics, probability, statistics and linear algebra
• Nuanced understanding of economic and financial concepts and demonstrated intuition around applying these concepts in a quantitative environment
• Ability to work independently as well as part of a team
• Demonstrated ability to express and articulate ideas and thought processes in both verbal and written form

AQR is an Equal Opportunity Employer.

EEO/VET/DISABILITY

The salary range for this role is expected to be $165,000 to $200,000. This is the range that we in good faith believe is accurate for this role at the time of this posting. We may ultimately pay more or less than the posted range, depending upon factors such as skills, experience, location, or other business and organizational needs. This wage range may also be modified in the future. This job is also eligible for an annual discretionary bonus. We offer comprehensiv