Senior Quantitative Researcher

About the Company

BestEx Research is a U.S.-based financial technology and research firm specializing in sophisticated execution algorithms and transaction cost modeling tools. The firm provides services to hedge funds, CTAs, asset managers, and banks through both traditional electronic brokerage and a SaaS model. Their cloud-based Algo Management System (AMS) delivers an end-to-end algorithmic trading solution for equities, futures, and foreign exchange.

Responsibilities

• Design, develop, and validate quantitative models for market analytics and transaction cost analyses
• Conduct rigorous statistical analysis on large, complex datasets to surface actionable insights
• Partner with engineers to bring research prototypes into production systems
• Define and track model performance metrics and monitor deployed models for drift and degradation
• Contribute to intellectual rigor through peer-reviewing analyses and documenting methodology
• Stay current with academic research and industry developments to evaluate applicability to company problems

Requirements

• Advanced degree (MS or PhD) in Mathematics, Statistics, Economics, Physics, CS, or related field preferred
• Expert proficiency in Python (Numpy, Pandas, scikit-learn, statsmodels)
• Strong foundation in statistics, probability, and machine learning
• Demonstrated ability to take a research question from problem definition through model deployment
• Clear written and verbal communication skills
• Highly motivated self-starter mindset with end-to-end ownership capabilities

Preferred Qualifications

• Familiarity with R for research and visualization
• Prior experience (0-3 years) in fintech, electronic trading, or data-heavy research environments
• Prior exposure to real-time or production ML systems
• Exposure to AI
• 5+ years of experience