Senior Quantitative Researcher, Equity Risk & Trading

Nomura Holdings, Inc.; New York (NY); On-site; USD 175,000 - 250,000; Full time

Job summary

Nomura Holdings, Inc. in New York seeks an experienced Quantitative Researcher to join the Cash Equities Central Risk Book team.

The role focuses on quantitative modeling, risk management, and portfolio optimization to support our global equities business. The ideal candidate holds an advanced degree and 3–8 years in quantitative research or risk management, with expert Python and kdb+/q skills and familiarity with major risk systems.

Qualifications

• Advanced degree (PhD or Master's) in Mathematics, Statistics, Physics, Financial Engineering, Computer Science, or related quantitative field
• 3-8 years of experience in quantitative research, risk management, or trading at a financial institution
• Strong understanding of equity markets, portfolio theory, and risk models

Responsibilities

• Design and implement quantitative models for equity portfolio risk management, including factor models, correlation structures, and tail risk analytics
• Develop portfolio optimization frameworks for rebalancing, hedging strategies, and capital allocation
• Build real-time risk monitoring systems tracking P&L attribution, Greeks, and exposure metrics
• Perform scenario analysis and stress testing under various market conditions
• Design and enhance algorithmic execution strategies for optimal portfolio rebalancing and risk reduction
• Develop transaction cost analysis (TCA) models and execution quality metrics
• Build algorithms for smart order routing, liquidity-seeking, and market impact minimization
• Optimize execution schedules balancing urgency, market impact, and timing risk
• Support management of the firm's central equity risk book, including inventory optimization
• Develop models to price and manage residual risk from client facilitation and market making
• Create tools for evaluating trade-offs between risk reduction, capital efficiency, and revenue generation
• Collaborate with trading desks to implement risk mitigation strategies

Job description

Nomura Holdings, Inc. in New York seeks an experienced Quantitative Researcher to join the Cash Equities Central Risk Book team.

The role focuses on quantitative modeling, risk management, and portfolio optimization to support our global equities business. The ideal candidate holds an advanced degree and 3–8 years in quantitative research or risk management, with expert Python and kdb+/q skills and familiarity with major risk systems.