Senior Portfolio Researcher

Millennium; New York (NY); On-site; USD 160,000 - 250,000; Full time

Job summary

Millennium in New York seeks a senior quantitative researcher to advance equity factor models, risk analytics, and portfolio optimization. You will collaborate with portfolio managers and technology to implement models end-to-end and inform investment decisions.

The role requires 5+ years in a quantitative research role within finance, with strong Python and SQL skills, plus experience with MSCI or Axioma tools. Excellent communication and independent research mindset are essential.

Qualifications

• Advanced degree in finance or economics preferred.
• 5+ years in quantitative research within finance, focusing on equities.
• Experience with factor models, risk analytics, and portfolio optimization.
• Familiarity with AI-assisted coding and LLM research workflows a plus.
• Strong written and verbal communication with senior management.

Responsibilities

• Research and develop equity factor models, thematic factors, and risk analytics for equity portfolios.
• Conduct tactical quantitative research to answer business questions from managers.
• Partner with technology to move quantitative models into production.
• Collaborate with risk, portfolio, and business managers to apply models in daily workflows.
• Explore new datasets and models to enhance analytical capabilities.
• Prepare presentations and reports for management to convey findings clearly.

Skills

Python

SQL

AI tools

Communication

Independent research

Quantitative analysis

Education

Master's or Ph.D. in finance/economics

Technical/quantitative degree

Tools

MSCI

Axioma

Python tooling

SQL tooling

Job description

About Millennium

Millennium is a global, diversified alternative investment firm, founded in 1989. Defined by evolution, innovation and focus, Millennium’s mission is to deliver results for our investors. Our people are empowered with both independence and support: the autonomy to pursue ideas with conviction and the backing of a global network committed to collaboration, disciplined risk management and continuous learning. With opportunities to deepen expertise and accelerate development, talent at Millennium is equipped to adapt, evolve and build lasting impact over time. Discover how transformative growth accelerates impact.

About Millennium

Millennium is a global, diversified alternative investment firm, founded in 1989. Defined by evolution, innovation and focus, Millennium’s mission is to deliver results for our investors. Our people are empowered with both independence and support: the autonomy to pursue ideas with conviction and the backing of a global network committed to collaboration, disciplined risk management and continuous learning. With opportunities to deepen expertise and accelerate development, talent at Millennium is equipped to adapt, evolve and build lasting impact over time. Discover how transformative growth accelerates impact.

Meet the Team

Millennium’s Global Risk Management Department is responsible for identifying, measuring, monitoring, managing and reporting on the risks associated with Millennium’s portfolios at both the firm-wide and Portfolio Manager levels. Within this environment, the team develops and applies quantitative models, portfolio analytics, and risk tools that help Portfolio Managers, business leaders, and senior management make informed decisions across equity portfolios.

What You'll Do

• Research and develop equity factor models, thematic factors, and portfolio and risk analytics that are central to the risk management of equity portfolios
• Conduct tactical quantitative research in response to a range of questions from business managers and senior management
• Partner with technology to streamline the transition of quantitative models and tools into production environments
• Collaborate with risk, portfolio, and business managers to support the accurate application of quantitative models and tools in day-to-day workflows
• Explore new datasets and quantitative models from internal and external sources to continuously enhance the team’s analytical capabilities
• Prepare presentations and reports for business managers and senior management to communicate research findings, new models, and portfolio insights clearly and effectively

What You Bring

• Degree in a technical or quantitative field; Master’s or Ph.D. in finance or economics preferred
• 5+ years of experience in a quantitative research role within a financial organization, with a focus on equities
• Prior experience in factor modeling, quantitative portfolio models, portfolio and risk analytics, hedging applications, and portfolio optimization preferred
• Experience developing or using fundamental equity factor models such as MSCI or Axioma is highly desirable
• Strong programming skills, including experience with Python and SQL
• Experience with AI tools, including AI-assisted coding, agentic workflows, and LLM use for research and recurring analytical work is a plus
• Strong written and verbal communication skills, with the ability to communicate effectively with senior managers across the organization
• Intellectual curiosity, sound judgment, and the ability to work independently on open-ended research questions

Salary Range

Millennium offers a total compensation package which includes a base salary, discretionary performance bonus, and comprehensive benefits. The estimated base salary range for this position is $160,000 to $250,000, which is specific to New York and may change in the future. When finalizing an offer, we take into consideration an individual’s experience level and the qualifications they bring to the role to formulate a competitive total compensation package.