Portfolio Researcher

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

Job summary

Millennium is a global, diversified alternative investment firm seeking a Portfolio Researcher in New York. You will develop factor models, risk measurement frameworks and contribute to portfolio analytics with interdisciplinary teams.

The role requires a quantitative degree and 4+ years in a financial setting, with Python/SQL and data libraries like Polars or Pandas. Strong collaboration and independent initiative are valued, and the base salary range is substantial.

Qualifications

• Advanced quantitative degree or experience in a financial setting.
• Strong programming in Python and SQL, with data library experience.
• Experience with equity factor risk modeling and portfolio analytics.
• Proven ability to generate insights from large datasets.

Responsibilities

• Develop and maintain robust factor modeling and risk measurement frameworks.
• Support design and enhancement of the quantitative framework with cross‑functional partners
• Collaborate with Technology to deploy models to production with accuracy and scalability
• Lead research into quantitative models including factor models and advanced risk approaches
• Apply analytics to improve portfolio insight, risk transparency, and decision support

Skills

Quantitative analysis

Python programming

SQL

Public repositories

Portfolio analytics

Statistical modeling

Education

Bachelor's degree in a quantitative field

Tools

Polars

Pandas

MSCI/Barra

Bloomberg

Axioma

Job description

Portfolio Researcher

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 the firm’s portfolios at both the firm-wide and Portfolio Manager levels. Within this environment, the team partners closely across risk, portfolio management, technology, and business management to strengthen portfolio analytics, support investment decision-making, and enhance the quantitative frameworks used to assess risk and performance.

What You’ll Do

• Develop and maintain robust factor modeling and risk measurement frameworks, with a strong focus on portfolio optimization, risk analysis, and performance attribution
• Support the design and enhancement of the team’s broader quantitative framework in partnership with Technology, Risk, Portfolio Managers, and business stakeholders
• Partner with Technology to transition quantitative models into production environments with a focus on accuracy, scalability, and workflow efficiency
• Lead research into, and implementation of, quantitative models including factor models and more complex risk assessment approaches
• Apply quantitative tools and analytics to improve portfolio insight, risk transparency, and investment decision support

What You Bring

• Degree in a quantitative discipline such as statistics, mathematics, engineering, or a related field
• 4+ years of experience in a quantitative role within a financial organization, or an advanced degree in a quantitative field
• Strong programming skills, including experience with Python and SQL
• Experience with Python data libraries such as Polars and/or Pandas
• Proficiency in at least one compiled, statically typed programming language is a plus, as is demonstrated programming ability through public repositories such as GitHub
• Prior experience in equity factor risk modeling, quantitative models, and portfolio analytics
• Experience using fundamental equity factor models such as MSCI/Barra, Axioma, or Bloomberg is highly desirable
• Strong sense of responsibility and integrity, intellectual curiosity, initiative, and the ability to work independently and manage ambiguity effectively

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.