Tianyu Long

About Tianyu Long

I am a quantitative strategist working at the intersection of data, markets, and decision-making. My work focuses on building quantitative models and scalable tools that translate complex analysis into practical insights for the trading floor and strategic teams.In my current role within Global Strategy, I design and develop quantitative tools used across teams to support research, portfolio construction, and strategic decision-making. I work closely with strategists, traders, and business stakeholders to ensure analytical solutions are both rigorous and operationally effective.In parallel, I serve as an Associate at Columbia University and as a reviewer for several academic journals, contributing to academic research in quantitative finance and participating in peer review.I am a lifelong learner with strong interests in mathematics, statistics, and programming. I value clarity, rigor, and long-term thinking, and I enjoy building systems that create durable impact.Beyond my professional work, I actively volunteer with non-profit organizations that support women entering technology and quantitative fields. I care deeply about mentorship, diversity, and knowledge sharing.I am always open to thoughtful conversations, collaboration opportunities, and meaningful challenges. Feel free to reach out.

Experience

1. Quantitative Strategist, Vice President

   TD Securities

   Dec 2025 — Present · NY, US

Education

• Columbia University Graduate School of Arts and Sciences

  Master's degree, Mathematics of Finance(MAFN)

  2021 — 2022

• UW Foster School of Business

  Bachelor of Arts in Business Administration, Finance

  2016 — 2020