Dave Packer

collaboration, math, software, data

New York, New York, United States

About

I founded Harmonic Strategies to help Democratic campaigns and left-aligned organizations craft sharper, more adaptive strategies — combining analytical depth with a clear view of the bigger picture. If you're working to strengthen democratic participation or rethink how we run campaigns, I'd love to connect!

Experience

  • Founder at Harmonic Strategies LLC
    Jul 2025 - Present · 1 yr 1 mo

  • Head of Quantitative Platform and Technical Strategy at Two Sigma Private Investments
    Oct 2021 - Present · 4 yrs 10 mos

  • Managing Director at Two Sigma Investments
    Mar 2007 - Jul 2025 · 18 yrs 5 mos

  • Product Manager, Early Voting at Harris for President
    Aug 2024 - Nov 2024 · 4 mos

  • Technical Lead at Lehman Brothers
    Nov 2004 - Feb 2007 · 2 yrs 4 mos