David Spiegel

product

David Spiegel

Product and growth in San Francisco.

I’m a product manager and builder in San Francisco. I’ve spent about a decade working the seams between growth, monetization, and UX — across AdTech, DTC healthcare, and publishing — usually the person brought in to find where a product loses people, and fix it. I studied psychology at NYU, so I tend to start with behavior and intent before features.

Right now I’m consulting with one startup on growth, marketing, and brand — and looking for more: consulting, or a product or growth role with a startup in SF. I’m a generalist by necessity, which is the thing that makes me useful.

Email me

San Francisco—:—

Work

  • 5 Axis Health

    Healthcare2024–25

    First product hire and product lead at a DTC startup doing compounded GLP-1s before it was trendy. Scaled 10K → 50K+ patients; redesigned the purchase flow for a 76% lift in AOV and 30% in conversion. Worked on the Tmates and MD Exam brands.

  • Sharethrough

    AdTech2022–23

    First PM on ad-rendering infrastructure at a programmatic exchange. Launched one of their best-performing ad formats and added $1.8MM in annual revenue.

  • Content IQ

    Publishing2021–22

    Owned ad monetization across 20+ publisher sites and roughly $40MM in annual revenue. Acquired by Perion (NASDAQ: PERI).

  • The Sandbox

    Web32021

    Redesigned the marketplace, homepage, and onboarding for one of the biggest NFT games, as a short consulting project — cut bounce rate by ~40%.

  • A360 Media

    Commerce2019–20

    Helped launch and grow a new affiliate-commerce division (Us Weekly, Men’s Journal). Ran the user-facing merchandising and email, and figured out what to promote.

  • Fluent

    Growth2018

    Interned across Product and Ad Ops at once — where I learned I was good at CRO and A/B testing. Added $1.4MM in annual revenue from onboarding tests.

Building

  • Obeagle

    Omegle, but for dogs. A fun one.

  • AdTech AI eval

    One of the first AI evals for an AdOps workflow — synthetic tasks with deterministic verifiers.

  • AEO platform

    An AI-search-optimization platform. In development.

About

I think a lot about behavior and intent — most product problems are really attention, motivation, or friction problems wearing a costume. I care about UX and the small stuff, and I’d rather build a rough version of something than write the perfect doc about it.

Years ago I tried to build an app called Pearup in college. It never launched, but it’s what made me want to get good at this.

Contact

The fastest way to reach me is email. Always happy to meet people building interesting things.