How a 19-year-old intern built the growth engine behind this $2B AI company | Hector Serrano

Hector Serrano runs one of the most innovative and successful paid growth programs in Silicon Valley. As Head of Content at Wispr Flow, a leading AI voice-to-text tool, he built a roster of 50 creators who drive 500 to 600 paid user-generated content (UGC) ads every month. The creators are paid a cut of ad spend, and the best of them earn over $13,000 a month. It’s a playbook the best DTC brands have used for years, now adapted for SaaS. Hector joined Wispr Flow at 19, before the product had PMF, and over the past year, Wispr Flow has grown revenue 30x and raised at a $2 billion valuation.

We discuss:

1. Why paid UGC is one of the biggest untapped growth levers right now

2. The step-by-step playbook for building a successful paid-UGC program

3. Why the best marketers are “allergic to AI”

4. What makes a great modern marketing hire

5. Why YouTube is the most underrated growth lever in SaaS

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Where to find Hector Serrano:

• X: https://x.com/hectorserrranoo

• LinkedIn: linkedin.com/in/hector-serrano-martin

• YouTube: https://www.youtube.com/@hectorchats

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Where to find Lenny:

• Newsletter: https://www.lennysnewsletter.com

• X: https://twitter.com/lennysan

• LinkedIn: https://www.linkedin.com/in/lennyrachitsky/

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In this episode, we cover:

(00:00) Teaser

(01:17) What Hector does at Wispr Flow

(03:10) The number-one growth lever: product-market fit

(04:25) When to start investing in paid ads

(08:27) The paid-UGC strategy and how it developed

(13:44) How creator compensation works: percent of ad spend vs. GMV

(20:07) The profile of a great modern marketing hire

(25:03) The importance of young talent

(28:22) Hector’s journey from D1 soccer to Wispr Flow

(31:03) Step-by-step: How to build a paid-UGC group from zero

(43:03) Reaching out to creators

(45:37) Building culture inside your creator group

(48:31) The role of the media buyer alongside the creative lead

(50:05) Team size and structure

(53:44) Why UGC works even in technical and enterprise SaaS

(56:15) Advice for people embarking on the creator path

(59:50) Common mistakes to avoid

(01:02:21) The sports approach to hiring

(01:03:52) Why the best marketers are allergic to AI output

(01:08:07) Founder-led content

(01:16:01) Why YouTube packaging matters more than production quality

(01:20:06) Lightning round and final thoughts

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Referenced:

• Wispr Flow: https://wisprflow.ai

• Tanay Kothari on X: https://x.com/tankots

• Matt Swulinski on LinkedIn: https://www.linkedin.com/in/mattswulinski

• Viktor: https://viktor.com

• Tobin Tang on LinkedIn: https://www.linkedin.com/in/tobinwtang

• Polymarket: https://polymarket.us

• Trybe: https://jointrybe.com

• Lukas Pakter on LinkedIn: https://www.linkedin.com/in/lukas-pakter-402117204

• SquidHaus: https://gohaus.com

• Daniel McCallum on LinkedIn: https://www.linkedin.com/in/danielmccallum

• “Everyone wants a great head of content but you won’t find…