In this episode, host Aaron Marchbanks sits down with Serial Saas Founder, Joseph Lee, to explore what building a $4M+ seafood startup taught him about selling software, adapting to changing markets, and building for the next era of B2B sales. Joseph shares how the collapse of the restaurant industry during COVID forced his company to pivot and pushed him into a much more hands-on sales role, where he experienced firsthand how frustrating traditional product demos could be. That experience eventually became the inspiration for Supademo and its approach to making software demos more interactive, accessible, and scalable.
The conversation also looks at why Joseph believes the traditional “book a demo” model is becoming outdated, how autonomous AI agents could change the pre-sale experience, and why AI should support sales teams rather than replace the human relationships that ultimately drive deals.
This podcast is brought to you by Delta Systems, your one-stop shop for front-end, back-end, and full-stack software development. At Delta, Justin and Aaron share the same philosophy when it comes to clients: they treat people like colleagues, not just customers. Maybe that’s why Delta typically spends years working with the same companies: how many software engineering firms can you say that about? So, if you’ve got a big SaaS project in mind but have no idea where to start, come and get a free scope and estimate from Delta Systems at: https://deltasystems.com/
Got a burning idea for an episode, or a SaaS question you absolutely must know the answer to? Leave us a voice memo: https://www.speakpipe.com/SaasThatApp
Serial SaaS Founder Joseph Lee, CEO of Supademo, on agentic AI, interactive product demos, and building an AI-native SaaS company. In this episode of SaaS That App, he joins host Aaron Marchbanks to discuss how SaaS founders can navigate rapid technological shifts, build products that survive market disruption, and think strategically about agentic AI without chasing trends blindly.
Joseph shares the story of how a demand-driven seafood marketplace nearly collapsed during COVID and pivoted into what eventually became Supademo. He and Aaron explore why product-market fit has become perishable, why customer expectations have made “ship it while you're embarrassed” obsolete, and how the compressed reinvention cycle has become an unfair advantage for operations that can move fast.
What You’ll Learn:
- The hard-won lessons from building two SaaS companies past $3M ARR
- Why “the market trumps the founder”
- How the traditional “book a demo” model is broken
- Supademo’s evolution from a lightweight PLG tool to an AI-powered platform to a fully agentic system
- The practical realities of going AI-native
- How founders at established SaaS companies should start thinking about breaking their product into units of work that agents can call
Joseph Lee is the serial founder of several startups. He was the Founder of Coastline Market, his first startup, before co-founding Supademo, where he serves as CEO. Joseph helped Supademo cross $3M ARR, building the company through three distinct product eras: a self-serve interactive demo tool, an AI-powered platform, and, as of June 2026, a fully agentic demo platform with an always-on AI Demo Agent. He is a frequent writer and speaker on go-to-market strategy, lean AI-native team building, and the practical mechanics of adopting agentic AI in SaaS.
This podcast is brought to you by Delta Systems, your one-stop shop for front-end, back-end, and full-stack software development. At Delta, Justin and Aaron share the same philosophy when it comes to clients: they treat people like colleagues, not just customers. Maybe that’s why Delta typically spends years working with the same companies: how many software engineering firms can you say that about? So, if you’ve got a big SaaS project in mind but have no idea where to start, come and get a free scope and estimate from Delta Systems at:
https://deltasystems.com/ Highlights:
- [00:52] The Naivety vs. Pragmatism Balance
- [03:02] From Seafood Marketplace to SaaS Pivot
- [06:00] Three Eras in Three Years: PLG - AI-Powered - Agentic
- [11:35] Product-Market Fit Is Now Perishable
- [13:16] What’s Actually Broken About “Book a Demo”
- [17:09] Where the Human Line Sits
- [20:31] Inside a 15-Person AI-Native Team
- [25:35] Guardrails, Read-Only Access, and Anonymization
- [26:59] Trusting an Agent to Represent Your Company
- [29:03] The “Unit of Work” Framework for Going Agentic
- [32:10] Advice to His Younger Self
- [36:10] The One Agent Joseph Wishes Existed
Episode Resources: