The Technical Co-Founder Podcast with Fexingo: Engineering Founders, CTOs, and Building from Code

Every technical co-founder has faced it: the moment a co-founder or early engineer insists the codebase is 'too messy' and needs a full rewrite. Lucas and Luna unpack what tends to happen next — the six-month rebuild that ships nothing, the startup that dies in the refactor. They walk through a concrete case: a fintech startup that burned $1.2 million on a rewrite before realizing the original cod...

Episode 3 of The Technical Co-Founder Podcast. Most technical founders over-engineer their first product, spending months building infrastructure that nobody wants. Lucas and Luna unpack the Minimum Viable Product philosophy using the story of Buffer's Joel Gascoigne, who launched a two-page landing page with no product, just to test demand. They discuss Reid Hoffman's famous line about being 'emb...

In this episode of The Technical Co-Founder Podcast, Lucas and Luna explore why engineering founders often build the wrong feature first — and how to fix it. They dive into the story of a startup that spent six months building a scalable back end before talking to a single customer, burning through seed capital on unused infrastructure. Lucas breaks down the distinction between 'buildable' and 'va...

In the debut episode of The Technical Co-Founder Podcast, hosts Lucas and Luna dissect the story of Brex, the corporate credit card startup that reached a $12 billion valuation while losing hundreds of millions of dollars. They explore the technical co-founders' decision to build a rewards engine that cost $10 million a year to run before the company had significant revenue, the treacherous moment...