Yes, your startup still needs a Technical Co-Founder

Claude Code, Cursor, and Replit are changing the way we build software. Non-technical people can build applications from scratch, on their own, at blazing speed, and it’s changing the startup team equation.

Today, a startup needs 4-5 engineers, 1 product manager, 1 UX designer. Tomorrow, a startup might need 3 product managers who vibe code and an engineering architect who creates the back end scaffolding and oversees security and scalability.

The amazing part: This is the worse AI will ever be. We are in for even more spectacular changes in the coming months and years.

All of this change could easily convince a non-technical founder than they don’t need a technical co-founder. I believe that’s a mistake.

In fact, I think strong technical co-founders are more important than ever.

I am not just saying this because I have an engineering background. Non-technical founders can built a functional MVP in a few hours, but a startup needs a technical co-founder to be the architect and risk manager to ensure startups can sustain and scale.

Here are three reasons why you still need a technical co-founder:

Some people point to Y Combinator as a signal for where the startup world is headed. Last year YC made headlines by telling TechCrunch that a quarter of their cohort had codebases almost entirely written by AI (95%). I’m sure these numbers are even higher in the most recent cohort.

This would imply that technical skill is no longer necessary, right? Wrong.

YC Managing Partner Jared Friedman said this about the cohort:

“It’s not like we funded a bunch of non-technical founders. Every one of these people is highly technical, completely capable of building their own products from scratch. A year ago, they would have built their product from scratch — but now 95% of it is built by an AI.”

So while AI is democratizing software development, it’s making the world’s best engineers more capable and needed than ever.

A non-technical team with AI simply can’t compete with a highly-technical team using the same tools. They will build 10x faster and better than a non-technical team. It’s like when I ran an Ironman in 2007: I had the same caliber of equipment as the pros, but they still beat me by several hours.

The best startups will still have technical co-founders, which means you need one too.

Computer science degrees are down. For the first time since the dot-com crash, the University of California system saw a decline in comp-sci degrees.

Yes, in this moment of change, fewer people are choosing to study computer science specifically. But there are other engineering programs that are up, up, up. Degrees in general engineering, data science, biomedical engineering, and interdisciplinary programs are seeing increasing enrollment.

UC San Diego, where they recently introduced the first “AI” major, was the only UC school where computer science enrollment went up.

These numbers indicate that engineering degrees are not going away. It’s just changing, specifically towards specialty areas like AI and biomed.

For startups, this means they still need a technical co-founder, but ideally one that knows how to leverage AI to sustain and scale.

Technical co-founders don’t just know how to code. They have problem-solving mindsets. They start with first principles, define systems, build and iterate, and are comfortable with tradeoffs.

In the past, business functions like finance, marketing, and even product management were discrete from engineering. But AI engineering tools like Claude Code are changing these domains, too.

Instead of creating marketing plans, marketers now create marketing systems—and we call these people GTM engineers. Financial leads now run entire teams of AI-agent analysts. For product people, the space between product requirements and first build has all but vanished. PMs of the future will be entirely technical enough to vibe-code to deploy.

Every function in a startup can leverage AI. And since founders define the culture and identify, it’s critical that at least one of the founders is technical. You need them to help build a fast-paced technical culture: lean, iterative, and systems-oriented.

Technology startups with technical leads will continue to dominate, but I also believe tech-forward founding teams will come to dominate every industry. Now is the perfect time for technical people to take on old, outdated industries: manufacturing, logistics, retail, and more.

With AI, the size of engineering teams may be changing too. This means having a VP of Engineering may be less critical, but having a technical co-founder is even more important…their value is only increasing.

What do you think? Do Startups still need technical co-founders?