Tech leadership fails, over and over, for the same structural reason: we treat it as a promotion from engineering, or a transfer from business, when it's actually its own discipline. One that nobody teaches, nobody formalises, and too few people pursue with intention.

The engineers who step into CTO roles and thrive aren't the ones who were the best engineers. They're the ones who understood, early, that leadership was a fundamentally different kind of work — and who started building toward it deliberately before the title landed. The ones who struggle are the ones who assumed the skills would transfer. They don't, not automatically, and the cost of discovering that on the job is high.

If you're a senior engineer or engineering manager thinking seriously about the CTO path, the most useful thing you can do right now is understand what that path actually asks of you — before you're in the seat and learning under fire.

Is this actually what you want? Most people who say they want to be a CTO want the status or the compensation, not the job. The job is meetings, politics, ambiguity, people problems, and decisions made with incomplete information. The code is largely gone. If that sounds like relief — you might be ready. If it sounds like loss — that's worth knowing before you commit.
The dark side is real, and it isn't Engineers who dismiss management as "the dark side" are often right that bad management is dark. But their cynicism about leadership itself is usually wrong. The engineers who hold that view and never test it are the ones who leave technical talent on the table — theirs and everyone else's. Understanding the difference between bad management and the actual discipline of leadership is where most aspiring CTOs need to start.
The skills gap is larger than it looks Technical depth gets you to senior engineer. What gets you to CTO is different: making decisions with incomplete information, communicating technical trade-offs to people who don't care about the trade-offs, building teams that outlast your involvement. None of these come from writing better code. They come from deliberate practice — and most engineers don't start that practice early enough.
Startup CTO or VP Eng at a scaleup? These are different roles with different risk profiles and different skill requirements. Startup CTO means building from scratch, wearing every hat, making technical bets with existential stakes. VP Engineering at a growing company means inheriting a team, improving systems, managing upward. Both paths lead to senior technical leadership. Knowing which one fits you matters before you start optimising for the wrong one.
How to build your track record now The people who hire or promote CTOs are looking for evidence of leadership in the absence of the title. How you handle ambiguity. Whether you build things that survive your absence. How you behave when you disagree with a direction. The track record that gets you the CTO role is built years before the role opens up. Most engineers don't realise this until they're already in the interview.
The identity question The hardest thing about the transition isn't the skills or the scope — it's the identity. For most engineers, being good at the technical work is the core of how they see themselves. Leadership asks you to let go of that as the primary source of value and contribution. Some people make that shift cleanly. Many don't. Knowing which kind of person you are — before you're eighteen months into a role that feels wrong — is worth a lot.

I started as a sysadmin at Nokia and spent the next twenty years finding out, by trial and error, what technical leadership actually demands. I've been a first-time CTO, a VP of Engineering, a founder, and a co-founder. I've hired over 200 engineers. I've made most of the mistakes on this list before I understood what the list was. If you're thinking seriously about the CTO path, talking to someone who's been on it — and who will tell you honestly what it looks like — is a better use of your time than most of what's written about it.

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You want to become a CTO. Do you know what you're actually signing up for?

Six things worth understanding before you pursue the CTO title.