Built by a CTO, Etienne de Bruin. For those CTOs still in love with the craft. This weekly email is for tech leaders navigating complexity, AI disruption, and the loneliness of the seat.
| Platform |  | Pricing | Freemium | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 81 | Founded | 3 years ago | Last Issue | 7 days ago |
| Active | |||||
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ctosub.comLatest Issues
The CTO’s Hybrid Headcount
Two numbers that refused to agree
It’s a Tuesday night and I’m on a video call with Barbara. Barbara is a composite of three CTOs I’ve sat with this year, so don’t go looking for her on LinkedIn, but every tension in her story came from...
The CTO’s 2027 Rescue
The spreadsheet that already decided
Somewhere in your company there’s a planning model for 2027, and it has already made a decision about you. It assumes the agents your team adopted this year will let you do the same work with fewer e...
The CTO’s 2027 Reckoning
In my view the real AI revolution began on November 24, 2025, when Anthropic released Claude Opus 4.5. Anthropic said it outscored every human candidate who had ever taken its performance engineering take-home exam. Some analysts called it...
The CTO’s Dark Matter
None of what follows happened. I invented it on a plane a few weeks ago and I haven’t been able to put it down since, so I’m going to tell it to you the way I’ve been telling it to myself.
There’s a CTO. Call her Dana.
She runs engineerin...
The CTO’s Narrow Edge
Matt is the most AI-fluent technology leader I know.
We’re outside a taco place two blocks from his office on a Tuesday in May, at one of those metal tables that wobbles. He has run his own evaluation suite for a year. He can tell you, wit...
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Authors
The writers behind this newsletter.
Founder of 7CTOs | Creator of CTO Levels™ | CTO Coach at EXE
The CTO Podcast, hosted by Etienne de Bruin, explores challenges of Chief Technical Officers, offering insights on strategy, management, security, innovation, and more.
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