A Paradigm Shift in Programming
Available in Español .
Over the past year my routine as a developer has flipped. I used to spend 90 % of the day writing code and only 10 % testing. With assistants like Codex or Google’s Jules, the work looks completely different.
Today the priority is decomposing work into small, parallelisable units so Codex can produce several pull requests at once. While the AI ships those changes, I focus on reviewing and testing the previous batch, tightening the loop.
My current time split:
- 10–20 % hands-on coding.
- 30 % designing independent tasks that the AI can tackle.
- 50–60 % reviewing, testing, and polishing what the assistant delivers.
Fragmenting the work is now a critical skill. Treat the development process as a conveyor belt of microtasks and you multiply velocity without sacrificing quality—provided validation remains rigorous.
Productivity has skyrocketed: less time hammering out code, more time coordinating, verifying, and designing. This very post follows that automated flow: I recorded a few voice notes with the core ideas and Codex turned them into the text you’re reading.