Develop Yourself · Oct 9, 2025 · 12 min

#278 - AI Does NOT Replace Junior Developers, Here's Why

Every headline says AI is eating developer jobs. But spend a week in production and you’ll see the opposite: brittle code, flaky tests, and tools that look fast until you actually ship something. In this episode, I break down why the “AI replaces engineers” story sells so well—to investors, to execs, and to lazy headlines—but falls apart in the real world. We’ll talk through a Cornell + METR study showing seasoned devs got 19% slower using AI (even though they thought they were faster), and why that tracks with what I’ve seen on real teams. Send us a text Shameless Plugs 👉 Build Your First Website in 30 minutes 👈 ✉️ Got a question you want answered on the pod? Drop it here 🧑‍💻 Apply for 1 of 12 spots at Parsity - Become a full stack AI developer in 6-9 months. Get full access to Develop Yourself at brianjenney.substack.com/subscribe

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Every headline says AI is eating developer jobs. But spend a week in production and you’ll see the opposite: brittle code, flaky tests, and tools that look fast until you actually ship something.

In this episode, I break down why the “AI replaces engineers” story sells so well—to investors, to execs, and to lazy headlines—but falls apart in the real world. We’ll talk through a Cornell + METR study showing seasoned devs got 19% slower using AI (even though they thought they were faster), and why that tracks with what I’ve seen on real teams.

Send us a text

Shameless Plugs

👉 Build Your First Website in 30 minutes 👈

✉️ Got a question you want answered on the pod? Drop it here

🧑‍💻 Apply for 1 of 12 spots at Parsity - Become a full stack AI developer in 6-9 months.

Get full access to Develop Yourself at brianjenney.substack.com/subscribe

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