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AWS CEO says replacing junior devs with AI is 'one of the dumbest ideas'

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Re: AWS CEO says replacing junior devs with AI is 'one of the dumbest ideas'

#28
post #7

Relevant post by Kent Beck from 12th Dec 2025: The Bet On Juniors Just Got Better https://tidyfirst.substack.com/p/the-bet-on-juniors-just-got... > The juniors working this way compress their ramp dramatically. Tasks that used to take days take hours. Not because the AI does the work, but because the AI collapses the search space. Instead of spending three hours figuring out which API to use, they spend twenty minute…

Search is easily the best feature of AI/LLMs.

Re: AWS CEO says replacing junior devs with AI is 'one of the dumbest ideas'

#29
post #14

This sounds like a comment from someone who doesn't have visibility into how good the models are getting and how close they are to fully autonomous, production-grade software development.

This is an easy theory to prove; if AI was anywhere close to a senior engineer, we'd see the costs of software development drop by a corresponding amount or quality would be going up. Not to mention delivery would become faster. With LLMs being accessible to the general public I'd also expect to see this in the open-source world.

I see none of that happening - software quality is actually in freefall (but AI is not to blame here, this began even before the LLM era), delivery doesn't seem to be any faster (not a surprise - writing code has basically never been the bottleneck and the push to shove AI everywhere probably slows down delivery across the board) nor cheaper (all the money spent on misguided AI initiatives actually costs more).

It is a super easy bet to take with money - software development is still a big industry and if you legitimately believe AI will do 90% of a senior engineer you can start a consultancy, undercut everyone else and pocket the difference. I haven’t heard of any long-term success stories with this approach so far.

Re: AWS CEO says replacing junior devs with AI is 'one of the dumbest ideas'

#30
post #14

This sounds like a comment from someone who doesn't have visibility into how good the models are getting and how close they are to fully autonomous, production-grade software development.

Yes, you are right

I'm yet to see that production-grade code written by these production-grade models;

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