alt Hacker NewsThe thing people miss in these “replace juniors with AI” takes is that juniors were never mainly about cheap hands on keyboards. They’re the only people in the org who are still allowed to ask “dumb” questions without losing face, and those questions are often the only signal you get that your abstractions are nonsense.
What AI does is remove a bunch of the humiliating, boring parts of being junior: hunting for the right API by cargo-culting Stack Overflow, grinding through boilerplate, getting stuck for hours on a missing import. If a half-decent model can collapse that search space for them, you get to spend more of their ramp time on “here’s how our system actually fits together” instead of “here’s how for-loops work in our house style”.
If you take that setup and then decide “cool, now we don’t need juniors at all”, you’re basically saying you want a company with no memory and no farm system – just an ever-shrinking ring of seniors arguing about strategy while no one actually grows into them.
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Yes, the most helpful things AIs do is to guide people into popular environments they don't know very well.
Or in other words, the people that get the most value from AI are junior devs, since they still don't know very well plenty of popular environments. It's also useful for seniors that are starting something in a new environment, but those only get 1 or 2 novel contexts at a time, while everything is new for a junior.
Or, in again another set of words, AI enable juniors to add more value more quickly. That makes them more valuable, not less.
> They’re the only people in the org who are still allowed to ask “dumb” questions without losing face
I strongly disagree, a Senior who cannot ask a "dumb question" is a useless developer to me. Ask away, we want to figure things out, we're not mind readers. Every good senior developer I know asks questions and admits when they don't know things. This is humility and in my eyes is a strong market for a good Senior Developer. The entire point of our job is to ask questions (to ourselves typically the most) and figure out the answers (the code).
Juniors could or should ask more questions, and by the time you're a Senior, you're asking key questions no matter how dumb they sound.
This is a really good and under appreciated point. My recommendation to mid-level, senior, and staff engineers is to keep questioning decisions and create a culture where that’s encouraged.
Junior devs do that naturally (if you have the culture) because they don’t know anything already. It’s great
I think the biggest challenge now becomes how more seasoned engineers teach juniors. The AI makes the ramp a lot easier but you still do best when you understand the whole stack and make mistakes.
It’s damned near impossible to figure out where to spend your time wisely to correct an assumption a human made vs. an AI on a blended pull request. All of the learning that happens during PR review is at risk in this way and I’m not sure where we will get it back yet. (Outside of an AI telling you - which, to be fair, there are some good review bots out there)
Agree.
> cargo-culting Stack Overflow
What do you mean by this? I understand “cargo-culting” as building false idols, e.g. wooden headphones and runways to attract airplanes that never come.
So, I think there are two models.
One is a "one junior per team" model. I endorse this for exactly the reasons you speak.
Another, as I recently saw, was a 70/30 model of juniors to seniors. You make your seniors as task delegators and put all implementation on the junior developers. This puts an "up or out" pressure and gives very little mentorship opportunities. if 70% of your engineers are under 4 years of experience, it can be a rough go.
AI will replace jobs. People are putting their IT/dev budget into something, which means something else will be cut.
I also don’t believe juniors, kids, seniors, staff, principals, distinguished/fellow should be replaced by AI. I think they WILL be, but they shouldn’t be. AI at Gemini 3 Flash / Claude Opus 4.5 level is capable with help and review of doing a lot of what a lot of devs do currently. It can’t do everything and will fail, but if the business doesn’t care, they’ll cut jobs.
Don’t waste time trying to argue against AI to attempt to save your job. Just learn AI and do your job until you’re no longer needed to even manage it. Or, if you don’t want to, do something else.
This is actually a super power I have after spending my first part of my career in sales.
I was never formally trained so I just keep asking "why" until someone proves it all the way. Sales itself is also a lot about asking questions that won't come up to find the heart of the thing people actually want... which is just another side of the coin.
I mean, that’s an interesting take, but “having people around to ask dumb questions” is not why most orgs hire juniors.
Yikes. Sounds like you work for a toxic company. The mid and senior level engineers I know all go out of their way to ask the dumb questions. Every junior employee I've mentored, I've told them the main way they can fail is not asking questions early and often. Gotta build a culture that supports questions.
If you are so junior that you are spending hours on a missing import, you may have a claim for disability.
What will eventually pan out is that senior devs will be replaced with junior devs powered by AI assistants. Simply because of the reasons you stated. They will ask the dumb important questions and then after a while, will even solve for them.
Now that their minds are free from routine and boilerplate work, they will start asking more 'whys' which will be very good for the organization overall.
Take any product - nearly 50% of the features are unused and it's a genuine engineering waste to maintain those features. A junior dev spending 3 months on the code base with Claude code will figure out these hidden unwanted features, cull them or ask them to be culled.
It'll take a while to navigate the hierarchy but they'll figure it out. The old guard will have no option but to move up or move out.
"without losing face"? What culture are you referring to? The Western companies I have worked at do not discourage such questions -- in fact, it's often the sign of someone very senior when they ask a seemingly 'dumb' question that others have taken for granted.