And how do they compare to what a senior dev can do with Claude Code/Codex?
I bet you a senior could do with one good prompt to Claude what a junior would take a day to do before AI - and take time away from the senior.
And how do they compare to what a senior dev can do with Claude Code/Codex?
I bet you a senior could do with one good prompt to Claude what a junior would take a day to do before AI - and take time away from the senior.
Pretty favorably, because the coding agents suck.
So do junior devs. I’ve gotten great results treating coding agents as junior devs where I keep my hands on the wheel
Some of you folks think way too highly of yourselves. Junior devs are awesome. You tell them what needs doing, if it's not well defined you have them write a document to figure it out, and then they churn away at it and will often surprise you with a brilliant solution.
Meanwhile, I've never once seen a coding agent give a brilliant solution or design to just about anything, and anything with the barest whiff of undefined-ness will simply zero in on your existing biases.
This whole thread reads like absolute insanity to me. I love getting new junior devs. They do great work.
Now ask a junior dev to design a concurrency implementation. To know the complete in my case AWS SDK and write a script in 3 minutes.
https://docs.aws.amazon.com/boto3/latest/
Or do the same for IAC - same surface area - and use Terraform on one project, CloudFormation on another, and the CDK on a third and to generate code for you when you give them the correct architecture. It took me a day to do that before AI depending on the architectural complexity and I know AWS well (trust me on this). How long would it take me to delegate that to a junior dev? It took ChatGPT 2 minutes before I started using Claude just by my pasting a well labeled architecture diagram and explaining the goal.
It took me about 8 hours total to vibe code an internal web tool with a lot of features that if I had estimated before AI, I would have said a mid level developer would have taken two weeks at least. It wasn’t complex - just a CRUD app with Cognito authentication. How long would it have taken a junior developer?
Design a concurrency implementation? I sure hope they would spend more than 3 minutes on it! Concurrency lends itself to subtle bugs even when experts write it.
I'd gladly take a junior dev to do any of that work there, because they can think for themself and not hang onto any bias you unknowingly build into the prompt like it's a religion.
I can absolutely guarantee you that a junior dev or even a senior dev could do complicated IAC as fast as AI. It isn’t that knowing the architecture is the problem, it’s just very tedious. You have to look up all of the properties involved for each service and each property of each resource. I trust AI to know proper AWS architecture from being trained on the total corpus of the internet more than a junior dev.
The one reason I can't care about these kind of arguments is that you're describing the solution, not the problem. Based on my career (maybe shorter than yours), usually you put juniors on projects of low complexity and low impact while you play the mentor role. It's not about them being a productive worker or a menial helper, it's for them to train using practical projects. Your problems don't look like suitable projects unless you want them to train them in copy-pasta from the Internet.
First let’s define roles. I am not just pulling them out of thin air.
https://www.levels.fyi/blog/swe-level-framework.html
Junior - everything is spelled out in excruciating detail, the what and the how. They are going to be slow, not know best practices, constantly bug other developers and you srs going to have to correct them a lot.
Mid level developer - little ambiguity on the business case or their role in it. They are really good coders in their domain. They have the experience to turn well defined business requirements into code. You don’t have to explain the “how” to them just the what. They should have the ability to break an assigned “epic” based on the business requirements to well defined stories and be a single responsible individual for that Epic maybe working with juniors depending on the deliverable or other mid level developers.
A senior developer works at a higher level of ambiguity and a larger scope, the business may know they want something. But neither the business or technical requirements are well defined. Think of a team lead.
Senior+ - more involved with strategy.
If I have to define everything in great detail anyway, why not just use AI? It can do it faster, cheaper, more correct and the iteration is faster. I would go as far as saying in my recent coding agent experience, a coding agent is realistically 100x faster than a junior developer since you have to give both of them well defined tasks.
My experience with Claude code and codex recently is that even the difference between a mid level developer and a coding agent is taste when it comes to user facing development, knowing funky action at a distance, and knowing the business, with a mid level developer you can assume shared context and history with an ability to learn.
So again, why do I need to hire a junior developer in the age of AI?
> I bet you a senior could do with one good prompt to Claude what a junior would take a day to do before AI
It would still be a waste of a seniors time to write that prompt. They should have more important things to spend time on
And it’s not a waste of their time to have to give detailed requirements and troubleshooting steps to a junior developer, constantly being interrupted, and then having to check their work thoroughly?
If you have to be that detailed anyway - you might as well use AI.
No, teaching the next generation of humans is not a waste of time
I'm very sorry for you that you think that way
So exactly how am I going to convince my management to open a req for a junior developer who is not going to help us meet our quarterly goals and take time away from the other senior developers that will either have to work longer hours or do less work?
I’m not going to work as a charity and neither are any of my coworkers. We are all here to exchange labor for money.
We as a collective need to convince our management of this, but that needs to start with people getting their heads out of their asses and working together instead of this mercenary attitude you have
I don’t have to do anything except keep my head down, do my job and enjoy my well earned autonomy. I’m definitely not going to try to convince my skip, skip, skip manager to change their hiring policies. It’s not like my line level manager has any power over anything
Even when I was at a startup before 2020 and I did have the ear of the CTO and the founders I knew my ultimate mission was to do what was needed to get acquired and before that I knew exactly what my mission was when k was hired to lead the tech initiatives as we were acquiring companies “find efficiencies” and go public.
Or do you think I could have convince anyone of anything as an L5 at AWS in the middle between architect at a startup and my current company?