The Real Skill in Programming Is Debugging. Everything Else Is Copy-Paste
I have a feeling this statement is even more true in the age of AI and coding agents. Sure, today we often write prompts instead of code. But if we’re honest, isn’t that just an extremely fast version of copy-paste?
When people imagine programmers, the picture is usually quite dramatic. In the most optimistic version, it's a handsome hacker sitting in a basement full of computers with Angelina Jolie, breaking into bank systems and secret Pentagon databases.
A slightly less romantic but still impressive image is a developer hammering the keyboard at insane speed while lines of code cascade down the screen like in The Matrix.
And to be fair, when you start learning programming, that vision is not entirely wrong (except of course Angelina Jolie). You actually write a lot of code.
Someone even commented under my article
Your GitHub Contribution Graph Means Absolutely Nothing (And Here's Why)
that the greenest contribution graphs are often from aspiring developers who are simply learning by doing — coding every day, trying things out, experimenting. That’s completely natural.
I often talk with junior and mid developers, and many of them understand the job exactly this way: your role is to deliver features. Ship code. And honestly, there is absolutely nothing wrong with that.
Small personal update: I recently got accepted into the AWS Community Builders program 🎉I hope they give out cool hats and t-shirts 😅 If you feel like supporting me, you can leave a like on my LinkedIn post here.
But What Happens Later?
Something interesting happens as you move further in your career.
The more senior you become — and the more responsibility you have for the system — the less time you actually spend writing code.
Instead, more and more of your time goes into debugging, investigating strange issues, and generally solving problems that nobody else managed to solve.
You can think now: but some seniors still code a lot!
And yes, if you are an experienced developer working in a small startup, you will probably still spend a lot of time writing code. Especially now, when AI tools can accelerate development so much.
But as projects grow and become more successful, their complexity grows as well. And with complexity comes a different kind of work.
Less writing code. More understanding systems. Because when something breaks in production, someone has to investigate it.
Suddenly the support team needs answers. Right now!
Then you spend the whole day analyzing logs.
Oh, there is a race condition somewhere! You're a senior, you need to investigate it.
Is something wrong with our configuration? You need to figure it out!
And of course juniors always will come with the most famous developer question of all:
“Why is this null?”
Wait… Isn’t Programming Also About Architecture?
Now you might say: programming is not just debugging. Developers also need to choose architectures, frameworks, and technology stacks.
That’s absolutely true.
But the longer I work in this industry, the more I realize that in many areas almost everything has already been invented. There are design patterns, well-known architectural approaches, and proven solutions to many classes of problems.
When you design a system, you rarely invent everything from scratch. Instead, you reuse patterns that worked before, adapt architectures that others already tested, and build on the collective knowledge of the developer community.
In that sense, architecture itself is often a kind of copy-paste — just at a much higher level.
Ignoring all that accumulated knowledge would be either genius… or stupidity.
When I Was a Junior
When I was a junior developer, I was shipping feature after feature. I must have written kilometers of code back then. If something didn’t work, I would spend some time researching, trying things, googling errors. If I still couldn’t fix it, I simply went to a senior developer.
And that was it. No matter how annoying and how time-consuming the issue was, the senior had to solve it. That was literally his job.
I remember one situation from that time when the project on my local machine suddenly stopped building. I spent hours trying to figure it out, until a senior checked a few things and calmly said: “Your Node version is wrong.” That was the whole mystery.
Back then I also felt a bit sorry for seniors. They were always on calls, constantly interrupted, rarely writing actual code. Meanwhile I was happily implementing feature after feature. Infrastructure? Pipelines? AWS? I barely even thought about those things.
Today
I’m now a senior developer myself, and I even have to coordinate work across multiple teams. Do I still write code? Of course. But do I deliver huge numbers of new features like I did when I was a junior?
Not really.
Instead, a lot of my work looks like this: upgrading a framework and trying to understand why everything suddenly breaks. Checking whether a dependency update introduced a regression. Investigating strange bugs that appear only in certain environments.
Remember these famous frontend CVE we had recently? The kind that suddenly appears everywhere and triggers a small wave of panic.
Does it affect our project? Fortunately not.
Now the only remaining task is spending a week replying to emails explaining that we don’t even use React 😉
The Real Skill
Writing code can look like copy-paste. Architecture is just a high-level copy-paste. But debugging is pure problem solving.
It forces you to understand the system deeply, follow data flows, analyze logs, and test hypotheses. Sometimes no Stack Overflow answer helps. Sometimes AI tools don’t help either.
You simply need to think.
And after hours of investigation, the root cause often turns out to be something surprisingly small: a missing property, an incorrect configuration, or a single line of code.
Debugging sometimes feels a lot like detective work.
The Responsibility
This reminds me one story.
Remember that senior that had to help me no matter what? Now I'm that senior for my teammates.
Some time ago, a junior developer came to me because, while implementing a complex form, he hadn’t noticed that validation wasn’t working in one place. He had no idea how to fix it and had already been stuck on it for quite a while. Deadlines were approaching.
I tried to guide him, pointing out a few places in the code that might help, but it didn’t work. In the end, I had to sit down and dig into that piece of code myself.
The day before the deadline (I finished at 1 a.m.).
Was it stressful? Maybe. Should he inform me about this issue earlier? Absolutely. But sometimes that's the reality.
So… Am I Unhappy About That?
Do I feel unsatisfied because I don’t ship as many features as I did when I was a junior?
Not at all.
After all — who didn’t want to become a detective as a kid?
Senior developers are basically software detectives. 🕵️♀️