Klarna CEO's AI Coding Antics: A Cautionary Tale

Tuesday, September 23, 2025

Klarna's CEO, Sebastian Siemiatkowski, has taken a hands-on approach to tech development by making his team critique his AI-generated prototypes. Spoiler: it's not going as planned!

Klarna CEO's AI Coding Antics: A Cautionary Tale

If you’ve ever wished your boss would do your job for you (and we mean really do it, with all the blunders that come along), then this story might just be the cringe-worthy hilarity you didn’t know you needed! 😅

The Boss vs. AI 🤖

Enter Sebastian Siemiatkowski, the CEO of Klarna, who recently decided to dabble in something he’s never done before: coding. With all the bravado of a first-time doodler, he has taken to AI-assisted coding. Now, instead of focusing on the broader company strategy, he’s busy whipping up prototypes using AI tools like Cursor that supposedly generate code in about twenty minutes! Let’s just say, not everyone is on board with this.

“Nothing worse than a boss who thinks they can do your job.”

  • The collective sigh of employees everywhere.

The Podcast Revelation 🎙️

In a recent episode of the podcast Sourcery, Siemiatkowski made waves for openly admitting his newfound hobby of vibe coding—yes, you heard that right. He’s creating prototypes that he then makes his professional engineering team scrutinize. We can only imagine the eye rolls that ensue! 🙄

He claims he’s doing this to spare his engineers from the chaos of half-formed ideas. But let’s face it, how can a CEO, who has never coded before, effectively gauge what’s viable?

Testing Ideas—The Wrong Way? 😬

His logic? “Rather than disturbing my poor engineers, I’ve crafted these ideas myself!” Noble intentions, but might we suggest sticking to strategic leadership? Siemiatkowski even acknowledged falling prey to the AI’s flattery: “The AI tells me everything I create is great!” Ah, the sweet whispers of technology! 🍭

Self-Awareness: The Silver Lining? 🌈

To his credit, he exhibits some awareness of the comedic disaster unfolding. He reflects that working with AI has helped clarify his thoughts for discussions with the team. While that seems beneficial, one has to wonder—does this really excuse the chaos it’s causing in his engineering department? 🤷‍♂️

A Pattern in Fails: Declaring AI the Savior 🔄

Before this foray into coding, Siemiatkowski made headlines by cutting his workforce nearly in half, substituting many roles with AI solutions. It turns out, this wasn’t the miracle cure he envisioned; Klarna ended up rehiring humans after realizing the irreplaceable value they brought.

Funny enough, the vibe coding trend has turned into a new economy, with developers needed to mend the errors left by AI-generated messes—yep, the AI solution might cause more problems than it solves! 🛠️ And guess what? Over 95% of developers report spending extra time fixing AI code errors. Ouch!

For the Record 📊

A recent survey by Fastly found developers regularly grumbling about AI slowing their workflows rather than streamlining them. Who would’ve thunk it!?

So, What’s the Takeaway? 📝

If there’s anything to learn from this dramatic saga, it’s that just because you can use AI to code, doesn’t mean you should—especially when you lead a team of actual coders. It's a slippery slope when a CEO wants to take on the challenge of coding without any experience.

As they say, “With great power comes great responsibility!” So what will Siemiatkowski do next? Perhaps the next step is to let the professionals do their jobs and offer ideas that are a tad more grounded. Here’s to hoping! 🍻


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Let’s chat in the comments! What do you think of this trend of bosses coding? Is it a hit, or a total miss? 💬

Source: Gizmodo