Piotr Kafel
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piotrkafel.com
Piotr Kafel
@piotrkafel.com
Staff Engineer @woltapp on a mission to help others grow into a technical leadership role. Ex @GrouponEng @ShopifyEng.
Yesterday worked on changes in code base. I had a very particular way I wanted to solve a problem. I described all the changes I want to make to Cursor.

For the first time every AI told me "Nah bro, your suggestion is bullshit. Let me do it in a completely different way"🤯
February 3, 2026 at 11:12 AM
Im currently reading The Devils by Joe Abercrombie... What a book 😂

“On the contrary, I am a great admirer of the tenets of your religion. I merely find it a shame that the Saved are, as a rule, so little like their Saviour.”
January 23, 2026 at 11:05 PM
Share with your annoying colleges who like to waste time on pointless discussions (especially if they discuss stupid things like this).

www.tabsvsspaces.sh
Tabs vs Spaces - Cast Your Vote
The eternal developer debate. Cast your €1.99 vote: Tabs or Spaces? Put money where your mouth is.
www.tabsvsspaces.sh
January 23, 2026 at 10:59 PM
I tried Claude's code review plugin yesterday... Aaaaaand all my tokens are gone 😅
January 22, 2026 at 3:07 PM
Tip for vibe coders:

If you are using Vercel (or other similar SaaS) remember to black list .md files. At least Vercel by default will make your claude.md publicly available.
January 19, 2026 at 4:34 PM
I'm wondering if the natural grumpiness of Easter Europeans is one of the reasons why they are such good engineers (they always assume things will go wrong) 🤔
January 15, 2026 at 9:55 PM
I cannot build frontend but I can build half decent backend.

Since I have hired this guy, called Claude, building things is so much fun. I can focus on what I know and let him handle the UI.

I need to write him a proper recommendation on LinkedIn. He has a bright career ahead❤️
January 4, 2026 at 9:40 AM
"There are no shortcuts around quality and quality starts with people" Steve Jobs
December 28, 2025 at 3:28 PM
Merry Christmas folks!

I hope you will give your friends and family undivided attention instead of just checking from time to time if you agent finished implementation of next feature 😅
December 24, 2025 at 2:37 PM
Found on the wall of Uber Arena in Berlin ❤️
December 21, 2025 at 8:14 AM
AI just made programming fun again ❤️
December 15, 2025 at 10:39 PM
I got bored by checking if my agent finished working and decided to implement some features myself... Like a damn savage!
December 14, 2025 at 8:45 PM
We can now write code so fast that reviewing it becomes a bottleneck.

Im looking forward to first company that will decide that AI based PR review is enough.
December 13, 2025 at 5:02 PM
Writing code has never been this cheap
December 13, 2025 at 10:05 AM
I just wrote:

git stash poop

How is your day going? 😂
March 24, 2025 at 9:01 AM
Coffee with the view... Good morning!
March 18, 2025 at 7:44 AM
This week I wrote an idempotent POST resource. Sue me!
March 16, 2025 at 5:20 PM
So much of my liking a book depends on my schedule.

I can read the most amazing book but if I got an important project I need to deliver there is no way I will like a book if I can read 1-2 chapters per week only.
March 9, 2025 at 1:06 PM
Back in my days...

Just joking, it's way before my days but it's pretty cool ❤️
March 9, 2025 at 12:32 PM
Going for a run after sitting through the whole winter is such a pain 😰
February 23, 2025 at 10:52 PM
I have enough of this winter... 🙄
February 16, 2025 at 11:14 AM
All those companies that claim they will replace software engineers with AI are up for a nice surprise 😅
February 16, 2025 at 8:37 AM
Just noticed @datadoghq is hiring Staff Engs in Germany. This is new, right?

I havent seen engineering job offers from DD in Germany before 🤔
February 15, 2025 at 10:29 PM
Have I mentioned that I will see @linkinpark this year? ❤️
a man and a woman in suits and ties are screaming
ALT: a man and a woman in suits and ties are screaming
media.tenor.com
February 15, 2025 at 9:57 AM
My son infected me and my wife. Lovely end of a weekend.
a woman in a suit says everything hurts and i 'm dying .
ALT: a woman in a suit says everything hurts and i 'm dying .
media.tenor.com
February 9, 2025 at 6:47 PM