Head of Engineering Shopify: "AI writes the code, AI reviews the code. Your job is just to write the loops around it." 26 minutes on how AI changed the way 3,000 engineers work inside a single company. Ignoring it while everyone else uses AI to do more is the... fastest way to fall behind. Watch it, then read the step by step guide on loops below.show more

AI writes the code, AI reviews the code. what exactly are the engineers doing then? apparently that's the right question

They are building loops

exactly. and most of them don't know it yet

3000 engineers shifting workflow like this is a way bigger signal than any benchmark

Nice point, agree

This is very neat way of saying: we will no longer understand what is going on, pretty soon, so prepare for when shit hits the fan.

This is recipe for disaster. Even with high skeptical review agent architecture drift can happen. See the disaster with AWS or meta. You need to have human involved in key points and let AI do their slop on uncritical parts

Can't AI write loops?

3000 engineers coding an e-commerce ecosystem? Not something I’d trust

Feeling this a lot while building our own loops. The real work is context, tool boundaries, checks, and knowing when a human has to stop the loop. Which I don't sometimes :D

Amazing watch bro. Booking

One of the best presentations I’ve seen recently.

this is something new cursor devs know what AI developers need

Humans write the code that still matters, and I don't think that's changing anytime soon. Loops are good, but only for very specific scenarios. It's all sunshine and rainbows when shown in a diagram like the one above, but it doesn't work that way. Not yet, anyway.

claude for 90% is coded by claude, we should learn from the best

It is easy to write complex instructions using programming language than English. New AI native vibe coders can't review AI generated code. I am struggling to steer AI even though I clearly know requirements, have experience & know the system intimately.

We will fall behind a company with 3k devs if we don't follow what they do. Next, the same guy will explain how the 700 devs they have use AI. And then they'll claim they have to raise their prices just to keep delivering great solutions for clients while employing 200 devs.

Thawar's quote is the post: "AI writes, AI reviews, your job is the loops around it." That's a substantive description of where engineering work is moving - orchestration, scoping, verification gates. Watch the talk for that. Skip the "fall behind" framing - fear isn't curriculum.

my friends sell stuff on shopify gonna send em this video and article!

Great idea

loops are the real product, great framing. saved

do u use loops yourself?

Exaggeration

"you write the loops around it" is such a good way to put it. you're not typing anymore, but deciding what's worth building and catching where the ai is wrong but really confident about it 😂

this tracks with what a lot of people quietly already do, just nobody's framed it this clean before

writing the loops is where the real leverage is now

so I can stop being the loop between tweets and Claude. just run agents that reply on their own. beautiful.

agree software development mirrors the scientific method so it's a MUST nowadays

As a user, what are you seeing shipped by Spotify that confirms this breakthrough in development

i should to spending my time with watching this video appreciate Anatoli

AI doesn't write code in embedded and in C, C++ projects. You also won't be using AI to write code in any mission critical domain. This video is not entirely true

I disagree that you have to throw away prototype code. AI can just generate production code, so why generate throwaway code? Just make sure you set the environment of the right way and there’s no reason to have to throw it away.

🍻 to their security team. That sounds like a nightmare

With genesis you just need to write to it what you want and review and test his code after and you have it. Loop is already in there with 24/7 autonony and work mode and it will keep working on project until it thinks the project is complete and ready for your review

OMG, The Goal. AI coding collapses everything back to the actual point — solving problems. What I call OG FDE.

I'm curious how much human review still happens at Shopify. Even if AI writes and reviews code, someone has to be responsible for the final outcome.

Tell it to the interviewers at all the companies requiring strong DSA skills

Their status page shows

Shopify’s 20% productivity boost proves AI writes code, not loops. The real job is context engineering: framing problems for AI. If you ignore it, you’re stuck in the old loop while others scale. Specific data, not hype.

my only question is that with how limited the token that we can use is it even worth making all the code AI written??