FUNDAMENTALS · ENGINEERING · SYSTEMS

FUNDAMENTALS · ENGINEERING · SYSTEMS

From software
engineer to
AI engineer.

From software
engineer to
AI engineer.

You already know how to build software. I share what years of building AI systems have taught me, across the whole stack: hardware, training and inference, system design, and keeping it all running in production. Free in the newsletter, and in more depth in the courses I’m building.

You already know how to build software. I share what years of building AI systems have taught me, across the whole stack: hardware, training and inference, system design, and keeping it all running in production. Free in the newsletter, and in more depth in the courses I’m building.

Join the waitlist for The AI Atlas. One email when it’s out.

Join the waitlist for The AI Atlas. One email when it’s out.

Over 40,000 engineers learn with The AI Merge. NVIDIA creator partner since 2025.

START HERE

Where AI work usually gets stuck

Usually in one of three places. Start with the one closest to the problem on your desk this week.

Fundamentals

You’re not sure where AI fails.

Models fail differently from the code you’re used to. Once you know how they turn inputs into predictions, and what memory and hardware limit, you can reason about a failure instead of guessing.

START WITH

Fundamentals

You’re not sure where AI fails.

Models fail differently from the code you’re used to. Once you know how they turn inputs into predictions, and what memory and hardware limit, you can reason about a failure instead of guessing.

START WITH

Engineering

You still own the quality.

Speed is the easy part now. Keeping a codebase that both humans and coding agents understand is trickier. Coding changes, but standards and best practices still stand solid.

START WITH

Engineering

You still own the quality.

Speed is the easy part now. Keeping a codebase that both humans and coding agents understand is trickier. Coding changes, but standards and best practices still stand solid.

START WITH

Systems

Your demo isn’t production-ready.

The flashiest AI products stop at nice demos and don't check the required boxes for a production rollout. Learn to design and think in systems, rather than individual components.

START WITH

Systems

Your demo isn’t production-ready.

The flashiest AI products stop at nice demos and don't check the required boxes for a production rollout. Learn to design and think in systems, rather than individual components.

START WITH

Who The AI Merge is for

No research background needed. If you build and run software, you already have most of what it takes. What you won’t find here: prompt tricks, tool roundups or hype.

BACKEND & FULL-STACK

Someone just asked you to “add AI” to the product.

Whether you’ve used AI before or not, it doesn’t have to be a black box. Once you see how a model really works, building with it stops feeling like guesswork.

SENIOR & STAFF ENGINEERS

You’re the one who has to make the call.

First question: do you need AI at all? If you do, which kind? Hosted API or your own model, cloud or on-device, managed or self-run. I show how to weigh each option before you commit.

MOVING INTO AI ENGINEERING

You want AI to be your actual job.

This is the order I’d learn it in if I were starting again: fundamentals first, then engineering with AI, then whole systems, with something to build at each step.

TECH LEADS

Your team is shipping code written with agents.

Every line an agent adds is a line your team has to keep running. Coding with AI only pays off when it builds on the practices you already have: standards, reviews, tests, and what your team already knows.

WHY THE AI MERGE

Where software engineering
and AI merge.

In mid-2023, AI could barely build a webpage. Today it writes real parts of real systems. Powerful, and easy to misuse if you don’t know what the model is doing, how to efficiently use hardware or understand the full system you're working on.

In mid-2023, AI could barely build a webpage. Today it writes real parts of real systems. Powerful, and easy to misuse if you don’t know what the model is doing, how to efficiently use hardware or understand the full system you're working on.

In mid-2023, AI could barely build a webpage. Today it writes real parts of real systems. Powerful, and easy to misuse if you don’t know what the model is doing, how to efficiently use hardware or understand the full system you're working on.

The AI Merge covers the full path: how AI works, the infrastructure, engineering with it, and designing, shipping and running AI systems in production.

The AI Merge covers the full path: how AI works, the infrastructure, engineering with it, and designing, shipping and running AI systems in production.

The AI Merge covers the full path: how AI works, the infrastructure, engineering with it, and designing, shipping and running AI systems in production.

Explaining AI, building AI, and building with AI.

That’s the merge.

Explaining AI, building AI, and building with AI.

That’s the merge.

Explaining AI, building AI, and building with AI.

That’s the merge.

HOW I TEACH

See the whole system first

Every topic starts with a diagram of the full system, so you know where a piece fits before going deep on it. It’s how I learn too: if I can’t draw it, I don’t understand it yet.

Weigh the trade-offs

For each part you see the real options, what each one costs and how it breaks. You get the reasoning behind a choice, so you can make a different one for your own setup.

Then build it, with AI

Only then do we build, with coding agents used the way I use them at work: one piece at a time, the design as context, every change reviewed.

Courses

The first is The AI Atlas. A hands-on course on vision and agent systems comes next.

The AI Atlas

240+ slides: how modern AI systems actually work.

Most explanations cover one layer and assume you know the rest. The Atlas draws the whole stack as one map, from the hardware up to the systems built on top, so you can see how each part depends on the others.

What you'll learn:

AI Hardware, GPUs, AI Accelerators

Foundations, training, and inference

Agents, applications, and AI systems

What you'll get:

240+ Visual Slides

200+ technical diagrams and system maps

Animated explanations for complex concepts

The AI Atlas

240+ slides: how modern AI systems actually work.

Most explanations cover one layer and assume you know the rest. The Atlas draws the whole stack as one map, from the hardware up to the systems built on top, so you can see how each part depends on the others.

What you'll learn:

AI Hardware, GPUs, AI Accelerators

Foundations, training, and inference

Agents, applications, and AI systems

What you'll get:

240+ Visual Slides

200+ diagrams and system maps

Animated explanations

A map of the AI stack, from hardware to deployment.

One-time purchase

Waitlist open

A few pages from inside the Atlas.

Sample pages from the Atlas. Use the arrows or swipe.

Two ways to hear from me.

Want the whole map?

The AI Atlas isn’t out yet. Join the waitlist and you’ll get one email when it’s out.

One email when the Atlas launches.

No spam. Unsubscribe any time.

Want the whole map?

The AI Atlas isn’t out yet. Join the waitlist and you’ll get one email when it’s out.

One email when the Atlas launches.

No spam. Unsubscribe any time.

Want the whole map?

The AI Atlas isn’t out yet. Join the waitlist and you’ll get one email when it’s out.

One email when the Atlas launches. No spam, unsubscribe any time.

Keep learning with The AI Merge.

New articles on AI fundamentals, engineering with agents and AI systems. 10,000+ engineers read along.

Free to read.

Unsubscribe any time.

Keep learning with The AI Merge.

New articles on AI fundamentals, engineering with agents and AI systems.

10,000+ engineers read along.

Free to read.

Unsubscribe any time.

FIELD NOTES

What I’ve shared lately

Everything else is on Substack

Things people ask me

Got a question that isn’t here? Reply to any Field Notes email. I read all of them.

What is The AI Merge?

An education brand for software engineers working with AI. Articles and courses on how AI works, engineering with it, and running AI systems in production.

Who is it for?

Engineers who already ship software and now work with AI: backend and full-stack engineers, senior engineers and tech leads.

Do I need a machine learning background?

No. If you’re comfortable with code and systems, you have what you need. The fundamentals are explained with an engineer’s questions in mind.

How do you approach a topic?

I map the whole system and its trade-offs first, then build. AI comes in once the design is clear. The guides follow the same order.

Where should I start?

Fundamentals if models feel like a black box, Engineering if you code with agents, Systems if you’re shipping AI features. The free articles are the easiest way in.

What’s free and what’s paid?

Articles and the newsletter are free. Courses are paid, one-time purchases with no subscription.

What is The AI Atlas?

The first AI Merge course: 240+ slides on how modern AI systems work, from hardware up. Join the waitlist and you’ll hear when it’s out.

Can we work together?

Yes. I’m an NVIDIA creator partner and take sponsorships from AI companies whose tools fit what I teach, as well as collaborations and talks. See the Work with me page.

Alex Razvant
Alex Razvant

I work on the systems I teach.

I work on the systems I teach.

I’m Alex Razvant. I’ve spent about ten years building software, eight of them on AI, at early-stage startups and at larger companies. That’s included peer-reviewed computer vision research, perception for an autonomous driving prototype on a BMW X5, vision systems running in retail stores, and a lot of work that isn’t AI at all: backends, microservices and the infrastructure under them.


Today I’m a Senior SWE & AI at Axon, working on large-scale AI systems end to end, from the models to the services and infrastructure that run them in production. I also help teams use AI tools and coding agents well, and much of what I teach on engineering comes out of that.


The AI Merge started as notes from that work, and it’s still made the same way: from systems I’ve worked on, not from announcements.

I’m Alex Razvant. I’ve spent about ten years building software, eight of them on AI, at early-stage startups and at larger companies. That’s included peer-reviewed computer vision research, perception for an autonomous driving prototype on a BMW X5, vision systems running in retail stores, and a lot of work that isn’t AI at all: backends, microservices and the infrastructure under them.


Today I’m a Senior SWE & AI at Axon, working on large-scale AI systems end to end, from the models to the services and infrastructure that run them in production. I also help teams use AI tools and coding agents well, and much of what I teach on engineering comes out of that.


The AI Merge started as notes from that work, and it’s still made the same way: from systems I’ve worked on, not from announcements.

More about my work

Interested in a technical collaboration or a talk?

Interested in a technical collaboration or a talk?

Work with me