Hi there 👋

My name is Maksim Zhirnov. I’m a Growth Marketing Expert & MarTech Engineer. I help tech companies scale through data-driven marketing strategies, powered by my engineering background. I love building marketing systems that drive growth and sharing insights on the intersection of technology and customer acquisition.
How to Review and Harden AI-Generated Code Before It Hits Production

How to Review and Harden AI-Generated Code Before It Hits Production

The future is here, and it’s generating code faster than your coffee maker brews espresso. But here’s the catch: just because an AI can write code in milliseconds doesn’t mean that code is production-ready. In fact, treating AI-generated code as gospel truth is like trusting a GPS that sometimes decides roads don’t exist anymore. You can do it, but you’ll probably end up in a lake. If you’re integrating AI into your development workflow—and let’s be honest, most of us are—you need a bulletproof strategy to ensure that what lands in production is robust, secure, and doesn’t make your future self want to flip a table....

February 1, 2026 · 15 min · 3008 words · Maxim Zhirnov
Coding Bootcamps: Democratizing Tech or Creating Disposable Talent?

Coding Bootcamps: Democratizing Tech or Creating Disposable Talent?

There’s a peculiar moment that happens every few weeks in the tech industry: someone discovers coding bootcamps and declares them either a revolutionary pathway to meritocracy or an elaborate Ponzi scheme wrapped in motivational posters. The truth, as with most things that matter, lives uncomfortably in the middle—but the middle is where the interesting questions live. The Great Democratization Narrative Let me start with what looks like an unambiguous success story....

February 1, 2026 · 8 min · 1684 words · Maxim Zhirnov
Implementing Circuit Breakers, Retries, and Timeouts Without Extra Drama

Implementing Circuit Breakers, Retries, and Timeouts Without Extra Drama

Let me be honest with you: if you’ve ever had a microservice call hanging indefinitely while your application slowly suffocates under thread exhaustion, you know the special kind of panic that follows. Your users are refreshing their browsers. Your alerts are screaming. Your coffee is getting cold. Nobody has time for that drama. The good news? Three resilience patterns can save you from this nightmare: circuit breakers, retries, and timeouts. And unlike the theatrical presentations you’ll see in some tutorials, implementing them is straightforward when you understand what each one actually does....

January 31, 2026 · 9 min · 1827 words · Maxim Zhirnov
The Obsession with Immutability: Are We Just Afraid of Understanding State?

The Obsession with Immutability: Are We Just Afraid of Understanding State?

There’s a peculiar phenomenon sweeping through modern software development like a caffeinated squirrel through a nut factory. Everyone’s talking about immutability. It’s in every JavaScript framework worth its salt, it’s baked into React’s philosophy, it’s the foundation of Redux, and functional programming evangelists won’t shut up about it at conferences. But here’s the uncomfortable truth nobody wants to admit: we’ve collectively turned immutability into a cargo cult, reverently copying the rituals without fully understanding what problem we’re actually solving....

January 31, 2026 · 12 min · 2538 words · Maxim Zhirnov
Practical Caching Patterns: TTL, Cache-Aside, and Write-Through Explained with Real Code

Practical Caching Patterns: TTL, Cache-Aside, and Write-Through Explained with Real Code

If you’ve ever watched your database buckle under load while your cache sits there pristine and underutilized, you know the pain. I’ve been there—watching connection pools max out, query times climb into the seconds, and users watching spinners that never complete. The problem? A caching strategy that looked great on a whiteboard but fell apart in production. Caching isn’t black magic. It’s more like seasoning in a recipe—use it wrong, and you ruin the dish....

January 30, 2026 · 12 min · 2538 words · Maxim Zhirnov