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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.
Why Most Developers Shouldn't Write Their Own File Systems

Why Most Developers Shouldn't Write Their Own File Systems

So you’ve decided to build your own file system. Congratulations on choosing the software equivalent of constructing your house foundation while simultaneously building the walls, roof, and plumbing. I admire your ambition, truly. But let me save you six months of debugging and at least three mental breakdowns by explaining why this is almost certainly a mistake. The Seductive Trap of “We Can Do This Ourselves” Here’s the thing about file systems—they’re deceptively simple in theory....

December 25, 2025 · 9 min · 1843 words · Maxim Zhirnov
The Art of Writing Non-Portable Code: When It’s Beneficial to Lock-In

The Art of Writing Non-Portable Code: When It’s Beneficial to Lock-In

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December 24, 2025 · 1 min · 2 words · Maxim Zhirnov
WebAssembly Performance Optimization: From Sluggish to Lightning-Fast

WebAssembly Performance Optimization: From Sluggish to Lightning-Fast

If you’ve ever built a WebAssembly application and watched it run slower than you expected, you’re not alone. The good news? WebAssembly has the potential to deliver near-native performance in the browser. The catch? You need to know how to unlock that potential. I’ve spent considerable time wrestling with WebAssembly performance bottlenecks, and I’m here to share what actually works. This isn’t your typical “use -O3 flags and call it a day” guide....

December 23, 2025 · 8 min · 1693 words · Maxim Zhirnov
Should Developers Unionize Against AI Pair Programmer Mandates? A Nuanced Take

Should Developers Unionize Against AI Pair Programmer Mandates? A Nuanced Take

When your manager casually mentions that the company is “mandating AI pair programming for all new features” in the same tone they’d use to describe a new coffee machine, it hits different. But before you dust off your protest signs, let’s talk about whether unionization is actually the answer—or if we’re solving the wrong problem entirely. The AI Pair Programming Moment We’re Living In We’re at an inflection point. Artificial intelligence coding agents are no longer science fiction—they’re in your IDE right now, probably sitting there like an overeager intern who never sleeps, never asks for vacation, and never complains about pull request feedback....

December 23, 2025 · 8 min · 1682 words · Maxim Zhirnov
Overcoming Imposter Syndrome in the IT Industry: A Practical Guide to Silencing Your Inner Fraud Police

Overcoming Imposter Syndrome in the IT Industry: A Practical Guide to Silencing Your Inner Fraud Police

The Uninvited Houseguest Nobody Talks About You’ve just shipped a feature that’s been in production for three months. It’s working perfectly. Your team congratulated you. Your manager praised your work. And yet, somewhere in your brain, a tiny voice whispers: “You got lucky. They’ll figure you out soon.” Welcome to imposter syndrome—the psychological equivalent of having a persistent houseguest who keeps rearranging your accomplishments and telling you they don’t belong to you....

December 22, 2025 · 10 min · 2021 words · Maxim Zhirnov