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.
Building a User Experience Analysis and Optimization System for Mobile Applications

Building a User Experience Analysis and Optimization System for Mobile Applications

Remember that time you released an app update and watched your engagement metrics plummet? Yeah, we’ve all been there. The frustrating part? You had no idea why it happened until weeks of detective work revealed that a single button color change was confusing users. If only you had been tracking user behavior systematically. Building a robust system for analyzing and optimizing mobile app user experience isn’t just about collecting data—it’s about having a structured approach to understanding what your users actually do versus what you think they do....

December 31, 2025 · 10 min · 2044 words · Maxim Zhirnov
Redis Caching in Go: From Zero to Production-Ready Implementation

Redis Caching in Go: From Zero to Production-Ready Implementation

If your Go application feels sluggish under load, constantly hammering your database like a developer at 3 AM debugging production, then you’ve come to the right place. Redis caching isn’t just a performance optimization—it’s the difference between a service that scales gracefully and one that collapses under its own weight. In this comprehensive guide, I’ll walk you through everything you need to know about integrating Redis into your Go applications, from basic setup to production-ready patterns....

December 30, 2025 · 9 min · 1821 words · Maxim Zhirnov
Ignoring Industry Trends to Focus on What Works: A Pragmatist's Guide to Sustainable Development

Ignoring Industry Trends to Focus on What Works: A Pragmatist's Guide to Sustainable Development

Every week, without fail, a new framework lands on Hacker News. Every month, a “revolutionary” architecture pattern emerges from a tech conference. Every quarter, some startup with $50M in funding tells us that the way we’ve been building software for the last decade is now categorically wrong. And you know what? They’re probably not wrong. They’re just… incomplete. Here’s the thing nobody wants to hear at tech conferences: the best tool for your problem might be the one you already know how to use....

December 30, 2025 · 16 min · 3228 words · Maxim Zhirnov
JavaScript Bundlers Showdown: Webpack vs Rollup vs Parcel in 2025

JavaScript Bundlers Showdown: Webpack vs Rollup vs Parcel in 2025

If you’ve ever spent an afternoon debugging a mysterious build error only to discover it was a typo in your webpack config, you know the struggle of choosing the right JavaScript bundler is real. The bundler landscape has evolved dramatically, and what was state-of-the-art five years ago might be causing you unnecessary pain today. Let me be frank: there’s no one-size-fits-all answer to “which bundler should I use?” But there absolutely is a right answer for your project, and that’s what we’re here to figure out together....

December 29, 2025 · 10 min · 2081 words · Maxim Zhirnov
Writing Unmaintainable Code as a Strategy for Longevity: A Satirical Guide to Ensuring Permanent Employment

Writing Unmaintainable Code as a Strategy for Longevity: A Satirical Guide to Ensuring Permanent Employment

The Ultimate Job Security Hack Nobody’s Talking About Let’s be honest: in the world of software development, there’s an unspoken strategy that’s been floating around for decades. It’s whispered about in dark corners of tech forums and hinted at in Reddit threads at 3 AM. I’m talking about the art of writing code so deliberately obtuse, so magnificently cryptic, that you become the only person on Earth capable of maintaining it....

December 29, 2025 · 8 min · 1623 words · Maxim Zhirnov