
Kirill Zima
🚀 UX Consultant · I boost conversions by fixing your UX · 1521 A/B tests · 279 user interviews
We thought we had reached the point of diminishing returns after running dozens of tests on our onboarding paywall. But after one call with Kirill we were able to increase the trial start rate of our paywall by 27.4% 🎉 HIGHLY RECOMMENDED THAT YOU WORK WITH HIM
That was an absolutely top-notch experience. Getting an expert’s perspective is incredibly valuable, and it’s taken me days to unpack all the ideas and turn them into actionable to-do lists for implementation. No fluff, just straight to the point—I loved it. Thanks, Kirill. And while 30 minutes is 30 minutes, that time was certainly used well. Every second counted.
I had a very productive 30 minute chat with Kirill. I asked for help on improving conversion rates, and he walked through the entire user flow of my website and provided real-time feedback from the perspective of a new user. I left the call with a page of notes that I am excited to test! He has a keen eye for design and UX best practices, and would highly recommend.
Bio
Hey, I'm Kirill Zima, a UX consultant based in Amsterdam 🚀 I help boost conversion, acquisition, onboarding, and retention metrics by fixing UX and making it human-friendly, simple, and clear. 👨💻 15 years in data-driven UX for E-commerce. 🔬 Ran 1521 A/B experiments and sat down with 279 users to learn what matters. 🏆 1B+ user experiences improved. My superpower is being able to see and fix issues in user journeys. I help businesses get happier customers, and increase revenue, plus I help people enjoy their digital experiences. I'm equally comfortable working with any platform (desktop, mobile, custom devices) because UX is about people, not computers. Book a session with me if you: - Want to boost conversion and other product metrics - Know your UX is not great and not sure how to improve it - Tried to fix things but it didn't work out - Need an expert advice on UX 👉 Check out my website https://kirillzima.com Chat soon!
Expertise
Building a team
I hired over 25 designers, conducted 300+ craft interviews, and helped two dozen designers find their dream job. If you are looking to hire your first designers but not sure how to assess them, poke me, I'll be happy to help.
Conversion rate optimisation
Over the past 15 years, I ran 500+ A/B tests and helped 50+ companies increase conversion rate. For me it's a game I love to play: I can see what's wrong and why, and I'll be happy to help you fix it.
Design / UX
15 years in data-driven UX for e-commerce and SaaS products and services. Ran 500+ A/B tests and sat down with 200+ user interviews to learn what matters. I help find and fix UX issues to unblock user journeys.
Idea validation
Everyone has ideas, but not all ideas are made equally. It's important to prioritize those that are high value and low effort. I validate ideas using quantitative and qualitative methods, and happy to share my knowledge with you.
User research
I love doing user research because you never know what insights you gonna find. I conducted over 200 user interviews and organized multiple field research trips for my team. I believe that the best research questions are about past experience, humans are terrible at predicting the future.
Toolkit

Figma
12 years of experienceFull working proficiency with Figma — from wireframes to production-ready design mock us. This is one of the tools I'm using daily. Can teach a class on how to use Figma.