Structure apps, manage state, design the data layer — and walk into frontend system design interviews ready.

"Those are very rare and the frontend landscape could really catch up with the principles Dmitrii teaches, especially thinking in terms of systems and architecture.
The Pre-AI Era
The role was about code output, framework expertise, and memorized docs.
The Post-AI Era
Success means designing systems and managing trade-offs. You are the pilot.
"I'm really enjoying the course so far — there's a lot of value in it and I'm learning a ton.
Every module teaches you to make — and defend — a specific architectural decision.
Vertical slices, feature folders, scalable architecture for teams.
Code organization that scales without becoming a mess.
How to evaluate React vs. Vue vs. Svelte based on team size and constraints.
When local state is enough, when to add Zustand, when Redux makes sense.
Trade-offs of each approach and how to choose for your project.
Polling vs. SSE vs. WebSockets — and what breaks at scale.
Offset vs. cursor vs. keyset — performance implications explained.
What to test, what to skip, how to build confidence without wasting time.
CI/CD patterns, deployment strategies, rollback plans.

8 Modules · 38+ Lessons
Structure apps that scale with your team
Choose the right tool for your context
Know when to use what — and when to use nothing
Navigate the REST vs. GraphQL decision
Pick the right approach for your scale
Implement patterns that actually perform
Test what matters, skip what doesn't
Deploy with confidence

Nice to meet you.
I'm a Senior Frontend Engineer based in Berlin with 8 years of experience.
I've led development teams, built production systems used by millions of users, and now I share everything I know on YouTube.
Frameworks change. AI gets better. The ability to make technical decisions? That only gets more valuable.
1 hour of dev consulting
€110–€185
CodementorFor a fraction of the cost of a single call, you get the complete architecture system, including all future updates.
8 modules, 38 lessons, 7+ hours, English with subtitles
No VAT charged
Full repo with working examples and AI agent templates.



Trusted by 150+ developers
Invoice included — works with company learning budgets.
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As a frontend dev who has also worked for 8+ years now I tell you the man is sharing priceless information in this video, take it and apply it in your dev process.
Thank you. Your videos helped me a lot. I passed an interview with questions about Web Vitals and performance, which you explained in another video on your channel.
Thank you so much for your videos, I'm currently on the path to be a senior engineer and your videos help ALOT.
As a mid-level front-end developer who faced working on MVVM, it confuses me why I was working on this thing. This video helped me a lot in understanding the importance of the frontend architecture. Thank you so much, I really appreciate it.
Everything you need to know about the course
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Contact Support"The course was fantastic — I genuinely loved every minute of it. The content was clear, practical, and really well thought out.

55 pages from MVC to FSD and Atomic Design. How each pattern works, when to use it, and how to apply it.