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0+Years in Production
// Frontend developerHi! I'm unkpn.
Specializing in architecting and building complex, high-performance SPA/SSR applications with React and Next.js in large-scale product environments. Main stack: TypeScript, Zustand, TanStack Query, and Tailwind. Focused on resilient client architecture, predictable state management, and 0ms feedback.
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Experience
Next Chapter
Now?Frontend Developer
Open to frontend roles and high-impact product teams. Ready to contribute deep expertise in architecture, performance, and clean code.
Avito tech
2024 - PresentFrontend Developer
- Initiated and defended a Tech Design on migrating pages from SSR to ISR with Redis caching, reducing peak server CPU load.
- Built a custom recursive JSON-tree validator in TS for a WYSIWYG editor and designed a local auto-save draft system using Zustand.
- Implemented Optimistic UI Updates pattern using TanStack Query mutations, reducing visual feedback to 0ms.
X5 tech
2022 - 2024Frontend Developer
- Integrated Zustand with TanStack Query to separate client and server state, ensuring a Single Source of Truth and cutting duplicate API requests by nearly 4x.
- Designed a bulk operations system for servers that guarantees state consistency between the UI and backend.
- Offloaded heavy data filtering and pagination to the server-side, migrating legacy state from React Context to Zustand + TanStack Query to eliminate browser micro-freezes.
Generation IT
2021 - 2022Frontend Developer
- Built a custom wrapper over fetch with 401 error interception and a seamless SPA redirect to /login, eliminating cyclic dependencies in the routing.
- Optimized media assets via Lazy Loading, WebP and web fonts, significantly improving Core Web Vitals metrics for mobile devices.
- Engineered and aligned REST API contracts with the backend team using JSON schemas, speeding up new feature development by 3x.
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