witcher

Built decentralized applications (dApps) and Web3 games using Wagmi, Viem, Ethers.js. Enabled seamless wallet integrations, on-chain transactions, swaps, deposits/withdrawals, NFT minting, and reward systems across multiple blockchains (EVM, Sui, TON). Developed Telegram Mini Apps with native authentication, Telegram Stars payments, and Ton blockchain integration. Implemented Telegram Web App APIs for event handling, cross-platform UI consistency, and Story Share API integration.

Mobile-first web app. Fan quizzes on bloggers' videos (relationships, psychology, etc). Gamification case with a sticker reaction to each fan’s quiz response. Mini CRM for model agencies. Help manage chatter's work, accounting for all revenues and salaries, price and content analytics.

Marketing & Sales Templates Platform. SEO +218% growth organic traffic within 4 months. 179,000+ visitors per year. CTR from Blog to Landing Page has been increased from 26.6% to 35.9%. +260% revenue growth within 5 months.

Tamagotchi, that can be fed from the Likes in your Instagram & TikTok. From scratch to 70K registered gamers. DAU 8100+ users. Product features and UX dev: CRR 7D from 1.3% increased to 19.7% in the second iteration. CRR 1D - 61.9%. Startup-participant in The NEST Acceleration Hub.