Development services · Warsaw, Poland
I build dApp frontends, wallet flows and smart contract integrations on Ethereum, Base and Solana - connected to MetaMask, Trust Wallet and WalletConnect via Reown.

Wallet UX first: connect, switch network, show balance and errors users understand.
One Reown / WalletConnect config covers MetaMask, Trust Wallet and dozens of mobile wallets.
EVM on Ethereum and Base; Solana when you need speed and low fees - right chain for the product.
Testnet → staging → mainnet; ABIs versioned, contract addresses in config not hardcoded.
Fallback UI when no wallet is installed - link to install or use WalletConnect QR on mobile.
Development + SEO
dApps need users from Google too - I build Web3 products and run SEO for landing pages that explain your project clearly.

About me
Full-stack developer · 15+ years creating web
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