Development services · Warsaw, Poland

Full-stack Web3 Developer Ethereum, Base & Solana

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

Web3 developer Ethereum Base Solana Warsaw

Web3 developer services

  • dApp frontends on Ethereum, Base and Solana
  • Wallet connection: MetaMask, Trust Wallet, Coinbase Wallet, Rainbow, Phantom (Solana)
  • WalletConnect and Reown (AppKit) - one integration, many wallets
  • Smart contracts: Solidity on EVM (Ethereum, Base), audit-ready Hardhat setup
  • NFT mint pages, marketplaces and token-gated access
  • DeFi dashboards and on-chain data (ethers.js, wagmi, Solana web3.js)
  • Crypto checkout and SIWE (Sign-In with Ethereum) auth

How I build Web3

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.

Chains & tooling

EthereumBaseSolanaSolidityHardhatethers.jswagmiWalletConnectReownweb3.jsIPFS

Development + SEO

We do not only build - we promote

dApps need users from Google too - I build Web3 products and run SEO for landing pages that explain your project clearly.

Website promotion & SEO
Viktar Liukevich

About me

I'm Viktar Liukevich

Full-stack developer · 15+ years creating web

I am Viktar Liukevich, a Web3 developer in Warsaw. I ship wallet connect, mint sites and contract hooks on Ethereum, Base and Solana - same stack as your main site (React, Next.js, Astro).
I integrate MetaMask, Trust Wallet, Coinbase Wallet, Rainbow and others through WalletConnect and Reown (AppKit) so mobile and desktop users connect in one flow.
For Solidity audits, Solana programs or heavy DeFi protocol work I bring in blockchain partners in Poland, Europe and the USA under NDA. You talk to me; I own the frontend and integration.
300+
Completed Projects
90+
Clients
10+
Partners

Advantages

  • 15+ years working for myself
  • Wide technology stack
  • Rapid development
  • Warranty and support
  • Global quality standards
  • Working with clients worldwide
  • Innovative technological solutions