[SYS]KK.PORTFOLIO / V1.0

What I Build

Blockchain & Web3 Development Services

I help startups and businesses turn Web3 ideas into functional digital products, from decentralized applications and wallet-connected websites to smart contract integrations and blockchain-powered interfaces.

Service / 02

Web3 Website Development

Create professional, responsive Web3 websites for blockchain startups, decentralized products, and businesses that need modern digital experiences.

What you get

  • Responsive Web3 websites
  • Blockchain startup landing pages
  • Modern frontend interfaces
  • Custom UI components
  • Website deployment support

Technology stack

  • React.js
  • Next.js
  • JavaScript
  • TypeScript
  • Tailwind CSS
Service / 03

Smart Contract Development & Integration

Develop or integrate Solidity smart contracts with Web3 applications, enabling supported blockchain functionality and on-chain interactions.

What you get

  • Solidity smart contract implementation
  • Existing contract integration
  • Contract interaction workflows
  • Smart contract testing
  • Contract deployment assistance

Technology stack

  • Solidity
  • Ethereum
  • Hardhat
  • Ethers.js
Service / 04

Web3 Wallet Integration

Connect websites and decentralized applications with supported cryptocurrency wallets, enabling wallet-based authentication and blockchain interactions.

What you get

  • Supported wallet integration
  • Wallet connection workflows
  • Network detection and switching
  • Message signing integration
  • Transaction request handling

Technology stack

  • Ethers.js
  • Web3.js
  • React.js
  • Ethereum
Service / 05

Blockchain API & On-Chain Data Integration

Connect Web3 applications to blockchain networks, RPC providers, and supporting APIs to display transactions, contract events, balances, and application data.

What you get

  • Blockchain RPC integration
  • Transaction data retrieval
  • Token and wallet balance displays
  • Smart contract event handling
  • API and frontend integration

Technology stack

  • Ethers.js
  • Ethereum RPC
  • REST APIs
  • JavaScript
  • React.js
Service / 06

DApp Maintenance & Deployment

Improve, debug, test, and deploy existing Web3 applications with attention to maintainability, integration reliability, and clear technical documentation.

What you get

  • Existing DApp bug fixing
  • Frontend and wallet troubleshooting
  • Smart contract integration updates
  • Testing and debugging
  • Website deployment support

Technology stack

  • React.js
  • Ethers.js
  • GitHub
  • Docker
  • Vercel

Not sure where your Web3 project fits?

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