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pumpdat.

A token launchpad on Ethereum mainnet: contracts, backend, and frontend, delivered end to end.

Crypto startupFull-stack + smart contractsAbout 10 weeksShipped to mainnet

Interface preview preview
pumpdat · Token Launchpad · Ethereum Mainnet live
token price mkt cap holders status
EXMP · ExampleToken 0.000042 ETH $4.2K 284 trading
Live trades via websocket
type wallet amount time
BUY 0xAb3f...c82e 0.12 ETH 2s ago
SELL 0x7e2c...f91a 0.08 ETH 14s ago
BUY 0xF91a...d4c3 0.31 ETH 41s ago
contract 0x7f4e...3a2b · IPFS metadata verified · representative data
The problem 01

Mainnet, full stack.

A crypto startup wanted to launch a Pump.fun-style token launchpad on Ethereum mainnet but needed the entire system built: smart contracts, backend infrastructure, and a user-facing frontend. One team, three disciplines, one ship date.

What I built 02

Contracts → API → app.

The full stack. Upgradeable Solidity proxy contracts handle token creation and trading on-chain. An Express + Socket.IO backend serves real-time trade data over websockets.

A Next.js frontend connects wallets via WalletConnect, handles Twitter OAuth, and lets users launch and trade tokens. Token metadata is stored on IPFS via Pinata.

The outcome 03

Shipped to mainnet.

Deployed to Ethereum mainnet and handed over to the client. Live and trading.

The stack 04
Solidity Hardhat Express Socket.IO Next.js 15 MongoDB Pinata Alchemy Vercel Railway
Rayyan delivered flawless, high-quality work, faster and better than I imagined possible. Communication was smooth throughout, and he came up with smart solutions to problems before I even had to ask. Reliable, insanely skilled, easy to work with. I'd hire him again without hesitation.
Founder, pumpdat, shipped 2025

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