pumpdat.

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

client

Crypto startup

role

Full-stack + smart contracts

window

~10 weeks

status

Shipped to mainnet

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.

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

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

pumpdat client testimonial

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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