Contact person: Business Client

Phone:Show

Email:Show

Location: New York, United States

Budget: Recommended by industry experts

Time to start: As soon as possible

Project description:
"Most of the presale UI is already implemented.
What remains is the critical integration layer between the existing frontend and the deployed presale smart contracts.

The goal is to complete and verify the end-to-end presale flow so users can safely and smoothly participate using ETH and USDT.

This is primarily an execution and integration task, not a contract redesign.

Current Status

• Frontend is built with React + TypeScript and already renders the presale flow.
• Presale smart contracts are already written and deployed on testnet.
• Wallet connection via [login to view URL] is live.
• Placeholder methods exist where real contract calls need to be wired in.

Your Mission

You will be responsible for completing and validating the smart-contract interaction layer, including:

– Implementing ETH presale interactions (buy, claim) via [login to view URL]
– Implementing USDT presale flow (approve + buy)
– Handling transaction states in the UI (pending / success / revert)
– Wiring on-chain data into the dashboard (user allocation, claimable amount, status)
– Adding a staking toggle option during purchase (frontend + contract call)
– Ensuring all flows work correctly on testnet

You are not expected to redesign or rewrite core Solidity logic, only to work with the existing deployed contracts and ABIs.

Deployment & Tooling

– Use existing Hardhat setup
– Provide or update a simple deployment / config script if needed
– Ensure the project is deployment-ready for mainnet after testing

Acceptance Criteria

A user with MetaMask can complete the full presale flow:
ETH / USDT buy → see live status → claim tokens successfully

All transaction states are clearly reflected in the UI

The entire flow runs end-to-end on testnet without manual intervention

Code is clean, documented, and merged into the existing codebase

Screenshots or partial demos are not considered delivery.
The client must be able to independently verify the full flow.

Who This Is For

This project is a good fit if you:

• Have real experience integrating dApps with live presale contracts
• Are comfortable with [login to view URL] / wagmi style contract interaction
• Prefer clear requirements and execution over open-ended design work
• Can deliver working results without repeated deadline extensions

If you rely on promise-based progress instead of verifiable delivery, this project is not a good fit." (client-provided description)