We are looking for a Blockchain developer to develop token sale dapp and deploy smart contracts EVMFreelanceJobs • Canada
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We are looking for a Blockchain developer to develop token sale dapp and deploy smart contracts EVM
FreelanceJobs
- Canada
- Canada
À propos
Project Description
We are looking for:
A Solidity blockchain developer
A React developer
To build a presale dApp on Optimism (Layer 2).
Important:
The current website only has a landing page (React).
A new React frontend for the presale dApp must be built from scratch.
Scope of Work
Smart Contracts (Solidity)
Develop and deploy on Optimism
Allocation contract
Token issuance contract
No vesting / cliff contract at this stage
No complex sale mechanics for now
Secure, optimized, and tested contracts
Verified on Optimism explorer
Frontend (React – new build)
Build the presale dApp frontend in React
Wallet connection (MetaMask, WalletConnect)
USDT/USDC
Connect frontend to deployed smart contracts
Display:
Connected wallet
Allocation details
Transaction status
Purchase confirmation
Proper UX and error handling
Backend
Backend to manage:
KYC status
Wallet whitelisting
Allocation tracking
Transaction logging
Geo/IP blocking
API connection between frontend and blockchain
Secure database setup
Compliance Integrations
Integration with Sumsub for KYC
Integration with Chainalysis for AML screening
Only approved wallets can participate
Jurisdiction restrictions required
Admin Dashboard
View all participating wallets
View allocation amounts
Monitor blockchain transactions
Monitor KYC / AML status
Export data (CSV)
Manual approval option
Requirements
Strong Solidity experience
Experience deploying on Optimism
Strong React experience (Web3 integrations)
Experience with KYC integrations
Ability to deliver within 1 week
Contract duration of less than 1 month.
Mandatory skills: Blockchain, Blockchain Development, Blockchain Architecture, Ethereum, Smart Contract, Solidity, Cryptocurrency, React
Compétences linguistiques
- English
Avis aux utilisateurs
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