Non-Custodial Crypto DApp Development
Budget: €750 – €1,500 EUR
Developer Needed for Non-Custodial Crypto Swap DApp (Web + Mobile)
Description:
Looking for an experienced blockchain developer to build a simple non-custodial crypto swap app — similar to Uniswap or PancakeSwap, but with only the swap function.
Users should be able to connect their own wallets (MetaMask, WalletConnect) and directly swap tokens.
No custody — swaps will use existing DEX aggregators like 0x or 1inch.
Requirements:
Strong experience with Web3 development (ethers.js, web3.js, WalletConnect)
Familiarity with DEX integrations (Uniswap, 1inch, 0x)
Frontend: React / Next.js (React Native for mobile is a plus)
Understanding of Ethereum / BNB Chain / Polygon
API integration & transaction handling experience
Focus on security and non-custodial architecture
Project Goal:
Deliver an MVP where users can:
Connect their wallet
Swap Token A → Token B
View transaction status (pending/success)
Deliverables:
Working prototype
Clear documentation
GitHub repository with code handover
Preferred:
Freelancers with previous DeFi / Web3 project experience.
Description:
Looking for an experienced blockchain developer to build a simple non-custodial crypto swap app — similar to Uniswap or PancakeSwap, but with only the swap function.
Users should be able to connect their own wallets (MetaMask, WalletConnect) and directly swap tokens.
No custody — swaps will use existing DEX aggregators like 0x or 1inch.
Requirements:
Strong experience with Web3 development (ethers.js, web3.js, WalletConnect)
Familiarity with DEX integrations (Uniswap, 1inch, 0x)
Frontend: React / Next.js (React Native for mobile is a plus)
Understanding of Ethereum / BNB Chain / Polygon
API integration & transaction handling experience
Focus on security and non-custodial architecture
Project Goal:
Deliver an MVP where users can:
Connect their wallet
Swap Token A → Token B
View transaction status (pending/success)
Deliverables:
Working prototype
Clear documentation
GitHub repository with code handover
Preferred:
Freelancers with previous DeFi / Web3 project experience.