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USD
I will build or fix your web3 dapp, wallet connect, and smart contract integration
German Mobile App Development, Website Expert
Hello, I’m Jean — a German mobile app developer with 7+ years of experience in mobile app development, website development, Flutter apps, Supabase backnds, and SaaS platforms. I help startups and agen...
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About this Gig
Do you need a new Web3 dapp built, or is your existing dapp broken and not working properly?
I can help you build or fix Web3 dapps, wallet connect flows, smart contract integrations, token dashboards, staking features, presale pages, minting pages, and blockchain-connected frontends.
This gig is ideal if you need German quality standards and help with:
- Web3 dapp development
- WalletConnect, MetaMask, or wallet login issues
- Smart contract frontend integration
- Token, NFT, staking, minting, or presale features
- Broken transactions or failed contract calls
- Frontend bugs in React, Next.js, or similar stacks
- Existing Web3 project rescue after another developer failed
- Deployment, testing, and technical handover
I focus on clean implementation, clear communication, and stable results. Before starting, I will review your current setup, understand the issue or feature, and tell you what can realistically be done.
Please message me before ordering so I can check your requirements and recommend the right package.
Keep your assets and information safe
Cryptocurrency services focus solely on developing and programming. Never share sensitive information or private keys with others.
My Portfolio
FAQ
Can you build a new Web3 dapp from scratch?
Yes. I can build new Web3 dapps, wallet-connected frontends, token dashboards, staking pages, minting pages, presale pages, and smart contract integrations.
Can you fix an existing broken Web3 dapp?
Yes. I can review your existing project and fix wallet connection issues, frontend bugs, failed transactions, smart contract integration problems, and deployment issues.
Which wallets can you work with?
I can work with common wallet integrations such as MetaMask, WalletConnect, Coinbase Wallet, Phantom, and similar Web3 wallet providers depending on your chain and stack.
Which blockchains do you support?
I can work with EVM chains such as Ethereum, Polygon, BNB Chain, Base, and Arbitrum. Depending on the project, I can also help with Solana-related frontend or integration work.
Do you write smart contracts too?
Yes, depending on the scope. I can create, adjust, or integrate smart contracts. For complex contracts, audits, DeFi logic, or high-value systems, the scope must be reviewed first.
Can you fix smart contract errors?
Yes. I can help debug smart contract integration errors, failed contract calls, ABI issues, network mismatches, gas problems, and frontend-to-contract connection issues.
