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I will fix metamask, walletconnect and web3 integration bugs
Senior Full Stack Developer for SaaS, AI, Healthcare and Web3
Need a reliable developer to build or improve your SaaS, AI, healthcare or Web3 product?
I work with React, Next.js, Node.js, NestJS, PHP, TypeScript, Ember.js, PostgreSQL, Supabase and AI/LLM APIs.
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About this Gig
Are Web3 bugs, wallet connection errors, or failed blockchain transactions blocking your DApp?
I will diagnose and fix React and Next.js Web3 DApp issues using clean, secure, and maintainable TypeScript code.
I can help with:
- MetaMask and WalletConnect connection errors
- Wagmi, Viem, Web3.js, and Ethers.js bugs
- Smart contract read and write failures
- Wrong network and chain switching issues
- Transaction rejection and gas-estimation errors
- Wallet authentication and signature problems
- Contract event and frontend state issues
- API and blockchain data integration
- React and Next.js Web3 frontend bugs
- Performance and responsive UI fixes
Why work with me?
- 6+ years of Full Stack development experience
- Professional Web3 and DeFi project experience
- Careful debugging and secure implementation
- Clear communication and reliable support
- Clean, production-ready solutions
Please contact me before ordering with your issue details so I can estimate the required working hours and recommend the correct package.
Important: I will never request your wallet seed phrase or private key.
Programming language:
JavaScript
•
TypeScript
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
Which Web3 technologies do you support?
I work with React, Next.js, TypeScript, Wagmi, Viem, Ethers.js, Web3.js, MetaMask, WalletConnect, Coinbase Wallet, and EVM compatible networks.
Can you fix wallet connection issues?
Yes. I can fix connection, reconnection, account switching, network switching, session, signature, and WalletConnect configuration issues.
Can you fix smart contract integration bugs?
Yes. I can diagnose frontend contract read/write calls, ABI issues, transaction errors, event handling, gas estimation, and network configuration.
Do you develop or audit smart contracts?
This gig primarily covers DApp frontend and smart contract integration support. Please discuss contract development or a formal security audit with me before ordering.
What information do you need to begin?
I need your source code, technology stack, network and contract details, error messages, relevant logs, and steps to reproduce the issue.
Will you need my seed phrase or private key?
No. Never share your seed phrase or private key with me or anyone else. Testing should use a separate development wallet with no valuable assets.
Should I contact you before ordering?
Yes. Web3 issues vary in complexity, so please message me first to confirm the required hours, package, and delivery time.
