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$
USD
I will develop full stack web3 dapp with next js node js and evm smart contract
Full Stack Developer , Blockchain Developer , Reactjs , Nextjs , Web3 , Solidity
I am Certified Software Engineer and I am working as Full Stack and Blockchain Developer Over 6+ years, Contains Expertise In Modern Tools and Proffesional Techniques Required For Blockchain Developme...
Level 1
Has met certain performance criteria and shows strong potential in the marketplace.
About this Gig
Most DApp developers on Fiverr deliver a smart contract and a basic React UI. That's half a product. I build the COMPLETE stack , Solidity smart contract, Next.js frontend, Node.js backend, and PostgreSQL/Supabase database, so your web3 DApp is production-ready from day one.
I'm a full-stack blockchain developer specializing in decentralized applications (DApps) on EVM-compatible chains including Ethereum, Binance Smart Chain (BSC), Polygon, Arbitrum, Avalanche, and Base. I combine battle-tested Web3 tools (Solidity, Hardhat, ethers.js, wagmi) with modern web technologies (Next.js, Node.js, Supabase/PostgreSQL) to deliver DApps that are fast, secure, and actually scalable.
APP TYPES I BUILD:
Token presale / ICO platform with live dashboard
Staking & yield farming DApp
DEX / token swap interface
DAO governance & voting platform
DeFi portfolio tracker / dashboard
Token launchpad (IDO/ILO)
WHY I'M DIFFERENT FROM OTHER SELLERS:
TRUE full-stack
Real database layer (PostgreSQL/Supabase)
Multi-chain EVM
Mobile wallet support
Proper Testing
Let's discuss your requirements, preferred database (Supabase vs PostgreSQL), chain choice, and timeline so I can give you an accurate scope.
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
What makes your DApp gig different from others on Fiverr that cost $80–$150?
Most DApp gigs at that price range deliver a Solidity smart contract and a basic React frontend that's it. There is no backend, no database, and no user authentication layer. My gig builds all three layers: the smart contract (on-chain logic), a Node.js API (off-chain processing), and Backend.
Which EVM blockchains do you support?
I develop on all major EVM-compatible chains: Ethereum mainnet, Binance Smart Chain (BSC), Polygon, Arbitrum One, Arbitrum Nova, Optimism, Base, Avalanche C-Chain, and Fantom. Since all of these chains are EVM-compatible, the same Solidity smart contract code deploys across all of them.
Why Next.js instead of plain React? What's the advantage for a DApp?
Next.js (built on React) adds server-side rendering, static generation, and a built-in API layer that plain React doesn't have. For DApps this matters for three reasons: first, your pages load faster and are SEO-indexable (important for landing pages and token info pages).
Why does a DApp need a backend? Isn't the whole point of blockchain that there's no server?
Blockchains store on-chain data (token balances, ownership, contract state), but real DApps always need off-chain data too: user display names, email notifications, search/filter indexes, analytics, application settings, for fast display, and so on. Querying the blockchain is slow and expensive.
Should I choose Supabase or PostgreSQL for my DApp's database?
Both use PostgreSQL under the hood , the difference is in what comes bundled. Supabase gives you a hosted PostgreSQL database, built-in authentication, real-time subscriptions and a storage bucket for files, all managed for you. This is ideal if you want to move fast with less control.
How does wallet-based authentication work , do users need a username and password?
No username or password needed. I implement wallet signature authentication , the user clicks "Connect Wallet," signs a challenge message with their wallet (MetaMask, WalletConnect, etc.) proving they own that wallet address, and my backend verifies the signature and issues a JWT session token.
How long does it take to build a full-stack DApp?
Delivery times in my packages (5, 10, and 21 days) reflect typical scope for each tier but still it depends, if you have super large project then, could only find that with estimation of timeline.
Do you write unit tests for the smart contracts?
Yes , all smart contracts I write include a Hardhat test suite covering the core functions: deployment, standard transfers, edge cases (zero-value transfers, overflow attempts), access control checks, and any custom functions in your contract. Test coverage is included in all packages.
What information do I need to provide to start the project?
Message me before ordering and I'll send you a short project brief template.
Do I get the full source code? Can I continue developing it after delivery?
Yes , all packages include the complete source code with 100% ownership transferred to you. I deliver it as a well-structured GitHub repository (or ZIP file, your choice) with a README covering the project architecture, environment variable setup, local development instructions, and deployment steps
