
Comprehensive Blockchain NFT Marketplace
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About this service
Summary
What's included
Comprehensive Blockchain NFT Marketplace
A deep-dive consultation to understand your project vision, the chain(s) you wish to target, and any special requirements like fractional NFTs, staking, or integration with external DeFi or game protocols.
Smart Contract Development (ERC721/1155, Cosmos SDK, Solana, TON, etc.)
Development of custom NFT smart contracts tailored to your marketplace, supporting features like minting, transferring, listing, and auctioning NFTs. I provide contracts adhering to ERC721/ERC1155 standards for EVM chains and chain-specific standards like SPL (Solana) or TRC721 (TRON)
Integration with Multi-Chain Wallets
Full integration of popular Web3 wallets like MetaMask, Phantom (Solana), TronLink, and others to support smooth user experience for NFT transactions on different chains.
Marketplace Core Features Implementation
Building key features like listing NFTs for sale, buy/sell functionality, auctions (both English and Dutch types), offers, bidding systems, and instant purchases.
NFT Fractionalization & Multi-Owner Support
Adding the capability for fractional NFTs, enabling users to co-own high-value NFTs with multiple shareholders, splitting profits and managing ownership through smart contracts
Royalty Systems & Revenue Sharing
Creation of automated royalty distribution systems, ensuring that creators earn a percentage from secondary sales. I also build customizable revenue-sharing mechanisms.
Cross-Chain NFT Bridging & Interoperability
Development of bridges for moving NFTs between different blockchain ecosystems (e.g., Ethereum to Solana, Polkadot to TRON), ensuring interoperability between chains.
Backend Infrastructure & APIs
Backend development to support marketplace logic, user data management, and seamless integration with blockchain nodes, indexing services, and IPFS/Arweave for decentralized storage.
Frontend Development (React, Tailwind, Next.js)
Design and implementation of a responsive, user-friendly marketplace interface, supporting all core functionalities, wallet connections, and cross-chain operations.
Token Integration (Utility/Reward Tokens)
Integration of utility or governance tokens into the marketplace, enabling staking, reward mechanisms, or platform fees in the form of native tokens.
Security Audits & Optimization
Security audit of smart contracts and marketplace infrastructure to identify and fix vulnerabilities. Optimization of gas costs and transaction efficiency.
Marketplace Deployment & Testing
Full deployment of the NFT marketplace on your chosen chain(s), followed by rigorous testing to ensure everything works as expected in both the testnet and mainnet environments.
Post-Launch Support & Maintenance
Ongoing support for bug fixes, upgrades, feature extensions, and marketplace scaling. I also offer advice on future enhancements and new blockchain trends.
Recommendations
(5.0)

Recommended
Paul has been an exceptional blockchain and backend developer at Valmira. His technical depth, reliability, and commitment consistently exceeded every expectation. Even when challenges appeared or plans shifted, he showed ownership, resilience, and a drive to deliver quality. I fully recommend him to anyone seeking a world-class developer who truly cares about the success of the project.


Recommended
Paul Kopold has been an outstanding partner on multiple long-term blockchain and DeFi projects. He developed a production-ready crypto wallet for both iOS and Android using React Native, integrating fiat on-ramp, swaps, and secure blockchain interactions with exceptional attention to detail. Beyond this app, Paul has successfully delivered complex systems for DeFi protocols, NFT marketplaces, governance platforms, and ICO infrastructures. His technical depth, reliability, and ability to turn com
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