Blockchain Developer – On-Chain Contribution Certificates, NFT/SBT

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May 11

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Roxonn

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B2B • SaaS

Roxonn is a technology company that delivers innovative software solutions and development services to help businesses transform and scale. The company offers products, custom development, and training courses, and presents resources like whitepapers and insights; its website references app launches and decentralized exchange (DEX) trading, suggesting involvement in modern web and app technologies. Roxonn appears focused on B2B software delivery and SaaS-style offerings for enterprises and developers.

1 - 10 employees

Founded 2024

🤝 B2B

☁️ SaaS

📋 Description

• Develop the MVP for an on-chain certificate system for Roxonn contributors: • Design and implement a smart contract (e.g., ERC1155, custom SBT, or non-transferable ERC721) on the XDC Network for minting and managing these certificates. • Define and structure the metadata for certificates (e.g., contributor ID, achievement details, project link, date, skills demonstrated). • Consider storage solutions like IPFS/Arweave for off-chain metadata parts. • Develop backend logic (Node.js/TypeScript) to trigger the minting of certificates based on defined criteria (for MVP, this might be a manual admin trigger for verified achievements). • Implement frontend components (React/TypeScript) to display earned certificates on a contributor's Roxonn profile. • Ensure the system is secure and gas-efficient.

🎯 Requirements

• Strong experience in Smart Contract development with Solidity (preferably for XDC/EVM-compatible chains). • Experience with NFT/SBT standards (ERC721, ERC1155, or emerging SBT patterns). • Backend development experience (Node.js/TypeScript) for Web3 integrations. • Frontend development experience (React/TypeScript) with Web3 libraries (e.g., ethers.js, web3.js). • Understanding of metadata standards and storage solutions (e.g., IPFS, Arweave). • Familiarity with blockchain security best practices. • Knowledge of the XDC Network ecosystem is a plus.