Arif Arid

Full stack engineer

DNFT Inc. • Freelance

Aug 2024 - Present • 1 yr 9 mos

• Developed backend services using AdonisJS (Node.js) for NFT platform operations, user management, and mint tracking. • Designed and optimized PostgreSQL schemas for NFT metadata, transaction logs, and AI-generated trait storage. • Built frontend interfaces using Next.js with TypeScript for mint dashboards, rarity previews, and admin automation panels. • Integrated existing ERC-721 and ERC-1155 smart contracts into backend systems using ethers.js and web3.js. • Implemented blockchain event listeners to sync on-chain activity with off-chain PostgreSQL databases. • Developed AI pipelines in Python for trait generation, metadata enrichment, and automated rarity scoring. • Automated NFT drop workflows, IPFS uploads, and transaction monitoring using Node.js scripts and cron jobs. • Improved backend query performance by optimizing indexes and reducing heavy joins, cutting response time by 35%. • Built REST APIs using AdonisJS and Node.js for NFT marketplaces and AI-driven analytics tools. • Implemented authentication and wallet-based login flows. • Worked with smart contract teams to test integrations in Hardhat environments. • Developed automation systems for NFT mint event handling and data reconciliation. • Used PostgreSQL triggers and background jobs for transactional consistency.