--- title: "Jay Makwana (@jaymakwanacodes) | Hashnode" description: "Full Stack Web3 Engineer. Read the latest articles by Jay Makwana on Hashnode." url: "https://hashnode.com/@jaymakwanacodes" --- @jaymakwanacodes # Jay Makwana @jaymakwanacodes · Joined August 2021 Full Stack Web3 Engineer ### [The Complete Guide to Advanced Foundry Testing in 2025](https://jmakwana01.hashnode.dev/the-complete-guide-to-advanced-foundry-testing-in-2025?utm_source=hashnode&utm_medium=feed) Master professional-grade smart contract testing with modern Foundry patterns 🎯 Introduction Testing smart contracts isn't just about preventing bugs—it's about building confidence in systems that handle real value. In this comprehensive guide, we'... 27 min read · [jmakwana01.hashnode.dev](https://jmakwana01.hashnode.dev/the-complete-guide-to-advanced-foundry-testing-in-2025?utm_source=hashnode&utm_medium=feed) [Feb 11](https://hashnode.com/posts/the-complete-guide-to-advanced-foundry-testing-in-2025/698c8d500378dca8f88c68e8) ### [From Zero to Production-Grade: My Journey Testing NFT Smart Contracts with Foundry](https://jmakwana01.hashnode.dev/from-zero-to-production-grade-my-journey-testing-nft-smart-contracts-with-foundry?utm_source=hashnode&utm_medium=feed) When I started learning smart contract development, writing tests felt like an afterthought. "I'll just deploy it and see if it works" was my approach. Fast forward to today, and I've completely transformed how I think about testing in Web3 developme... 8 min read · [jmakwana01.hashnode.dev](https://jmakwana01.hashnode.dev/from-zero-to-production-grade-my-journey-testing-nft-smart-contracts-with-foundry?utm_source=hashnode&utm_medium=feed) [Sep 6, 2025](https://hashnode.com/posts/from-zero-to-production-grade-my-journey-testing-nft-smart-contracts-with-foundry/68bc0dcae92802fdacfc142a) ### [Incremental Merkle Trees in Zero-Knowledge Privacy Systems: From Library Cards to Cryptographic Proofs](https://jmakwana01.hashnode.dev/incremental-merkle-trees-in-zero-knowledge-privacy-systems-from-library-cards-to-cryptographic-proofs?utm_source=hashnode&utm_medium=feed) Jay Makwana Introduction: The Privacy Paradox Imagine trying to prove you belong to an exclusive club without revealing which member you are. This seemingly impossible task lies at the heart of modern privacy-preserving cryptocurrencies like Tornado ... 9 min read · [jmakwana01.hashnode.dev](https://jmakwana01.hashnode.dev/incremental-merkle-trees-in-zero-knowledge-privacy-systems-from-library-cards-to-cryptographic-proofs?utm_source=hashnode&utm_medium=feed) [Aug 4, 2025](https://hashnode.com/posts/incremental-merkle-trees-in-zero-knowledge-privacy-systems-from-library-cards-to-cryptographic-proofs/689129e8b6f56f7a54b151cf) ### [Zero-Knowledge Proofs and Tornado Cash: A Technical Deep Dive -created for educational purpose](https://jmakwana01.hashnode.dev/zero-knowledge-proofs-and-tornado-cash-a-technical-deep-dive-created-for-educational-purpose?utm_source=hashnode&utm_medium=feed) Imagine you’re at a party and someone claims they know the password to the WiFi. Instead of just telling everyone the password (which would defeat the purpose), they prove they know it by successfully connecting their phone. They’ve proven their know... 8 min read · [jmakwana01.hashnode.dev](https://jmakwana01.hashnode.dev/zero-knowledge-proofs-and-tornado-cash-a-technical-deep-dive-created-for-educational-purpose?utm_source=hashnode&utm_medium=feed) [Aug 3, 2025](https://hashnode.com/posts/zero-knowledge-proofs-and-tornado-cash-a-technical-deep-dive-created-for-educational-purpose/688f0585768682a86f931d69) ### [The Proxy Pattern in Solidity: From Zero to Hero — by Jay Makwana](https://jmakwana01.hashnode.dev/the-proxy-pattern-in-solidity-from-zero-to-hero-by-jay-makwana?utm_source=hashnode&utm_medium=feed) Picture this: You’ve just deployed your amazing DeFi protocol to Ethereum mainnet. Users are depositing millions of dollars. Then you discover a critical bug. On traditional platforms, you’d push a quick update. On Ethereum? You’re basically stuck be... 12 min read · [jmakwana01.hashnode.dev](https://jmakwana01.hashnode.dev/the-proxy-pattern-in-solidity-from-zero-to-hero-by-jay-makwana?utm_source=hashnode&utm_medium=feed) [Aug 2, 2025](https://hashnode.com/posts/the-proxy-pattern-in-solidity-from-zero-to-hero-by-jay-makwana/688ea21769e7710024020ca1)