Cryptography is an integral part of blockchain technology and a smart contract developer must be able to work with public and private key pairs use digital signatures to verify identity and ensure that signing messages is easy. A blockchain developer must understand the role of hashing for cryptography how it helps to connect different blocks securely and how to use it in practice.
Security Writing secure code is hard enough but it's the only way to avoid a hostile takeover of a smart contract so ensuring security is a significant skill for a programmer. A developer must learn how to secure smart contracts all the time because attackers mobile app designs service find new ways to exploit flaws in contracts and use them for fraudulent purposes.
To avoid different types of attacks you need to secure smart contracts and know how to deal with common attacks. Where to Find Smart Contract Developers For companies that are new to the world of blockchain recruiting it might seem that all you need to do is learn the basic concepts of blockchain and a smart contract developer is already on your team.