Some of the core programming knowledge is a primary competency for a blockchain developer to dig deeper into the technology. A developer doesn’t need to be an expert, but they should understand the syntax and know how to code. Ethereum and Bitcoin are constantly evolving blockchain platforms, so the developers must be up-to-date with the latest changes. The ideal developers should be familiar with common blockchain platforms.

Cryptography is the primary formula of blockchain technology; developers must have strong knowledge to create secure applications. In-depth knowledge and familiarity with standard encryption protocols like SSL and TLS help to build strong secured systems. Since blockchain is a distributed database, developers have to be aware of network concepts such as routing. Consequently, a good knowledge of cryptography, security protocols, and network concepts are the most important skills for blockchain developers.

Developers need to have a good understanding of data structure concepts like a linked list, hash table, etc. Since blockchain uses strong cryptographic concepts, it becomes a necessity to validate data structure knowledge as well. The main benefit of using data structures in blockchain technology is because of its effective search and sorting algorithm. However, using such structured algorithms, a blockchain platform is created. So, hire blockchain developers who have good knowledge in data structured sets.

Before finalizing the blockchain developer, validate their core skills in distributed ledgers, consensus mechanisms, smart contracts, dApps, Immutable, Permissioned vs Public blockchains, sharding, tokens, etc. Also, check their level of proficiency in the following blockchain tools caliper, blockchain explorer, Etherscan, Geth, Metamask, Mist, Remix IDE, Solidity, Solo, Testnets, Truffle, Drizzle, Ganache, etc.