Blockchain is a distributed ledger technology that first evolved in 2009 as the underlying technology for Bitcoin exchange. But with time, we have seen a rise in the use cases of Blockchain technology. Companies like HSBC, Barclays, Walmart, IBM, Amazon, Facebook, and others actively use this technology. There are many startups that have ventured into the Blockchain segment. All these are actively hiring Blockchain developers who can leverage Blockchain technology.