Blockchain Dev.

What is Blockchain?

Blockchain Software Developers

A blockchain developer develops decentralized applications (dApps) and smart contracts based on an existing blockchain network such as bitcoin, ethereum, etc. as well as understanding the architecture and protocols of the technology. They are responsible for developing 3D models, 3D designs, and 3D content such as that used in games

Blockchain Core Developers

A Core Blockchain Developer designs the security and the architecture of the proposed Blockchain system. In essence, the Core Blockchain Developer creates the foundation upon which others will then build upon.

Languages To Learn!

Solidity

Solidity is an object-oriented, high-level language for implementing smart contracts. Smart contracts are programs which govern the behaviour of accounts within the Ethereum state. Solidity is a curly-bracket language designed to target the Ethereum Virtual Machine (EVM). It is influenced by C++, Python and JavaScript. You can find more details about which languages Solidity has been inspired by in the language influences section. Solidity is statically typed, supports inheritance, libraries and complex user-defined types among other features. With Solidity you can create contracts for uses such as voting, crowdfunding, blind auctions, and multi-signature wallets.

JavaScript (often shortened to JS) is a lightweight, interpreted, object-oriented language with first-class functions, and is best known as the scripting language for Web pages, but it's used in many non-browser environments as well. It is a prototype-based, multi-paradigm scripting language that is dynamic, and supports object-oriented, imperative, and functional programming styles. JavaScript runs on the client side of the web, which can be used to design / program how the web pages behave on the occurrence of an event. JavaScript is an easy to learn and also powerful scripting language, widely used for controlling web page behavior.

Python is a high-level, interpreted, general-purpose programming language. Its design philosophy emphasizes code readability with the use of significant indentation.[31] Python is dynamically-typed and garbage-collected. It supports multiple programming paradigms, including structured (particularly procedural), object-oriented and functional programming. It is often described as a "batteries included" language due to its comprehensive standard library

Tools You Need!

Smart Contracts.

How Does Smart Contract Work?

IDE.

Click to open remix IDE

Full Stack Applications.

Truffle is a development environment, testing framework and asset pipeline for blockchains using the Ethereum Virtual Machine (EVM), which makes it easy for a blockchain developer.
With Truffle, you get:

Built-in smart contract compilation, linking, deployment and binary management.
Automated contract testing for rapid development.
Scriptable, extensible deployment & migrations framework.
Network management for deploying to any number of public & private networks.
Package management with EthPM & NPM, using the ERC190 standard.
Interactive console for direct contract communication.
Configurable build pipeline with support for tight integration.
External script runner that executes scripts within a Truffle environment.

For more info Click here

Ganache is a personal blockchain for rapid Ethereum and Corda distributed application development. You can use Ganache across the entire development cycle; enabling you to develop, deploy, and test your dApps in a safe and deterministic environment.
Ganache comes in two flavors: a UI and CLI. Ganache UI is a desktop application supporting both Ethereum and Corda technology. The command-line tool, ganache-cli (formerly known as the TestRPC), is available for Ethereum development.

METAMASK

Metamask is an ethereum wallet in your browser which is an extension for accessing ethereum enabled distributed applications, or "Dapps" in your browser!
The extension injects the Ethereum web3 API into every website's javascript context, so that dapps can read from the blockchain.
MetaMask also lets the user create and manage their own identities, so when a Dapp wants to perform a transaction and write to the blockchain, the user gets a secure interface to review the transaction, before approving or rejecting it.

Framework & Libraries

Node.Js

Node.js is an open source server environment
Node.js is free
Node.js runs on various platforms
Node.js uses JavaScript on the server
Node.js can generate dynamic page content
Node.js can create, open, read, write, delete, and close files on the server
Node.js can collect form data
Node.js can add, delete, modify data in your database

React.Js

React, sometimes referred to as a frontend JavaScript framework, is a JavaScript library created by Facebook.
React is a tool for building UI components
Instead of manipulating the browser's DOM directly, React creates a virtual DOM in memory, where it does all the necessary manipulating, before making the changes in the browser DOM.
React finds out what changes have been made, and changes only what needs to be changed.

Web3.Js

There are a few different aspects to developing blockchain applications with Ethereum:
1. Smart contract development - writing code that gets deployed to the blockchain with the Solidity programming language.
2. Developing websites or clients that interact with the blockchain - writing code that reads and writes data from the blockchain with smart contracts.
Web3.js enables you to fulfill the second responsibility: developing clients that interact with The Etherem Blockchain. It is a collection of libraries that allow you to perform actions like send Ether from one account to another, read and write data from smart contracts, create smart contracts, and so much more! Instead of using a jQuery to read and write data from a web server, you can use Web3.js to read and write to The Ethereum Blockchain.

NEXT STEP !

Learning Web Dev.

Learing Web development is an essiential skill to learn not only for blockchain development but for recruitment in various companies as most of the recruiters look for this skill in today's world. Web development is an easy to learn,fun and very useful skill one must develop for the technical world.

The 3 basic skills required to become a web-developer are :

HTML
CSS
Java Script

Cryptography.

Cryptography is technique of securing information and communications through use of codes so that only those person for whom the information is intended can understand it and process it. Thus preventing unauthorized access to information. The prefix “crypt” means “hidden” and suffix graphy means “writing”. In Cryptography the techniques which are use to protect information are obtained from mathematical concepts and a set of rule based calculations known as algorithms to convert messages in ways that make it hard to decode it. These algorithms are used for cryptographic key generation, digital signing, verification to protect data privacy, web browsing on internet and to protect confidential transactions such as credit card and debit card transactions.

Conclusion .

After Learning the above mentioned Languages, Tools & Frameworks you are eligibe to create various projects and apply for a job.You can also learn about various other blockchain networks like bitcoin, ethereum, matic, etc. and how they function.

To learn more about how blockchain works click here

For Tuotrials, follow the links provided in the tutorial dropdown present on the navbar.

All THE BEST on your journey to become a blockchain developer.