DEX and CEX Developer with Solidity Salary in 2024

Where is Solidity used?

Creating Un-crackable Piggy Banks

• Imagine piggy banks that say "Nope!" to burglars. Solidity crafts smart contracts for DeFi, turning blockchains into Fort Knox for your digital coins!

NFTs: Digital Bragging Rights

• Folks use Solidity to whip up NFTs, letting you own digital art like it's the Mona Lisa hanging in your cyber-lounge. Show off pixels that others can only screenshot.

Decentralized Auction Houses

• Solidity slings code for decentralized eBay clones. Bid on vintage digital sneakers without some middleman swiping your snack money.

Vote Without Fear of Hangry Politicians

• It helps in creating tamper-proof voting systems where even the craftiest of ballot-munchers can’t fudge your precious vote.

Solidity Alternatives

Vyper

Vyper is a Python-like language for Ethereum smart contract development aiming for simplicity and security. Utilized for building transparent contracts without decorative elements.

# Sample Vyper contract for a simple storage:
@public
def store(value: uint256):
    self.stored_data = value

• Easier for Python developers to learn


• Focuses on security by limiting features


• Contracts are generally more readable


• Not as widely adopted as Solidity


• Limited resources and tooling


• Poor support for complex contract structures

Daml

Daml is a smart contract language designed for distributed ledgers, focusing on correctness and privacy. Ideal for creating multi-party workflows across different platforms.

-- Sample Daml contract for asset issuance:
template Asset
  with
    issuer: Party
    owner: Party
    assetId: Text
  where
    signatory issuer

• Strong privacy features and correctness guarantees


• Allows for cross-platform deployments


• Suitable for enterprise-level applications


• Smaller developer community


• Lesser focus on decentralized applications


• Platform-dependent design

Rust with Parity’s ink!

Rust with ink! framework is used for writing Wasm smart contracts for blockchains like Polkadot. Combines Rust's performance and safety with blockchain interoperability.

// Sample ink! contract with a simple increment function:
#[ink(storage)]
pub struct Incrementer {
    value: i32,
}

impl Incrementer {
    #[ink(constructor)]
    pub fn new(init_value: i32) -> Self {
        Self { value: init_value }
    }

    #[ink(message)]
    pub fn increment(&mut self) {
        self.value += 1;
    }
}

• Provides high performance and safety of Rust


• Interoperable with multiple blockchains


• Good for complex contract logic


• Higher learning curve for non-Rust developers


• Young ecosystem with evolving tooling


• Less mature than Solidity in the blockchain space

Quick Facts about Solidity

There's No "I" in Team, But There's Solidity in Ethereum

Picture it: Ethereum blockchain, 2014. A digital playground is missing its favourite toy. Enter Solidity, crafted by Dr. Gavin Wood. It's the coding sorcery you need to create your very own smart contracts—think tamagotchis that can hold your crypto! It's a brainchild so smart, it could solve a Rubik's Cube blindfolded.

Time Traveling Code—Solidity's Version Saga

Like fine wine and that cheese hiding in the back of your fridge, Solidity only gets funkier with age. From humble 0.1.1 (2015) to the glow-up 0.8.x in recent years, it's had more facelifts than Hollywood and more breakouts than a teenager's skin. Each version is like a new season of your favourite show, with more twists than a pretzel factory.

Code-Slinging and Bug-Dodging: Solidity's Cutting-Edge Antics

Ever seen a dev dodge bugs like they're in The Matrix? That's a Solidity pro for you. With its cutting-edge, statically-typed powers, it turns Ethereum's EVM into a stage and devs into rockstars—guitar-smashing optional. And for a bit of interactive playtime, here's a code snippet that's as delightful as finding cash in old jeans:

contract SweetSurprise {
    function surprise() public pure returns (string memory) {
        return "You've found some Ether!";
    }
}

What is the difference between Junior, Middle, Senior and Expert Solidity developer?

Top 10 Solidity Related Tech

1. 
   

   Ethereum

   
   

   Let's kick things off with Ethereum - the granddaddy of platforms for our beloved Solidity. It’s like the main stage at a rock concert, where Solidity gets to strut its stuff. Ethereum is the blockchain of choice for most Solidity developers, boasting smart contracts that can be as complex as a Rube Goldberg machine. It’s where your digital ledger dreams come to life!

   
   

   // Sample Solidity smart contract on Ethereum
   pragma solidity ^0.8.0;
   
   contract HelloWorld {
       function sayHi() public pure returns (string memory) {
           return "Hello, Ethereum universe!";
       }
   }
           

   
   


2. 
   

   Truffle Suite

   
   

   Next, we’ve got the Truffle Suite, the Swiss Army knife for Ethereum devs. It’s not made of chocolate, but it’s just as sweet for developers, giving you the tools to bake your dApps to perfection - from baking (compiling) to tasting (testing)! Emerge from the development rabbit hole with this box of goodies at your fingertips.

   
   

   // Initialize a Truffle project
   truffle init
   
   // Compile your smart contracts
   truffle compile
   
   // Deploy to the blockchain
   truffle migrate
   
   // Interact with your deployed smart contracts
   truffle console
           

   
   


3. 
   

   Hardhat

   
   

   Put on your construction hat because we’re diving into Hardhat territory, where Ethereum developers toil and trouble their smart contracts. Hardhat is like a virtual sandbox on steroids, complete with tools that let you debug with the finesse of a surgeon and deploy with the precision of a sniper.

   
   

   // Sample Hardhat task
   task("accounts", "Prints the list of accounts", async () => {
     const accounts = await hre.ethers.getSigners();
   
     for (const account of accounts) {
       console.log(account.address);
     }
   });
   
   module.exports = {
     solidity: "0.8.4",
   };
           

   
   


4. 
   

   OpenZeppelin

   
   

   OpenZeppelin is the superhero toolkit for Solidity security. Imagine a medieval armory, but instead of swords and shields, you’ve got vetted smart contract templates. It’s like having a horde of battle-tested knights ready to protect your castle from the fiery dragons of bugs and exploits!

   
   

   // Using an OpenZeppelin ERC-20 token contract
   pragma solidity ^0.8.0;
   
   import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
   
   contract MyToken is ERC20 {
       constructor(uint256 initialSupply) ERC20("MyToken", "MTK") {
           _mint(msg.sender, initialSupply);
       }
   }
           

   
   


5. 
   

   MetaMask

   
   

   Ah, MetaMask, the digital wallet that’s the virtual pocket for all your blockchain goodies. It’s like a magical pouch where you store your digital gold, and with a fox as its mascot, it’s the clever companion every Ethereum explorer needs to interact with the blockchain jungle.

   
   


6. 
   

   Remix IDE

   
   

   Remix IDE is the jamming studio for Solidity musicians, where smart contract symphonies are composed. With its sleek interface and browser-based convenience, it’s like having a Google Docs for your Solidity scripts - collaboration and compilation in one shiny package!

   
   

   // Writing Solidity in Remix is as simple as:
   pragma solidity ^0.8.0;
   
   contract SimpleStorage {
       uint storedData;
   
       function set(uint x) public {
           storedData = x;
       }
   
       function get() public view returns (uint) {
           return storedData;
       }
   }
           

   
   


7. 
   

   IPFS

   
   

   Whisper it softly, IPFS, or the InterPlanetary File System, is the galactic express for storing and sharing files across the blockchain cosmos. Like an alien technology, it’s decentralized and peer-to-peer, meaning your files are scattered like stardust, resistant to going supernova from a single point of failure.

   
   


8. 
   

   Infura

   
   

   Navigating the Ethereum network without Infura is like sailing the seven seas without a compass. This suite of APIs is your trusty first mate, ensuring you can whisper sweet nothings to the Ethereum blockchain without managing your own node - shiver me smart contracts!

   
   


9. 
   

   Ganache

   
   

   Ganache is your personal Ethereum blockchain to tinker and toy with. It’s like playing Minecraft, but for crypto geeks - you get to build and destroy as you please with none of the real-world mess. And, with your very own blockchain playground, testing is a piece of cake - a blockchain cake, that is.

   
   

   // Launching Ganache for a personal blockchain
   ganache-cli
           

   
   


10. 
    

    Web3.js/ethers.js

    
    

    Last but not least, we have the dynamic duo: Web3.js and ethers.js, the twin bridges connecting the chasm between your dApps and the Ethereum blockchain. They’re like the digital Rosetta Stones, deciphering blockchain babble into something your apps can understand - turning smart contracts into smart companions for your user interfaces.

    
    

    // Sample Web3.js code to interact with a smart contract
    web3.eth.Contract(abi, contractAddress);
    
    // Sample ethers.js code snippet for contract interaction
    const provider = new ethers.providers.Web3Provider(window.ethereum);
    const signer = provider.getSigner();
    const contract = new ethers.Contract(contractAddress, abi, signer);