Solidity is a programming language that is primarily used to create decentralized applications (dApps) and crypto tokens. It is used within the blockchain space to code, verify, and secure transactions on Ethereum-based networks. By hiring a Solidity Expert, they can write, debug and deploy various smart contracts on Ethereum as well as ensure compliance of their smart contracts with standards like ERC20 & ERC721 tokens.

Having a qualified Solidity Expert can bring you the peace of mind knowing that you are dealing with a subject matter specialist. Freelancer.com has many skilled Solidity Experts who can help you build sophisticated software solutions with the highest of quality with their proficiency in writing efficient smart contracts in Solidity.

Here's some projects that our expert Solidity Experts made real:

  • Updating existing Smart Contracts
  • Developing financial bots and trading networks
  • Creating dApps on alternative blockchain networks
  • Designing new money transferring systems
  • Auditing pre-existing token protocols
  • Creating novel blockchain ecosystems
  • Developing NFT marketplaces

When it comes to blockchain coding and programming complex code, there is no better way to do it securely than using Solidity. With its ever increasing importance in many facets of decentralized technology, having an experienced Solidity Expert on your team could be the competitive edge you need. So why wait? Post your project now on Freelancer.com and hire a Solidity Expert and create an unthinkable product or system!

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    NFT Staking Project on Tron 6 zile left
    VERIFICAT

    I am looking to gather quotes for a new NFT Project, and need someone who can help me create an NFT staking project on Tron. Basic 1 Tier NFT Design. Profit Share for NFT holders Ability to resell to Contract. Website and Dapp to view amount of total capital and profit generation etc. Ideal Skills and Experience: - Experience in creating NFT staking projects on Tron - Strong knowledge of Tron blockchain technology - Ability to create fully functional prototypes and conceptual designs - Proficient in technical documentation and providing continuous support and updates - Strong communication skills for effective troubleshooting and problem-solving.

    $267 (Avg Bid)
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    28 oferte

    I am looking to gather quotes for a new NFT Project, and need someone who can help me create an NFT staking project on Tron. Basic 1 Tier NFT Design. Profit Share for NFT holders Ability to resell to Contract. Website and Dapp to view amount of total capital and profit generation etc. Ideal Skills and Experience: - Experience in creating NFT staking projects on Tron - Strong knowledge of Tron blockchain technology - Ability to create fully functional prototypes and conceptual designs - Proficient in technical documentation and providing continuous support and updates - Strong communication skills for effective troubleshooting and problem-solving.

    $593 (Avg Bid)
    $593 Oferta medie
    32 oferte

    trabajos freelance Requerimientos: Tenemos: .Parámetros (Códigos) .Plan de Negoció .Hoja de Ruta .Viabilidad . Economía Sustentable, Autónoma y Automática .Regulaciones DAO, Criptomonedas y NFT .Branding y Marketing Buscamos: .Programador .Diseñar y Ejecutar Smart Contract .Prueba del Smart Contract en la Testnet .Diseño y Conexión de una Web para conectar al Smart Contract Gracias. Saludos Cordiale

    $642 (Avg Bid)
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    Tenemos: .Parámetros (Códigos) .Plan de Negoció .Hoja de Ruta .Viabilidad . Economía Sustentable, Autónoma y Automática .Regulaciones DAO, Criptomonedas y NFT .Branding y Marketing Buscamos: .Programador .Diseñar y Ejecutar Smart Contract .Prueba del Smart Contract en la Testnet .Diseño y Conexión de una Web para conectar al Smart Contract Gracias. Saludos Cordiales. Rafael

    $696 (Avg Bid)
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    Liquity Arbtrage Bot 5 zile left
    VERIFICAT

    # Liquity Arbitrage This project will perform an arbitrage of LUSD/ETH pair. This will be done by 2 steps 1. Swap ETH for LUSD at uniswap 2. Redeem LUSD for ETH at liquity # Design The project has two main components , one is the node server and another is the smart contract. The node server is responsible for keeping a track of the prices of ETH at chainlink and at uniswap. When we notice a price difference where there is a possiblity of a profit from arbitrage it will trigger the smart contract to perform the arbitrage between uniswap and liquity smart contracts. ### How is the amount of eth to be used for the arbitrage calculated ? We have three restrictions in determining the ETH that can be used for the arbitrage. 1) The ETH present in the arbitragers wallet 2) The redeemable...

    $2517 (Avg Bid)
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    I am looking for an experienced game developer to create a strategy and action/adventure game with a historical theme. The game will need to appeal to all ages, so a balance of complexity and accessibility is key. Ideal Skills and Experience: - Strong background in game development with a portfolio of successful projects - Proficient in programming languages such as C++, Java, or Python, solidity - Experience with game engines such as Unreal Engine. - Knowledge of game design principles and mechanics - Ability to create engaging narrative and characters - Understanding of multiplayer functionality and online features The ideal candidate will be able to bring our vision to life, creating a game that is both entertaining and educational. If you have a passion for game development and...

    $44354 (Avg Bid)
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    AAVE's flash loan smart contract code on github and youtube, so please check if the code is genuine and how to resolve the error. Also, I would like to have support until the end of arbitrage.

    $224 (Avg Bid)
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    5 oferte
    Ethereum Sandwich Bot 4 zile left
    VERIFICAT

    I would like to create a front-running sandwich bot based on Ethereum Block Chain with different contracts address that can be entered (Metamask, eth network). (Uniswap v2&v3) The BOT would essentially: - Scan the blockchain and find transactions based on certain criteria (pending on the block aka mempool). - Front-run (specific trade volumes, slippage and gas price) transactions by placing a buy order on the same block at the same time by setting a higher gas price automatically. - and buy up only to the maximum value (I set it manually (ETH)) that I have decided to trade and when only has x % (I set it manually) profit by calculating through the pending transaction amount(impact that it has his/her investment) & gas fees selected automatically & slippage (buy&...

    $1517 (Avg Bid)
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    Web3 dapp 4 zile left

    Want to fork a bsc contract to Tron and create a dapp

    $373 (Avg Bid)
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    17 oferte

    Hi there! I am looking for a developer to build a DAO platform with smart contract. The main purpose of the platform is voting, so the ideal candidate should have experience in creating voting systems on blockchain. I'm on the lookout for talented developers who know their way around Golang, smart contracts, and Python. I've got an exciting blockchain-based project lined up that involves building a snazzy Golang backend, implementing smart contracts, and dabbling in Python frontend development. I prefer the use of Binance Smart Chain as the blockchain platform. If you're intrigued and have the right skills, hit me up to dive deeper into the details! Let's make something awesome together.

    $706 (Avg Bid)
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    Register a Solana Domain 4 zile left
    VERIFICAT

    We need to register a .SOL domains using an api. You will implements only two operations: a) Register .SOL DOMAIN: Boolean result = registerSOLDomain(String domain_sol, String phantom_Wallet_private_key). result = true if the domain was registered or false if not (show error). b) Transfer .SOL Domain from a wallet to another wallet: Boolean result = transferSOLDomain(String domain_sol, String phantom_Wallet_source_private_key, String phantomWalletDestinatiob). result = true if the domain was registered or false if not (show error). To implement this project only free resources can be used .That is, we will not use features like quicknode, infura etc. It is all. We already know which domains we want to register and we know which domains are available.

    $98 (Avg Bid)
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    Hello, We have front end coded: Connects wallet, checks both USDT and PLS on pulsechain wallet balances and prints to screen. Also prints current PLS to screen and has conneted wallet ID. We need blockchain code: That upon clicking swap button on html page will take USDT entered from connected wallet and send to USDT cold wallet using gas PLS from different cold wallet. It will then send PLS amount from PLS cold walle to connected meta mask wallet.

    $654 (Avg Bid)
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    The contract has to contain the functions of TransferOwnership , Renounce Ownership, IERC20 & IERC20Metadata, ERC20 contract, Permit ( Balances, Allowances, Burnable, Ownable, Context, Permit, Governance of votes and delegation of votes, configure governance Funciones que tienen que funcionar bien > ( Transfer with SafeTokenERC20 , Approve, TransferFrom, UniswapV2pair, Burn Uint256 Value external hasta la dirección genesis, Decimals : 18 , Event Transfer & Event Approval. ) I need to add Context & Ownable. I don't want to have functions inside the code, like > Limited, pauseable, maxholdingamount, minholdingamount, before_ token transf I would also like to collaborate closely with a person who knows how to integrate interfaces in web3, with a good theme, d...

    $389 (Avg Bid)
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    Must show progress daily!!! I am looking for a skilled blockchain and UI developer to help create a smart contract for a swap and pool sales contract. The ideal candidate will have experience with Polygon and ERC-20 tokens. We are seeking a smart contract developer to create a Swap and Pool Sales Contract on the Polygon network using already deployed contracts for tokens. Ideally candidate can integrate and build UI. The tokens used for this contract are SC, SN, and SK reward token, and the staking contracts include LV1POS = 19SC:1SN, LV2POS = 19SC:2SN, LV3POS = 19SC:3SN, LV4POS = 19SC:4SN The flow of the swap is as follows: 1. Liquidity providers deposit any of the 4 POS into the swap pool. 2. The pool contract unstakes the POS, leaving the SC and SN tokens loose in the ...

    $883 (Avg Bid)
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