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!

From 19,481 reviews, clients rate our Solidity Experts 4.87 out of 5 stars.
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    13 jobs found, pricing in USD

    We are currently seeking a proficient and experienced professional who specializes in gas-efficient airdrops using smart contracts. If you possess the necessary expertise in this area and have a proven track record of executing successful gas-efficient airdrops, we invite you to apply for this project.

    $43 (Avg Bid)
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    5 bids

    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 ...

    $419 (Avg Bid)
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    5 bids

    Here is details for my project We want to deposit via this smart contract but not working well Please reach out to me if you have enough experience in this

    $179 (Avg Bid)
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    19 bids

    Dapp is already live. Smart contract is functioning fine. Need to sort out some minor bugs on the front end and make some cosmetic changes on the Dapp's front end. Developer could also be hired permanently to maintain the Dapp and be paid on a monthly basis split into 2 equal payments.

    $141 (Avg Bid)
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    7 bids

    I am looking for a skilled developer who can create a token using the Solidity program. The token standard that I have in mind is ERC-20. The primary purpose of the token is for payment. I am looking for standard features only and do not have any unique token features or requirements. Ideal skills and experience for this job include proficiency in Solidity programming, experience with ERC-20 token creation, and knowledge of blockchain technology.

    $1236 (Avg Bid)
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    76 bids
    Solana Simple Project 4 days left
    VERIFIED

    Solana Simple Project 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.

    $105 (Avg Bid)
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    12 bids

    We are looking for an experienced blockchain developer to create a custom blockchain solution based on Bitcoin Core and Tron. The project will be divided into several milestones, each focusing on key components of the blockchain ecosystem. We will pay for each milestone upon successful completion. Milestones: Blockchain in Testnet: Set up a testnet environment for the blockchain, ensuring proper configuration and functionality. Mining Software CLI for Linux: Develop command-line mining software compatible with Linux systems, enabling efficient mining operations. Mining Pool: Design and implement a robust mining pool, allowing multiple miners to collaborate and share resources. Mining Pool Website: Create a user-friendly website for the mining pool, providing miners with essential info...

    $4259 (Avg Bid)
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    76 bids

    I need to develop a Stable Coin on Polygon. I have the details ready, my budget is less. Either help understand the logic or develop it for me.

    $24 / hr (Avg Bid)
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    20 bids

    I am looking for a freelancer to develop an ERC-20 copy trading program that will run on the Ethereum platform. The program's interface should be highly customizable and advanced. Ideal Skills and Experience: - Proficiency in developing ERC-20 copy trading programs - Strong understanding of the Ethereum platform - Experience in developing advanced and customizable interfaces - Knowledge of trading strategies and market analysis - Ability to work collaboratively with the client to ensure project success I input the address to monitor, program refreshes target address every 30 seconds or so. If that address makes a trade on uniswap / sushiswap or some other exchange I want the program to do the same exact trade as the address it's been monitoring. Program must connect with Meta...

    $774 (Avg Bid)
    $774 Avg Bid
    22 bids

    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 and staking. 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 pool. 3. Buyers...

    $854 (Avg Bid)
    $854 Avg Bid
    48 bids
    Arbitrage Bot 5 hours left
    VERIFIED

    Hi I am looking to PURCHASE a demonstrable PROFITABLE ARBITRAGE crypto bot on ANY chain. It must have a smart contract and bot functionality. ONLY apply if you have one that fits the EXACT criteria and you can show me EVIDENCE of this bot in the form of recent wallet addresses. I DON'T want an exchange to exchange bot or software that shows me where arbs could be, etc, etc. If you have read the above description and have exactly what I am looking for please start with your application to me with these keywords, I HAVE THE BOT THAT YOU NEED. Thank you.

    $1258 (Avg Bid)
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    29 bids

    Estou buscando desenvolver uma funcionalidade para o meu site, que atualmente aceita pagamentos apenas em Tether (USDT) BEP-20. Quero um similar ao que é feito no PixSwap (). Eu gostaria de permitir que meus clientes comprem USDT diretamente de mim, usando a API da PancakeSwap para a compra de tokens e a API da EFi (antiga Gerencianet) para processar pagamentos via PIX. Além disso, pretendo cobrar uma taxa sobre cada transação. O fluxo de trabalho seria algo assim: O usuário entra com a quantidade de USDT que deseja comprar e o endereço da carteira para onde deseja que os tokens sejam enviados. O sistema usa a API da EFi para processar o pagamento via PIX. Uma vez que o pagamento é confirmado, o sistema usa a API da PancakeSwap para compr...

    $451 (Avg Bid)
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    14 bids

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