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    34 робіт знайдено, ціни вказані в USD
    Solidity smart contract token 6 дні(-в) left
    ПІДТВЕРДЖЕНО

    Hello, looking for a solidity dev that can make a simple but specific smart contract for me. Please message me for more details if you're an experienced solidity dev.

    $517 (Avg Bid)
    $517 Сер. заявка
    91 заявки

    I want to create contract that transfer a token (Polygon) To Another Wallet Automatically . There are Approx 250 wallet that need To Transfer Token To One Single Wallet

    $13 (Avg Bid)
    $13 Сер. заявка
    3 заявки
    Need a smart contract deployed for an existing website 6 дні(-в) left
    ПІДТВЕРДЖЕНО

    As the project name states. More details will be communicated via chat.

    $75 (Avg Bid)
    $75 Сер. заявка
    35 заявки
    CLI script for web3 data queries and wallet creation 5 дні(-в) left
    ПІДТВЕРДЖЕНО

    I want a custom CLI script to create blockchain wallets from bip39 method using with/without custom input, then run a custom query on those wallets across multiple chain on either one off mode or continuous mode, and output results based on the type of query. This script has 5 sections: 1. Wallets(creation, selection, or manual input) 2. Scrape Web3( all available blockchain or based on user choice.)[Initially we can use API from multitude of services and later upgrade to saving a copy of chain locally or running a node to query data] ( Maintain database of all the actions locally, fetch custom reports based on user input) 4. Authentication and data security (open to ideas, but basic requirement is to create profiles and then run separate data requests) 5. Reports(can be visual using ch...

    $469 - $938
    $469 - $938
    0 заявки

    To create a governance token[Tokenomics] with stake and farm, the farm will have two types, normal and premium and their automatic reward distribution, and referral reward function up to 21 levels.

    $1844 (Avg Bid)
    $1844 Сер. заявка
    12 заявки
    build me an entire DEX -- 2 5 дні(-в) left
    ПІДТВЕРДЖЕНО

    i want a dex to be built similar to pancakeswap/uniswap

    $849 (Avg Bid)
    $849 Сер. заявка
    13 заявки
    build me an entire DEX 5 дні(-в) left
    ПІДТВЕРДЖЕНО

    i want a dex to be built similar to pancakeswap/uniswap

    $584 (Avg Bid)
    $584 Сер. заявка
    8 заявки

    Urgent work, please bid you can accomplish the task soon.

    $108 (Avg Bid)
    $108 Сер. заявка
    20 заявки

    implement a ethereum smart contracts based blockchain system we will need a simple front end and a backend to do smart contracts for an academic project, please start bid with "electronic health record"

    $114 (Avg Bid)
    $114 Сер. заявка
    12 заявки
    Lottery Smart Contract 4 дні(-в) left
    ПІДТВЕРДЖЕНО

    Looking for a experienced developer to build lottery contract on ERC-20 Chainlink VRF code and infrastructure will be used and for this contract UI will be designed for our website. Budget is 600 USD

    $570 (Avg Bid)
    $570 Сер. заявка
    110 заявки

    I am building a DeFi project and it's almost completed. In order to complete quickly, I need to hire an excellent solidity and dapp developer who is professional in Solidity, Smart contract, Web3, React.js, DeFi, and so on. List your experience and skills with example links. This is big project for long-term relationship so I need to test simple task first then decide to hire for long-term. Test task will be paid too. Candidates without sample projects will be ignored.

    $360 (Avg Bid)
    $360 Сер. заявка
    33 заявки

    Требуется создать криптовалютную биржу под ключ. По функционалу: - спотовая торговля - маржинальная торговля - фьючерсы - возможность листинга токенов - возможность проведения Token ICO - НАТИВНАЯ ТОРГОВЛЯ (без подключения к бинанс и прочим провайдерам) Прочие моменты буду обсуждать с человеком, который в этом разбирается.

    $35000 (Avg Bid)
    $35000 Сер. заявка
    1 заявки
    Blockchain & Token 3 дні(-в) left

    Criação de Token (14.000.000) de unidades rodando em Servidor Blockchain na rede Ethereum. O Token sera vinculado a capital social de uma empresa e informará Latitude e Longitude referencia de localizaçao de imovel. Smartcontratct regulara vinculo com empresa e localidades. Precisará estar em Wallet propria e pronta para venda online + futura colocação em Coibase e Binance.

    $611 (Avg Bid)
    $611 Сер. заявка
    62 заявки
    Blockchain & Token 3 дні(-в) left
    ПІДТВЕРДЖЕНО

    Criação de Token (14.000.000) de unidades rodando em Servidor Blockchain na rede Ethereum. O Token sera vinculado a capital social de uma empresa e informará Latitude e Longitude referencia de localizaçao de imovel. Smartcontratct regulara vinculo com empresa e localidades. Precisará estar em Wallet propria e pronta para venda online + futura colocação em Coibase e Binance.

    $648 (Avg Bid)
    $648 Сер. заявка
    47 заявки
    update create simple uplaoder dapp with web3 new way 2 дні(-в) left
    ПІДТВЕРДЖЕНО

    the ipfs infura uplod function is dubrected and i need update it with new endpoint, check this link also see teh file at attached

    $11 / hr (Avg Bid)
    $11 / hr Сер. заявка
    17 заявки
    change NFT upload file function from ipfs infua to ipfs pinata 2 дні(-в) left
    ПІДТВЕРДЖЕНО

    i have project uplaod the nfts to infura ipfs and want to change the end point to please need it fast its should not take 2 hours done the file at ATTACH

    $23 (Avg Bid)
    $23 Сер. заявка
    4 заявки
    Tokenomics for a global crypto project 2 дні(-в) left
    ПІДТВЕРДЖЕНО

    hello i am looking for an expert who can help me designing a crypto Tokeomics for a new project

    $60 (Avg Bid)
    $60 Сер. заявка
    14 заявки
    create simple uplaoder dapp with web3 2 дні(-в) left
    ПІДТВЕРДЖЕНО

    i only need the function that is save image to ipfs, working create sekect iage and only button click save at at ipfs you can only update teh function here to work

    $40 (Avg Bid)
    $40 Сер. заявка
    11 заявки
    Create crypto-to-crypto payment software for a payment terminal 2 дні(-в) left
    ПІДТВЕРДЖЕНО

    EXPLANATION SCHEMA PAYMENT APPLICATION FOR TERMINAL PAYMENT 1. The customer makes a purchase, opens his payment application and scans his QR code on the payment terminal of the merchant who has previously entered the amount of the purchase to be paid. 2. The amount of the transaction is displayed on the customer's screen and can click on "validate". 3. When the transaction is validated by the customer, the amount of the purchase is transferred immediately from the customer wallet to the merchant wallet, a confirmation that the amount of the transaction is available is sent through a green pop-up on the customer application and on the merchant's terminal validating the compliance of the transaction. 4. The amount is then converted into FIAT currency and transferred to th...

    $5191 (Avg Bid)
    $5191 Сер. заявка
    22 заявки
    URGENT - Simple NFT Create function fix now 2 дні(-в) left
    ПІДТВЕРДЖЕНО

    URGENT - Simple NFT Create function fix i hvae project yasterday worked normal but today dont work and i think the proplem because the page source code at attached

    $9 / hr (Avg Bid)
    $9 / hr Сер. заявка
    20 заявки

    Hello I need a smart contract programmer for tokens to do a special course to teach me all the details and how to develop contracts Our maximum budget is $500, please pay attention

    $366 (Avg Bid)
    $366 Сер. заявка
    24 заявки
    URGENT - Simple NFT Create function fix 2 дні(-в) left
    ПІДТВЕРДЖЕНО

    URGENT - Simple NFT Create function fix i hvae project yasterday worked normal but today dont work and i think the proplem because the page source code at attached

    $44 (Avg Bid)
    $44 Сер. заявка
    14 заявки
    Experienced NFT smart contracts developer 1 день left
    ПІДТВЕРДЖЕНО

    Hi, everyone. I have several problems relating NFT smart contract. I need to write NFTs smart contracts on the Binance Smart chain, and also for these NFTs, I need APIs to implement in our project for selling the NFTs directly from my website. Also, I need to implement the APIs for the wallets so users can connect their wallets and buy the NFTs from our website. Please reply with a proper solution & only an experienced developer.

    $14 / hr (Avg Bid)
    $14 / hr Сер. заявка
    62 заявки
    Build me a code 1 день left

    Build a code for me to use to do flashloans with out to much hassle just copy and paste it abd choose how many units i want to buy abd the name of them then thats about it and use it thru remix can u help me? I want a great sucess rate from this too or else for it not to work .

    $150 (Avg Bid)
    $150 Сер. заявка
    10 заявки
    Solidity Smart Contract Fix 1 день left
    ПІДТВЕРДЖЕНО

    This is a Solidity Smart contract fix project. If you are in the middle of another project please ignore this This is a two hour job at the max, I know because I am a developer myself This is the audit report. Critical error has already been fixed. These are the points need to be fixed. All are minor logic issues probably one or two lines fixes. BLC MAL MTS L01 L02 L07 L09 L13 those issues I need to be fixed Contract -

    $22 / hr (Avg Bid)
    $22 / hr Сер. заявка
    26 заявки
    Need a working prototype using hyperledger fabric 23 годин(-и) left
    ПІДТВЕРДЖЕНО

    Hello, my name is Shubham. I want a small project using Hyperledger fabric. Basically I want a project that can demonstrate a permissioned network or blockchain. And Hyperledger fabric is known for permissioned blockchain. 1. Please suggest me a topic that solves a problem using Hyperledger fabric in university environment. Like you can build a course or online assignment sharing network etc. 2. I want latency and throughput tests done on the Hyperledger fabric network. 3. Basically I want it for my research purpose so I want to test the permissioned blockchain and screenshots of all the testing done. 4. It should solve a real life problem. 5. I just need a working prototype not a industrial level software 6. I want more of technical literature and analysis

    $1216 (Avg Bid)
    $1216 Сер. заявка
    11 заявки

    Hello freelancers. I am currently looking for a senior solidity engineer who can join our team. We are planning to build dextool project. You should be familiar with solidity, Uniswap and complicated mathematical logic. Trial work will be required. If you are interested, please drop a message here.

    $29 / hr (Avg Bid)
    $29 / hr Сер. заявка
    38 заявки
    Solidity Contract fix 9 годин(-и) left
    ПІДТВЕРДЖЕНО

    I have another project and bnb contract need some issues to be fixed after the audit my dev is travelling so it might be delayed I need to fix this sooner BLC MAL MTS L01 L02 L07 L09 L13 those issues I need to be fixed

    $21 / hr (Avg Bid)
    $21 / hr Сер. заявка
    60 заявки

    I wanna you add the vesting: basically I need to give 50% Immediately the presale is released and 25% every 30 days, but leave those public variables so that the Owner can change the percentages, and the number of days freely after But once the pre-sale has started, these values ​​cannot be changed, only the Owner of the contract will be able to make settings before starting the pre-sale, this is for security for the Investors You should be able to provide the sourcecode without bugs. If you pass this test i could provide you my agency works: costum contracts,dapps evm chains, uniswap forks. Please tell me your price for: Uniswap forks wnd other samples so i can understand your pricing and timeframe. Sourcecode where add the vesting code:

    $21 (Avg Bid)
    $21 Сер. заявка
    10 заявки
    writing code for a cryptocurrency 5 годин(-и) left
    ПІДТВЕРДЖЕНО

    writing code for a cryptocurrency

    $44 (Avg Bid)
    $44 Сер. заявка
    24 заявки

    i have a python script IT requires cplex to run it . I want alternate open source software to run the script and edit script for that alternate software if required.

    $14 / hr (Avg Bid)
    $14 / hr Сер. заявка
    14 заявки
    I need a soldity developer Закінчується left

    I need a revenue sharing solidity programme for BTC

    $445 (Avg Bid)
    $445 Сер. заявка
    41 заявки
    NFT Project, Mint Site + Smart Contract Закінчився left
    ПІДТВЕРДЖЕНО

    Hi I have developed smart contract (partially done) need someone to adjust it and then update the whole thing. please message me so I can send you what's done and you can assess real cost of project

    $418 (Avg Bid)
    $418 Сер. заявка
    109 заявки
    Build Flutter Smart Contract dapp 68 дні(-в) left
    ПІДТВЕРДЖЕНО

    I have Ethereum smart contract. And I need mobile flutter app need to call method on contract. Flutter app must send transaction to mobile metamask wallet.

    $300 (Avg Bid)
    $300 Сер. заявка
    34 заявки