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Blockchain is a distributed register that is used to maintain a continuously growing list of records, called blocks. It has revolutionary applications in finance (such as cryptocurrencies like Bitcoin) and decentralized applications like online voting.

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    30 trabajados encontrados, precios en USD
    Bug fixing in Crypto wallet 6 días left
    VERIFICADO

    I have a Cryptocurrency wallet app and need a Blockchain Expert to fix bugs in the app.

    $535 (Avg Bid)
    $535 Oferta Promedio
    2 ofertas

    Make me a HYIP telegram bot. Deposit with Bitcoin.

    $189 (Avg Bid)
    $189 Oferta Promedio
    6 ofertas

    Hi, I want to build a crypto trading plateform, so i have some questions about how to manages Apache Kafka and MySQL database to get high performance per second. How they are used, do they add directly new orders to MySQL database or first to Kafka and then Sync to MySQL ? Or do they add first to MySQL and they share new entry to other internal services using Kafka ? Real experience in trading...

    $30 (Avg Bid)
    $30 Oferta Promedio
    1 ofertas
    $159 Oferta Promedio
    18 ofertas

    [I would like to pay for the performance fee without making a request for the start fee.] Although it is incomplete as a function, The basic trading code is complete. The predecessor is probably writing code in C#. Furthermore, I hope for the modification for the function addition of trade, and the implementation of BTC's automatic collection function using API. The first thing you need to...

    $1500 - $3000
    Sellado
    $1500 - $3000
    17 ofertas
    Cryptocurrency Shop 5 días left
    VERIFICADO

    I need to develop a sales-only cryptocurrency website. Portuguese language as per attached instructions

    $1538 (Avg Bid)
    $1538 Oferta Promedio
    32 ofertas
    Help purchase ENS domain - .ETH 5 días left
    VERIFICADO

    Need to find someone who has bought .ETH domain from the ENS service and understands how this all works. Want to purchase a domain and create sub domains from it. If I find someone who can help This project can lead on to the full development of a service with ens domains with a larger budget. ****Please contact me with information on your experience in this field.

    $319 (Avg Bid)
    $319 Oferta Promedio
    2 ofertas
    create a coin on ether asap 5 días left
    VERIFICADO

    hello, I am looking to create a coin on ether. I am looking hire right away. Please send linkedin. Thank You

    $228 (Avg Bid)
    $228 Oferta Promedio
    16 ofertas

    Hello! I need to get build a crypto currency exchange like Binance, Poloniex or Bittrex. Following works need to be done: 1. Development & Deployment of crypto currency exchange with all basic feature. 2. Deployment of BTC, ETH, LTC, BCH & BNB nodes 3. Main markets would be BTC, ETH, BCH & BNB I prefer to reward the project who have already developed similar project. If you have alr...

    $1161 (Avg Bid)
    $1161 Oferta Promedio
    17 ofertas

    Hi ! Nice to meet you my name is Marie and i come from italy i have a bachelor degree in chinese and business i would like to meet some good smart people that want to share their knowledge and create a new business idea about real estate :) if u have a good knowledge about developing app on wechat ! And also about blockchain can be a plus ! Thanks guysss

    $17 / hr (Avg Bid)
    $17 / hr Oferta Promedio
    23 ofertas

    Need to recruit Block chain consultants for my company

    $1437 (Avg Bid)
    $1437 Oferta Promedio
    1 ofertas

    Hello, developers! Requires a person with good knowledge in the following areas: 1. Blockchain, Ethereum, in general Cryptocurrencies; 2. Smart-contracts; 3. ICO development, wallet development; 4. Strong knowledge in JS, specially in NodeJS and related with it ES6 standard. We have launched a long-term project that requires a whole team of developers. Right now we are looking for JS developers...

    $47 / hr (Avg Bid)
    $47 / hr Oferta Promedio
    49 ofertas

    We need Ethereum Smart Contract Experts who have previously done Audits and are aware about smart contract attacks.

    $162 (Avg Bid)
    $162 Oferta Promedio
    4 ofertas

    Build me a Penalty Shoot DAPP (ON TRON BLOCKCHAIN)

    $34 / hr (Avg Bid)
    $34 / hr Oferta Promedio
    17 ofertas

    Hello everyone we are searching for blockchain app developer. i want a demo app same as blockchain you can go to playstore and search blockchain i dont need any functional work only want same front end same as blockchain as demo account.

    $1753 (Avg Bid)
    $1753 Oferta Promedio
    16 ofertas

    I need to implement cryptocurrency ZEC (ZCASH) and XRP ripple on generalbytes systems, the extension will have to take the reference price from kraken api, it will have to send from wallet api coinbase and buy from api kraken github project [iniciar sesión para ver URL]

    $218 (Avg Bid)
    $218 Oferta Promedio
    4 ofertas

    I would like to create P2P Lending Platform like Ethlend or Dharma .

    $733 (Avg Bid)
    $733 Oferta Promedio
    10 ofertas
    blockchain expert 2 días left

    need blockchain expert with transaction

    $300 (Avg Bid)
    $300 Oferta Promedio
    19 ofertas

    Let's talk about the details of the project. Please contact me for the time being. The language is python or node.js, whatever is OK

    $1286 (Avg Bid)
    $1286 Oferta Promedio
    41 ofertas

    Hello need a website like [iniciar sesión para ver URL] with similar function and complete solution. People will hold their crytpto assets in wallet but we will have the ai bot that will offer them an 10-20% intrest on month in our token. we will have the control of the token. Need to Complete within 7 days. Please place actual amount. Thanks

    $733 (Avg Bid)
    $733 Oferta Promedio
    26 ofertas

    Hello need a website like [iniciar sesión para ver URL] with similar function and complete solution. Need to Complete within 7 days. Please place actual amount. Thanks

    $346 (Avg Bid)
    $346 Oferta Promedio
    42 ofertas

    I gonna discuss more detail. So I am ready to have discuss more detail, If you aren't blockchain expert, not bid please.

    $9 / hr (Avg Bid)
    $9 / hr Oferta Promedio
    26 ofertas

    I need a game developer, with experience in dapps and smart contracts from ethereum, please do not ask any travelers with little experience in the area of cryptocurrencys Please read the article below, will be built a whitepaper later, I need a budget for the development of this game [iniciar sesión para ver URL]

    $3193 (Avg Bid)
    $3193 Oferta Promedio
    27 ofertas
    LinkedIn manager 1 día left
    VERIFICADO

    We need a linkedIn manager for 4 personal accounts, the manager must be aware of the blockchain world and he/she has to know how to grow a profile. English language required, better if also italian

    $2209 (Avg Bid)
    $2209 Oferta Promedio
    18 ofertas

    Looking for people who are expert in Blockchain and Cryptocurrency. you must have any crypto account with previous experience.

    $161 (Avg Bid)
    $161 Oferta Promedio
    9 ofertas

    i need the blockchain developer

    $203 (Avg Bid)
    $203 Oferta Promedio
    7 ofertas

    One Click Digital Payments You are supposed to come up with a One Click Digital Payment for MSME’s (Not only organized retail). Your solution should provide Frictionless Single Click Payment, Which does not involve any new app and behaves like cash; the solution can be on decentralized Blockchain network, Social digital payments, wearable payments or any such technologies! (Most payment se...

    $2908 (Avg Bid)
    $2908 Oferta Promedio
    17 ofertas

    Looking for crypto exchange website developer please apply only if you have developed similar exchange websites earlier You must apply with admin and user login of a demo exchange site you have.

    $1844 (Avg Bid)
    $1844 Oferta Promedio
    18 ofertas

    Hi, I need to know how crypto exchange process many orders per second using KAFKA and then synchronize to Database, and cache to redis. If you are qualified for this task, please give me a details from chat on how to process it and then i can juge to create milestone to do the job. Supported language: PHP Bid only if you already experienced this kind of job before.

    $35 (Avg Bid)
    $35 Oferta Promedio
    4 ofertas
    Hyperledger prototype 3 horas left
    VERIFICADO

    Hi We consider a hyperledger-based blockchain network and are going to build a sort of dapp for a testing purpose. We may provide a front-end website. Please apply and we would share the details. 'Important Notice' We need a specialist who has experience of building the full hyperledger system from the bottom, not a man who've partly participated in the development of it.

    $661 (Avg Bid)
    $661 Oferta Promedio
    27 ofertas