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Bitcoin is a crypto currency, with the creation and the transfer of the bitcoins being based on a protocol that does not depend on the central authority. The coins can be transferred through computers or through smartphones and related devices, without the necessity of having a financial institution as an intermediate. This concept was established by Satoshi Nakamoto in 2008 and it was geared towards the world of electronic cash systems. If you understand more about this topic on a professional level, then you have a better chance to enjoy the advantages of being a freelancer at Freelancer.com.

Bitcoin has its own technical part that needs to be addressed by professionals. If you are one of them, then you should be on a platform that ensures the consistency of job posting by clients. When working as a bitcoin freelancer at Freelancer.com, you will have access to many of the jobs posted by clients from all over the world and bid on those that are within your professional level. There is too much to enjoy while working at the leading freelancer platform online, including getting paid at rates that your services deserve, giving you the encouragement you need to keep on working on more Bitcoin projects.

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    15 travaux trouvés au tarif de EUR
    Cryptocurrency Expert 6 jours left
    VERIFIÉ

    Cryptocurrency token or coin with website

    €33 (Avg Bid)
    €33 Offre moyenne
    9 offres
    Cryptocurrency token or coin 6 jours left
    VERIFIÉ

    New Cryptocurrency token or coin everything from A to Z including listing in exchange website and control panel logo

    €489 (Avg Bid)
    €489 Offre moyenne
    48 offres
    Install OpenDax 6 jours left
    VERIFIÉ

    Install OpenDax with about 15 currencies (native, bep20, erc20). Integrate liquidity module.

    €3635 (Avg Bid)
    À la une
    €3635 Offre moyenne
    16 offres

    Can you tell me any trusted/ legit cloud mining website or app?

    €25 / hr (Avg Bid)
    €25 / hr Offre moyenne
    3 offres

    Hi, We are very experienced creating web2 and nft marketplace apps. But for topics above we have not experience yet. The app will work like this: A user goes to an exchange office, deposit USD. In the system, user can purchase coins listed below and then, those purchased coins will be transferred to his/her wallet/wallets. Users has to view real time coin prices without a lag. Users pick a coin (for now some specified coins will be used, listed below). User selects a coin and buy/sell/withdraw. In this process users will view and use our app but at the same time they will be connected to a CEX in order to purchase crytpo coins. There will be only one price for each coin. After that we will add some commission (like 1%, the commissions will be holded in a specified cold wallet). Then tr...

    €8146 (Avg Bid)
    €8146 Offre moyenne
    31 offres

    I want to hire cryptocurrency trading professionals You only need to send a sign by trading view to open deals Successful trades will be paid

    €19 (Avg Bid)
    €19 Offre moyenne
    7 offres

    Building a Cryptocurrency Trading Platform

    €823 (Avg Bid)
    €823 Offre moyenne
    33 offres
    PHP Crypto Exchange 4 jours left
    VERIFIÉ

    Design und Programmierung eines Crypto-Exchanges. Der Exchange soll neben einem Euro-Wallet folgende Coins unterstützen Bitcoin Ethereum BNB XRP Terra Cardano Solana Avalanche Dogecoin Polkadot Cronos Litecoin Monero Zusätzlich soll ein eigener auf Ethereum basierender Stablecoin eingeführt werden, so daß beim Tauschen immer als zwischenschritt in den Stablecoin gewechselt wird.

    €2507 (Avg Bid)
    €2507 Offre moyenne
    20 offres

    I am looking for a competent person to create a web interface that will propose to replace a bitcoin transaction by another one. This is a simple function integrated to the bitcoin protocol. The goal is to create a web solution so that the user can: - Specify the amount he would like to send to an address X - Specify the Y address to which the second transaction will be sent - Have a button at his disposal to proceed to the sending of each transaction And finally, a percentage that will be credited to me each time the user replaces his first transaction.

    €501 (Avg Bid)
    €501 Offre moyenne
    43 offres
    Need Crypto ( BNB or LUNA ) 4 jours left
    VERIFIÉ

    i am looking for crypto holders ... i need BNB or LUNA .. thank you

    €169 (Avg Bid)
    €169 Offre moyenne
    14 offres

    I need a metaverse developer and a consultant, you is familiar with tools used for metaverse development and has ideas on how it works and everything. You must understand basics of blockchain, crypto, sandbox, decentraland and NFTs. I need you to be a part of our team and work along with us in this project, you have to help us in metaverse developer and give us the required consultation around my questions related to metaverse development.

    €930 (Avg Bid)
    €930 Offre moyenne
    18 offres

    i want a simple script (one php file no design ) that : connect api »» sell ALL the BTC to USDT (with the actual best price) »» withdraw all the USDT to the given address

    €21 (Avg Bid)
    €21 Offre moyenne
    8 offres

    We are searching for good quality coded P2P crypto trading script,as possible with self hosted wallets. Send offers with demo link, please dont offer the scripts like from codecanyon,no one from there is good and stable.

    €333 (Avg Bid)
    €333 Offre moyenne
    16 offres

    Create the whole world to generate a new Blockchain-based cryptocurrency. Proof-of-stake model, also create the pool and nodes model. Initial product will be based on binance.

    €1676 (Avg Bid)
    €1676 Offre moyenne
    67 offres

    I'm urgently looking for a fully customizable cryptocurrency wallet and funds manager written in python 3, that can safely and efficiently move funds between addresses and to and from all large CEX's and DEX's. I need this application to be customizable so that I can implement it as part of cryptocurrency trading bots that I am developing. The funds manager application should be compatible with BTC, USDT and XMR, and also allow for payments to and from legacy, bech32 and segwit btc addresses. I need to be able to send instructions to the funds manager through a command prompt as well by calling it in python applications. This project is fairly time-sensitive and I would like to have a working result within a few days if possible.

    €495 (Avg Bid)
    €495 Offre moyenne
    13 offres

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