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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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    19 znalezione projekty, cennik w USD

    BitPUMP Bitcoin pump and down signals Platform : IOS & Android App read api bitcoin, ETH - BUSD price binanace api app sending signals ( notifications ) according to algorithem : ( and the notification for ETH is default disable and user can enable ) 15$ from the past 1 sec and then in the 2 second also move 15$ sending notification: "Alert: BTC high volatility - Price xxxx" ( both for the up and the down ). EX: x= 39000 y = 39010 z= 39020 = send notification "Alert: BTC high volatility - Price x" x= 39020 y = 39010 z= 39000 = send notification "Alert: BTC high volatility - Price x" after notification send it will not send for the next 2min. *Notifications sent with arrow icon up or down accordenlly. 10 sec if price is up or down 0.1% send &qu...

    $165 (Avg Bid)
    $165 Średnia Oferta:
    5 składanie ofert

    I looking for a developer that can build a escrow site for me. Example, Buyers can buy cryptocurrencies at the rate they're convenient with and receive it in any crypto wallet they wish such as Yellow card, bundle , Binance , Coinbase , Paxful , Trustwallet and more Sellers can now define a Min & Max amount on their offer.. A unique link to promote your crypto and deal with users around the world.. Escrow account to ensure buyers commit to payment.. Your crypto offers are published on your crypto store.. All customers on the site get notified every time you post or modify your crypto offers... Sellers create a crypto store on site and become his own boss they can sell Bitcoin, Ethereum, Litecoin, Shiba and other cryptocurrencies they own from any crypto wallet such as Bin...

    $979 (Avg Bid)
    $979 Średnia Oferta:
    24 składanie ofert

    We have a PHP website that accepts payments through a third-party crypto API. We want to remove this API and develop our payment gateway where people can choose a package from our platform and be able to pay in BTC / USDT and OUR Token. Please provide your offer and timeline.

    $200 (Avg Bid)
    $200 Średnia Oferta:
    17 składanie ofert
    Blockchain Devoloper need 5 dni left
    ZWERYFIKOWANY

    Urgent needed, blockchain devoloper, create a new block chain with coin. Like bitcoin/

    $23 / hr (Avg Bid)
    $23 / hr Średnia Oferta:
    39 składanie ofert

    guide me how to exchange on with my own token. I have created my own token, but i dont know how to create liquidity through pool a correct way. Please guide me how to do it and complete the transfer on my own.

    $116 (Avg Bid)
    $116 Średnia Oferta:
    5 składanie ofert

    Example of script : Features Easy Registration and Login for users God Mode: Simplified and appealing dashboard Reset/Change user password from Admin Dashboard Change user password from Admin Dashboard Block user from Admin Dashboard Credit user wallet from Admin Dashboard Change Admin password Create Multiple Admins In-built Ticket/Support System In-built Testimonial submission and approval system Settle issues between users (Court Cases) Switch between manual and automatic merging of pledges Notice Board to all users Wallet System with Credits transfer between users REQUIREMENTS: should you encounter errors Ensure the following before contacting support Are you using a standard web hosting just like NAMECHEAP Ensure you are using Php 7.0 or higher Ensure File info extension is enabled ...

    $18 / hr (Avg Bid)
    $18 / hr Średnia Oferta:
    31 składanie ofert

    HI, I am urgently looking for professionals / developers / experts in Blockchain, Crypto, NFT etc. Awesome deal for you. Thanks

    $32195 (Avg Bid)
    $32195 Średnia Oferta:
    19 składanie ofert

    I want someone to teach me how to buy crypto on a decentralised exchange

    $15 (Avg Bid)
    $15 Średnia Oferta:
    24 składanie ofert
    Cryptocurrency Expert 3 dni left
    ZWERYFIKOWANY

    Cryptocurrency token or coin with website

    $35 (Avg Bid)
    $35 Średnia Oferta:
    9 składanie ofert
    Cryptocurrency token or coin 3 dni left
    ZWERYFIKOWANY

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

    $540 (Avg Bid)
    $540 Średnia Oferta:
    50 składanie ofert
    Install OpenDax 3 dni left
    ZWERYFIKOWANY

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

    $3908 (Avg Bid)
    Wyróżniony
    $3908 Średnia Oferta:
    16 składanie ofert

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

    $27 / hr (Avg Bid)
    $27 / hr Średnia Oferta:
    3 składanie ofert

    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...

    $9518 (Avg Bid)
    $9518 Średnia Oferta:
    34 składanie ofert

    Building a Cryptocurrency Trading Platform

    $874 (Avg Bid)
    $874 Średnia Oferta:
    34 składanie ofert
    PHP Crypto Exchange 1 dnia left
    ZWERYFIKOWANY

    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.

    $3979 (Avg Bid)
    $3979 Średnia Oferta:
    23 składanie ofert

    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.

    $569 (Avg Bid)
    $569 Średnia Oferta:
    41 składanie ofert
    Need Crypto ( BNB or LUNA ) 1 dnia left
    ZWERYFIKOWANY

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

    $181 (Avg Bid)
    $181 Średnia Oferta:
    14 składanie ofert

    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.

    $999 (Avg Bid)
    $999 Średnia Oferta:
    18 składanie ofert

    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

    $23 (Avg Bid)
    $23 Średnia Oferta:
    8 składanie ofert

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