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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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    37 Gefundene Jobs, Preise in EUR

    HIRING (HOURLY PAYMENT) AN EXPERT CRYPT0-TRADER (ARBITRAGE) ON H-I-G-H COMMISSION BASIS. READ THE PROJECT CAREFULLY BEFORE BIDDING.

    €40 / hr (Avg Bid)
    €40 / hr Gebot i.D.
    1 Angebote

    HIRING (HOURLY PAYMENT) AN EXPERT CRYPT0-TRADER (ARBITRAGE) ON H-I-G-H COMMISSION BASIS. READ THE PROJECT CAREFULLY BEFORE BIDDING.

    €40 / hr (Avg Bid)
    €40 / hr Gebot i.D.
    2 Angebote

    I need to run services to provide an cryptocurrency wallet for crypto coin need only to provide BTC ETH XMR DASH and DDKOIN wallet like what exodus , coinbase , trust wallet other wallet in the market. the system have have a security level to product the user wallet account need app for android / iOS. I would like it designed and built. please let me know if you can do this. and please bid if...

    €531 (Avg Bid)
    €531 Gebot i.D.
    5 Angebote

    We need graphic interface improved. Our website: [Zur Anzeige der URL Anmelden]

    €949 (Avg Bid)
    €949 Gebot i.D.
    18 Angebote
    StockChart 6 Tage left

    I need some help with my business.

    €31 / hr (Avg Bid)
    €31 / hr Gebot i.D.
    8 Angebote
    Admin. & Sales executive(VA) 6 Tage left
    VERIFIZIERT

    Need someone who is able to search online for needed information like email addresses and contact names. Also must be able to make phone calls when needed to get further information.

    €342 (Avg Bid)
    €342 Gebot i.D.
    23 Angebote

    IMMEDIATELY WANTED (Hourly Pay) A Crypt0 Trading Expert On C0inMarketCap (If You're Not, Then Don't Bid). BID NOW.

    €45 / hr (Avg Bid)
    €45 / hr Gebot i.D.
    4 Angebote
    Need ERC20 Token Expert 6 Tage left
    VERIFIZIERT

    I Need ethereum token expert. who has proper knowledge of erc20 token contract. plus he is good in script or program marker. web3 expert also.

    €17 (Avg Bid)
    €17 Gebot i.D.
    1 Angebote
    BTC Recovery 6 Tage left
    VERIFIZIERT

    I need help with recovering my BTC transaction for which reciever says it never got it. I want someone who is expert in blockchain exploring and tracking and can make a track of where exactly the transaction is

    €93 (Avg Bid)
    €93 Gebot i.D.
    5 Angebote

    We are currently looking for newswriter able to research and write current news on topics related to Bitcoin, cryptocurrencies, projects in the sector and also opinion articles. We need to fill vacancies for publishers who submit multiple (5-10 weekly) short articles per week of around 400 words each (minimum), which will be paid at $ 4 per article. If your works are of quality you will have wor...

    €52 (Avg Bid)
    €52 Gebot i.D.
    9 Angebote
    Admin. & Sales executive. 5 Tage left
    VERIFIZIERT

    Need someone who is able to search online for needed information like email addresses and contact names. Also must be able to make phone calls when needed to get further information.

    €354 (Avg Bid)
    €354 Gebot i.D.
    36 Angebote
    Admin. & Sales executive 5 Tage left
    VERIFIZIERT

    Need someone who is able to search online for needed information like email addresses and contact names. Also must be able to make phone calls when needed to get further information.

    €136 (Avg Bid)
    €136 Gebot i.D.
    17 Angebote

    I need a person who will search for Bitcoin addresses with a balance, I need Bitcoin addresses with a minimum balance. I am waiting for your suggestions.

    €282 (Avg Bid)
    €282 Gebot i.D.
    14 Angebote
    blockchain core 5 Tage left

    Same core as [Zur Anzeige der URL Anmelden] but written by node.js Rules: Decentralised social network same as Instagram What we are expecting Blockchain core Api to integrate the web app : Create Wallet Create transaction Get balance Like interaction We will provide the details once we choose the winner

    €745 (Avg Bid)
    €745 Gebot i.D.
    10 Angebote

    I have small bitcoin payment gateway issue, it's most likely problem with callback code

    €26 (Avg Bid)
    €26 Gebot i.D.
    5 Angebote
    Admin. and sales assistant. 4 Tage left
    VERIFIZIERT

    Need someone who is able to search online for needed information like email addresses and contact names. Also must be able to make phone calls when needed to get further information.

    €360 (Avg Bid)
    €360 Gebot i.D.
    26 Angebote

    i have been scammed by a crypto investment scam. would like my money returned

    €1934 (Avg Bid)
    €1934 Gebot i.D.
    9 Angebote

    poder ser programado em C#,PYTHON OU JS NODE, A PREFERENCIA DO PROGRAMADOR Tem que usar a biblioteca ccxt << pois faciltia demais a criaçao do codigo >> Entendimento Existem muitas exchanges de cryptomoedas Exemplo eu tenho 50usd e 0.00220 bitcoins em 2 casas de cambio, ou outro par de criptomoeda tambem ( quero que os pares sejam configurados e as exchanges também usan...

    €1265 (Avg Bid)
    €1265 Gebot i.D.
    1 Angebote

    Create a mineable coin and develop a staking system where users mine coins and stake for the reward. I'm looking for someone who can create a coin easily.

    €390 (Avg Bid)
    €390 Gebot i.D.
    5 Angebote

    I need an experienced blockchain writer who fully undertands how defi works and looks like. Help me to work out with math equation to calculate the interest, profit, liquadtion and things. I will give some similar project, what you do is to make something kinda relevant, technical about another defi project. I will send you referrence list, up to 21 pages including images. Only bid if you are...

    €191 (Avg Bid)
    €191 Gebot i.D.
    14 Angebote

    I need an experienced blockchain writer who fully undertands how defi works and looks like. Help me to work out with math equation to calculate the interest, profit, liquadtion and things. I will give some similar project, what you do is to make something kinda relevant, technical about another defi project. I will send you referrence list, up to 21 pages including images. Only bid if you are...

    €183 (Avg Bid)
    €183 Gebot i.D.
    10 Angebote
    Bitcoin trading or arbitrage bot 2 Tage left
    VERIFIZIERT

    I want a bitcoin bot or arbitrage bot, with a good Back test and really make profit in real account. If you have real example I will do this project, with a good backtest

    €263 (Avg Bid)
    €263 Gebot i.D.
    4 Angebote

    Need someone to possibly find a bypass for rate limit through minecraft api system to then create a minecraft bot to turbo/claim/autoclaim a username before it releases beating every single person. WIll pay bitcoin

    €101 / hr (Avg Bid)
    €101 / hr Gebot i.D.
    3 Angebote

    As title states I'm in need of an developer that has worked with blockchain/crypto exchange projectes before. The project will be as following: We will use this php script from codecanyon (or another if you know a better one) Setup/Installation of website (CryptoExchanger) & database Testing & error/bugs fixing - This php website that I purchase (CryptoExchanger) might contain bugs...

    €601 (Avg Bid)
    €601 Gebot i.D.
    18 Angebote

    Need basic functions like account registration & login Web design (I will send you design mockup in .png or .jpeg format) Buy/Sell with btc rates etc. Reference website: [Zur Anzeige der URL Anmelden]

    €600 (Avg Bid)
    €600 Gebot i.D.
    28 Angebote

    We are looking for some developer to develop a bitcoin client, with the feature to send fake transactions to the blockchain. All we need is for the transaction to be shown in the [Zur Anzeige der URL Anmelden] , obviously we don't expect them to ever get confirmed! Required: - Amount field - Bitcoin address field. Can be a desktop (windows) based solution, or on web...with source code

    €212 (Avg Bid)
    €212 Gebot i.D.
    1 Angebote

    Looking for someone to develop my Online Poker Community Client For Poker Horse Network. Will be hosting Exclusive online championships and tournaments so the tournament lobby must be on point and allow anyone to register or unregistered from the poker tournament display time chip start size chips stack, ectect. If you know where i can find hosting for your client even better. Looking for the pe...

    €1964 (Avg Bid)
    €1964 Gebot i.D.
    12 Angebote

    We are looking for some developer to develop a bitcoin client, with the feature to send fake transactions to the blockchain. All we need is for the transaction to be shown in the [Zur Anzeige der URL Anmelden] , obviously we don't expect them to ever get confirmed! Required: - Amount field - Bitcoin address field. Can be a desktop (windows) based solution, or on web...with source code

    €17 - €142
    €17 - €142
    0 Angebote

    Need a python trading scrip for binance futures which uses binance API . Trading logic is simple: - One currency Pair - (External singnal def. long or shot) - Check actual price every period of time in X seconds - If price go up - place market order long (for signal long) - If price go down - place market order short (for signal short) - Check aktual placed market order (price) - 1. place Stop Mar...

    €155 (Avg Bid)
    €155 Gebot i.D.
    9 Angebote
    Ethereum Smart Contrast Needed 22 Stunden left
    VERIFIZIERT

    We are looking for a smart contract developer who will make a smart contract like Lions Share and Forsage. Serious-minded people only.

    €170 (Avg Bid)
    €170 Gebot i.D.
    1 Angebote

    Im looking for a programmer that can create a trading website like localbitcoins and paxful. [Zur Anzeige der URL Anmelden] [Zur Anzeige der URL Anmelden]

    €814 (Avg Bid)
    €814 Gebot i.D.
    12 Angebote
    A platform of crowdfunding 14 Stunden left
    VERIFIZIERT

    I m looking for a website of Crowdfunding like [Zur Anzeige der URL Anmelden] We will have admin panel and client panel. Many offers of products assets. Integration with credit card for Cliente of invest I prefer to use woocommerce I will only read a purpose with an example of website in this category, Sto or ico.

    €156 (Avg Bid)
    €156 Gebot i.D.
    9 Angebote

    Develop a system for backtesting a specific option trading strategy: writing covered calls. A detailed analysis of this trading strategy and how it relates to writing covered calls on the S&P500 index can be found at: [Zur Anzeige der URL Anmelden] However, the objective of this project which I am currently proposing is to employ an identical strategy but apply it to Bitcoin Spot and the w...

    €1618 (Avg Bid)
    €1618 Gebot i.D.
    5 Angebote

    Hi, I need a developer who has experience of working with payment integration. I want two integrations in our application Aquanow and Total Process. We use React.js, Node.js, [Zur Anzeige der URL Anmelden], and SQL in this project. Aquanow Staging Environment As far as execution via Aquanow goes API: documentation here: [Zur Anzeige der URL Anmelden] TP Integration Info [Zur Anzeige der URL A...

    €209 (Avg Bid)
    €209 Gebot i.D.
    3 Angebote
    Eth Token Development and Integration 12 Stunden left
    VERIFIZIERT

    I am looking for expert developed who can develop eth token and implement into my WP site

    €53 (Avg Bid)
    €53 Gebot i.D.
    3 Angebote

    BTC Core and S9 BTC Miner Hardware Integration to mine own transactions: I have my own BTC Core installed and used for receiving and sending payments successfully. Daily I am processing 500 different BTC transaction as sender. I have two new Antminer S9 BTC Miner Hardware (never used brand box packed) I want to use my own S9 BTC Miner Hardware to process my own BTC transactions. IS THIS POSSIBLE ?...

    €90 (Avg Bid)
    €90 Gebot i.D.
    3 Angebote

    I’m a reputable trader on [Zur Anzeige der URL Anmelden] and I’m looking for someone to create a trading bot for me using Localbitcoins API to automate my trades. Bot would be handling only one type of trade: Selling my BTC for other user’s XRP. On my account there would be also different trades for different payment methods so bot would have to ignore those and only handle the...

    €182 (Avg Bid)
    €182 Gebot i.D.
    5 Angebote

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