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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 找到的工作,价格在 HKD

    need red packet services weixin

    $4435 (Avg Bid)
    $4435 平均报价
    10 竞标

    Hi, So I've installed a Bitcoin game on my webserver called Bustabit. It requires 3 parts to work correctly. The bustabit-webserver, bustabit-gameserver, and bustabit-depositor. We have got the gameserver, and webserver working, but are having problems connecting the bustabit-depositor so that users can depsoit and withdrawl Bitcoin from the game. We need someone to help us configure the bust...

    $1732 (Avg Bid)
    $1732 平均报价
    8 竞标

    hello,i want to build a sentiment forex trading website but before i can start to say mlore...kindly send your offers to help IF ONLY....you have a past demo of your work or current exchange yu have build wich is forex so i can see

    $113469 (Avg Bid)
    $113469 平均报价
    15 竞标
    NodeJS Developer 6 日 left
    已验证

    I'm looking for NodeJS developer who is familiar with Bitcoin p2p communication. Details: NOMP (Node Open Mining Portal) has built in module to receive blocks while acting like normal peer/node. However, the module has not been updated in years, so it can no longer successfully make handshake between NOMP "fake" node and real coin node. I suspect this happens because of no PING/PO...

    $1505 (Avg Bid)
    $1505 平均报价
    9 竞标

    Greetings! we are seeking an experienced blockchain developer. Now we are on progress to make realistic 3d game and we need to integrate blockchain for its infrastructure. Do not hesitate to apply. Hope to hear from you soon.

    $64218 (Avg Bid)
    $64218 平均报价
    33 竞标

    I need highly talented developers for my blockchain project. further details will be disclosed after the NDA contract.

    $421253 (Avg Bid)
    $421253 平均报价
    34 竞标

    A telegram bot, written in Php. Default payment wallet for investors to deposit it [login to view URL] api. I want it changed to myelin gear at gear.mycelium.com.

    $744 (Avg Bid)
    $744 平均报价
    5 竞标
    Bustabit/Ethercrash Replica 6 日 left
    已验证

    I have a private bustabit source similar to [login to view URL] Looking for a developer to turn it into a website that runs on dogecoin and not bitcoin. Would be great if we can talk over discord/skype

    $6498 (Avg Bid)
    $6498 平均报价
    21 竞标

    I need a custom Bustabit betting script created with a very simple strategy.

    $922 (Avg Bid)
    $922 平均报价
    13 竞标
    Cryptocurrency Exchange Offer 5 日 left
    已验证

    I'm looking a team to work on the cryptocurrency decentralize exchange which is already developed. Its almost listed on coinmarketcap! We need to collect some fund for exchange then we can run smoothly! If you have an interest in running own business private me.

    $22482 (Avg Bid)
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    23 竞标

    Seeking a professional Mathematik Blockchain programmer that can create a HFT Algorithm Bot to trade in CryptoCurrency markets on all exchanges. The BOT I wish to have established is to minipulate CryptoCurrency Held in different exchanges. Ex: putting buy or sell orders in within milliseconds and re taking them for a profit before avaerage traders get the chance. This procedure can be performed o...

    $313 / hr (Avg Bid)
    $313 / hr 平均报价
    22 竞标

    I have a private blockchain, forked from Ethereum, with our own tokens, smart contracts, wallets etc. Now I would like to launch our own exchange, including our own tokens, as well as traditional cryptoassets (btc, eth, ltc, etc) with different currency pairs. I'm looking for an expert in RubyKube to help us build and deploy a crypto exchange based on RubyKube / Peatio on AWS.

    $172 / hr (Avg Bid)
    $172 / hr 平均报价
    17 竞标

    Need a blockchain and ICO content writer that is qualified in some famous forums and social networking site As I have mentioned, proof of work before is a must, people with experienced profile and other social links needed Inbox me when you BID, I will remove those who bid but never inbox.

    $2570 (Avg Bid)
    $2570 平均报价
    6 竞标

    i m receiving signals by email and i need to build a bot that is extremely fast and bids over highest wall on the orderbook through api on bitfinex crypto exchange bot. pls only bid if you are experienced on the matter.. ex i receive signal, largest wall has 20000 coins selling for 1,01$, it will bid a fixed amount at 1,02$ to get filled, if he changes to 1,03 then bot should put 1,04$ etc.

    $6418 (Avg Bid)
    $6418 平均报价
    18 竞标

    Tenho um portal de produtos digitais, preciso integrar pagamento via bitcoin nele, ele ja possui pagamentos via Paypal e outros. Maiores informações serão passadas especificamente ma reunião.

    $3236 (Avg Bid)
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    6 竞标

    Hello. I need some crypto related freelancer who can just rewrite around 300 words news and I need daily 10 article. All will be unique and spam free. I will be able to pay $1 for each article so each day $10. After 1 month payment will be increased as we are also new here. The applicant who are interested please feel free to apply. Regards

    $541 (Avg Bid)
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    22 竞标

    Buenos días, Necesito un Programador para un proyecto de Multinivel (MLM, Matrix Forzada,) Para más detalles por favor póngase en contacto conmigo 1- Un proyecto de Donaciones, donde incluiremos Herramientas de Marketing, como servicios para los usuarios 2- Configurar métodos de pagos para la activación automática de cuentas después de completar el...

    $5728 (Avg Bid)
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    13 竞标

    Cryptocurrency project in need of a swap mechanism for a 1:1 swap from the old chain to the new one. coin ready. Need someone who is knowledgeable and can support project long term. Must have knowledge of the use of Github available open source in wallet swap mechanism in new wallet.

    $4733 (Avg Bid)
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    35 竞标

    I have an existing Coinbase Pro script that I would like to integrate with the TradingView API. I would like my Coinbase Pro script to only execute when during certain times of volatility and general buy/hold/sell conditions are present. The execution would be simple. The Coinbase API would check the TradingView API for certain market conditions and only execute the trade under certain conditio...

    $2124 (Avg Bid)
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    13 竞标

    I need a bash/shell script to cross compile the Windows Binaries for Krugercoin 0.9.3 on a standard Vultr or DigitalOcean Ubuntu 14.04 x64 server. The source code is found at; - [login to view URL] The Bitcoin Talk Forum; - [login to view URL] Additional resources; Building headless Bitcoin and Bitcoin-qt on Windows - [login to view URL] EasyWinBuilder v0.7 for Bitcoin Core - [login to ...

    $1567 (Avg Bid)
    $1567 平均报价
    1 竞标
    fork dash coin and (rename) 2 日 left
    已验证

    I am looking blockchain developer! I'm new in this sector but, I want to make my own coin (POS) need someone who can frok dash coin and complete the project. Comment below what we need to make same as a dash pos system! step by step that way I can increase fund! you can make price each section and submit I'll review carefully!!

    $12781 (Avg Bid)
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    40 竞标

    Dear Freelancers. I have created my cryptocurrency based on Dash And I want to upgrade it as follows - Upgrade from PoW to PoW/PoS - Implement SegWit, Replay Protection, Unique Address Format, Zero Knowledge Proof, Lightning Network feature. Please bid if you are experienced altcoin developer. If you can do this job and understand my requirement 100% please start your proposal with Five dots. Plea...

    $3080 (Avg Bid)
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    8 竞标

    Je recherche dans le cadre de mon entreprise un avocat capable de me fournir des solutions juridiques pour créer des ICO tout en optimisant la structure. Je suis diplomé en droit mais je recherche quelqu'un avec de l’expérience minimum 5 ans. Nous pouvons discuter des détails plus tard. Pas de réponse automatique

    $407 / hr (Avg Bid)
    $407 / hr 平均报价
    5 竞标

    I want that people can just open the app and advertisement will be showed. The user get paied in Bitcoins to the wallet he wants. If the user invite friends, he will earn a percantage of the earnings of his friend.

    $47 / hr (Avg Bid)
    $47 / hr 平均报价
    14 竞标

    Dear Freelancers. I have created my cryptocurrency based on Dash And I want to upgrade it as follows - Upgrade from PoW to PoW/PoS - Implement SegWit, Replay Protection, Unique Address Format, Zero Knowledge Proof, Lightning Network feature. Please bid if you are experienced altcoin developer. If you can do this job and understand my requirement 100% please start your proposal with Five dots. Plea...

    $6023 (Avg Bid)
    $6023 平均报价
    18 竞标

    I am going to buy crypto currency with credit card. and after purchased currency, need to transfer to other wallet. I will share more details to right candidate. You have to be experience with bitcoin wallet.

    $7468 (Avg Bid)
    $7468 平均报价
    54 竞标
    bitcoin website 1 日 left
    已验证

    i need site where user can buy bitcoin ( only for BITCOIN EXPERT) every user must have his personal page registration form must include name surname email in personal page i need to see with balance and all personal infos and must be a section for complete payment

    $6277 (Avg Bid)
    $6277 平均报价
    21 竞标

    Need assistance making simple updates to Coinbase script code in Node.js. Should be relatively simple and not exceed a few hours. Must have experience in Node and familiar with Coinbase Pro/ GDAX API

    $439 (Avg Bid)
    $439 平均报价
    3 竞标

    Our web wallet project is dashboard are user, where user can do: 1). Login 2). Registration 3). buy coin (send) to admin and link to API Blockchain, Our Block Explorer and Windows wallet 4). Buy coin (send) between users 5). Receive coin (receive) between users 6). Network (soon) contains: Staking and Lending 7). The availability of Supply Coin and Sales 8). The existence of a live coin price rat...

    $21581 (Avg Bid)
    $21581 平均报价
    66 竞标

    I need help creating a charting website that would pull bid and ask data every 30 seconds or so from 5 major exchanges(bitfinex, binance, okex, huobi and hitBTC) via APIs (REST or Websocket) store the values in a local database and display the sum total of bids and asks sizes within 1% and/or 0.5% of the current price on different time frames (just like on the picture provided), so the “Orde...

    $2570 (Avg Bid)
    $2570 平均报价
    5 竞标

    I need help creating a charting website that would pull bid and ask data every 30 seconds or so from 5 major exchanges(bitfinex, binance, okex, huobi and hitBTC) via APIs (REST or Websocket) store the values in a local database and display the sum total of bids and asks sizes within 1% and/or 0.5% of the current price on different time frames (just like on the picture provided), so the “Orde...

    $3095 (Avg Bid)
    $3095 平均报价
    11 竞标

    Please look at the attached document and contact us to discuss the work! I want a crypto exchange on please let me know if anyone have ready script to use, to look at it…Demo please!! 5 market parings Coins and Tokens 25-30 on my exchange Connecting the API from foreign Exchanges such as: Binance / [login to view URL] GDAX/ [login to view URL] /Poloniex/ Bittrex, and many more to increa...

    $7836 - $15673
    加封
    $7836 - $15673
    54 竞标

    Looking for a sharp blockchain developer to build a simple MVP for our project. we are early stage and dont have a lot of funding so we are looking at building the MVP to use to raise the funding for the rest of the project. Website, whitepaper and one pager is complete. we are at the final stages to raise seed funding for the project. Once seed funding is secure full scale development will begin....

    $6473 (Avg Bid)
    $6473 平均报价
    28 竞标
    Blockchain Customization 3 小时 left
    已验证

    I need someone to customize my blockchain to achieve the idea I have. Should be blockchain expert. Write "I am a blockchain developer" on top of your proposal to avoid getting removed from the bid. Thanks and enjoy your bid.

    $4623 (Avg Bid)
    $4623 平均报价
    18 竞标

    I already have the wallets that need few logo modifications. I just need the coin ready and functional on servers with premine. Serious bidders only. Will pay only upon completion. Thank you.

    $5086 (Avg Bid)
    $5086 平均报价
    16 竞标
    Build A CryptoCurrency Exchange 20 日 left
    已验证

    we want to build a cryptocurrency exchange not token exchange not ICO website crypto exchange BTC BCH ETH LTC XRP NEO USDT also, we want to add two fiats for trading all coins should be able to trade with each other as a pair and for fiat as well *** you can download requirements document and read that in depth and word by word *** if you want to have a chance to choose as this project freelanc...

    $47018 - $62690
    加精 加封
    $47018 - $62690
    102 竞标

    I need a Crypto expert for my current projects. If you have knowledge please bid. Details will be shared in message with the freelancers.

    $774 (Avg Bid)
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    27 竞标

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