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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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    32 jobs found, pricing in USD
    Cryptocurrency Exchange 6 days left
    VERIFIED

    Looking someone who can customize the cryptocurrency exchange OPEN-SOURCE [login to view URL] ! 1. Customize Front END and make same as binance but different color and some tweak. 2. Customize BackEND and make all coin and token listing easy. 3. Liquidity Management - connect the exchange to any Liquidity Provider. This need to be Plug-&-Play can be Turned On / Off anytime with admin panel. 4...

    $641 (Avg Bid)
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    6 bids

    I need a software to automate trades on an Australian crypto exchange BTCMarkets. Trades will be based on technical analysis. More details once pricing is sorted

    $382 (Avg Bid)
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    9 bids

    I need someone that can develop a straight forward cryptocurrency scanning auto strategy that will work exclusively with a CoinBase Pro Exchange API and Bittrex Exchange API. Also, highly secured.

    $944 (Avg Bid)
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    10 bids

    Need a decentralised exchange on TRON network working fully on smart contract supporting TRC 10 and TRC 20 tokens. An admin panel to add currency pairs Admin pannel regulate trading fees When user place a buy or sell amount and if the order is satisfied user receive a TRC 20 dex token He can freeze the token to get dividends in the website or transfer into his own wallet Admin panel regulat...

    $828 (Avg Bid)
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    7 bids
    Tbcexchange 5 days left

    My website is all about trading and TBC exchange to Bitcoin

    $518 (Avg Bid)
    $518 Avg Bid
    7 bids

    looking for a block chain developer to build me an 8 altcoinexchange to BTC and eth using coinbase pro-APAPIk..... I need you to make a user login that creates 8 altcoin address and BTC and eth addresses from coinbase pro..... the user needs feature mixed in the current site at a mining pool. online to convert altcoins to BTC and eth Wallets for 8 coins will be in server with the website as I have...

    $1288 (Avg Bid)
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    5 bids

    I am looking for a blockchain expert who has got 3 years of experience in this area I will tell you more details over chat Thanks

    $742 (Avg Bid)
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    16 bids

    CLOUD TOKEN WALLET VALIDATED - VERIFIED - APPROVED by World Blockchain Forum All info will be found here: [login to view URL] We are looking for candidates with a real connection to the crypto community both online and offline. Ability to share our vision with its audience will be considered an advantage. Also, to have telegram or WhatsApp active channel, or any social network page. Knowledg...

    $11 / hr (Avg Bid)
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    8 bids

    ๏קรςz)))(()| well it goes like this im using a sophisticated system to operate my life with [login to view URL][login to view URL][login to view URL]ResearchDevelopment ๏קรςz)))(()| so i need someone who knows the coding and formula to do this correctly and I WILL KNOW i see the prototype for the MD6 comes in 3 strengths 128 256 and 512 ๏קรςz)))(()| ...

    $1514 (Avg Bid)
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    21 bids
    Smart contract on Blockchain 4 days left
    VERIFIED

    Hello I am looking for developer that will help to create smart contract that will be sending some amount of tokens by specific amount of cryptocurrency. Please, send me information in which blockchain do you have experience. It would be nice to hear something about you past projects with blockchain technology.

    $13 / hr (Avg Bid)
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    27 bids

    We need to fix the wallet:transactions:send is limited $1.00/day per user limit, but cannot get in touch with coinbase support so looking for someone that knows this error and can let us know what the issue is and how to remove this. Here is a screenshot: [login to view URL] We have created oauth2 applications on multiple accounts all giving the same results of the $1.00/day per user limit. Pl...

    $51 / hr (Avg Bid)
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    16 bids

    Build Bitcoin Wallet website In php

    $7197 (Avg Bid)
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    70 bids

    Hi! I need people who can track bitcoin transactions and so on...!

    $231 (Avg Bid)
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    10 bids

    Dear All, I want to add API to our website to accept cryptocurrency via [login to view URL] Simple page required to call api and get response, no database required. Should be in PHP and should be very simple Please if you do not have any experience with blockchain do not bid. Please if you did not do project like this do not bid. Please do not bid over our budget, if you do not like our budget do ...

    $145 (Avg Bid)
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    11 bids
    Blockchain Fork Particl.io 2 days left
    VERIFIED

    Looking for someone who can fork and build a chain with Particl.io. Need to implement full chain and custom code as well premine, explorer building. [login to view URL]

    $352 (Avg Bid)
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    4 bids
    Wallet for cryptocurrenct 2 days left
    VERIFIED

    wallet for cryptocurrency like bitcoin, bitcoin cash, etc transaction charge/ commission deduction as profit. quick internal transfers (instant)

    $702 (Avg Bid)
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    5 bids
    Blockchain on WordPress 2 days left
    VERIFIED

    Hi, I am looking for someone who can help me with blockchain storage of documents with timestamp through WordPress and Gravity forms.

    $159 (Avg Bid)
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    13 bids

    Hello, We are a team at the Moskow. We need your support for a long time. Who can answer to this bitcoin problem that appear when broadcast hex? Problem: "An error occured: Missing inputs. Code:-25" Here is the code snippet for getting the hex. ...... [login to view URL]("c0fb6a0a31fd60c952afda1184a5e309a9337f843b624a0744f02abe447bbc55", 0); [login to view URL]("ms54WXKVw...

    $933 (Avg Bid)
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    7 bids

    Hey! I have a ERC20 token and need to list our ICO on some exchanges for fundraising . In your bid please provide examples of how it could look from your previous jobs with ICO projects . I will only hire you if you have experience with ICO or IEOs. payment based only on success after token listed and ICO / IEOs got officially listed . we add a performance bonus that will be calculated by : 10%...

    $476 (Avg Bid)
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    9 bids

    I need JSON RPC Web Api for Send and Receive Ethereum .Net

    $241 (Avg Bid)
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    4 bids

    Hello, we are a team working on the crytocurrency site. We need a bitcoin & nodejs expert urgently. You should support or handle the main difficult part in our project. How can we choose you right now? Please send us the correct answer for the below test. Here is a simple bitcoin problem: namely, the bitcoin transaction code snippet. 1- Question: The below code is wrong or right? 2-Question: ...

    $1220 (Avg Bid)
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    26 bids

    Build Ico website In eth, btc payments

    $2652 (Avg Bid)
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    77 bids
    blockchain 21 hours left

    I am looking for a blockchain and python expert. best regards. NO ASIAN!!!

    $3882 (Avg Bid)
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    17 bids

    I need easy script page with bitcoin payment. - Selection of product - Mail form of client - Buy button ---> details for payment idwallet ( idwallets set by me, more address) -Page feedback PM me for example page. Tor network project

    $177 (Avg Bid)
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    15 bids
    Looking for partner 13 hours left

    Hello, I'm looking for someone for my project to help me start a smaller monthly income using cryptocurrencies

    $37 (Avg Bid)
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    6 bids

    We are working with the City of London and Renewable energy resource providers in the UK to create a cost efficient Bitcoin Mining Farm. We are looking for experts in the Bitcoin industry who have expertise at setting up and running a Bitcoin Mining Farm. We are looking for about 4 experts to be part of the panel who advice our company The Bitcoin Mining Company Limited based in London England...

    $35 / hr (Avg Bid)
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    13 bids

    Functionalities include: User creating a Wallet, generate Keys, Save Keys, etc, Mining Process,

    $1321 (Avg Bid)
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    24 bids
    USDT Omni HD Wallet Ending left
    VERIFIED

    1. Generate many usdt address for deposits in a simple web application 2. All usdt are consolidated in one main address for transfer to other usdt address 3. Verify deposits completion for the many usdt addresses

    $1170 (Avg Bid)
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    11 bids

    I am looking for engineer who can work with our team to develop the Bitcoin website... Must be good at Blockchain and website and DB.... Also, have got a good knowledge of AWS.

    $750 - $1500
    Sealed
    $750 - $1500
    47 bids

    Olá, me chamo Stanley! Atualmente possuo alguns códigos em python pré prontos sobre arbitragem Triangular, Posicionada e Entre Exchanges de Criptomoeda. Do que preciso? Alguns dos códigos estão incompletos faltando atualizações, implementações para funcionar 100% automático. O trabalho do DEV será analisar todos os c&oa...

    $2345 (Avg Bid)
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    7 bids

    Bonjour, Je gère un site Woocommerce et je cherche à me passer des gateways traditionelles. Le problème : mes clients voudront toujours payer avec des monnaies normales (FIAT) comme le dollar ou l'euro. L'idée serait donc de mettre en place un système où : - Le client paye en FIAT (a un broker tiers) - L'argent est converti en crypto p...

    $492 (Avg Bid)
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    12 bids

    Plataforma en donde funcione una casa de intercambio de criptomonedas, iniciando con Bitcoin, Ethereum y Dash y luego ir incorporando mas criptos. Desarrollo en python, manejo de API. Esta plataforma iniciara operando en Colombia, luego se ira expandiendo a toda América Latina

    $834 (Avg Bid)
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    13 bids

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