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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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    30 trabajados encontrados, precios en USD

    Hola! Tengo un proyecto bastante grande desarrollado en php y smarty framework! Este producto básicamente es un trader profesional de dominios, actualmente funciona con el dólar como moneda y escrow.com y PayPal como medio de pago. Necesito un desarrollador de blockchain para crear mi propio token y Wallet para que mis clientes puedan hacer el cambio del dólar en mi propio Ex...

    $697 (Avg Bid)
    $697 Oferta Promedio
    12 ofertas
    Creacion de sitio web 13 horas left
    VERIFICADO

    Deseo crear una pagina similar a [iniciar sesión para ver URL] con algunas de sus caracteristas

    $187 (Avg Bid)
    $187 Oferta Promedio
    15 ofertas
    Brand Marketing 6 días left

    I need some help with internet marketing. The person or persons must have a good communication skills and must know how to trade with Crypto currency.

    $920 (Avg Bid)
    $920 Oferta Promedio
    11 ofertas
    Build a Website 6 días left

    Project: Build a marketplace for buyers to purchase custom articles, and sellers to write for pay. Idea: - Buyers can view a list of sellers and their qualifications/profiles - Buyers can inquire each seller for a quote on their desired task - Buyers can pay with Paypal or Cryptocurrency - Funds are held in escrow - A chat utility between the buyer and the seller opens, in which they will discuss...

    $1350 (Avg Bid)
    $1350 Oferta Promedio
    55 ofertas
    need a blockchain developer 6 días left
    VERIFICADO

    Looking for a blockchain developer who had developed cryptocurrency wallets and integrated payment gateway to buy the altcoins and bitcoins. For reference - similar to zebpay, koinex or wazirx

    $4666 (Avg Bid)
    $4666 Oferta Promedio
    15 ofertas

    I need help creating a website to be used as platform for ICO of asset backed tokens on ERC20 platform. The website should link the buyer wallet and enable the ICO tokens to be distributed after receiving payment in ETH, USDT or BTC. Integration with BTC pay server might be an option. The page should collect customer data for invoices to be produced as a record of the sale. The platform should als...

    $670 (Avg Bid)
    $670 Oferta Promedio
    11 ofertas

    I want to create an up and down betting site using [iniciar sesión para ver URL] bitcoin real-time candle chart. There is a similar game that has already been made. I want to use this to upgrade. Existing games have many bugs. Anyway, I want to find a laravel developer who is experienced in blockchain and bitcoin wallet.

    $626 (Avg Bid)
    $626 Oferta Promedio
    26 ofertas
    Blockchain Developer Required -- 4 5 días left
    VERIFICADO

    We are looking for an expert blockchain developer to work on farming smart contract

    $409 (Avg Bid)
    $409 Oferta Promedio
    4 ofertas

    Need someone to do tutorial youtube video with bitcoin wallet

    $127 (Avg Bid)
    $127 Oferta Promedio
    14 ofertas

    Hello, i need something similar to Uniswap project but to run on Binance Smart Chain (BSC) and has features like yield farming, staking and token pool, analytics, lottery and exchange. Kindly contact me only if you have experience in this field and Solidity and can do the perfect job.

    $2605 (Avg Bid)
    $2605 Oferta Promedio
    18 ofertas
    Blockchain Developer Required -- 3 5 días left
    VERIFICADO

    We are looking for an expert blockchain developer to work on farming smart contract

    $1292 (Avg Bid)
    $1292 Oferta Promedio
    6 ofertas
    Blockchain Developer Required 4 días left
    VERIFICADO

    We are looking for an expert blockchain developer to work on farming smart contract

    $1163 (Avg Bid)
    $1163 Oferta Promedio
    11 ofertas
    Blockchain Developer needed -- 2 4 días left
    VERIFICADO

    We are looking for an expert blockchain developer to work on farming smart contract

    $150 (Avg Bid)
    $150 Oferta Promedio
    2 ofertas

    I want a yield farming website like [iniciar sesión para ver URL] Should be able to farm our token with connectivity to wallets like metamask and others and also connectivity to uniswap etc. Should also have DAO like vote page of the website along with farm and trade

    $1325 (Avg Bid)
    $1325 Oferta Promedio
    26 ofertas

    Подготовка дизайна, бизнес-процессов, технологий по договоренности

    $6 / hr (Avg Bid)
    $6 / hr Oferta Promedio
    5 ofertas

    In 2014 we, with the help of a few others launched one of the first altcoins ever created (seriously), unfortunately due to issues with exchanges at the time our team lost all our holdings of the coin and the project couldn't afford to move forward (remember bitcoin was cheap back then!) We've spent the last year coding new features that bring a new layer to our coin that we feel could...

    $17 / hr (Avg Bid)
    $17 / hr Oferta Promedio
    11 ofertas
    Blockchain Developer needed 3 días left
    VERIFICADO

    We are looking for an expert blockchain developer to work on farming smart contract

    $152 (Avg Bid)
    $152 Oferta Promedio
    5 ofertas

    Looking for someone to take this github code that identifies triangular arbitrage opportunites on binance and turn it into a program that auto executes profitable trades with the api keys. This means you have to work with trading fees and time constraints to get this work. The program will need to have setting to alow tge tweeking of various variables to make it profitable. Please share your comme...

    $198 (Avg Bid)
    $198 Oferta Promedio
    11 ofertas

    Requirement is this Build only front end web application. Really simple And plus one market for several users on there. So Milestone React : 400 If you are really good at English - preferable. If you are exp with btc -- perferable Below there is requirement Thanks

    $1008 (Avg Bid)
    $1008 Oferta Promedio
    14 ofertas

    This project is to get the best forex trader for my company

    $22 / hr (Avg Bid)
    $22 / hr Oferta Promedio
    13 ofertas

    Looking for an experienced (3 years+ building) Solidity developer in a TECHNICAL ADVISOR role for our web-responsive fantasy sports-style movies mobile game CinemaDraft ([iniciar sesión para ver URL]). We're building an independent dApp smart contract in-game crypto token, CD3D ([iniciar sesión para ver URL]), based off the popular P3D ETH smart contract token ([iniciar sesi&oac...

    $771 (Avg Bid)
    $771 Oferta Promedio
    5 ofertas

    Please reply only if you have done this work in past. Start your message by saying BSCRocks Only then I will reply you.

    $451 (Avg Bid)
    $451 Oferta Promedio
    4 ofertas

    I need someone experienced who can develop a smart contract for us. the smart contract would be audited and should be bug free, I'll give you a set of checklist to which have to be followed. you must have a decent experience in this. you basically have to make token via a ERC20 smart contract. also it would be a bit of long term work too like you have to manage and create more than 1 smart c...

    $169 (Avg Bid)
    $169 Oferta Promedio
    7 ofertas
    Article composed 1 día left

    Good afternoon to everybody reading this, I am looking for people with genuine, in-depth experience in the blockchain, crypto sphere to put together for me a research paper. (ONLY PEOPLE WITH KNOWLEDGE IN THE FIELD) I need a 20 to 30,000 words paper (essay) on the trading of cryptocurrencies. The essay must contain DETAILED explanations on a number of subjects. $$$$$$$$$$$$$$$ : I DO NOT WANT...

    $219 (Avg Bid)
    $219 Oferta Promedio
    23 ofertas
    Decentralized Crypto wallet 22 horas left
    VERIFICADO

    Please see examples below : [iniciar sesión para ver URL] [iniciar sesión para ver URL] Wallet also to support except of our ICO, the following coins : 1. Bitcoin 2. Ethereum 3. Bitcoin Cash 4. Ripple 5. Litecoin 6. Monero 7. Dash 8. EOS 9. NEO 10. Tether 11. Cardano 12. Tron 13. Stellar 14. Tezos 15. Algorand 16. Zcash 17. Ethereum Classic 18. OMG Network 19....

    $2799 (Avg Bid)
    $2799 Oferta Promedio
    26 ofertas

    We are looking for a blockchain/cryptocurrency developper and server administrator. We need help to setup the seeds nodes server of a new cryptocurrency / blockchain. Simple task; server already setup, just need configuration.

    $215 (Avg Bid)
    $215 Oferta Promedio
    12 ofertas

    Looking for someone to take this github code that identifies triangular arbitrage oppurtunites on binance and turn it into a program that auto executes profitable trades with the api keys. This means you have to work with trading fees and time constraints to get this work. The program will need to have setting to alow tge tweeking of various variables to make it profitable. Please share your comme...

    $175 (Avg Bid)
    $175 Oferta Promedio
    6 ofertas

    I need to change PIVX/similar source code to make duplicate transactions - wallet should allow to send same transaction many time, so receiving address gets same transaction multiple times, but it doesn't change its balance. For example: From adress "A" I am sending 5 coins to adress "B" (normal, accepted transaction) and after that trasaction is confirmed I am able to re...

    $327 (Avg Bid)
    $327 Oferta Promedio
    5 ofertas
    Crypto and website developer. 5 horas left
    VERIFICADO

    Bitcoin Ethereum XRP Bitcoin Cash Chainlink Litecoin XLM These are the blockchains-cryptocurrencies you have to be able to work with. I am looking for developers who can build me a cryptocurrency investment website. Other than being able to implement above cryptocurrencies into the website you must be capable of building a fully secured website and coding custom scripts depending on our r...

    $37 / hr (Avg Bid)
    $37 / hr Oferta Promedio
    60 ofertas
    Build a Website 4 horas left
    VERIFICADO

    Look this website carefully - [iniciar sesión para ver URL] I just want exactly same features and functionality that in the website. Design will be different but the functionality would be as it is. Look into this website and tell me how many days need to complete it. And show work same as the website deals Here is the login details: User name :chatterjeearindam Pass : 76wvEZ626xA5@Fs C...

    $394 (Avg Bid)
    $394 Oferta Promedio
    22 ofertas

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