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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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    45 робіт знайдено, ціни вказані в USD

    i need someone how create me a ico site incl all functions

    $1438 (Avg Bid)
    $1438 Сер. заявка
    2 заявки
    Add Cryptocurrency payment to website 6 дні(-в) left
    ПІДТВЕРДЖЕНО

    Add Cryptocurrency payment ready casino website.

    $336 (Avg Bid)
    $336 Сер. заявка
    13 заявки
    Cryptocurrency gateway testing 6 дні(-в) left
    ПІДТВЕРДЖЕНО

    Send any cryptocurrency to my wallet and get instant return money. I made this crytocurrency wallet and want to test it.

    $179 - $537
    $179 - $537
    0 заявки
    Ethereum Developer Needed 6 дні(-в) left
    ПІДТВЕРДЖЕНО

    I have a a small job to install an Ethereum Daemon and connect via json RPC.

    $46 (Avg Bid)
    $46 Сер. заявка
    3 заявки
    NEED WEB DEVELOPER THAT CAN TEST SMART CONTRACT ERC20 6 дні(-в) left
    ПІДТВЕРДЖЕНО

    We need ICO developer to test and check to see if smart contract, burn token, token distributed, is working properly what other functionality is needed, so it can launch. Need to check to see if Token can be distributed correctly and going to admin wallet and to client wallet. If the system able to burn token and all the feature is working correctly. I need to know if the signin and register i...

    $480 (Avg Bid)
    $480 Сер. заявка
    10 заявки

    If you have the needed amou . just let me know to discouss for more !

    $50 (Avg Bid)
    Гарантований Прихований
    $50
    3 робіт
    Looking for ICO advisors for my ICO project 6 дні(-в) left
    ПІДТВЕРДЖЕНО

    I am looking to add ICO advisors for my ICO project Candidate must have blockchain/software or ICO background Please put your remuneration expectation and the services which you can provide.

    $1432 (Avg Bid)
    $1432 Сер. заявка
    28 заявки
    Install bitcoind 6 дні(-в) left
    ПІДТВЕРДЖЕНО

    I need to install and set up bitcoind on a server. You need to be knowledgeable about bitcoind and core .

    $165 (Avg Bid)
    $165 Сер. заявка
    17 заявки

    I need somebody to help our c++ coder to get GDB debugger working on Vscode so he can debug cryptocurrency code. Support is to be done remotelly and via chat.

    $10 / hr (Avg Bid)
    $10 / hr Сер. заявка
    6 заявки
    lco listing script 5 дні(-в) left
    ПІДТВЕРДЖЕНО

    we are looking ico listing script... anybody having a demo then only create bid

    $327 (Avg Bid)
    $327 Сер. заявка
    2 заявки
    CryptoCurrency trading platform 5 дні(-в) left
    ПІДТВЕРДЖЕНО

    Hello I am looking for Cryptocurrency trade platform. I will appreciate any readymade system. Please bid, if you are experienced on it and got demo. i am looking for something like binance or yobit or cobinhood Do not bid more than of my budget or do not bid, if your price is more than of my budget. No time waster [увійдіть, щоб побачити URL] WITH DEMO ACCESS

    $6763 (Avg Bid)
    $6763 Сер. заявка
    22 заявки
    Create Node.js Wallet for old sCrypt Altcoin 5 дні(-в) left
    ПІДТВЕРДЖЕНО

    Looking for someone who can build a Node.js wallet for this altcoin (it's based of litecoin scrypt source): [увійдіть, щоб побачити URL] Please provide a timeframe + cost. Please provide a screenshot of wallet running to verify you are serious about working together on this.

    $880 (Avg Bid)
    $880 Сер. заявка
    11 заявки
    Create a ShapeShift.io Clone for me 5 дні(-в) left
    ПІДТВЕРДЖЕНО

    I need a website like [увійдіть, щоб побачити URL] in which you can swap cryptocurrencies such as Bitcoin and Ethereum and Ethereum tokens in a few clicks without having to log-in. It cannot use any third-party APIs such as the ShapeShift API. And must run fast on slow processors.

    $5162 (Avg Bid)
    $5162 Сер. заявка
    42 заявки
    bitcoin, etherium, hyip 5 дні(-в) left

    need to build bitcoin, etherium, hyip

    $2789 (Avg Bid)
    $2789 Сер. заявка
    25 заявки
    CoinBase experienced web developer 4 дні(-в) left
    ПІДТВЕРДЖЕНО

    Hi there. I am going to add the buy/sell function into my wallet. And I am going to use coinbase as the 3rd party api. If you have coinbase account, It is prefer. Only bid you have coinbase account to test the buy/sell function and have rich experience in coinbase related to buy/sell functions. I will require only simple functions and only backend working.. Thanks.

    $250 (Avg Bid)
    $250 Сер. заявка
    12 заявки
    Setup Mining Server For sCrypt Altcoin 3 дні(-в) left
    ПІДТВЕРДЖЕНО

    Looking for someone to setup a small mining server for a sCrypt altcoin listed here: [увійдіть, щоб побачити URL] Difficulty = 434.693 Recommend a server / provider that can also be used for the server. Must have previously worked with mining sCrypt coins before.

    $185 (Avg Bid)
    $185 Сер. заявка
    5 заявки
    Crypto-Investment Telegram Bot 3 дні(-в) left
    ПІДТВЕРДЖЕНО

    I want a good freelancer who can create a classy crypto investment telegram bot that accepts: bitcoin, ethereum, litecoin and bitcoincash The telegram bot will work like [увійдіть, щоб побачити URL] bot. For bitcoin investment: [увійдіть, щоб побачити URL] For Ethereum investment [увійдіть, щоб побачити URL] If you are not conversant in creating telegram not for investment site that will requir...

    $707 (Avg Bid)
    $707 Сер. заявка
    10 заявки
    Blockchain 3.0 Developeer 3 дні(-в) left
    ПІДТВЕРДЖЕНО

    Must have experience with development of new cryptocurrencies.

    $811 (Avg Bid)
    $811 Сер. заявка
    24 заявки
    Crypto Currency Daemons installation and rpc connect 3 дні(-в) left
    ПІДТВЕРДЖЕНО

    Only the developer who have successfully installed these below daemons and connected them with PHP code. Please check the list below. BTC Ether LTC Bitcoin Cash Ripple Omisego Ox protocol Golem Tron Stellar Neo Nano Aion Eos Zilliqa

    $173 (Avg Bid)
    $173 Сер. заявка
    5 заявки

    We're a online start-up. We have several online platforms established since 2015. We are looking to expand and market into other region of the world. The marketplace platform we are looking for needs to be developed with lightweight and security as main key. LEMP stack is preferred. With that said, we need to be able to drop the files and database onto a server. With a few stack configur...

    $1354 (Avg Bid)
    $1354 Сер. заявка
    23 заявки
    Transaction Details from BTC and ETH wallet through API's 3 дні(-в) left
    ПІДТВЕРДЖЕНО

    Hello Freelancers , I need to get transaction details of my BTC and ETH wallet addresses . The information's which i requires such * ) IN or OUT Transactions *) From Address of the Transactions *) Amount of ETH / BTC transferred to my account *) Number of from transactions from single address If you complete this project within couple of hours - you will have assurance you will be a...

    $794 (Avg Bid)
    $794 Сер. заявка
    7 заявки

    Hi Everyone. i'm agency of the crypto ecommerce management company located in Liverpool. our company now looking for some talented developer who support blockchain technology for 3+ months. you must know very well about the HD wallet management. feel free to contact us. cheers

    $2805 (Avg Bid)
    $2805 Сер. заявка
    40 заявки

    hello we need free lancer to work in our company to be online in our company chat and facebook page he must be online 10 hours daily to send and received the money from our customers and make the exchange from bitcoin to eth and also from eth to bitcoin for salary 1300$

    $592 (Avg Bid)
    $592 Сер. заявка
    16 заявки

    We need a ready crypto exchange script with documentation for setup and use. Also we need some slight modification for it for our business. The script should be ready and not first to be developed. We also need a logo and landing page. We have a budget of 3000 Euro.

    $2819 (Avg Bid)
    $2819 Сер. заявка
    40 заявки
    Construction crypto coin ICO 2 дні(-в) left
    ПІДТВЕРДЖЕНО

    Construction crypto coin ICO I need an experienced professional

    $1010 (Avg Bid)
    $1010 Сер. заявка
    35 заявки
    Crypto Currency Daemons installation and PHP Connectivity 2 дні(-в) left
    ПІДТВЕРДЖЕНО

    Only the developer who have successfully installed these below daemons and connected them with PHP code. Please check the list below. BTC Ether LTC Bitcoin Cash Ripple Omisego Ox protocol Golem Tron Stellar Neo Nano Aion Eos Zilliqa

    $583 (Avg Bid)
    $583 Сер. заявка
    6 заявки

    I want to do the simplest ICO ever. I want to take an asset (say a painting of mine, or my house, or my car), and pledge it to a digital coin offering. Whoever owns this coin owns the asset (and all distributions from the asset - say the painting sells at auction for $1mm dollars - then all holders of coins would get a distribution of cash). So I need someone to: Launch the coin on an exchange. I ...

    $1479 (Avg Bid)
    $1479 Сер. заявка
    22 заявки

    bitcoin borsa ve coll cuzdan uygulamasi isteniyor ve Takpara atında kendi alt coin yaratmak borsaya sokmak 7 /24 aktif sunucu destek ve güvenlik siber saldırılara karşı Yapay zeka ile geliştirilmesi istiyor um yada ne oluyorsa süre kısıtlaması var ihtiyacta

    $6603 (Avg Bid)
    $6603 Сер. заявка
    12 заявки
    DEX Exchange Website 2 дні(-в) left
    ПІДТВЕРДЖЕНО

    If you have a DEX experience in cryptocurrency exchange, please bid on this project! I want to hire Bounyavong! Thanks!

    $842 (Avg Bid)
    $842 Сер. заявка
    15 заявки
    Blockchain And fund managment paltform for investment firms 2 дні(-в) left
    ПІДТВЕРДЖЕНО

    i wanna build the best platefrom for crypto hegdefund managment companys on its own blockchain. our toke will be a proof of stake token that pay company dividens in btc. wh have big plans to lanc a ico in sept tember and need to find a tea. the best team. we are trying to raise 100 million dollars for this project doing the up front stuff now need to move fast in the first stages to we can lanch i...

    $54 / hr (Avg Bid)
    $54 / hr Сер. заявка
    45 заявки
    Set up cryptocurrency mining pool for testing. 2 дні(-в) left
    ПІДТВЕРДЖЕНО

    Looking for an experienced web developer to get a mining pool online for testing. The code is open source and located here [увійдіть, щоб побачити URL] The perfect candidate will have experience with web development, blockchains, and AWS deployment. It should be a simple job the documentation on GitHub explains most of the steps. The front end is included and I do not require any customization.

    $63 (Avg Bid)
    $63 Сер. заявка
    6 заявки

    I want to buy an exchange wallet app please, if you have completed one before and you have the source codes, you can easily edit the UIs with what I would give you and then I buy it, please I need this in 24 hours at least and would like to work more with you guys after this is completed for me,don't message me if you don't have what needed .

    $269 (Avg Bid)
    $269 Сер. заявка
    7 заявки
    Ebook Writer Needed -- 30K words max 1 день left
    ПІДТВЕРДЖЕНО

    Hello everybody, I am searching for a ghostwriter who could help me with writing a book. The content of the book will be little technical so a high English level is required. Its all about Cryptocurrency and Bitcoin. You must be excellent writer and have first-hand experience with trading in Cryptos. You must understand graphs, charts, candlesticks and explain them in words. I will provide yo...

    $699 (Avg Bid)
    $699 Сер. заявка
    9 заявки
    Cryptocurrency expert required 1 день left
    ПІДТВЕРДЖЕНО

    Looking for cryptocurrency expert Need individual developer only . No Company or agency.

    $22 / hr (Avg Bid)
    $22 / hr Сер. заявка
    45 заявки
    Ebook Writer Needed -- 30K words 1 день left
    ПІДТВЕРДЖЕНО

    Hello everybody, I am searching for a ghostwriter who could help me with writing a book. The content of the book will be little technical so a high English level is required. Its all about Cryptocurrency and Bitcoin. You must be excellent writer and have first-hand experience with trading in Cryptos. You must understand graphs, charts, candlesticks and explain them in words. I will provide yo...

    $522 (Avg Bid)
    $522 Сер. заявка
    21 заявки
    BTC ONLINE 1 день left
    ПІДТВЕРДЖЕНО

    btc online, I want a platform like [увійдіть, щоб побачити URL]

    $1009 (Avg Bid)
    $1009 Сер. заявка
    27 заявки

    I have a project that i need a pow/pos/mm cryptocurrency from scratch made with latest bitcoin core, latest dash masternodes, yescriptr32 for PoW algo, Pivx for PoS or a better PoSv3 fixed and that runs over TOR with OBFS4 and Meek plugins enabled once this is done it will need to be integrated to an existing blockchain of a cryptocurrency via a hard fork. Project for the specialists

    $37 / hr (Avg Bid)
    $37 / hr Сер. заявка
    33 заявки
    make me a crypto currency 1 день left
    ПІДТВЕРДЖЕНО

    i would like my own erc20 token or waves token creating

    $880 (Avg Bid)
    $880 Сер. заявка
    31 заявки

    I am looking for blockchain developer, not agency. You have to have wide and deep experience in masternode and Pivx. The details will be shared via interview.

    $2367 (Avg Bid)
    $2367 Сер. заявка
    30 заявки

    We are launching an [увійдіть, щоб побачити URL] need a developer to create ethereum smart contract for our project and attach it to my landing [увійдіть, щоб побачити URL] also need to integrate it in our website and also add automatic issues of tokkens to the investors.

    $475 (Avg Bid)
    $475 Сер. заявка
    38 заявки

    I am looking for blockchain developer who has wide and deep experience in masternodes and Pivx. If you have worked on Pivx, do not hesitate to contact me. The details will be shared in interview.

    $2118 (Avg Bid)
    $2118 Сер. заявка
    21 заявки

    I want to develop a app like coinbase and Bianance app whereby exchanges can be carried out I need this done in under 72 hours, don't send me offer if you don't have any other exchange apps you have built before and we make an edits to it with my UI designs, Waiting....

    $834 (Avg Bid)
    $834 Сер. заявка
    25 заявки

    casino bitcoin project i want to make casino. use Crypto.

    $287 (Avg Bid)
    $287 Сер. заявка
    20 заявки

    Login/registration with 2FA ** and mail verficiation - Address needs to be auto fill for Europe and US based on postcode. - Forgot pass , secret question and 2factor on forgot password - Im certified 18 years old check box does not have a tick icon, it just change color from white to blue which doesn't clarify which is chec...

    $233 (Avg Bid)
    $233 Сер. заявка
    11 заявки
    Create a new Crypto Currency 19 дні(-в) left
    ПІДТВЕРДЖЕНО

    Create a new Crypto Currency by Improving open source existing codes and ensure its reliability to connect to external environments, and implement sepcific specs and deliverables and high level security.

    $3395 - $5658
    Обраний Прихований Угода про нерозголошення
    $3395 - $5658
    41 заявки