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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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    38 работ(-а,-ы) найдено, цены указаны в USD

    e-commerce website with bitcoin payment system

    $205 (Avg Bid)
    $205 Ср. ставка
    11 ставки
    Crypto Exchange With Invest Program 6 дней(-я) left
    ПОДТВЕРЖДЕН

    Exchange 1. Cryptocurrency exchange with three(3) trading pair as follows: BTC-Others, ETH-Others, USDT-Others # BTC/ETH/USDT ---- 30 coin trading pair. 2. All market trading should look like genuine. To do that in API you should show other exchange data (as public can realize that this data is genuine trading ongoing) 3. In exchange user can see the last 24 hour total trade volume for every pa...

    $1485 (Avg Bid)
    $1485 Ср. ставка
    10 ставки

    I need you to develop a cryptocurrency coin like bitcoin. I do not want tokens on Ethereum.

    $7517 (Avg Bid)
    $7517 Ср. ставка
    7 ставки
    Need a Blockchain Developer 5 дней(-я) left

    Need a Blockchain Developer...

    $595 (Avg Bid)
    $595 Ср. ставка
    12 ставки
    IOS Wallet For BSTY Using Electron Cash Code 5 дней(-я) left
    ПОДТВЕРЖДЕН

    Take that wallet code, rename some things to use electrum_bsty instead of electroncash, change it to use electrum API, and test it

    $327 (Avg Bid)
    $327 Ср. ставка
    2 ставки
    Searching Bitcoin Addresses 5 дней(-я) left

    I have not difficult work with blockchain explorer. You should be: - Care - Responsibility - Availability of a smartphone/ computer. Fixed price for this work 520$ in crypto.

    $491 (Avg Bid)
    $491 Ср. ставка
    17 ставки

    I want to build a digital economy based on supply chain (with inventory re-order system, point of sales menu)that fits any business,any industry have you done also ewallet/crypto exchange? for new account , the applicant need to hold his passport, make a selfi and upload with address proof , right? i want to branch one more step down for 'corporate user' in crypto exchange/ewallet, n...

    $3916 (Avg Bid)
    $3916 Ср. ставка
    28 ставки
    Online crypto casino 5 дней(-я) left
    ПОДТВЕРЖДЕН

    Hello, I need a ready-made online casino with cryptocurrency enabled as payment gateway. I also need a demo to test the casino games

    $10249 (Avg Bid)
    $10249 Ср. ставка
    13 ставки
    Urgent: Geth Champion for solving issues on POA blockchain 5 дней(-я) left
    ПОДТВЕРЖДЕН

    POA Blockchain has stopped. We like somebody to recover.

    $27 / hr (Avg Bid)
    $27 / hr Ср. ставка
    4 ставки
    (Remote) Online Research RESIDE IN THAILAND 5 дней(-я) left
    ПОДТВЕРЖДЕН

    Note: Please apply only if you reside in Thailand Remitano: One of the largest peer-to-peer (p2p) cryptocurrency trading platforms in the world, currently serving users in more than 30 countries. The platform provides an escrowed p2p crypto marketplace allowing users to buy, sell and swap crypto and fiat easily and safely. Remitano is a market leader in the p2p platform space, featuring an intuit...

    $476 (Avg Bid)
    $476 Ср. ставка
    4 ставки
    Get set of Bitcoin exchange Trade Files [BUDGET=$100] 5 дней(-я) left
    ПОДТВЕРЖДЕН

    Hi there. I want a set of RECENT (i.e: 2020) trade files from a number of Crypto-currency Exchanges. I will use these trade files to work on a project. You could already have an account and can just download a trade file. Or you could simply sign up, make a few trades quickly, then download a trade file. I don't expect there is any personal information on any of these trade files - but i...

    $114 (Avg Bid)
    $114 Ср. ставка
    10 ставки

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

    $466 (Avg Bid)
    $466 Ср. ставка
    4 ставки
    Cripto now 4 дней(-я) left

    Creation of a cryptocurrency site with new quotes and a working platform for trading and exchanging cryptocurrency

    $17 / hr (Avg Bid)
    $17 / hr Ср. ставка
    16 ставки
    Bitcoin Lightning Network 4 дней(-я) left

    Building the network and showing on screen the network nodes, the channels with their balances, and the transactions using the testnet to show the behavior of the network (HTLC, Onion Protocol, etc...).

    $22 / hr (Avg Bid)
    $22 / hr Ср. ставка
    6 ставки
    crypto needed 4 дней(-я) left

    crypto needed for btc advice on rate and availability

    $265 (Avg Bid)
    $265 Ср. ставка
    3 ставки

    Hi i am looking to hire a laravel developer who have experience on api and can change website layout and design of the project. thanks

    $125 (Avg Bid)
    $125 Ср. ставка
    22 ставки

    Looking for experienced react developer to implement Ginses cryptocurrencies WebSocket to get and render real-time data: [войдите, чтобы посмотреть URL] You should be experienced with [войдите, чтобы посмотреть URL] as well.

    $30 / hr (Avg Bid)
    $30 / hr Ср. ставка
    32 ставки
    walk me through creating a stable & secure bitcoind server 3 дней(-я) left
    ПОДТВЕРЖДЕН

    I am currently working on a website that requires me to have wallets stored on my servers, I need someone to walk me through creating a stable & secure bitcoind server. I need someone who has done this at least 5-10 times before. Thanks

    $149 (Avg Bid)
    $149 Ср. ставка
    6 ставки
    Building an exchange platform similar to paxful 3 дней(-я) left
    ПОДТВЕРЖДЕН

    Hello, I am looking for a Node.js developer with Angular/React.js experience. We're going to build a crypto exchange platform similar to Paxful. Full details will be shared with the selected freelancer. Before bidding you must check paxful first and give me a brief of what you understood in the proposal, otherwise I'll ignore it. Knowledge with btc wallets and Bitcoind is a plus. Than...

    $1595 (Avg Bid)
    $1595 Ср. ставка
    32 ставки
    crypto Trader 3 дней(-я) left
    ПОДТВЕРЖДЕН

    Need a trader who has large network of investors and traders.

    $300 (Avg Bid)
    $300 Ср. ставка
    5 ставки
    i need a Bitcoin trading site 2 дней(-я) left

    a website for trading crypto currency

    $763 (Avg Bid)
    $763 Ср. ставка
    4 ставки
    krishna and krishna 2 дней(-я) left

    I need you to write some articles.

    $12 (Avg Bid)
    $12 Ср. ставка
    27 ставки
    Wallet app developer 2 дней(-я) left

    Hi I'm interested in working with your team to develop a good reliable cryptocurrency app. I would like to know if your able to develop my own coin also. On this app will the users be able buy other coins and see live prices. Also would this app be able to charge a fee per transaction. I look forward to hearing from you Thank you

    $1525 (Avg Bid)
    $1525 Ср. ставка
    13 ставки

    I'm looking for someone who has conducted blocked in analysis before. I have no preference as to what tool you use, whether you something open source and free like [войдите, чтобы посмотреть URL] or commercial like chainalysis. For example: Transactions on 2020-06-27 where Total Input is Between 10.1 and 10.5 I have about 10 queries that need to be done like that. I'm expecting to pay ...

    $181 (Avg Bid)
    $181 Ср. ставка
    5 ставки
    Python Bitcoin wallet, electrum, receive coins 1 день left
    ПОДТВЕРЖДЕН

    Hello, my plan to is to realize a python system which could generate a unique receiving bitcoin adress and check how much coins are transferred to this system. I'll create a bitcoin wallet using electrum [войдите, чтобы посмотреть URL] import it in that tool and have functions to generate new receiving sub adresses (which belong to main adress) and check balance for each of that. The Softwar...

    $199 (Avg Bid)
    $199 Ср. ставка
    8 ставки

    I need a profitable auto-trading app that works on [войдите, чтобы посмотреть URL] via bitmex API. You must provide your own profitable trading strategy.

    $809 (Avg Bid)
    $809 Ср. ставка
    16 ставки
    Setup seeder for my cryptocurrency 1 день left
    ПОДТВЕРЖДЕН

    Hello, I'm looking someone who can setup DNS seeder for my cryptocurrency based on PIVX. DNS Seeder: [войдите, чтобы посмотреть URL]

    $46 (Avg Bid)
    $46 Ср. ставка
    3 ставки

    I need someone who will act as my personal assistant and secretary at the same time, I work and work as been cumbersome, i need an assistant to help relieve the work load. A lot of security measures will be taken just to ensure the safety of myself and my money. Inbox only when you really ready.

    $18 / hr (Avg Bid)
    $18 / hr Ср. ставка
    38 ставки

    This project helps employ the very best bitcoin and Crypto currency agents around the world for top bitcoin vendors, marketers, and company's worldwide. we work with companies like eToro, Coinbase, Robinhood, Gemini, BitStamp, [войдите, чтобы посмотреть URL], [войдите, чтобы посмотреть URL], Binance etc you don't have to be a crypto guru to be employed, all you need is your laptop and b...

    $6283 (Avg Bid)
    $6283 Ср. ставка
    10 ставки

    I need javascript or PHP code that i can past on a web page that calculates the following using the formulas below and connects to [войдите, чтобы посмотреть URL] API to pull prices. If Coinbase does not have one then [войдите, чтобы посмотреть URL] will do. I need all the content on this page centered on auto updates prices every 3 seconds. I need the code to be commented so I can update the...

    $159 (Avg Bid)
    $159 Ср. ставка
    20 ставки

    I need to integrate coinpayment api to my website .and change fiat system to crypto

    $21 / hr (Avg Bid)
    $21 / hr Ср. ставка
    18 ставки
    Content Writer for Crypto/Blockchain 11 часов(-а) left
    ПОДТВЕРЖДЕН

    I am in search of a content writer to write articles and posts on blockchain/crypto-related topics. Basic knowledge on the topic is a mandatory requirement. These are my requirements: High-quality posts such that minimal edits are required. Content should be 100% unique. No plagiarism. This is a must. It will be screened through premium software. No grammar/ spelling mistakes. Background research...

    $14 (Avg Bid)
    $14 Ср. ставка
    27 ставки

    I need you to build a crypto exchange wallet and a token, on website and mobile app

    $482 (Avg Bid)
    $482 Ср. ставка
    8 ставки
    Researcher good with maths 6 часов(-а) left
    ПОДТВЕРЖДЕН

    I have a small spreadsheet calculator which takes the number of cryptocurrency mining rigs as input, calculates their total cost and electricity consumption and spits out the resulting profit as output. The profit is calculated for three different sources of energy - wind, solar, and regular electricity. I need a researcher to help me figure out the cost of batteries, cooling, housing, etc. (peri...

    $36 (Avg Bid)
    $36 Ср. ставка
    14 ставки
    Professional marketers needed 3 часов(-а) left
    ПОДТВЕРЖДЕН

    There is an office branch in Dubai, and the investment host company is regulated by many entities including the FCA in the UK, DMCC in UAE and Client investment is fully insured by LLOYD'S. Which gives us a bit of advantage over our competition, as most of them hold investments without being regulated. and clients are never insured. this is a 100% commission based job. nothing is paid upfro...

    $250 - $750
    Скрытый
    $250 - $750
    8 ставки
    Crypto expert required.. -- 3 4 дней(-я) left

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

    $7 - $103
    Скрытый
    $7 - $103
    27 ставки
    Crypto expert required.. -- 2 4 дней(-я) left

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

    $7 - $69
    Скрытый
    $7 - $69
    16 ставки
    Crypto expert required.. 3 дней(-я) left

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

    $7 - $69
    Скрытый
    $7 - $69
    71 ставки