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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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    smart contract on for tron -- 2 6 дні(-в) left
    ПІДТВЕРДЖЕНО

    Hi i am looking for a developer who can create smart contract on traon ( for invenstment purpose) not for token [увійдіть, щоб побачити URL] this type of smart contract. apply with tron word only

    $134 (Avg Bid)
    $134 Сер. заявка
    3 заявки
    Bitcoin Dev ! -- 2 6 дні(-в) left

    Create an secure online btc or eth wallet for me !

    $37 (Avg Bid)
    $37 Сер. заявка
    2 заявки
    Bitcoin Dev ! 6 дні(-в) left

    Create an secure online btc or eth wallet for me !

    $273 (Avg Bid)
    $273 Сер. заявка
    6 заявки
    Add stocks to Crypto Platform ! 5 дні(-в) left
    ПІДТВЕРДЖЕНО

    Hello Everyone, I got a cryptocurrency platform it has charts options to trade all types of cryptocurrencies. I need to add STOCKS to it!!! Here is my platform... [увійдіть, щоб побачити URL] [увійдіть, щоб побачити URL] I want to include these Major Indices from this site [увійдіть, щоб побачити URL] I want to add also these Top 50 Companies Stocks

    $642 (Avg Bid)
    $642 Сер. заявка
    15 заявки
    Online marketer 5 дні(-в) left

    I am looking for a skillful online/field marketer with adequate knowledge of bitcoin and other crypto currency for immediate contract

    $1019 (Avg Bid)
    $1019 Сер. заявка
    10 заявки
    smart contract on for tron 5 дні(-в) left
    ПІДТВЕРДЖЕНО

    Hi i am looking for a developer who can create smart contract on traon ( for invenstment purpose) not for token [увійдіть, щоб побачити URL] this type of smart contract. apply with tron word only

    $20 - $167
    Прихований Угода про нерозголошення
    $20 - $167
    1 заявки
    Create a custom stellar token coin 5 дні(-в) left
    ПІДТВЕРДЖЕНО

    I know how to create a custom stellar token it takes like 10 minutes or so , i can provide quantity token symbol and token name and will give you logo for it and also base stellar i.e 75+75 for issue and distribution account so that you can make the token public.

    $25 (Avg Bid)
    $25 Сер. заявка
    1 заявки
    Creating a cryptocurrency 5 дні(-в) left

    I need a person who can create a cryptocurrency. A huge project is being created and cryptocurrency is needed for it. We are waiting for your suggestions.

    $6443 (Avg Bid)
    $6443 Сер. заявка
    28 заявки
    bitcoin fork 5 дні(-в) left
    ПІДТВЕРДЖЕНО

    new cryptocurrency software. It will be done with a bitcoin fork.

    $783 (Avg Bid)
    $783 Сер. заявка
    9 заявки

    I need python expert to create a software for me, the software can detect the transaction then auto buy and sell in uniswap, this is the uniswap python doc [увійдіть, щоб побачити URL], I have also a API to detect transaction, actually this is a bot, please bid only expert, type "Python expert" in your bid so I know your reading and not and spam.

    $126 (Avg Bid)
    $126 Сер. заявка
    15 заявки
    trading bot for Binance 5 дні(-в) left
    ПІДТВЕРДЖЕНО

    Hello all, I have ready python code for the BTC/USD trading bot that and I want to start live trading using Binance API . work scope ; 1) update code to start live trading in Binance market using Binance API 2) get historical data do backtesting to validate code working properly

    $225 (Avg Bid)
    $225 Сер. заявка
    20 заявки
    Bitcoin Core Full Node - Speedup Sending BTC Transactions 4 дні(-в) left
    ПІДТВЕРДЖЕНО

    We have full node running, working fine, we used to send transactions in 1-2 seconds, now it is talking 8 seconds. Our [увійдіть, щоб побачити URL] file is around 1.1 GB. Now How can you help to speedup the BTC sending payments, if you have such experience let's connect. I need working file in php to do transaction and I will verify if it will send transactions in 1-2 seconds as before.

    $140 (Avg Bid)
    $140 Сер. заявка
    1 заявки

    I want a full service bitcoin wallet and merchant service with all the features if Bitpay or [увійдіть, щоб побачити URL] with bitcoin as the only source for payment. I need anybody to be able to accept payments using this platform without having to apply for a merchant account. Easy to use copy and paste merchant embed code into a users website is a must as well as more complicated shopping cart ...

    $2218 (Avg Bid)
    $2218 Сер. заявка
    17 заявки

    I need a custom bustabit betting script. I have a current one attached that is very basic. I dont want a martingale. I want the bets to go up 2 units when I lose and down 1 unit when i win. This will continue until I am in profit even 1 bit more than when I was at the start of the sequence. It will restart at the base bet every time it is in profit.

    $85 (Avg Bid)
    $85 Сер. заявка
    2 заявки
    Help with RubyKube Peatio 4 дні(-в) left
    ПІДТВЕРДЖЕНО

    Hi, I am looking for someone to Install rubykube opensource software on a server and make a few customizations. Add in Fiat support with API Add Cardano as an extra cryptocurrency on the exchange.

    $1663 (Avg Bid)
    $1663 Сер. заявка
    16 заявки
    Build me a Blockchain 4 дні(-в) left

    Help me to build a blockchain platform..

    $212 (Avg Bid)
    $212 Сер. заявка
    14 заявки

    An ICO and asset tokenization service provider is looking for a marketing executive for its Cryptocurrency and DeFi business development issues. Payments are based in crypto coins and tokens in a monthly basis. Applicants must have massive experience in initial exchange offerings (IEO) and initial coin offerings (ICO) marketing and business development.

    $19 / hr (Avg Bid)
    $19 / hr Сер. заявка
    3 заявки
    looking for blockchain app developer 3 дні(-в) left
    ПІДТВЕРДЖЕНО

    Hello There, Only expert follow the project More detils via chat box . Thank You

    $21 - $179
    Прихований
    $21 - $179
    5 заявки

    Hello There! Trust Wallet code link: [увійдіть, щоб побачити URL] Link of desktop wallet LQX Coin: [увійдіть, щоб побачити URL] (linux) [увійдіть, щоб побачити URL] (windows) The basic manual for compiling and deploying the application for Android and IOS must be prepared Scope: 0. Add the LQX Coin coin to the wallet portfolio and test the sending and receiving of coins. When you're read...

    $21 - $179
    Прихований
    $21 - $179
    1 заявки
    Create a bitcoin wallet in c# 3 дні(-в) left
    ПІДТВЕРДЖЕНО

    Make the below project build and run on my pc. [увійдіть, щоб побачити URL]

    $224 (Avg Bid)
    $224 Сер. заявка
    13 заявки

    BITCOIN MINING INVESTMENT PROGRAM

    $2 - $8 / hr
    $2 - $8 / hr
    0 заявки

    Crypto currency investment platform for bitcoin [увійдіть, щоб побачити URL], apply if you are interested for business

    $20 / hr (Avg Bid)
    $20 / hr Сер. заявка
    5 заявки

    Create an secure online Crypto Wallet for our company !

    $176 (Avg Bid)
    $176 Сер. заявка
    8 заявки
    Blockchain, Ethereum, and Smart contracts advisor 3 дні(-в) left
    ПІДТВЕРДЖЕНО

    Need someone experienced on the above , and who has done projects in them to submit a short research report , answering a few specific questions , and recommending a rough logic/algorithm for implementing a function in crypto .. The task can ideally be finished quite quickly for someone experienced who has done this before. Key Questions : 1) About building unique digital assets for existing ...

    $55 (Avg Bid)
    $55 Сер. заявка
    5 заявки
    Gateway ethereum erc20 3 дні(-в) left

    ENGLISH : i need to develop an ethereum erc20 gateway payment method This means that when a person registers on my platform they will be assigned a new erc20 wallet. from there you can deposit and this balance is loaded on the platform. When withdrawing the balance you will have to make a withdrawal request. This means that I only need a deposit function and not a withdrawal function. I wa...

    $1142 (Avg Bid)
    $1142 Сер. заявка
    15 заявки
    Bitcoin experts 3 дні(-в) left

    Beseeching fot bitcoin and blockchain experts to build platform.

    $365 (Avg Bid)
    $365 Сер. заявка
    9 заявки

    create DAEMON(WALLET) of united bitcoin for windows wallet

    $333 (Avg Bid)
    $333 Сер. заявка
    1 заявки

    I need an expert who can build a user interface and a backend interface for our btcpayserver. Our users are website owners who want integrate bitcoin payments on their websites. For each transaction made at our btcpayserver they pay a percentage of the transaction amount to us. User frontend must have a accounting system for paying the transaction costs with bitcooins or with ideal on their ac...

    $20 / hr (Avg Bid)
    $20 / hr Сер. заявка
    14 заявки
    Cryptocurrency P2P platform 2 дні(-в) left
    ПІДТВЕРДЖЕНО

    Crypto P2P platform with language translator and geo location.

    $943 (Avg Bid)
    $943 Сер. заявка
    12 заявки
    Create a bitcoin gambling website (Must have similar experience) 2 дні(-в) left
    ПІДТВЕРДЖЕНО

    This website will have: - Game (game + relevant Admin Panel data + provably fair) - Deposit and withdraw (Bitcoin + Welcome Bonus) - Affiliates (Invite users for % of commission with affiliate code/link) - Level up (levels up the user and users receive rewards) - Chat (including moderators) - etc Message me for more information including document with the features + requirements, images ...

    $4416 (Avg Bid)
    $4416 Сер. заявка
    23 заявки

    required a cryptocurrency who can find Raw transition from explorer of united bitcoin.

    $521 (Avg Bid)
    $521 Сер. заявка
    4 заявки
    blockchain/ kraken api 1 день left
    ПІДТВЕРДЖЕНО

    looking for a dev to integrate a crypto withdraw function using kraken api. can also integrate stellar codes

    $678 (Avg Bid)
    $678 Сер. заявка
    9 заявки
    Need Bitcoin/Digibyte Daemon and Mining Software Expert 1 день left
    ПІДТВЕРДЖЕНО

    I am trying to fix some issues on my mining pool. I need someone who has vast knowledge of Bitcoin Core software and has worked on Mining Pool Software like Miningcore.

    $111 (Avg Bid)
    $111 Сер. заявка
    1 заявки
    Bitcoin arbitrage api 1 день left
    ПІДТВЕРДЖЕНО

    i need a developer that have experience in api from binance, kucoin and bitifinex to give me some results of arbitrage in many products with historic. you will have to develop this apis with binance, kucoin and bitifinex , connect and test arbitrage of btc and others, and give me the results historic.

    $86 (Avg Bid)
    $86 Сер. заявка
    3 заявки

    Hi, I need someone to create secure way to deposit and withdraw BTC, ETH and LTC from my website. It can use 3rd party application to send the currency but it has to be secure and the fee cant be high. Each user had to have 3 different balance for each coin.

    $982 (Avg Bid)
    $982 Сер. заявка
    15 заявки
    Build a Custody system 23 годин(-и) left

    I want to build a custody system in blockchain

    $2537 (Avg Bid)
    $2537 Сер. заявка
    12 заявки

    Hello , I have bitcoin node server and I want to implement bitcoin deposit and withdraw with this. Please bid if you have enough experience for this bitcoin node server. Thanks.

    $257 (Avg Bid)
    $257 Сер. заявка
    4 заявки
    ethereum and solidity language 2 годин(-и) left

    Anyone having experience in ethereum and solidity language can ping me i have one interesting project.

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

    Hi, I just got back from the National Bitcoin conference in Miami and finally think I am ready to pursue my own token. I have been in the cryptocurrency space since 2012. Although, have only been approaching it seriously this past year. I am very approachable, easy and fun to work with. I am needing a developer who fully understands blockchain principles, who I can run my ideas against and hopef...

    $2867 (Avg Bid)
    $2867 Сер. заявка
    9 заявки
    ERC20 Ethereum Token 1 година left
    ПІДТВЕРДЖЕНО

    I am looking for someone expert in developer token erc20 on ethereum. I know its easy and quick and will not take much time

    $420 (Avg Bid)
    $420 Сер. заявка
    5 заявки
    cryptocurrency wallet 1 година left

    i will like to develop a cryptocurrency wallet for my token

    $537 (Avg Bid)
    $537 Сер. заявка
    10 заявки
    Cryptocurrency wallet -- 2 Закінчується left

    Billetera de criptomonedas como [увійдіть, щоб побачити URL] o [увійдіть, щоб побачити URL] o [увійдіть, щоб побачити URL] que permita depositos en MXN y exchange a Criptomonedas.

    $1034 (Avg Bid)
    $1034 Сер. заявка
    5 заявки