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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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    47 jobs fundet, i prisklassen EUR

    Looking for an experienced blockchain developer who understands the logic behind ERC-20 tokens. Requirements: - Create ERC-20 TOKEN - Create YIELD FARMING mechanism (google DeFi) - Create Smart Contracts - Maintain token integrity If you have experience in this field and have worked with other cryptocurrencies in the past or on projects relating to cryptocurrencies such as Bitcoin or Ethereum, ...

    €44 / hr (Avg Bid)
    €44 / hr Gns Bud
    2 bud

    Looking for an experienced blockchain developer who understands the logic behind ERC-20 tokens. Requirements: - Create ERC-20 TOKEN - Create YIELD FARMING mechanism (google DeFi) - Create Smart Contracts - Maintain token integrity If you have experience in this field and have worked with other cryptocurrencies in the past or on projects relating to cryptocurrencies such as Bitcoin or Ethereum, ...

    €4737 (Avg Bid)
    €4737 Gns Bud
    5 bud

    We are launching a DEFI protocol and token in a few days and we are Looking for entry to expert level community management and various marketing specialists to help with our launch. The Ethereum DEFI product will be launched unto Ethereum Mainnet within a period under 2 weeks. The product is a first in its class combining lending with MMO gaming with underlying gamified DEFI protocol token to be...

    €636 - €1273
    €636 - €1273
    0 bud
    Business development Bangladesh 6 dage left
    VERIFICERET

    Im looking for people that can bring me leads in Bangladesh of E exchangers (such as neteller, skrill, astropay, bitcoin).

    €137 (Avg Bid)
    €137 Gns Bud
    6 bud

    Hi, i am searching for some one who can help me to create an application wallet connected to a debit and credit card for spending cryptocurrency. To find out more, come talk to me! Thank you.

    €836 (Avg Bid)
    €836 Gns Bud
    9 bud

    We are a team from young to mature population with various experiences in the world of cryptocurrencies and blockchain…. We are at an early stage with our ICO project the project is currently in the process early pre-sale phase… we are inviting all crypto enthusiasts who are willing to participate in the project in the manner of advertising or invitations with referral codes&helli...

    €14 / hr (Avg Bid)
    €14 / hr Gns Bud
    3 bud
    Ethereum Smart Contract 6 dage left
    VERIFICERET

    Ethereum contracts with the following requirements: 1. ERC-20 Token based on OpenZeppelin contracts. The token has a fixed supply and is non-mintable. 2. A vesting contract, also from Openzeppelin. Allows lockup of the ERC-20 token for a given timeframe and linear unlocking. 3. A contract that allows holders of the ERC-20 token in Contract 1. to transfer any ERC-20 token without paying gas. The...

    €144 (Avg Bid)
    €144 Gns Bud
    2 bud

    Develop and deploy a Market Making bot on Loopring (DEX) - using Binance or MXC orderbook/mid price (as source of truth). - Bot should be able to react within sub 200 ms on price/ spread changes on Binance or MXC ond post/cancel orders on Loopring - Bot would need some sort of liquidity management (E.g. if we run low on a token we would up the bid/ask in order to buy the tokens back) Not a primar...

    €212 - €636
    €212 - €636
    0 bud

    Create an secure wallet for Ethereum & Bitcoin .

    €153 (Avg Bid)
    €153 Gns Bud
    6 bud

    we need a blockchain developer to create a staking platform with lending option. using ethereum blockchain. we need similar platform like lend and harmony. ( these are crypto projects) if you are a blockchain developer. please reply and text this code (cryptostake99)

    €150 (Avg Bid)
    €150 Gns Bud
    4 bud

    I need some bitcoin balance in my wallet..is there anyone can transfer bitcoin worth $70 I ll pay $100 to him/her. BID PRICE $100

    €112 (Avg Bid)
    €112 Gns Bud
    3 bud
    smart contract on for tron -- 2 4 dage left
    VERIFICERET

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

    €114 (Avg Bid)
    €114 Gns Bud
    3 bud

    Create an secure online btc or eth wallet for me !

    €34 (Avg Bid)
    €34 Gns Bud
    1 bud
    Bitcoin Dev ! 4 dage left

    Create an secure online btc or eth wallet for me !

    €232 (Avg Bid)
    €232 Gns Bud
    6 bud
    Add stocks to Crypto Platform ! 4 dage left
    VERIFICERET

    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... [log ind for at se URL] [log ind for at se URL] I want to include these Major Indices from this site [log ind for at se URL] I want to add also these Top 50 Companies Stocks

    €534 (Avg Bid)
    €534 Gns Bud
    14 bud
    Online marketer 4 dage left

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

    €911 (Avg Bid)
    €911 Gns Bud
    12 bud
    smart contract on for tron 4 dage left
    VERIFICERET

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

    €17 - €142
    Forseglet NDA
    €17 - €142
    1 bud
    Create a custom stellar token coin 4 dage left
    VERIFICERET

    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.

    €21 (Avg Bid)
    €21 Gns Bud
    1 bud

    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.

    €5461 (Avg Bid)
    €5461 Gns Bud
    27 bud
    bitcoin fork 4 dage left
    VERIFICERET

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

    €566 (Avg Bid)
    €566 Gns Bud
    11 bud

    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 [log ind for at se 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.

    €107 (Avg Bid)
    €107 Gns Bud
    15 bud
    trading bot for Binance 3 dage left
    VERIFICERET

    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

    €191 (Avg Bid)
    €191 Gns Bud
    20 bud

    We have full node running, working fine, we used to send transactions in 1-2 seconds, now it is talking 8 seconds. Our [log ind for at se 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.

    €119 (Avg Bid)
    €119 Gns Bud
    1 bud

    I want a full service bitcoin wallet and merchant service with all the features if Bitpay or [log ind for at se 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 integ...

    €2033 (Avg Bid)
    €2033 Gns Bud
    20 bud

    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.

    €72 (Avg Bid)
    €72 Gns Bud
    2 bud
    Help with RubyKube Peatio 2 dage left
    VERIFICERET

    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.

    €1397 (Avg Bid)
    €1397 Gns Bud
    17 bud

    Help me to build a blockchain platform..

    €177 (Avg Bid)
    €177 Gns Bud
    15 bud

    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.

    €16 / hr (Avg Bid)
    €16 / hr Gns Bud
    3 bud

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

    €18 - €152
    Forseglet
    €18 - €152
    5 bud

    Hello There! Trust Wallet code link: [log ind for at se URL] Link of desktop wallet LQX Coin: [log ind for at se URL] (linux) [log ind for at se 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 ready send me the a...

    €18 - €152
    Forseglet
    €18 - €152
    1 bud
    Create a bitcoin wallet in c# 2 dage left
    VERIFICERET

    Make the below project build and run on my pc. [log ind for at se URL]

    €190 (Avg Bid)
    €190 Gns Bud
    13 bud

    BITCOIN MINING INVESTMENT PROGRAM

    €2 - €7 / hr
    €2 - €7 / hr
    0 bud

    Crypto currency investment platform for bitcoin [log ind for at se URL], apply if you are interested for business

    €17 / hr (Avg Bid)
    €17 / hr Gns Bud
    5 bud

    Create an secure online Crypto Wallet for our company !

    €149 (Avg Bid)
    €149 Gns Bud
    8 bud

    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 ...

    €47 (Avg Bid)
    €47 Gns Bud
    5 bud

    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...

    €947 (Avg Bid)
    €947 Gns Bud
    14 bud

    Beseeching fot bitcoin and blockchain experts to build platform.

    €310 (Avg Bid)
    €310 Gns Bud
    9 bud

    create DAEMON(WALLET) of united bitcoin for windows wallet

    €283 (Avg Bid)
    €283 Gns Bud
    1 bud

    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...

    €17 / hr (Avg Bid)
    €17 / hr Gns Bud
    14 bud
    Cryptocurrency P2P platform 21 timer left
    VERIFICERET

    Crypto P2P platform with language translator and geo location.

    €809 (Avg Bid)
    €809 Gns Bud
    11 bud

    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 ...

    €3746 (Avg Bid)
    €3746 Gns Bud
    23 bud

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

    €442 (Avg Bid)
    €442 Gns Bud
    4 bud
    blockchain/ kraken api 5 timer left
    VERIFICERET

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

    €489 (Avg Bid)
    €489 Gns Bud
    8 bud

    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.

    €94 (Avg Bid)
    €94 Gns Bud
    1 bud
    Bitcoin arbitrage api 3 timer left
    VERIFICERET

    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.

    €73 (Avg Bid)
    €73 Gns Bud
    3 bud

    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.

    €833 (Avg Bid)
    €833 Gns Bud
    15 bud

    Please do not launch proposals without reading and understanding the entire content of this work! IOS and Android Trust Wallet code link: [log ind for at se URL] Link of desktop wallet LQX Coin: [log ind for at se URL] (linux) [log ind for at se 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 ...

    €160 (Avg Bid)
    Fremhævet
    €160 Gns Bud
    5 bud

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