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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 found, pricing in AUD

    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, ...

    $71 / hr (Avg Bid)
    $71 / hr Avg Bid
    4 bids

    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, ...

    $8237 (Avg Bid)
    $8237 Avg Bid
    6 bids

    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...

    $1045 - $2091
    $1045 - $2091
    0 bids

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

    $226 (Avg Bid)
    $226 Avg Bid
    6 bids

    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.

    $1353 (Avg Bid)
    $1353 Avg Bid
    10 bids

    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...

    $22 / hr (Avg Bid)
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    3 bids
    Ethereum Smart Contract 6 days left
    VERIFIED

    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...

    $237 (Avg Bid)
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    2 bids

    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...

    $348 - $1045
    $348 - $1045
    0 bids

    Create an secure wallet for Ethereum & Bitcoin .

    $251 (Avg Bid)
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    6 bids

    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)

    $247 (Avg Bid)
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    4 bids

    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

    $184 (Avg Bid)
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    3 bids

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

    $187 (Avg Bid)
    $187 Avg Bid
    3 bids

    Create an secure online btc or eth wallet for me !

    $56 (Avg Bid)
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    1 bids
    Bitcoin Dev ! 4 days left

    Create an secure online btc or eth wallet for me !

    $380 (Avg Bid)
    $380 Avg Bid
    6 bids

    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... [login to view URL] [login to view URL] I want to include these Major Indices from this site [login to view URL] I want to add also these Top 50 Companies Stocks

    $877 (Avg Bid)
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    14 bids
    Online marketer 4 days left

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

    $1497 (Avg Bid)
    $1497 Avg Bid
    12 bids
    smart contract on for tron 4 days left
    VERIFIED

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

    $28 - $233
    Sealed NDA
    $28 - $233
    1 bids

    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.

    $35 (Avg Bid)
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    1 bids

    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.

    $8972 (Avg Bid)
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    27 bids
    bitcoin fork 4 days left
    VERIFIED

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

    $930 (Avg Bid)
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    11 bids

    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 [login to view 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.

    $176 (Avg Bid)
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    15 bids
    trading bot for Binance 3 days left
    VERIFIED

    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

    $314 (Avg Bid)
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    20 bids

    We have full node running, working fine, we used to send transactions in 1-2 seconds, now it is talking 8 seconds. Our [login to view 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.

    $195 (Avg Bid)
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    1 bids

    I want a full service bitcoin wallet and merchant service with all the features if Bitpay or [login to view 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 integrati...

    $3339 (Avg Bid)
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    20 bids

    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.

    $118 (Avg Bid)
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    2 bids
    Help with RubyKube Peatio 2 days left
    VERIFIED

    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.

    $2295 (Avg Bid)
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    17 bids

    Help me to build a blockchain platform..

    $291 (Avg Bid)
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    15 bids

    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.

    $26 / hr (Avg Bid)
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    3 bids

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

    $30 - $249
    Sealed
    $30 - $249
    5 bids

    Hello There! Trust Wallet code link: [login to view URL] Link of desktop wallet LQX Coin: [login to view URL] (linux) [login to view 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 address and I...

    $30 - $250
    Sealed
    $30 - $250
    1 bids
    Create a bitcoin wallet in c# 2 days left
    VERIFIED

    Make the below project build and run on my pc. [login to view URL]

    $312 (Avg Bid)
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    13 bids

    BITCOIN MINING INVESTMENT PROGRAM

    $3 - $11 / hr
    $3 - $11 / hr
    0 bids

    Crypto currency investment platform for bitcoin [login to view URL], apply if you are interested for business

    $28 / hr (Avg Bid)
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    5 bids

    Create an secure online Crypto Wallet for our company !

    $245 (Avg Bid)
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    8 bids

    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 ...

    $77 (Avg Bid)
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    5 bids

    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...

    $1555 (Avg Bid)
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    14 bids

    Beseeching fot bitcoin and blockchain experts to build platform.

    $509 (Avg Bid)
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    9 bids

    create DAEMON(WALLET) of united bitcoin for windows wallet

    $464 (Avg Bid)
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    1 bids

    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...

    $28 / hr (Avg Bid)
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    14 bids
    Cryptocurrency P2P platform 19 hours left
    VERIFIED

    Crypto P2P platform with language translator and geo location.

    $1330 (Avg Bid)
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    11 bids

    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 ...

    $6155 (Avg Bid)
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    23 bids

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

    $726 (Avg Bid)
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    4 bids
    blockchain/ kraken api 3 hours left
    VERIFIED

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

    $803 (Avg Bid)
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    8 bids

    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.

    $155 (Avg Bid)
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    1 bids
    Bitcoin arbitrage api 2 hours left
    VERIFIED

    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.

    $120 (Avg Bid)
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    3 bids

    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.

    $1369 (Avg Bid)
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    15 bids

    Please do not launch proposals without reading and understanding the entire content of this work! IOS and Android Trust Wallet code link: [login to view URL] Link of desktop wallet LQX Coin: [login to view URL] (linux) [login to view 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 p...

    $263 (Avg Bid)
    Featured
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    5 bids

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