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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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    60 jobs found, pricing in USD
    I need a new website. 6 days left
    VERIFIED

    Looking to develop [login to view URL] clone

    $697 (Avg Bid)
    $697 Avg Bid
    7 bids

    **ONLY KOREAN CITIZENS APPLY** As stated above, we are looking for a Korean ONLY citizens who will help us validate/confirm certain information/questions about cryptocurrency projects and write the answer in already pre-made document. Working on this project doesn't involve in exchanging cryptocurrencies nor paying outside of the Freelancer platform. The task is very simple and easy to do.

    $375 (Avg Bid)
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    2 bids

    I have a t17 and an s17+ both say socket connection error. Both were tested and should work fine but when I hooked him up at my house I get the error. I take it this means they're not connecting to the internet. I have three other miners hooked up, L3++ and Z9 and they connected fine Do you know how to fix this?

    $10 - $30
    $10 - $30
    0 bids

    Looking for someone with experience working with trc20/erc20. The product - crypto currency payment gateway that accepts usdt to internal trc20 wallets. Customers will transfer USDT into our wallets then we will need to be alerted programmatically. Then the platform should be able to transfer from the internal wallet to a specific trc20 address programatically as well. The payment flow will be ...

    $10 - $750
    Sealed NDA
    $10 - $750
    2 bids

    Hi, I want to integrate Bitcoin and other cryptocoin payment processors api integration to my script.

    $137 (Avg Bid)
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    5 bids
    Similar like coinpayments 6 days left
    VERIFIED

    I am looking for readymade system , similar like coinpayments. If you have, then bid with demo link. Only with demo, no time for development.

    $1125 (Avg Bid)
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    5 bids

    Good day, Developers! I'm searching for a team or a single developer who can assist me in developing a crypto casino with the features described below. This project has a timelime between 6 and 10 months to complete, with a maximum expenditure of $100,000. If you have experience in this industry and can show me proof, I will pay you more than my maximum budget. - The creation of a website ...

    $56169 (Avg Bid)
    NDA
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    31 bids

    Looking for someone who can add wallet to existing site.

    $116 (Avg Bid)
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    6 bids

    Looking for someone with experience working with trc20/erc20. The product - crypto currency payment gateway that accepts usdt to internal trc20 wallets. Customers will transfer USDT into our wallets then we will need to be alerted programmatically. Then the platform should be able to transfer from the internal wallet to a specific trc20 address programatically as well. The payment flow will be ...

    $10 - $750
    Sealed NDA
    $10 - $750
    4 bids
    Crypto Course 4 days left

    In search for someone with plenty experience and knowledge in crypto + ideally education. Able to cover/understand fundamentals, technicals, psychology and market cycles. We have a course almost complete but just need final touches, editing, input of examples, quizzes throughout. This is part of a very exciting project just need another set of experienced eyes and hands on the job! Looking forw...

    $782 (Avg Bid)
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    14 bids

    We are going to add a “Buy Button” to our website* that is transparent to the new users. The expectation is “inexperienced/first-time Cryptocurrency” buyers can buy our new token painlessly. We Will need a smart contract that requires the first transaction – enter total “dollars”, log into the “wallet” site, add a new account, provide a secret ...

    $36 / hr (Avg Bid)
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    58 bids

    I need someone to create a Crypto currency purchasing tool that can purchase new crypto tokens during new farm launches and make changes to the tool once created and allow modifications to various different tokens etc when listing takes place. Will need 2 different tools, one will need to work on Harmony (ONE) network Shard 0 The 2nd will need to work on BSC Mainnet.

    $147 (Avg Bid)
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    8 bids

    We need BSC Smart contract for BSC Token with following Features. 1 ) auto lp 2 ) auto burn 3 ) monthly BNB reward 4 ) reward on transaction 5 ) 2 different marketing wallet Features of 1st marketing wallet - Certain percentage of transaction amount should go to this Wallet in terms of bnb Features of 2nd marketing wallet - Certain percentage of transaction amount should go to this Wallet in te...

    $87 (Avg Bid)
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    1 bids

    Who we are: AroundB has been working with blockchain and fintech projects since 2016 and has over 50 successful projects accomplished. We are helping cutting-edge companies and startups grow their business and realize their potential with marketing and PR services, and we specialize in the organization of professional business events online and offline. We pride ourselves on breaking down barrier...

    $45 (Avg Bid)
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    8 bids
    Crypto token devlopment 4 days left
    VERIFIED

    Would like to create Bep20 token which has airdrop and ICO options in smart contract

    $262 (Avg Bid)
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    10 bids

    I need to solve a simple bug in my project. Don't bid if you are not bitcoin expert.

    $184 (Avg Bid)
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    5 bids
    Fork Tornado cash for Polygon 3 days left
    VERIFIED

    I want to fork Tornado Cash for Polygon Blockchain Tornado cash is a privacy blockchain which breaks the link between a sender and receiver. Its a open source project and all the code is in the github. You have to fork the github code and complete the project. You can use a simple UI to deposit and retrieve functions. Github link - [login to view URL] [login to view URL] is the working pro...

    $1205 (Avg Bid)
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    42 bids

    I am looking for someone who can create a private crypto coin. Please let me know if you can help

    $19 / hr (Avg Bid)
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    16 bids

    i am looking a payment gateway integrated to my site where customers can pay using card or any other payment method and this platform should send payment to my account with crypto looking suggestions and prices for integration with little explanation about it

    $204 (Avg Bid)
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    11 bids

    Build a Bitcoin mining pool for ASIC miners. (Also may be using various other coins) Website showing block mined and dashboard showing the hashrate of the miners. Payout method should be PPLNS and FPPS with different fees.

    $384 (Avg Bid)
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    12 bids

    Looking for a blockchain expert that is knowledgeable about crypto & blockchain in the area of, development, design, and product management. We are looking for a technical lead who is an ardent fan of building products and solutions that solve keys problems

    $1383 (Avg Bid)
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    14 bids
    Coin listen 3 days left

    I need profession person for coin listen, i dont know anything about it but i want to have my own coin, So, any seller that can explain before we talk about cost can come in Regards.

    $477 (Avg Bid)
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    11 bids

    I want someone to add my new token to stallerterm

    $507 (Avg Bid)
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    15 bids

    Hello all We need token on stellar blockchain with trading listing plz bid only if u have experience

    $201 (Avg Bid)
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    2 bids

    Hi, Developers, I hope you all are doing good. I need a Token with these features -Farms & Pools -Liquidity Lock -Referrals -NFTs Bonus For reference token check this website I exactly need like this one - [login to view URL] Please bid if you can create like the mentioned token. Regards.

    $163 (Avg Bid)
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    6 bids

    Hello, We need White-paper writer for our client to write and design white-paper or lite-paper of their Crypto BSC token. Best Regard's

    $94 (Avg Bid)
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    6 bids
    arbitrage crypto trading 3 days left
    VERIFIED

    Innovative ways, ideas and structure to make profit from price differences on different cryptocurrency exchanges in different countries on cryptocurrency platform via binance, kraken pro and others. Depending on the specific fiat currency pair, or crypto assets or specialize in the practice of taking advantage of a price difference between two or more markets: striking a combination of matching d...

    $208 (Avg Bid)
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    9 bids

    smart-contract is able to automatically discovering, evaluating, rating, pair matching, routing,submitting for possible arbitrage opportunities then execute arbitrage between currencies, using flash loans, between multiple DEX exchanges Smart Contract for arbitrage trading between DEXs only on multiple chains or starting with MATIC,binance smart chain.. Not using centralized [login to view URL]...

    $2563 (Avg Bid)
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    9 bids
    Safemoon fork 2 days left
    VERIFIED

    x% fee auto add to the liquidity pool to lock forever when selling. y% fee auto distribute to all holders z% fee to reward Z-wallet [0x...] (for charity)

    $160 (Avg Bid)
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    17 bids

    create Blockchain/Cryptocurrency spec file

    $21 / hr (Avg Bid)
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    27 bids
    Blockchain 2 days left

    This is pre interview assignment. In this we need to create simplified blockchain according to the given file.

    $226 (Avg Bid)
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    9 bids

    I need to build mainnet based on pancakeswap testnet source code. Inbox me to discuss details.

    $267 (Avg Bid)
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    4 bids

    Build me a Crypto investment website

    $214 (Avg Bid)
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    21 bids

    Hello Developers We need bnb token on BSC scan, Please bid only if u have exp for that. We also need the api so that we can use in our existing website. The list of api are given below. 1. Address Generation of BNB token. 2. Get Balance of BNB token 3. Transfer token from one wallet to another. 4. Transfer token from main wallet(Admin) to the user wallet.

    $164 (Avg Bid)
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    2 bids
    Uniswap fork 2 days left
    VERIFIED

    Standard project, swap, pool. Details to be discussed

    $1156 (Avg Bid)
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    20 bids

    I need a crypto staking website like BlockFI

    $247 (Avg Bid)
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    4 bids

    Hello We need developer who can do the token on stellar, Dve must have full knowledge of stellar and api for that.

    $228 (Avg Bid)
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    1 bids

    Hello Developers We need bnb token on BSC scan, Please bid only if u have exp for that. We also need the api so that we can use in our existing website. The list of api are given below. 1. Address Generation of BNB token. 2. Get Balance of BNB token 3. Transfer token from one wallet to another. 4. Transfer token from main wallet(Admin) to the user wallet.

    $93 (Avg Bid)
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    2 bids
    Need lead Expert 2 days left
    VERIFIED

    We are looking for high-quality hot leads for cryptocurrency, Bitcoin, Forex.

    $3 / hr (Avg Bid)
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    12 bids

    C++ developer with knowledge in building cryptocurrencies. Should have built at least one coin based on bitcoin, monero, or EOS. Understand consensus algorithms. Thorough knowledge of the standard library, STL containers, and algorithms. Understands protocols like Tor and I2p Strong Object Oriented Design and Programming skills, hands-on application troubleshooting, and debugging skills. Experienc...

    $12 / hr (Avg Bid)
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    3 bids

    Need a tested bot with a good trade profit percentage for Binance. The following settings I need to be configurable in the bot - 1. Bot should trade on every coin we input for {Coin}/USDT 2. Please see the attached screenshot for other configuration options required Please only those freelancers contact, who have already worked on this and have a product near to the above specifications ready. ...

    $525 (Avg Bid)
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    11 bids

    We are looking to design a dapp platform that allows a basic gambling function using a designated cryptocurrency for trading.

    $8 / hr (Avg Bid)
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    4 bids
    CryptoPurchase Site -- 2 1 day left
    VERIFIED

    I need a crypto portal that will allow users to purchase crypto in real time using their debit cards/credit cards. Immediately after purchase, I want them to be able to send the crypto to any wallet of the same currency on the blockchain. This would be similar to the way you purchase crypto and withdraw it from crypto dot com website. I am ONLY interested in purchasing and withdrawing crypto in...

    $1424 (Avg Bid)
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    31 bids

    I want to build a cryptocurrency exchange platform..... I want exalty the same thing Please check chiji14xchange for more clarification.... [login to view URL]

    $553 (Avg Bid)
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    18 bids

    I want to add live crypto prices at the user dashboard on my website and also add a countdown from the time a user invest in the website till the time the investment is due for withdrawal

    $422 (Avg Bid)
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    5 bids
    Cyptocurrency Gateway API 22 hours left
    VERIFIED

    Hello. Please read this in its entirety. Don't propose and waste my time. Make it a reasonable offer. Highlight your experience and questions and any other topics you want to cover. You need to make an API (in any language such as MERN/MEAN stack, Python Flask/Django or PHP, etc) that has the ability to generate a cryptocurrency address and hold its address and private key in a secure way (...

    $648 (Avg Bid)
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    31 bids

    Looking for a coder to be able to copy/create/edit code for the creation of a smart contract for an ERC token that has ETH reflections built in. The following must be built into the smart contract: 1. We want the reflection to be in the form of ETH. 2. We want to set a holder minimum in order to qualify for the ETH reflection. 3. We want the ETH reflection to be deposited daily. 4. The token must...

    $13 / hr (Avg Bid)
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    7 bids

    I want to get Liquidity pool tokens from smart contracts. If you don't know about blockchain and ethereum, please don't bid here.

    $843 (Avg Bid)
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    8 bids
    Nft marketplace 14 hours left

    I want to develop Nft marketplace similar to opensea with full features and functionalities kindly reply with your best proposal

    $5400 (Avg Bid)
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    10 bids

    Quantower is a cryptocurrency trading platform that has an open design which allows anybody to create custom modules which integrate directly into the software. They have a package on NuGet which allows you to use Visual Studio to create these modules. Quantower API can be found here: [login to view URL] Quantower Connection API can be found here: [login to view URL] Most Recent Example of A Qu...

    $662 (Avg Bid)
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    4 bids

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