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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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    51 робіт знайдено, ціни вказані в USD
    configure front end with web integration 3 6 дні(-в) left
    ПІДТВЕРДЖЕНО

    I need to configure my project's website and the administrative psinel, please only offer if you want web integration and solid contract mainly from ethereum and binance chaim

    $25 (Avg Bid)
    $25 Сер. заявка
    2 заявки
    trading invesments 6 дні(-в) left

    I need some help with writing a contract.

    $8500 (Avg Bid)
    $8500 Сер. заявка
    2 заявки
    Asesor de blockchain y cripto monedas 6 дні(-в) left
    ПІДТВЕРДЖЕНО

    Estamos en busqueda de una persona con experiencia comprobada en proyectos con tecnologia blockchain y cripto monedas para el asesoramiento en la creacion y construccion de un proyecto. Se requiere que hable espanol fluido y pueda trabajar al menos 15 horas por semana

    $11 / hr (Avg Bid)
    $11 / hr Сер. заявка
    8 заявки
    Crypto expert required. -- 2 6 дні(-в) left
    ПІДТВЕРДЖЕНО

    Cryptocurrency Investors' Incubation & Facilitation | Crypto Trade Sqaud | [увійдіть, щоб побачити URL] We require 50,000 Paid Subscriptions on a Facebook Group [увійдіть, щоб побачити URL], that would provide investment signals for different cryptocurrencies. Each subscription would cost $10 and would need to be done on the client's website i.e [увійдіть, щоб побачити URL] After th...

    $500 (Avg Bid)
    $500 Сер. заявка
    2 заявки
    Cryptocurrency Expert for MetaMask & Trust Wallet 6 дні(-в) left
    ПІДТВЕРДЖЕНО

    Hello, I have a cryptocurrency token deployed on the Binance Smart Chain called the SOWL Token. I am looking for someone who can help me do the simple and quick tasks with my token: 1. Get my token logo and information updated on the MetaMask App 2. Get my token logo and information updated on the TrustWallet App 3. Get my token logo and information updated on the BSCScan website Currently, when...

    $135 (Avg Bid)
    $135 Сер. заявка
    14 заявки
    backend development 6 дні(-в) left

    Please only apply if you feel comfortable that those requirements fit your skills and experience: • Software development and maintenance (enhancement, changes, bugs fixing, tests development) • implementing Customer Reviews • Perform automated API Tests • broad understanding of blockchain mechanics This will be a re-occuring contract on a monthly basis. Budget is set to pa...

    $455 (Avg Bid)
    $455 Сер. заявка
    1 заявки

    I have a mp3 soundtrack that I would like someone to make a sick bassline for.

    $273 (Avg Bid)
    $273 Сер. заявка
    36 заявки

    We are a new company of young people trying to contribute to the blockchain community. We need professional people in blockchain and programming

    $250 - $750
    $250 - $750
    0 заявки
    Crypto currency AIO 6 дні(-в) left
    ПІДТВЕРДЖЕНО

    Creation of a fully developed cryptocurrency coin based on dogecoin, blockchain, wallet, smart contract, exchange, send receive, payment option, website for admin and user panel, white paper and if I have missed please add.

    $979 (Avg Bid)
    $979 Сер. заявка
    29 заявки

    We are looking for capable developer to develop a simple program, with the feature to send demo transactions To the BTC valid wallet. All we need is for the transaction to be shown in receiver's wallet, 1-It is necessary to show the transaction in the my friend wallet. 2-Transaction should be transferable from first wallet to next person's wallet (as per normal mechanism of Bitcoin. T...

    $1222 (Avg Bid)
    $1222 Сер. заявка
    24 заявки
    Cryptocurrency Centralized Exchange 6 дні(-в) left
    ПІДТВЕРДЖЕНО

    We are a new company of young people trying to contribute to the blockchain community. We need professional people in blockchain and programming

    $12 / hr (Avg Bid)
    $12 / hr Сер. заявка
    22 заявки
    trading on decentralized exchanges Dex's with flash loans 6 дні(-в) left
    ПІДТВЕРДЖЕНО

    I'm looking for the right and best arbitrage strategy with taking flash loans to help out .

    $45 / hr (Avg Bid)
    $45 / hr Сер. заявка
    20 заявки
    Crowdfunding expert for crypto project token sale 6 дні(-в) left
    ПІДТВЕРДЖЕНО

    hi,our project is about P2P crypto trading and will have many more specific features than current mainstream sites. we traded a lot and know too many painpoints for such industry. If you have successful experience on running BLOCKCHAIN projects on Crowdfunding platforms,please contact me. We already created BEP20 token and launched crowdfunding website. Main crowdfunding platforms:indiegogo,cr...

    $231 (Avg Bid)
    $231 Сер. заявка
    6 заявки

    I need you to make a list of launchpads to raise funds, then I will give you a filled form that I completed myself and you just copy those values to all application forms on launchpads. The task is very simple just copy-paste text. If some fields are missing - just message me I can provide the text to paste in.

    $3 / hr (Avg Bid)
    $3 / hr Сер. заявка
    3 заявки
    Connect my website to remote bitcoin node by JSON RPC 6 дні(-в) left
    ПІДТВЕРДЖЕНО

    Connect my website to remote bitcoin node by JSON RPC. The site is build and the node is downloaded, but i cant figure out the error. Thanks in advance.

    $20 / hr (Avg Bid)
    $20 / hr Сер. заявка
    22 заявки
    Blockchain, Solidity Expert Consultant & Programmer 6 дні(-в) left
    ПІДТВЕРДЖЕНО

    Hello, I am looking for a blockchain and solidity expert. Task: Build/code a AMM arbitrage bot for Pancakeswap and Mdex via a private smart contract. Be able to advise on improvements in speed of execution, Gas fee usage etc. The bot should arbitrage Pancake vs Mdex and if a transaction is not successful then it should roll back the transaction where we only pay fees. You also have to be able to ...

    $1230 (Avg Bid)
    $1230 Сер. заявка
    34 заявки

    Front-end UI - (Pools, Staking, Claiming, Compounding) Back-end: Smart contracts (Native Token, Farm Contract, Staking, Pool) The native token will be a modification of an already existing BSC token (Reflection, Tax, Auto-liquidity generation, Anti-Bot, Anti-Whale) The native token will include front-end UI to claim or compound. (Feature is already available in the existing project to be cloned...

    $1420 (Avg Bid)
    $1420 Сер. заявка
    31 заявки

    Seeking writers to produce several 1500-word articles/week on assigned cryptocurrency topics on an ongoing basis. These are intended for laymen audiences, but some knowledge of cryptocurrency and a reasonably strong technical background will likely be required to effectively extract relevant details from marketing hype.

    $62 (Avg Bid)
    $62 Сер. заявка
    33 заявки
    Integrate wallet connect to my website -- 2 5 дні(-в) left
    ПІДТВЕРДЖЕНО

    Integrate walletconnect to my website So it works on mobile phones and people can connect their metamask and trustwallet to the website.

    $250 (Avg Bid)
    $250 Сер. заявка
    2 заявки
    Trophy icon Crypto Re-search Project 1 день left

    Research that finds me the top 3 coins that have had a really big price dip in the past months. Coin must be in the top 500. 1) Give me a description of the project 2) Let me know the percentage in price that its dropped. 3) Find me a really great video of someone talking about the coin and what it will do

    $51 (Avg Bid)
    Гарантований Прихований
    $51
    6 робіт
    Blockchain/Smart Contracts Development 5 дні(-в) left
    ПІДТВЕРДЖЕНО

    hello, we need smart contracts that we can use to swap for our project. (BEP-20, TRC-20, ERC-20) formats. If you can work on this, please provide feedback.

    $370 (Avg Bid)
    $370 Сер. заявка
    9 заявки

    I am running a presale website, on laptop metamask plugin get connected and it works, but on mobile phone extensions don't work so for that, I want to integrate the wallet connect.

    $131 (Avg Bid)
    $131 Сер. заявка
    10 заявки
    Build Crypto Wallet App in Flutter 5 дні(-в) left
    ПІДТВЕРДЖЕНО

    Hey coders, I want to build a Crypto wallet app in flutter where users can deposit their any coin or token and withdraw. I want all standard features as Luno, Crypto wallet app does. Features & Conditions : 1. Any coin and token including Bitcoin, XRP, ETH, ERC token and BEP token deposit and withdraw 2. Other standard features as luno or safemoon wallet app. 3. Timeline 7 days 4. You need...

    $688 (Avg Bid)
    $688 Сер. заявка
    25 заявки

    I am looking for a developer who can develop Blockchain BITCOIN & ETHEREUM Flashing software. With this software I will be able to do the following; 1. Should be able to work and upload with a bitcoin wallet having zero current balance. 2. Any uploaded bitcoins should be transferable up to five wallets (wallet to wallet). 3. The uploaded bitcoins should be able to remain visible in any wal...

    $1183 (Avg Bid)
    $1183 Сер. заявка
    11 заявки
    Create Smart contract - token (300$) 4 дні(-в) left
    ПІДТВЕРДЖЕНО

    Deploy test net : 150$ Deploy mainnet : 150$ Binance Smart chain

    $364 (Avg Bid)
    $364 Сер. заявка
    47 заявки

    A FEW HOURS OF WORK ARE NEEDED. I need a website similar to [увійдіть, щоб побачити URL] but with more features. Before awarding this project to you, you should be ready to answer questions related to blockchain, Cryptocurrency, swap, Binance blocks and liquidity. Please type "SIBA" without quotes, so that you will be a qualified bidder to be awarded. If successful, more projects will b...

    $170 (Avg Bid)
    $170 Сер. заявка
    13 заявки
    Blockchain presentation 4 дні(-в) left

    We are a young startup and educate people in blockchain and crypto online. For this we need professional support for the creation of various presentations. The content has already been developed. We are looking forward to your feedback. Best regards Oliver & Ronny

    $650 (Avg Bid)
    $650 Сер. заявка
    21 заявки
    Build a crypto wallet application 4 дні(-в) left
    ПІДТВЕРДЖЕНО

    I need someone to build a Crypto wallet app for the user's portfolio. You should have experience of this work.

    $781 (Avg Bid)
    $781 Сер. заявка
    8 заявки
    pancakeswap liquidity 4 дні(-в) left
    ПІДТВЕРДЖЕНО

    pancakeswap liquidity expert needed

    $168 (Avg Bid)
    $168 Сер. заявка
    8 заявки

    Need a blockchain dev to make a separate staking dapp on my site

    $147 (Avg Bid)
    $147 Сер. заявка
    8 заявки
    Build with me a blockchain 4 дні(-в) left
    ПІДТВЕРДЖЕНО

    i had build more by myself some blockchain same Litecoin, Dogecoin. now i want build same TRX and make smartcontract....Defi i will test you build before apply this project. it need more part to do. each part with another price

    $163 (Avg Bid)
    $163 Сер. заявка
    13 заявки

    I have my family photos in a screensaver that was custom made for me a few years ago. After accidentally formatting my hard drive a few months ago, I managed to find this screensaver on a CD. I would like someone to extract the JPEG pictures from it so that I could print them into my photo album. Thanks

    $312 (Avg Bid)
    $312 Сер. заявка
    9 заявки
    Проект блокчейн 4 дні(-в) left
    ПІДТВЕРДЖЕНО

    Нужна разработать блокчейн платформу. Задача в приложении, скачайте и ознакомьтесь пожалуйста. Стек кастомная библиотека polkadot, ink, grandpa, и язык rust в основном.

    $750 - $1500
    Прихований
    $750 - $1500
    7 заявки
    Build a crypto wallet 3 дні(-в) left
    ПІДТВЕРДЖЕНО

    I need someone to build a Crypto wallet for the user's portfolio. You should have experience of this work.

    $802 (Avg Bid)
    $802 Сер. заявка
    18 заявки
    Add token icon & price in trust wallet 3 дні(-в) left
    ПІДТВЕРДЖЕНО

    Hello there, I have a Crypto token made on BSC, I need to add a token icon + token price in the trust wallet. Only experienced Thank you!

    $102 (Avg Bid)
    $102 Сер. заявка
    3 заявки
    Defi marketing, blockchain app marketing 3 дні(-в) left
    ПІДТВЕРДЖЕНО

    Hello, we have a big tech team of very experienced blockchain engineers that worked on lots of cutting-edge Defi startups on Binance Smart Chain, Polygon, and Ethereum. We need a strong marketing guy or a team of marketers with whom we can create a whole bunch of DeFi/Crypto projects. Requirements: - scale telegram groups with real members, no bots, no random people - access to legit networks o...

    $8300 (Avg Bid)
    $8300 Сер. заявка
    10 заявки

    I have my family photos in a screensaver that was custom made for me a few years ago. After accidentally formatting my hard drive a few months ago, I managed to find this screensaver on a CD. I would like someone to extract the JPEG pictures from it so that I could print them into my photo album. Thanks

    $403 (Avg Bid)
    $403 Сер. заявка
    11 заявки
    Fork Tornado cash 3 дні(-в) left
    ПІДТВЕРДЖЕНО

    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. A simple UI to deposit and retrieve functions already exist in the github. You can use that. This use zk snark protocol, so if you reall...

    $1403 (Avg Bid)
    $1403 Сер. заявка
    28 заявки
    Looking for Crypto project introducing brokers(IB) 3 дні(-в) left
    ПІДТВЕРДЖЕНО

    Our token private sale will start soon. We are seeking affiliate who have wide network with potential clients(token investment,ICO,token sale,crowdfunding,token sale leads) We are not simply buliding a better P2P crypto exchange,we have flexible exit plan by SPAC for investors. We will provice introducing brokers(IB)with competitive commission plus our token as bonus. Requirement [увійдіть, щ...

    $96 (Avg Bid)
    $96 Сер. заявка
    5 заявки
    I need a new website. 2 дні(-в) left
    ПІДТВЕРДЖЕНО

    Looking to develop [увійдіть, щоб побачити URL] clone

    $941 (Avg Bid)
    $941 Сер. заявка
    12 заявки
    Looking for a Korean citizen to validate information -- 3 1 день left
    ПІДТВЕРДЖЕНО

    **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.

    $296 (Avg Bid)
    $296 Сер. заявка
    3 заявки
    Configure ASIC miner 1 день left

    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?

    $32 (Avg Bid)
    $32 Сер. заявка
    2 заявки

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

    $137 (Avg Bid)
    $137 Сер. заявка
    5 заявки
    Similar like coinpayments 1 день left
    ПІДТВЕРДЖЕНО

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

    $1187 (Avg Bid)
    $1187 Сер. заявка
    6 заявки

    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
    Прихований Угода про нерозголошення
    $10 - $750
    3 заявки
    Crypto Gambling Website 22 годин(-и) left

    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 ...

    $56481 (Avg Bid)
    Угода про нерозголошення
    $56481 Сер. заявка
    41 заявки

    Looking for someone who can add wallet to existing site.

    $116 (Avg Bid)
    $116 Сер. заявка
    6 заявки

    Требуется разработать страницу смарт алгоритма торговли на крито бирже (роботы). Работаем на Бинанс. Необходимо забирать статистику по АПИ и транслировать ее в ЛК инвестора. Пока только спотовая торговля. В дальнейшем расширение данного направления в том числе портал для копи-трейдинга. По смарт алгоритму также партнёрская программа. В маркетинге участвует сумма за покупку лицензии на алгор...

    $1500 - $3000
    Прихований
    $1500 - $3000
    4 заявки
    Проект blockchain -- 2 4 годин(-и) left
    ПІДТВЕРДЖЕНО

    Нужна разработка блокчейн платформы. Задача в приложении, скачайте и ознакомьтесь пожалуйста. Стек кастомная библиотека polkadot, ink, grandpa, и язык rust в основном.

    $750 - $1500
    Прихований
    $750 - $1500
    1 заявки

    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
    Прихований Угода про нерозголошення
    $10 - $750
    4 заявки