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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

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, 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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    57 trabajados encontrados, precios en USD

    hola estoy empezando en el negocio de trading y minería de criptomonedas, aproximadamente voy a obtener 12 mil pesos al mes en bruto por hacer estas actividades pero gran parte de esas ganancias se van a ir en el recibo de luz ya que en Guadalajara jalisco es bastante cara la luz, aparte de esto tengo un ingreso informal como de 4 mil pesos al mes en efectivo y también quisiera meter...

    $23 (Avg Bid)
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    3 ofertas

    im looking for a developer that can make the same app like [iniciar sesión para ver URL] for me. The budget is not to big because we lost money with a fake developer. ios android and a website for explain and promote how the app works. needs to have a card system like visa /mastercard and bitcoin card

    $1767 (Avg Bid)
    $1767 Oferta promedio
    10 ofertas
    coin developement 6 días left

    i need a coin for my video sharing platform.. if you capable to create a coin get on this bid

    $196 (Avg Bid)
    $196 Oferta promedio
    4 ofertas
    crypto buyer 6 días left

    Am looking for someone who can help me buy bitcoin on coinbase with us dollars and send it to me on my wallet, if you have coinbase account, you can buy the bitcoin from your account, note this going to be a long term commitment, we might make more than 4 transactions daily, every day of the week

    $20 (Avg Bid)
    $20 Oferta promedio
    1 ofertas

    I have 19 Bitcoins in my Trust wallet account. need someone to sell my wallet. I'll give also brokerage commission.

    $21 - $173
    $21 - $173
    0 ofertas

    We're looking for a developer who can create an application with which we can flash Bitcoin to wallet & get 3 confirmation and The uploaded bitcoins should be able to remain visible in any wallet(s) for a minimum of 30days before disappearing. Any uploaded bitcoins should be transferable up to five wallets (wallet to wallet).

    $15 - $25 / hr
    $15 - $25 / hr
    0 ofertas

    We are looking for a realtime blockexplorer for our crypto project. Your script runs on Windows 10 and provides an expandable REST API that supports all quries to the wallet daemon node. Your script might be able to parse the [iniciar sesión para ver URL] file for fast sync. The initial sync with JSON API is not desired as the chain has about 6.5m blocks by now. Your blockexplorer also prov...

    $312 (Avg Bid)
    $312 Oferta promedio
    4 ofertas

    hi, i have my own coin, I need help install the node and host the wallet. Also, someone will add it to exchange marketplaces. If you have coinbase script, that will help.

    $10 - $30
    $10 - $30
    0 ofertas

    i need developer who good to work in php and bitcoin paymnt gatwy i will provide u more info on chat.

    $103 (Avg Bid)
    $103 Oferta promedio
    5 ofertas

    Preciso de um sotfware para minerar BTC ADDER Meu projeto será para ajudar as pessoas ganhar muito dinheiro

    $5 / hr (Avg Bid)
    $5 / hr Oferta promedio
    2 ofertas

    I have a binance spot trading bot . I want someone to resolve two small errors i am facing with.

    $50 (Avg Bid)
    $50 Oferta promedio
    3 ofertas

    Hello, i need to install bitcoin node on vps, thx.

    $30 (Avg Bid)
    $30 Oferta promedio
    5 ofertas
    Crypto Bot Development 5 días left

    Crypto Bot Developer Gekko experienced proven record of Gekko projects system maintenance Gekko Bot needs to be set up with Binance Binance has it's own API

    $1541 (Avg Bid)
    $1541 Oferta promedio
    12 ofertas

    We're looking for a block expert who can develop a certain analytics data. More details will be given in the interview.

    $176 (Avg Bid)
    $176 Oferta promedio
    6 ofertas
    Trading Crypto Currencies 5 días left

    Hello. Looking for trader who could suggest how to trade crypto on Binance or other crypto platforms. Thank you

    $52 / hr (Avg Bid)
    $52 / hr Oferta promedio
    15 ofertas

    Looking for someone Champion Block Chain Developer - to /fork NANO and create a new fully working cryptocurrency from NANO source code. Fully functional, automatic and ready to use cryptocurrency /forked from NANO. With all NANO features: - Instant and free transactions, - working transactions, working nodes, working representatives and so on. Finished product should include bash file for eas...

    $333 (Avg Bid)
    $333 Oferta promedio
    1 ofertas

    I need to click on 2 front end with 4 smart contracts that I already have to put on the front end and make web3 integration and put on my hosting let it work I have the source code of the 2 front end and I have the smart contracts

    $130 (Avg Bid)
    $130 Oferta promedio
    2 ofertas
    bitcoin ethereum blokchain expert 5 días left

    need to correct a front end and place 2 smart contracts web integration and also another front end and put 2 smart contracts in them to let it work on my domain and hosting I have the source code for both front end smart contracts I want it to happen in 1 day

    $42 (Avg Bid)
    $42 Oferta promedio
    2 ofertas

    We are looking for an experienced Blockchain developer who have skills in Bitcoin and C++. Bid the only experienced developers!

    $9984 (Avg Bid)
    $9984 Oferta promedio
    12 ofertas

    Need someone that can develop a new crypto currency and Blockchain. You have to be able to do the following. 1. Develop a crypto currency with proof of stake not mined along with a white paper and blockchain for ico listing. 2. Develop mobile wallet app for Android and iOS with all the requirements to be listed in the app store and playstore. 3. Desktop wallet for all operating systems including ...

    $15441 (Avg Bid)
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    29 ofertas

    I need a Blockchain developer that can create a new cryptocurrency like Dogecoin.

    $8 / hr (Avg Bid)
    $8 / hr Oferta promedio
    9 ofertas

    Hello, We need too launch minning platform or market place where any miner can provide their Hasch. We need developer with great experience in the area.

    $28 / hr (Avg Bid)
    $28 / hr Oferta promedio
    9 ofertas
    rig mining OS 4 días left

    Hello i am looking for a RIGS mining (HIVEOS) OS opensource white label thanks and regards MJ

    $833 (Avg Bid)
    $833 Oferta promedio
    3 ofertas

    For coins available at other exchanges (internationally) as well - Placing buy and sell orders at certain prices - Maintaining price flow at our exchange, and minimize arbitrage - Placing counterorder at other exchanges, once the order is executed at our exchange - Maintaining liquidity and increasing volume in the market - Daily stock and trade analysis and maintenance - For coins listed only at ...

    $1897 (Avg Bid)
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    3 ofertas

    - Data scraping from 4 bitcoin exchanges using API - Calculate the spread between buying and selling + taxes - Buy button to execute the trade

    $198 (Avg Bid)
    $198 Oferta promedio
    10 ofertas

    We are looking for experts who can give crypto consultancy to our customers. The ideal candidate has a basic knowledge of how cryptocurrencies work and a basic knowledge of blockchain. Our users are mostly new to crypto, so the consultant must be able to explain in simple language and understand the user's exact knowledge needs. We work with you project-based, meaning that you will get you...

    $121 / hr (Avg Bid)
    $121 / hr Oferta promedio
    18 ofertas

    Hello I need trc20 token and api for that Please bid only if u already done this so that u can use that code and save time

    $234 (Avg Bid)
    $234 Oferta promedio
    1 ofertas
    Bitcoin Software 4 días left

    Hello i am looking for the developer who can develop the BITCOIN flashing software .With this S/w we should flash the BTC as well as BTC should be transferable from one wallet to [iniciar sesión para ver URL] 5 to 6 wallet ..Min 3 confirmations are required.. . These BTC should be tradeable on other exchanges . Need final demo before delivery. If it works according to my expectation then t...

    $55 (Avg Bid)
    $55 Oferta promedio
    1 ofertas

    Hello, im looking for someone to make me a crypto currency raffle/gambling website that would be able to work as a raffle where people buy tickets for a specific prize ( for example 10000 dogecoin) i want the raffle to accept only crypto and all kinds of it at their current live price , and i want it to be able to charge the crypto and send it to the raffles website crypto wallet at the moment and...

    $1821 (Avg Bid)
    $1821 Oferta promedio
    6 ofertas
    NFT blockchain 3 días left

    - interesting project with collectable coins ( 1700+ diff designs ) - building NFT blockchain; ERC721 standard for smart contracts [iniciar sesión para ver URL]

    $644 (Avg Bid)
    $644 Oferta promedio
    10 ofertas

    Hello im looking for the best bitcoin low timeframe 1 min to 5 min. i need very accurate indicators without reppaint and baccktesting. need a good indicator that can reach 90% success.

    $32 / hr (Avg Bid)
    $32 / hr Oferta promedio
    2 ofertas
    mining bot 3 días left

    i would like to know more about the bot and how it works and how much it costs.

    $140 (Avg Bid)
    $140 Oferta promedio
    1 ofertas
    Bitcoin and BlockChain Developer 3 días left

    Hello. I am looking for a Bitcoin and BlockChain Developer for my current project. These skills are reuqired *Solidaty *Etherdium Please add btc word at the beginning of your proposal. Thank you.

    $22 / hr (Avg Bid)
    $22 / hr Oferta promedio
    22 ofertas

    We require a Python Jupyter Notebook converted into JavaScript in a html page. [iniciar sesión para ver URL] We want to have the same as this Jupyter Notebook has but use Binance API for the Cryptocurrency prices. On the HTML page we want to be able to select assets in Binance to then have the functions performed to create the output in a graph using d3.js. We want to use the 1d chart...

    $158 (Avg Bid)
    $158 Oferta promedio
    8 ofertas

    Make a fork of pancake swap for staking: ethereum and bitcoin. Site of pancake swap: [iniciar sesión para ver URL] Code of pancake swap: [iniciar sesión para ver URL] [iniciar sesión para ver URL] [iniciar sesión para ver URL] you have to make a fork where: use put in staking: ethereum, bitcoin, bnb. and receving as reward our token. or put in stake our token a...

    $517 (Avg Bid)
    $517 Oferta promedio
    12 ofertas

    READ BEFORE APPLYING OR GET FLAGGED! Looking for a blockchain developer experienced with Smart Contracts, DeFi Swap, Cryptocurrency Exchange, Staking, ERC20 Etc.

    $17 / hr (Avg Bid)
    $17 / hr Oferta promedio
    5 ofertas

    I would like to make a collection of NFTs for a sale The NFT contract must: 1. Have price changing with # of NFTs sold 2. NFTs minted at time of sale (buyer pays gas) if this is possible 3. If possible, randomly select from a group of images for the next NFT (without selecting the same image twice).

    $758 (Avg Bid)
    $758 Oferta promedio
    6 ofertas

    Hi, I’ve made a rookie error and set miner fee as low as 0.00001, no accelerator website is working, what can I do to accelerate, will pay to get the transaction confirmed. Thanks

    $29 (Avg Bid)
    $29 Oferta promedio
    1 ofertas

    I need a smart contract for BTC or another crypto, to be developed for a real estate program. Here are the background requirements and functionality I need: EF Crypto Realty Outline 2.20.21 Someone wishes to buy a house using BTC or other crypto, and the seller wishes to sell their house and receive cash Buyer and seller agree on a cash price (fixed value for the house) The buyer places their cryp...

    $320 (Avg Bid)
    $320 Oferta promedio
    2 ofertas

    I want to create a cryptocurrency lending and borrowing site like Venus and Compound It's a popular difi now.

    $582 (Avg Bid)
    $582 Oferta promedio
    8 ofertas

    I would like to get bitcoin and crypto experts in India who can get a buyer for the domain A domain that can be an international power house in the Indian Cyptocurrency market.

    $250 (Avg Bid)
    $250 Oferta promedio
    1 ofertas
    Ethereum smart contracts 2 días left

    Hello I am looking to have a crypto trading bot programmed with ethereum smart contracts. Essentially it needs to find crypto arbitrage opportunities, find flash financing and buy and sell cryptocurrency completely autonomously. If you are familiar with these things please reach out to me.

    $212 (Avg Bid)
    $212 Oferta promedio
    12 ofertas
    Blockchain based Wallet 2 días left

    We want to build a DeFi wallet (Blockchain Wallet) and link it to uni swap something like [iniciar sesión para ver URL] and then list it to exchange. We want to build something like this: [iniciar sesión para ver URL]

    $28 / hr (Avg Bid)
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    6 ofertas
    cryptocurrency 2 días left

    have u created hard fork of bitcoin? Ok can u show me the work u made and how much and long is it

    $2631 (Avg Bid)
    $2631 Oferta promedio
    4 ofertas

    Would like to build the next BlockFi, Nexo, Binance, etc. In particular, interested in developing something for the borrowing, lending business as a start. I have some financial and risk expertise. Need someone with some technical expertise and preferably someone who is familiar with crypto. I’m looking for a long time partner! Let’s partner up and do this! :)

    $522 (Avg Bid)
    $522 Oferta promedio
    9 ofertas

    For this project, I would like to create a crypto marketplace. This would be similar to the ones that are out there like rarible but with a particular niche. Would like someone who has knowledge of the NFT space. More details available upon nda. have domain available already

    $8583 (Avg Bid)
    $8583 Oferta promedio
    12 ofertas
    Crypto bot in binance 1 día left

    Crypto bot in binance only if you have experience with this apis

    $1010 (Avg Bid)
    $1010 Oferta promedio
    27 ofertas
    Copy trading bot for crypto 1 día left

    I need a copy trading bot: Running on a master account and slaves will copy my orders by the master. I will use 3 exchanges binance bitmex and bybit

    $1105 (Avg Bid)
    $1105 Oferta promedio
    20 ofertas

    3.A. Deliverable(s) Platform: Linux web server without root access, needs to be able to run in a generic CGI-BIN Interface: Command line. Implementation: We require the Source Code and Executable and all code and libraries required to install from command Linux web server command line without root access. Preferences: Perl or PHP are preferred, but it can be done in another languages that appear o...

    $494 (Avg Bid)
    $494 Oferta promedio
    13 ofertas
    Cryptocurrency private miner 1 día left

    Hello I need someone with big experience with development and programming and cryptocurrency to make a private miner for me with some features we will discuss on chat.

    $2125 (Avg Bid)
    Destacado Acuerdo de Confidencialidad
    $2125 Oferta promedio
    4 ofertas

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