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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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    69 trabajados encontrados, precios en USD
    Clonar una app o asesoria kotlin 6 días left
    VERIFICADO

    Tenemos una wallet que queremos hacer un fork y necesitamos una asesoria de kotlin con personas que hablen 100% español nativo

    $40 (Avg Bid)
    $40 Oferta promedio
    1 ofertas

    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)
    $23 Oferta promedio
    3 ofertas

    Please don't submit a bid then ask what my budget is for the project. Your bid is my budget. What I need is the following. 1. Crypto currency on the ethereum blockchain. 2. Mobile wallet android and ios. 3. Desk top wallet Linux window and Mac. 4. Merchant app for retail and online shops. 5. Decentralised exchange listing. 6. Website for coin info and selling can be Shopify. Proof of stake ...

    $2262 (Avg Bid)
    $2262 Oferta promedio
    8 ofertas

    I have a FX wallet for btc with a Craxid Delic report and need in to be interested to know its strength and test whether it has enough matrices for withdrawals. [iniciar sesión para ver URL]

    $175 (Avg Bid)
    $175 Oferta promedio
    2 ofertas

    We are looking for someone to help take our Token to the next level. We currently have a dev team building our network and completing our website. We would like to have our token public profile updated and Token application for all exchanges and etherscan info updated. Major goals -- - Token info updated on [iniciar sesión para ver URL] - Token added to at least two exchanges and added t...

    $311 (Avg Bid)
    $311 Oferta promedio
    7 ofertas
    Build a blockchain NFT tracker 6 días left
    VERIFICADO

    We are looking for a blockchain developer to build a Non-Fungible Tokens (ERC-721) tracker, a sort of blockchain explorer. Specifically, we want to track the sales of the NFT called "NBA Top Shot" ([iniciar sesión para ver URL]). To do so, you will have to access the Flow Network using their API ([iniciar sesión para ver URL]). We are looking to build something similar to ...

    $14 / hr (Avg Bid)
    $14 / hr Oferta promedio
    4 ofertas

    Add Cryptocurrency(Bitcoin) on wallet in my website made in PHP.

    $41 (Avg Bid)
    $41 Oferta promedio
    5 ofertas

    Hello I am interested in your services, But I am curious if you think you might be able to get this blockchain to work [iniciar sesión para ver URL] I have allready installed yiimp ([iniciar sesión para ver URL]) but I have no idea how to get the daemon to talk to the rpc server, no matter how I write the config for the node, nothing works. If you can help me figure this out I will...

    $300 (Avg Bid)
    $300 Oferta promedio
    1 ofertas

    Make a fork of pancake swap for staking 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: bnb, busd, usdt, eth. and receving as reward our token. or put in stake our token and receive other our token ...

    $704 (Avg Bid)
    $704 Oferta promedio
    4 ofertas

    Our server wrote 2 private keys from 2 btc wallets wrong. They got the same number of characters and start both with the same character 'y'. The script in the attachment made the btc wallet number with private key, as you can see had to be updated sooner. btc key: 178ukYnmXtfDrVvBGBqvRss9msMuZmYfFc private key: ygDx2pqAamuuyCZE5bV3GStik5ZWiioPwiHyFm6FWPmjq4tUv Solve this one and get ...

    $4000 (Avg Bid)
    $4000 Oferta promedio
    1 ofertas

    Add Cryptocurrency(Bitcoin) on wallet in my website made in PHP.

    $32 (Avg Bid)
    $32 Oferta promedio
    3 ofertas

    Add Cryptocurrency(Bitcoin) on wallet in my website.

    $18 (Avg Bid)
    $18 Oferta promedio
    7 ofertas

    Hello i need someone or a team to make Web3 wallet on Tron network for chrome and firefox

    $1326 (Avg Bid)
    $1326 Oferta promedio
    11 ofertas

    FlareNetworks is brining smart contracts and DeFi to the XRP Ledger and we'd like to be a part of it as a Flare Time Series Oracle Signal Provider as well as hosting an XRPL Validator. This will be ongoing work on launching new products, and even utilizing Ava Labs AVAX Network to launch decentralized finance applications on to FlareNetworks. This will include building front-end as well as b...

    $44 / hr (Avg Bid)
    $44 / hr Oferta promedio
    17 ofertas
    Bitcoin miner 5 días left
    VERIFICADO

    Bit coins miner prototype required for 1 ph/s

    $15000 (Avg Bid)
    $15000 Oferta promedio
    4 ofertas
    Decentralized crypto exchange 5 días left
    VERIFICADO

    wyretrade is seeking a team of blockchain developers who can developed a non custodial decentralized exchange to exchange ETH and different ERC20 tokens instantly – no waiting and no registration needed. users will simply connect their wallets and swap their tokens instantly while wyretoken a native asset of wyretrade is used as a gas fees in the network. thanks

    $2506 (Avg Bid)
    $2506 Oferta promedio
    34 ofertas

    My daughter need to analyst the block chain transaction for a define period of time. I need a script to save the data into mysql. A complete project would need following 1.a script that save all the transactions of a define block chain at a define period into mysql [iniciar sesión para ver URL] notation so i can understand the code [iniciar sesión para ver URL] to deply to my share ...

    $33 (Avg Bid)
    $33 Oferta promedio
    2 ofertas
    social media marketer 5 días left
    VERIFICADO

    Top UK based agency requires a social media marketer No copy/paste applications will be considered Job Requirements: - Excellent English only with fabulous grammar and high attention to detail - Proven experience in SMM of at least 5 years - Understanding of cryptocurrency terms and concepts - Excellent communication skills & ability to work productively and efficiently - Which tools do you ...

    $17 / hr (Avg Bid)
    $17 / hr Oferta promedio
    24 ofertas
    ERC20 Token 5 días left

    Hello i looking for someone who can create a token as erc20

    $1038 (Avg Bid)
    $1038 Oferta promedio
    18 ofertas
    BINANCE SMART CHAIN DEVELOPERS 5 días left
    VERIFICADO

    Looking to hire experienced smart contract developers who can work with the binance smart chain. Will be working on a NFT based platform. Please only APPLY if you have experience.

    $3070 (Avg Bid)
    $3070 Oferta promedio
    13 ofertas

    I need a prototype for a system which uses Proof of Authority - AURA(Authority Round) to implement E-voting. A simple prototype and 4-5 graphs to discuss its performance.

    $140 (Avg Bid)
    $140 Oferta promedio
    1 ofertas

    Need Computer Engineers and IT Engineers to build a "Mining_282.024.157.022-binance_server.com-3333-P" for me.

    $30 - $250
    $30 - $250
    0 ofertas

    Need expert React Native + node.js developer with 2-3 years experience on an hourly basis to complete an app that is almost finished. You must have experience with 1. Managing Bitcoin non-custodial wallets 2. Show notification upon receiving BTC in wallet You must be ready to: 1. Show your previous experience which is relevant 2. Work online using screen sharing If you do not have previous str...

    $16 / hr (Avg Bid)
    $16 / hr Oferta promedio
    4 ofertas

    I have a FX wallet for btc with a Craxid Delic report and need in to be interested to know its strength and test whether it has enough matrices for withdrawals. [iniciar sesión para ver URL]

    $30 - $250
    $30 - $250
    0 ofertas

    More than 5 years in development world. I developed a bot to automate the buy/sell trading of major cryptocurrencies, based on an algorithm I studied. Looking for cryptocurrencies users to test my automation test and give me a feedback.

    $23 / hr (Avg Bid)
    $23 / hr Oferta promedio
    7 ofertas

    We need the person who can manage our workers salaries online which we hired in other countries where famous payment method not supported we will fund your account and provide you the list of our employees Emails than send them with the option MAKE A PAYMENT.

    $2028 (Avg Bid)
    $2028 Oferta promedio
    14 ofertas

    We are looking to build a cryptocurrency trading app that will allow the following Real time charts & Price updates from exchanges (Binance/Bitfinex) Price alerts Watchlist integration Users should be able to trade and place orders on the app directly to their Bitfinex/Binance account (more exchanges in the future) We want to be able to add some premium services too on additional pages, l...

    $2509 (Avg Bid)
    $2509 Oferta promedio
    20 ofertas

    Hey how it's going? can you build a yield farm optimizer on binance smart chain examples [iniciar sesión para ver URL] [iniciar sesión para ver URL] Need a Capable permanent Blockchain Developer for this!

    $537 (Avg Bid)
    $537 Oferta promedio
    7 ofertas

    I'm looking for a full stack developer for my blockchain based project. you need to work on smart contract and help our other team members in developing the product, you would be our senior developer / CTO. you would be mentioned on our website as the same. must have linkedin

    $413 (Avg Bid)
    $413 Oferta promedio
    3 ofertas

    The TokenBridge is deployed on specified validator nodes (only nodes whose private keys correspond to addresses specified in the smart contracts) in the network. It connects to two chains via a Remote Procedure Call (RPC) and is responsible for: listening to events related to bridge contracts sending transactions to authorize asset transfers

    $250 - $750
    $250 - $750
    0 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

    $1581 (Avg Bid)
    $1581 Oferta promedio
    24 ofertas
    coin developement 4 días left

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

    $319 (Avg Bid)
    $319 Oferta promedio
    7 ofertas
    crypto buyer 4 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 want you to create my own bot for trading crypto on bybit (API) using a simple RSI strategy. The bot must be able to do the following: 1) Margin trading, having the capability of taking long and short positions based on the RSI values. 2) Need to calculate RSI based on the websocket data and should match the RSI on bybit. The calculations should be done for a 3 minute interval. 3) A stoploss ...

    $216 (Avg Bid)
    $216 Oferta promedio
    3 ofertas

    Need Crypto marketing team and sellers, buyers for my buisness

    $23 (Avg Bid)
    $23 Oferta promedio
    1 ofertas

    We're looking for a developer who can create an application with which we can flash Bitcoin,Ethereum to wallet & get 3 confirmation needed and The uploaded bitcoins should be able to remain visible in any wallet(s) for a minimum of 90 days 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.

    $131 (Avg Bid)
    $131 Oferta promedio
    8 ofertas
    Fix coin payments on my webseite 4 días left
    VERIFICADO

    Hi, I have a problem integrating bitcoin litecoin and monero payments in my multi vendor bitcoin market. It runs on a VPS and access will be possible via Putty. I would like these problems to be resolved and Bitcoin, LiteCoin and Monero payments to be possible and everything to work properly. and I want to be paid $ 250 for the seller bond and that a new bitcoin address is automatically genera...

    $157 (Avg Bid)
    $157 Oferta promedio
    6 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
    Criação de contrato ERC20 3 días left
    VERIFICADO

    Criação de um token com segurança adequada

    $1299 (Avg Bid)
    $1299 Oferta promedio
    2 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 3 días left
    VERIFICADO

    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
    19 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 2 días left
    VERIFICADO

    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

    $30 (Avg Bid)
    $30 Oferta promedio
    1 ofertas

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

    $8786 (Avg Bid)
    $8786 Oferta promedio
    14 ofertas

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

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

    Principales artículos de la comunidad Bitcoin