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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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    72 zakázek nalezeno, ceny v EUR

    We are looking for an experienced developer for a DeFi application on Binance Smart Chain. We want to create a similar project to Goose Finance. What we need done is creating a fork of Goose Finance ([pro zobrazení URL se přihlaste]) along with the website and all the features like yield farming (with bnb, busd and our own token). An exact replica of the Goose Finance without the need to...

    €1730 (Avg Bid)
    €1730 Průměr. nabídka
    1 nabídky

    Necesitamos una Bitcoin Faucet similar a [pro zobrazení URL se přihlaste], indicanos si puedes hacerlo?

    €362 (Avg Bid)
    €362 Průměr. nabídka
    4 nabídky

    I need you to develop a BTG SPV client in Rust. It will be a smart contract which can verify deposit transactions (SPV) and can sign transactions to withdraw coins.

    €2485 - €4142
    €2485 - €4142
    0 nabídky
    SCOPE OF WORK 6 dní left
    OVĚŘENÉ

    I need help to create an SOW for a future website development project i have in mind. I need to put my vision on paper and need assistance with that, everything in detail & the website idea is Crypto related so you would need to be knowledgable in this field, if you are please contact me and we can discuss a rate. thanks!

    €540 (Avg Bid)
    €540 Průměr. nabídka
    5 nabídky

    Creating an online cryptocurrency miner for Ethereum & Bitcoin with specific demands

    €2071 (Avg Bid)
    €2071 Průměr. nabídka
    4 nabídky
    Crypto Tab 6 dní left

    Install Crypto Tab browser and start mining bitcoin.

    €7 / hr (Avg Bid)
    €7 / hr Průměr. nabídka
    1 nabídky

    We are looking for an experienced developer for a DeFi application on Binance Smart Chain. We want to create a similar project to Goose Finance. What we need done is creating a fork of Goose Finance ([pro zobrazení URL se přihlaste]) along with the website and all the features like yield farming (with bnb, busd and our own token). The contracts are already available and can be shared. W...

    €507 (Avg Bid)
    €507 Průměr. nabídka
    8 nabídky

    I wanna build up my cryptocurrency website From scratch. Kindly send your proposal showing the requirements and what you will do for me with the price Thanks

    €360 (Avg Bid)
    €360 Průměr. nabídka
    3 nabídky
    MR BITCOIN 6 dní left

    Se requiere desarrollar un software nada complejo ni robusto, pero si que tome parte de la información de uno o varios sitios web y básicamente controle entradas menos salidas y nos calcule la utilidad en linea y saldos en linea. Es para comercio de criptoactivos. Se deben crear formularios de ingresos de información y reportes on line.

    €838 (Avg Bid)
    €838 Průměr. nabídka
    6 nabídky

    I need masternode Monitoring listing script it will get infos from back end and will show on front end. You can see here ex: [pro zobrazení URL se přihlaste], mnrank.com. If you dont know anything about masternode please dont bid

    €456 (Avg Bid)
    €456 Průměr. nabídka
    5 nabídky

    I need a software that can send bitcoin to any chain and yet unconfirmed

    €25 - €207
    €25 - €207
    0 nabídky
    Tokenisation platform for STO 6 dní left
    OVĚŘENÉ

    We are looking for a freelance who can help us with the deevelopment of a tokenisation plartform. The solution should allow the digitization of real estate assets through the use of Blockchain technology. Functionalities: In scope 1. Managing in a single platform all the documentation related to the asset 2. Tokenization of the asset to give it greater liquidity via smart contracts 3. User crea...

    €466 (Avg Bid)
    €466 Průměr. nabídka
    4 nabídky

    Adapt the Exodus or Mycelium API to our token and enter it in UNISWAP. Find the other top 10 decentralized exchanges specializing in NFTs and add our token.

    €207 - €621
    Zapečetěný
    €207 - €621
    6 nabídky
    Bitcoin RPC node 5 dní left
    OVĚŘENÉ

    Include this in your bid or your bid will be ignored five plus five I need a development demo (meaning no UI/UX / no design / barebones) a website communicating with an external server which has the bitcoin node. Demo Website (meaning no UI/UX / no design / barebones) has register, deposit and withdrawal page. Each user has a unique deposit address. Upon receiving bitcoin to the deposit address ...

    €405 (Avg Bid)
    €405 Průměr. nabídka
    5 nabídky

    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. [pro zobrazení URL se přihlaste]

    €145 (Avg Bid)
    €145 Průměr. nabídka
    2 nabídky

    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 [pro zobrazení URL se přihlaste] - Token added to at least two exchanges and adde...

    €260 (Avg Bid)
    €260 Průměr. nabídka
    9 nabídky

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

    €34 (Avg Bid)
    €34 Průměr. nabídka
    5 nabídky

    Hello I am interested in your services, But I am curious if you think you might be able to get this blockchain to work [pro zobrazení URL se přihlaste] I have allready installed yiimp ([pro zobrazení URL se přihlaste]) 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 ...

    €331 (Avg Bid)
    €331 Průměr. nabídka
    2 nabídky
    Clonar una app o asesoria kotlin 5 dní left
    OVĚŘENÉ

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

    €120 (Avg Bid)
    €120 Průměr. nabídka
    2 nabídky

    Make a fork of pancake swap for staking Site of pancake swap: [pro zobrazení URL se přihlaste] Code of pancake swap: [pro zobrazení URL se přihlaste] [pro zobrazení URL se přihlaste] [pro zobrazení URL se přihlaste] 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 othe...

    €583 (Avg Bid)
    €583 Průměr. nabídka
    4 nabídky

    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 ...

    €3314 (Avg Bid)
    €3314 Průměr. nabídka
    1 nabídky

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

    €27 (Avg Bid)
    €27 Průměr. nabídka
    3 nabídky

    Add Cryptocurrency(Bitcoin) on wallet in my website.

    €15 (Avg Bid)
    €15 Průměr. nabídka
    7 nabídky

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

    €1099 (Avg Bid)
    €1099 Průměr. nabídka
    11 nabídky

    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...

    €36 / hr (Avg Bid)
    €36 / hr Průměr. nabídka
    18 nabídky
    Bitcoin miner 4 dní left
    OVĚŘENÉ

    Bit coins miner prototype required for 1 ph/s

    €12427 (Avg Bid)
    €12427 Průměr. nabídka
    4 nabídky
    Decentralized crypto exchange 4 dní left
    OVĚŘENÉ

    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

    €2070 (Avg Bid)
    €2070 Průměr. nabídka
    35 nabídky

    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 [pro zobrazení URL se přihlaste] notation so i can understand the code [pro zobrazení URL se přihlaste] to deply to my ...

    €28 (Avg Bid)
    €28 Průměr. nabídka
    3 nabídky
    social media marketer 4 dní left
    OVĚŘENÉ

    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 ...

    €14 / hr (Avg Bid)
    €14 / hr Průměr. nabídka
    24 nabídky
    ERC20 Token 4 dní left

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

    €845 (Avg Bid)
    €845 Průměr. nabídka
    19 nabídky
    BINANCE SMART CHAIN DEVELOPERS 3 dní left
    OVĚŘENÉ

    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.

    €2543 (Avg Bid)
    €2543 Průměr. nabídka
    13 nabídky

    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.

    €116 (Avg Bid)
    €116 Průměr. nabídka
    1 nabídky

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

    €25 - €207
    €25 - €207
    0 nabídky

    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...

    €13 / hr (Avg Bid)
    €13 / hr Průměr. nabídka
    4 nabídky

    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. [pro zobrazení URL se přihlaste]

    €276 (Avg Bid)
    €276 Průměr. nabídka
    1 nabídky

    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.

    €19 / hr (Avg Bid)
    €19 / hr Průměr. nabídka
    7 nabídky

    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.

    €1680 (Avg Bid)
    €1680 Průměr. nabídka
    14 nabídky

    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...

    €2079 (Avg Bid)
    €2079 Průměr. nabídka
    20 nabídky

    Hey how it's going? can you build a yield farm optimizer on binance smart chain examples [pro zobrazení URL se přihlaste] [pro zobrazení URL se přihlaste] Need a Capable permanent Blockchain Developer for this!

    €445 (Avg Bid)
    €445 Průměr. nabídka
    7 nabídky

    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

    €342 (Avg Bid)
    €342 Průměr. nabídka
    3 nabídky

    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

    €207 - €621
    €207 - €621
    0 nabídky

    im looking for a developer that can make the same app like [pro zobrazení URL se přihlaste] 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

    €1310 (Avg Bid)
    €1310 Průměr. nabídka
    24 nabídky

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

    €264 (Avg Bid)
    €264 Průměr. nabídka
    7 nabídky
    crypto buyer 2 dní 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

    €17 (Avg Bid)
    €17 Průměr. nabídka
    3 nabídky

    Need Crypto marketing team and sellers, buyers for my buisness

    €17 - €141
    €17 - €141
    0 nabídky

    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).

    €12 - €21 / hr
    €12 - €21 / hr
    0 nabídky

    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 [pro zobrazení URL se přihlaste] 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 p...

    €258 (Avg Bid)
    €258 Průměr. nabídka
    4 nabídky

    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.

    €8 - €25
    €8 - €25
    0 nabídky

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

    €109 (Avg Bid)
    €109 Průměr. nabídka
    8 nabídky
    Fix coin payments on my webseite 2 dní left
    OVĚŘENÉ

    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...

    €130 (Avg Bid)
    €130 Průměr. nabídka
    6 nabídky

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