Bitcoin Lavori e Concorsi

You can earn money at Freelancer.com by using your bitcoin skills.

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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Progetto/Concorso Descrizione Offerte/Proposte Competenze Iniziato Termina Prezzo (EUR)
HYIP Investment Script - Crypto Looking for an expert to quickly build a typical HYIP investment site. Key requirements; (-) Cryptocurrency based HYIP It is necessary to be well acknowledge with cryptocurrency mechanism. Especially BTC. (I will tell the exact topic in chat) with some reference of HYIP sites that I demand with. ————————— The project will include the ... 0 PHP, Progettazione Siti Web, Graphic Design, jQuery / Prototype, Bitcoin Dec 16, 2017 Oggi6d 23h -
Crypto Coin Developer required (Scrypt) -- 2 - 16/12/2017 09:40 EST I want to develop a new coin with Scrypt. I will provide specification. Serious developer with previous experience apply. 1 PHP, Javascript, Linux, Programmazione C++, Bitcoin Dec 16, 2017 Oggi6d 23h -
Coinpayments Integration to current php system Hi We've a system develop on PHP, this is a Wallet, at this moment this wallet manage blockchain with xpub but we'll have problem becase each xpub onlye generate 20 bitcoin address and we'll manage a los transaction from customers So, we need integrate Coinpayments API to his wallet The API need to be 1- Generate a Bitcoin Address and show on last setp to the customer ... 7 PHP, Bitcoin, API Dec 16, 2017 Oggi6d 23h €106
eDucat - Educational Cryptocurrency The learning is an inherent value. The eDucat is about the erudition of society. The eDucat is the independent cryptocurrency #mindned by the learning process. The trust is in blockchain’s DNA. The ledger of eDucat transactions is maintaining by Nodes of all eDucat Community. The authority over which transactions are valid is entrust to the Nodes of Knowledge Centers. The eDucat Commun... 2 Architettura Software, Programmazione C++, Bitcoin, Blockchain, Ethereum Dec 16, 2017 Oggi6d 23h €44895
help me setup full and complete mining rig for Litecoin from A to Z i want someone to guide me through setting up a full mining rig and teach how to start mining Litecoin. in addition to give recommendation of what hardware i should buy. 4 Bitcoin, Ethereum Dec 16, 2017 Oggi6d 21h €4253
Looking for cryptocurrency programmer Hi, We are looking for an experienced programmer with 10+ years of experience along with the experience of cryptocurrency. You must have already worked on cryptocurrency and must be able to show the examples of your work. We are coming up with a concept related to cryptocurrency. We need an experienced programmer can work as project manager and manage our local programm's team. The pr... 5 PHP, Python, Architettura Software, Crittografia, Bitcoin Dec 16, 2017 Oggi6d 21h €462
Needs to hire 3 Freelancers We Already Develop Coin and Security Framework and want a mentor which can guide and helping in developing API with our developer. we are team of 4 people who are working on the developing the online wallet . so we need mentor who can create database design and guide our developer to develop API and help in developing API. Platform in Built on Spring Framework and Bitcoinj . Needs to hire 3 Free... 1 Crittografia, Bitcoin, Blockchain, Ethereum Dec 16, 2017 Oggi6d 21h €5532
Bitcoin and Ethereum Expert Required Urgently Create erc20 standard payable token smart contract, lending program and swapping the previous token to new token. 11 PHP, Progettazione Siti Web, Contratti, HTML, Bitcoin Dec 16, 2017 Oggi6d 20h €937
blockagin developer we have an idea on blockchain and we need an expert thatn can build this product. ico,tokens and the coin also. only bid if you have this experience. 13 Bitcoin, Blockchain, Ethereum Dec 16, 2017 Oggi6d 19h €1767
Need a .git project installed on heroku We want to setup and install an open source git on heroku. You will need to setup and configure heroku and the software. The software is in ruby on rails. 9 Ruby on Rails, Bitcoin, Ruby, Heroku, Ethereum Dec 16, 2017 Oggi6d 19h €72
Looking for a bitcoin expert to cancel an unconfirmed transaction HI, I sent a bitcoin transaction a few weeks ago with a low fee accidentally. I also don't want this transaction to go through anymore as the company closed down, so I would like it to be cancelled using the methods provided here: [url rimosso, accedi per visualizzarlo] Please don't bid on this if you are not too sure how to do this. 11 PHP, Architettura Software, Metatrader, Bitcoin Dec 16, 2017 Oggi6d 18h €105
Build a Cryptocurrency Exchange for Bitcoin and Altcoins Hello, my team want to establish a Crytpocurrency exchange site and following are the features we want: - A flexible solution for cryptocurrencies and fiat currencies trading - SSL Security - Automatic limits for funds withdrawal - Intellectual anti-fraud system - Funds withdrawal confimation through external communication sources - Two-factor authentication system - Precise, understandab... 16 PHP, Progettazione Siti Web, Architettura Software, Bitcoin Dec 16, 2017 Oggi6d 18h €8910
Create Neoscript Mining Pool ( cryptocurrency ) Hello, We looking for an expert on cryptocurrency developement. we want create an mining pool for NEOSCRIPT algo. ( coin : VIVO, GOBYTE, INNOVA, ect ) We hire you only if you have already setup one pool (or more ) for neoscript. Thanks you. 13 Bitcoin, Blockchain, Ethereum Dec 16, 2017 Oggi6d 14h €659
I need a mining pool, and faucet built for our cryptocurrency I Need a mining pool, and faucet build for our cryptocurrency. Only apply if you can work NOW. Our blockchain is behind, and need a mining pool. 19 Programmazione C, CSS, Crittografia, HTML5, Bitcoin Dec 16, 2017 Oggi6d 14h €203
I need bitcoind devs NOW We are a startup cryptocurrency, we are on the market being traded, and need bitcoind devs asap. We also want to set up 10 nodes. 6 Programmazione C, Crittografia, Ingegneria mineraria, node.js, Bitcoin Dec 16, 2017 Oggi6d 14h €1836
cryptocurrecy website Develop and draw professional technical task for website with exchange system and own wallets like [url rimosso, accedi per visualizzarlo] We alredy have a lot of points of reception and issue of real cash money. After clients can exchange "cryptocheck" to Bitcoin or Bitcoint to "cryptocheck“ like [url rimosso, accedi per visualizzarlo] For exemple 1 cryptocheck = 1/10 bitcoin... 46 PHP, Javascript, Progettazione Siti Web, HTML, Bitcoin Dec 15, 2017 Oggi6d 14h €1077
simple ICO website 1 page simple but effective 1 page ICO website 22 PHP, Progettazione Siti Web, HTML, Bitcoin, Ethereum Dec 15, 2017 Oggi6d 12h €127
Webdevelopment / design with bitcoin wallets J&M Mining Corporation is seeking extremely quick development of a user-specific password-protected dashboard for our users. It should be able to display a user bitcoin wallet and allow the user to send bitcoin out of the wallet. [url rimosso, accedi per visualizzarlo] We do not have any files to peruse at the moment. Must be willing to Skype, speak decent English and be very quick. ... 41 PHP, Progettazione Siti Web, Graphic Design, MySQL, Bitcoin Dec 15, 2017 Oggi6d 10h €180
Crypto Coin Developer required (Scrypt) I want to develop a new coin with Scrypt. I will provide specification. Serious developer with previous experience apply. 13 PHP, Javascript, Linux, Programmazione C++, Bitcoin Dec 15, 2017 Oggi6d 6h -
Bitcoin eCommerce website Setup a classified, cryptocurrency market. More details when contacted 30 PHP, Progettazione Siti Web, eCommerce, HTML, Bitcoin Dec 15, 2017 Oggi6d 3h €3337
Solo Mining Pool for Mining Rig Rentals I would like a solo mining pool for the new bitcoin fork "United Bitcoin" The Wallet and source code, windows wallet, and nodes have all been released. Project is time sensitive, more money for faster implementation. I would like to mine with [url rimosso, accedi per visualizzarlo], so the difficulty of the pool must be compatible. Thank You 3 PHP, Python, Architettura Software, Bitcoin Dec 15, 2017 Oggi6d 2h €500
Cryptocurrency Mixer / Bitcoin mixer / API Hello Freelancers, I'm looking for a Blockchain developer or (optionally) a primary application developer with contacts to API, Design & SEO. I need a website and the structure behind it to mix Bitcoin / Bitcoin Cash / Bitcoin Future / Ethereum / Litecoin / DASH. Good examples are the partially inactive page [url rimosso, accedi per visualizzarlo], the still active page [url ri... 23 PHP, Progettazione Siti Web, Bitcoin, Ethereum Dec 15, 2017 Oggi6d 2h €1084
Update cryptocurrency codebase, fork to new algorithm I have a cryptocurrency I made as a hobby years ago, it is a fork of Litecoin. I am interested in updating its codebase to a more recent one and changing its mining algorithm, but maintaining the existing blockchain and token distribution. I want to fork Monacoin which uses Lyra2REv2 algorithm. The source of my coin and monacoin are both available, I need to modify Monacoin source to work on... 13 Crittografia, Programmazione C++, Bitcoin Dec 15, 2017 Oggi6d 2h €375
Bitcoin - restore wallet on ubuntu I have [url rimosso, accedi per visualizzarlo] file I need u to restore my bitcoin wallet. The problem I have wallet doesn't run it gives error " cannot obtain a lock on data directory bitcoin core is probably already running " 7 Linux, Bitcoin Dec 15, 2017 Dec 15, 20175d 18h €19
Bitcoin hard fork Only who can hard fork Bitcoin and create a coin for me with each and every node, minning pool, wallet, block explorer etc. 8 PHP, Architettura Software, node.js, Bitcoin, API Steam Dec 15, 2017 Dec 15, 20175d 16h €1570
Ethereum token ico -- 2 I need a simple erc20 token ICO set up for me with simple ICO website simply for the crowdsale. I need this set up to my specifications. 11 Progettazione Siti Web, Crittografia, Bitcoin, Blockchain, Ethereum Dec 14, 2017 Dec 14, 20175d 10h €294
Ethereum token ico I need a simple erc20 token ICO set up for me with simple ICO website simply for the crowdsale. I need this set up to my specifications. 9 Progettazione Siti Web, Crittografia, Bitcoin, Blockchain, Ethereum Dec 14, 2017 Dec 14, 20175d 10h €404
Sistema de Doação (MMM Global) = https://mmmglobal.org Desenvolvimento de Sistema de Doação similar (MMM Global) = [url rimosso, accedi per visualizzarlo] 5 Bitcoin, Blockchain Dec 14, 2017 Dec 14, 20175d 8h €599
Bitcoin and altcoins Escrow payment service at the moment just looking for simple website ( design and code) with bitcoin secure transaction, i have some customer who looking for secure bitcoin transfer when buying a products online, every payment will be going to one wallet (at the moment), sellers will have to open account and customers as well, payment will be hold for time until customers will be happy with purchase, if anyone intereste... 24 PHP, Progettazione Siti Web, eCommerce, HTML, Bitcoin Dec 14, 2017 Dec 14, 20175d 7h €522
build a simple bitcoin sender in Python or C hello! we need a Python / C expert. 33 Programmazione C, Python, Architettura Software, Programmazione C++, Bitcoin Dec 14, 2017 Dec 14, 20175d 7h €414
Looking Web Developer Hi I am looking skilled web developer have experiences with cryptocurrency. Discuss for more detail on chat. Kind Regards. 24 Javascript, Ruby on Rails, HTML, Bitcoin, Ruby Dec 14, 2017 Dec 14, 20175d 7h €384
Exchange (Compra/Venda) de Bitcoin Criar website de Exchange (Compra/Venda) de Bitcoin 15 PHP, Progettazione Siti Web, eCommerce, HTML, Bitcoin Dec 14, 2017 Dec 14, 20175d 6h €453
bitcoin price I need to put in my website a page where we can see a graph with the evolution of the price of bitcoin. You can use this API [url rimosso, accedi per visualizzarlo] or any other API if you prefer. 15 PHP, Progettazione Siti Web, Graphic Design, Installazione Blog, Bitcoin Dec 14, 2017 Dec 14, 20175d 5h €25
Bitcoin Miners I have purchased several packs using USI-Tech and need more people to sign up and purchase packs. I will pay $5 to everyone who signs up and buys a pack. The packs cost around $60, but will make you 140% over the next 140 days. You WILL make money. You have to use my link to sign up otherwise, i cannot pay the $5. [url rimosso, accedi per visualizzarlo] 4 Bitcoin Dec 14, 2017 Dec 14, 20175d 5h €259
Cryptocurrency Reviews and Rewriting Articles Hi, I'm looking for a writer with Cryptocurrency background. I will need some Coins reviews and Article rewrites on weekly basis.. Please do not Apply for this job if you do not know what PoS is.. Please explain what PoS is in your offer. I will remove your offer if you fail this.. This is very important for me.. I need a person who knows Crypto and understands what is going on.. A... 29 Copywriting, Article Writing, Riscrittura di Articoli, Bitcoin, Scrittura di Contenuti Dec 14, 2017 Dec 14, 20175d 4h €31
I would like to hire a PCB Layout Designer Design a bitcoin miner comparable to Antminer S9 19 Ingegneria Elettrica, Configurazione Circuiti Stampati, Bitcoin, Progettazione di Circuiti Dec 14, 2017 Dec 14, 20175d 3h €49
Bitcoin - Coinbase.com - Cryptocurrency - MultiSig Vault Recovery Tool I am looking for an expert in Bitcoin / Coinbase who can walk me through how the below tools work. Because of a glitch in the Coinbase software I am unable to move my Bitcoin from my MultiSig Vault into a normal wallet. As a last resort I am forced to use the tools below to recover my Bitcoin. I am new to cryptocurrencies and I want to make sure with 100% absolute confidence that I am usi... 10 PHP, Javascript, Progettazione Siti Web, HTML, Bitcoin Dec 14, 2017 Dec 14, 20175d 2h €225
bitcoin purchase platform create me a platform where users can buy bitcoin 12 PHP, Progettazione Siti Web, Architettura Software, HTML, Bitcoin Dec 14, 2017 Dec 14, 20175d 1h €276
expert php coder i need an expert php coder wich is able to implement bitcoin-cli and ethereum's framework in a php code wich has to be written from scratch, i need a market coded price can be higher than advertised 51 PHP, Bitcoin, Ethereum Dec 14, 2017 Dec 14, 20175d €1259
Writing Bitcoin & Cryptocurrency News Hi! We are looking for an author with whom we want to work longterm - meaning at least a year - and who is heavily interested in cryptocurrency. Right now, we can start with 3 cents per word, but hopefully in the 2nd or 3 month we will be able to increase it to 4 cents, 5 cents and even more. We will need at least 1 article per day with about 350-700w , could also be more for special reports.... 47 Ghostwriting, Article Writing, Inglese (Regno Unito), Inglese (USA), Bitcoin Dec 14, 2017 Dec 14, 20174d 23h €299
bitcoin purchase website help me create a website where users can buy crypto 19 Javascript, Bitcoin, Blockchain, Ethereum Dec 14, 2017 Dec 14, 20174d 23h €2047
Cryptocurrency, Blockchain, Bitcoin Expert Cryptocurrency, Blockchain, Bitcoin Expert Required 14 PHP, Progettazione Siti Web, Linux, Architettura Software, Bitcoin Dec 14, 2017 Dec 14, 20174d 21h €380
Looking for an ICO Advicer We are looking to launch an ICO. So we are looking for an adviser who can help. 4 Bitcoin, Blockchain, Ethereum Dec 14, 2017 Dec 14, 20174d 18h €25
Add a Bitocin API and payment system to our website We are an online marketing company and would like to accept Bitcoin as payment for our products. Our programming is in PHP. Users would send Bitcoin into a company wallet for product purchases, and sub-wallets would be created for each user to allow us to pay out commissions in Bitcoin. Ideally, we would like to be have an internal exchange, where users can buy Bitcoin from us at market rat... 31 PHP, Progettazione Siti Web, Architettura Software, MySQL, Bitcoin Dec 14, 2017 Dec 14, 20174d 16h €141
Development of a new cryptocurrency If you can develop a new cryptocurrency, then please apply. Will be needing Linux, Windows and Mac wallets. More details will be given inside chat. Please only apply if you know how to develop a new crypto. Thanks. 33 Programmazione C, Architettura Software, Mac OS, Programmazione C++, Bitcoin Dec 14, 2017 Dec 14, 20174d 16h €2700
custom altcoin and wallet creation * Fully customizable parameters (block time, block reward, block reward reduction rate, etc) * Hybrid * choice of algorithm (SHA256, Scrypt, X11, etc) * choice of difficulty algorithm (KGW, DGW, etc) * Optional premine with premine protection * Unique merkle root and genesis block * Decentralized peer matching system * Source code * Web/windows/mobile wallet * Client compilation * Node h... 6 Programmazione C, Programmazione C++, Bitcoin, Blockchain, Full Stack Development Dec 14, 2017 Dec 14, 20174d 15h €3890
Cryptocurrency mining website Hi , I want to make a cryptocurrency mining website which can mine (Bitcoin, litecoin, ethrium, Dash, BTC Cash). where the people can login and start mining the currency which they selected. Payment mode is by bitcoin, receive from investors and payout. Here is a theme sample which i fount exactly as per my requirement. [url rimosso, accedi per visualizzarlo] Thanks 17 PHP, Javascript, Progettazione Siti Web, HTML, Bitcoin Dec 13, 2017 Dec 13, 20174d 11h €164
Looking for advisers in raising iCO (cryptocurrency, blockchain) Hi, We are on-demand same-day shipping and delivery solution company. We have launched our marketplace software product a few months ago and have already gained some traction at a local level in the Silicon Valley, however, we think that by participating in an ICO we can grow our business much faster and scale up to a global level. So we are considering to pursue an ICO route and we need comprehe... 10 SEO, Bitcoin, Blockchain, Marketing Strategy Dec 13, 2017 Dec 13, 20174d 10h €2763
Creating website for selling/buying bitcoins Hi, Looking for a developer that can create a website for selling/trade bitcoins/cryptocurrency. A bitcoin wallet is (for now) not needed, i prefer to integrate [url rimosso, accedi per visualizzarlo] or biftinex api to sell/buy coins. (so makes it easier) Site can be like: [url rimosso, accedi per visualizzarlo] or bitonic.eu. Just same user interface and functions. very simpel, very eff... 31 PHP, Progettazione Siti Web, eCommerce, HTML, Bitcoin Dec 13, 2017 Dec 13, 20174d 7h €732
Script to send CryptoCurrency Looking for someone to help me create a very simple script that can accept a cryptocurrency address (such as BTC, ETH, LTC, XRP) and send the appropriate cryptocurrency to it. If you've done blockchain or cryptocurrency work before, then this will be a breeze for you. I prefer NodeJS, but PHP will work too as long as its easily to scale. 20 PHP, Javascript, node.js, Bitcoin, Blockchain Dec 13, 2017 Dec 13, 20174d 6h €404
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