Blockchain Munkák és versenyek

Blockchain is a distributed register that is used to maintain a continuously growing list of records, called blocks. It has revolutionary applications in finance (such as cryptocurrencies like Bitcoin) and decentralized applications like online voting.
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Munkák keresése a Freelanceren

Projekt/Verseny Leírás Árajánlat/Pályamű Készségek Kezdete Vége Ára (EUR)
CryptoCurrency Exchange Project Hello Freelancers, I need a project similar in features to Poloniex or Hitbtc including a unique design. Rest will be discussed in chat including Project Budget. Please bid only if you have reasonable experience in development and designing and teams will be preferable. 1 PHP, Internetes biztonság, Blockchain, Web Development Dec 14, 2017 Ma6n 23ó €11931
digital identity app I want to make a digital identity manager on a mobile phone which will be a store of a person's digital identity. This digital identity manager will have a simple mobile interface for the user to put in their details, eg name, and id number. once their identity has been made they should be able to record actions of their life using their camera on their phone, the gps details and time stamp. 57 Mobile App Development, iPhone, Android, Objective C, Blockchain Dec 14, 2017 Ma6n 22ó €1259
CryptoCurrency Development I am looking for someone who can develop Cryptonote ([url eltávolítva, lépjen be a megtekintéshez]) Framework. I need a Cryptonote Based Coin in PoS Protocol and Hashing Should be in X12 and X11 both. I need all source code and Guide for future development and also I need 1 month free support. Developer should help me for mining setup and GUI wallet developing. BID... 6 Kriptográfia, C++ Programozás, Blockchain Dec 14, 2017 Ma6n 20ó €3518
Looking for an ICO Advicer We are looking to launch an ICO. So we are looking for an adviser who can help. 2 Bitcoin, Blockchain, Ethereum Dec 14, 2017 Ma6n 20ó €7
Research and White Paper We need research paper writer, white paper writer in Crypto Currency. Experienced freelancer only apply. We have a block-chain technology based research paper to write. 47 Műszaki írás, Tudományos írás, Kriptográfia, Blockchain Dec 14, 2017 Ma6n 17ó €184
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... 5 C programozás, C++ Programozás, Bitcoin, Blockchain, Full Stack Development Dec 14, 2017 Ma6n 16ó €4041
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... 9 SEO, Bitcoin, Blockchain, Marketing Strategy Dec 13, 2017 Ma6n 12ó €2685
Ether ICO token Please review the following keypoints for the Solidity project. Create a Solidity Token with the following functions - Default functions that generate some tokens for the owner wallet similar to the truffle TrialToken - Buy resources function: Allows a wallet to allocate tokens to a smart contract Write on blockchain: - CPU (small integer Mhz) - Memory (small integer GB) - ... 18 PHP, CSS, Bitcoin, Blockchain, Ethereum Dec 13, 2017 Ma6n 9ó €9303
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. 13 PHP, Javascript, node.js, Bitcoin, Blockchain Dec 13, 2017 Ma6n 8ó €111
Build A Website Build A Website like this [url eltávolítva, lépjen be a megtekintéshez] with automated payments. Accurate information after the first bids. 65 PHP, Webdesign, HTML, Bitcoin, Blockchain Dec 13, 2017 Ma6n 5ó €560
Build Backend for Buying/Selling Cryptocurrency The goal of the project is to understand and retrieve consulting around what is needed to develop a backend which supports buying/selling and storing crypto within 1 app. We want to develop an app similar to Coinbase but want to support more Cryptocurrencies. 14 Mobile App Development, iPhone, Szoftverarchitektúra, Blockchain Dec 13, 2017 Ma6n 2ó €5413
Crypto cureency (alt coin) project development I want to develop a crypto currency i.e, an alternative currency wallets ICO blockchain etc., 9 Kriptográfia, Bitcoin, Blockchain Dec 13, 2017 Dec 13, 20175n 21ó €975
Bkockchain consultant required Looking for a blockchain consultant who has knowledge of trading exchanges and network security. 13 Metatrader, Bitcoin, Hálózati Adminisztráció, Blockchain Dec 13, 2017 Dec 13, 20175n 19ó €85
build me a crypto currency Shall attach a brief document explaining. 33 PHP, C++ Programozás, Blockchain Dec 13, 2017 Dec 13, 20175n 19ó €2606
Need a blockchain app developer Hi I need to hire a blockchain app developer to make an app. I need someone with good knowledge and willing to work long term. Thanks Karishhma 5 Blockchain Dec 12, 2017 Dec 12, 20175n 14ó €993
Ethereum Smart Contract Developer Need a Ethereum Smart Contracts guru to assist with the development of a smart contract. 3 Szerződések, Blockchain, Ethereum Dec 12, 2017 Dec 12, 20175n 13ó €380
multi-platform blockchain ERC20 token Project Description We are looking for someone that has already experience with pre-ICO and ICO on the ethereum blockchain (erc20). We wil USE smart contract to accept payment, We already made our token on the ethereum blockchain--100 % The whitepaper & LOGO are already made----------------------------------------80 % The server and domein are already paid--------------------------... 15 Webdesign, Grafikai tervezés, Blockchain, Ethereum Dec 12, 2017 Dec 12, 20175n 9ó €4379
Fork an Ethereum Blockchain Using Github I need a blockchain expert only to fork an ethereum blockchain using github. More details will be shared over chat. 6 C++ Programozás, Blockchain, Ethereum Dec 12, 2017 Dec 12, 20175n 7ó €338
ICO Smart Contract Hello, Looking for an experienced blockchain / Solidity developer for building smart contracts and ERC-20 token for a startup company. This is a fairly straightforward project and relatively simple structure. At the moment we need someone to develop all of the blockchain tech from the ground up, followed by ongoing upkeep and utilizing your expertise through the ICO process as well. This pro... 29 PHP, Blockchain, Ethereum Dec 12, 2017 Dec 12, 20175n 6ó €3808
Project for Valentin S. Hi Valentin, How many hours would you need to translate a Javascript of about 350 lines (fairly well commented) to Lua? 1 C programozás, C# programozás, C++ Programozás, , Alkalmazásfejlesztő, Blockchain Dec 12, 2017 Dec 12, 20178n 3ó €17
Need expert to Work on Saas product with Laravel Hello, We need to build saas platform based on Laravel Spark, this platform should be very simple, we will add Bitcoin Wallet with API and STRIPE Subscription. You should check your Bitcoin wallet and transfer fund to another btc wallet. Need expert with experience on it. 14 Laravel, Blockchain Dec 12, 2017 Dec 12, 20174n 23ó €161
ATM Application for Bitcoin We are looking for someone with knowledge and experience with major ATM vender hardware and software integration. Experience integrating Bitcoin related APIs is a plus, but the most important experience is working with integrating ATM hardware and software. This project may involve working with traditional ATMs for integrating software with the physical hardware, such as an ATM application, an... 5 C programozás, Szoftverarchitektúra, Kriptográfia, Bitcoin, Blockchain Dec 12, 2017 Dec 12, 20174n 20ó €3850
Project for Valentino P. Hi want to discuss a Project related to Crypto Mining. Please send us a message back to Discuss 1 C programozás, C++ Programozás, , Blockchain, Ethereum Dec 11, 2017 Dec 11, 20177n 13ó €8
Smart Contracts Will get this right sooner of later. Looking for someone to write smart contracts on Ethereum platform to plugin to our wordpress website. 32 PHP, Python, Internetes biztonság, WordPress, Blockchain Dec 11, 2017 Dec 11, 20174n 10ó €1812
initial ICO website needed (please have worked on ICO or do not bid) I am looking to release a new ICO (initial coin offering). The platform will come later, but I need a page that will help design my coin, make secure wallets, do blockchain for a number of coins. This all needs to be secure. I also need to be able to add my whitepaper, roadmap, team and other things. IF you have not ever released an ICO page please do not bid on this project... here are some place... 20 PHP, Webdesign, Logótervezés, HTML, Blockchain Dec 11, 2017 Dec 11, 20174n 2ó €2504
Blockchain Software Engineer Must be UK based Must have experience of cryptography and encryption Must have experience creating ERC20 Tokens 9 Mérnöki munka, Kriptográfia, Blockchain Dec 11, 2017 Dec 11, 20174n 2ó €42
Crypto Wallet Portal BTCTENT.com What i need is : •A secure Crypto website that accepts deposits from the public and store their coins •A payment network which let them transfer crypto-currencies to each other fast and securely Secure Crypto Wallet Abstract Virtual currencies and mobile banking are technology advancements that are receiving increased attention in the global community because of their accessibil... 48 PHP, Informatikai biztonság, Bitcoin, Internetes Biztonság, Blockchain Dec 11, 2017 Dec 11, 20173n 20ó €1207
X11 COIN - Block reward split in three parts Dear we need Block chain developer for x11 coin. Coin already functional and we need split block reward in to three parts. 1: 45% to miners who will mine. 2: 45% will equally divide wallets who have 1000 Coins 3: 10% to self development wallet we need Block chain experienced developers, we don't deal on BTC or any other currency or platform. 15 C++ Programozás, Bitcoin, Blockchain, Ethereum Dec 11, 2017 Dec 11, 20173n 17ó €7353
CRYPTOGRAPHY WALLET APPLICATION LOOKING FOR a well experienced Developer in CRYPTOGRAPHY WALLET APP suitable for WEB / IOS / ANDROID NO UPFRONT PAYMENT. WILL JUST PROVIDE MILESTONE ONCE WE’LL AGREE FOR THE PROFESSIONAL FEE. STOP SUGGESTING TO CONTACT OUTSIDE FROM FREELANCER. Requirements / checklist: Used of blockchain api for btc exchanges Generate BTC address for registered user, private and public address Generate PHP... 40 Java, MySQL, RESTful, Blockchain Dec 11, 2017 Dec 11, 20173n 16ó €1167
I would like to hire a Virtual Assistant Ethereum ERC20 smart contracts in solidity 0.4.20 one-time fixed issue , all tokens placed // simple circulation rules , no growing algorithm // + some additional specifications /// pls bet & chat me asap 9 Java, Javascript, Adatbevitel, Blockchain, Ethereum Dec 10, 2017 Dec 10, 20173n 12ó €2248
Blockchain developer and Cryptocurrency Expert Looking for block-chain developer and cryptocurrency expert. Someone who has proven expertise in bitcoin 30 Webdesign, Bitcoin, Blockchain, Ethereum Dec 10, 2017 Dec 10, 20173n 10ó €23
Need landing page for ICO on Ethereum blockchain I am looking for someone to help create the landing page for an ICO project. Please submit examples of your work. Looking to get started ASAP. **Please reply with the word "CRYPTO" somewhere in your response or I might skip over you** 26 Szoftvertesztelés, Nyitóoldalak, Blockchain, Ethereum, Web Development Dec 10, 2017 Dec 10, 20173n 9ó €1079
Blockchain instructor Looking for a blockchain educator/instructor to create online video courses. Each course will be about one hour long. Course topics may include information about Crypto Currencies, Blockchain, ICOs, Crypto Trading, etc. Content should be in English. 5 Oktatás & Tutoring, Angol (UK), Bitcoin, Blockchain, Ethereum Dec 10, 2017 Dec 10, 20173n 1ó €125
PHP Expert for Coinbase API Integration We are urgently looking for a PHP expert who can work closely with our backend team and integrate Coinbase PHP library to facilitate communication between our JAVA backend and blockchain network. Additional experience with blockchain technology and cryptocurrencies is a huge plus. 8 PHP, Bitcoin, Blockchain, Ethereum, API Dec 10, 2017 Dec 10, 20172n 23ó €9
Blockchain and Java Backend Expert We are urgently looking for a blockchain and java backend expert who can help our backend team to create the next-gen cryptocurrency exchange wallet in India. We would prefer if you have previous experience in working on bitcoin/ethereum wallet services or APIs which we can integrate in our backend to facilitate wallet creation, address generation and payment processing. Please write 'I ... 12 PHP, Java, Szoftverarchitektúra, Bitcoin, Blockchain Dec 10, 2017 Dec 10, 20172n 22ó €10
created a a decentralized cryptocurrency based on omni layer looking for a team who is experienced in blockchain development, familiar with Ethereum smart contract, can create a cryptocurrency based on omni layer 8 Blockchain Dec 10, 2017 Dec 10, 20172n 21ó €23
MLM Development With BlockChain/Distributor Ledger System Looking for developers who can build a MLM Software on Blockchain technology. 4 Blockchain Dec 10, 2017 Dec 10, 20172n 20ó €6415
Blockchain technology Looking for someone to design and build a Blockchain for cryptocurrency looking to complete this project in the next couple weeks need someone with great communication skills in English that I’m able to communicate my ideas to if interested please contact me back for us to be able to see how can we work on this project thank you 16 Szoftverarchitektúra, Ötletbörze, Bitcoin, Blockchain, Ethereum Dec 9, 2017 Dec 9, 20172n 7ó €1031
Create my Ether blockchain token. I need someone to create ether blockchain token. Main token functions need to be : - When someone send ether to smart contract adress he receives tokens in return. -Ability to send dividends to all token holders in ethereum. - I need to change exchange rate ethereum/token if needed. I need to create new tokens without sending ether. So a need crowd founding token or something like this. ... 12 Programozás, Blockchain, Ethereum Dec 9, 2017 Dec 9, 20172n 1ó €494
I need a new ICO website I'm working on a block chain project .. I need a coding expert to create a crypto lending website for me with the following basic features: Creation and distribution of tokens Landing page/homepage The ICO administration/client platform Bitcoin/eth/dash/litecoin deposit platform(integration/API payment) Automatic purse generation Registration page and user profile. interested programmer shou... 23 PHP, Webdesign, Grafikai tervezés, Blockchain, API Dec 9, 2017 Dec 9, 20172n 1ó €572
Fix my crypto wallet error I have a wallet which is not confirming transactions. please check this screenshot. Only experienced. 7 C programozás, Kriptográfia, C++ Programozás, Bitcoin, Blockchain Dec 9, 2017 Dec 9, 20171n 18ó €36
Solidity Developers We are building the next generation crypto currency platform, token and network. We are developing on multiple stacks and languages. We need experienced solidity developers to assist with developing our master node smart contracts. At this point, we are building out our architecture and technology stacks. Data models are in development, as is our coins network, master node system, and wallets.... 9 Kriptográfia, node.js, Bitcoin, Blockchain, Ethereum Dec 9, 2017 Dec 9, 20171n 17ó €16
Need Block chain Technology speaker for Workshop Introduction Blockchain Blockchain Durability and robustness Cryptography Hashing Consensus methods Distributed ledger Peer-to-peer network Decentralization Idea of Crypto currencies like Bitcoin, Etherium, Ripple Smart contracts Build Sample decentralized blockchain App Test and deploy decentralized application 7 node.js, Bitcoin, Blockchain, Ethereum Dec 9, 2017 Dec 9, 20171n 15ó €1015
Python_trading a python 2.7 script to send orders through API to blockchain exchange C-Cex the input attributes and expected output from the function will be provided with a sample we will need the script to handle the usual messages and tackle expected error (if any) we will need the script to do the following features as a minimum: 1. place order 2. cancel order 3. check specific order status 4. get ... 11 Python, Blockchain Dec 8, 2017 Dec 8, 20171n 15ó €101
ERC20 Smart Contract Modification Required I'm struggling to compile an ERC20 fork I'm trying to work on. All I need is for someone to look at it and quickly fix it with an explanation of why it wasn't working. Shouldn't be more than a quick 10 minute job for someone who knows what they're doing. Thanks! 5 Blockchain, Ethereum Dec 8, 2017 Dec 8, 20171n 9ó €36
Blockchain developer and Cryptocurrency Expert Looking for blockchain developer and cryptocurrency expert. Someone who has expertise in bitcoin wallet and integration. I want to create a cryptocurrency exchange platform on web and mobile. Only expert and experience developer should apply with their portfolio for long term relationship 8 Kriptográfia, C++ Programozás, Bitcoin, Blockchain, Ethereum Dec 8, 2017 Dec 8, 20171n 7ó €20
cryptocurrency ico We have a brilliant world adopting cryptocurrency concept and need to recruit the team to make it a reality. Both blockchain (or beyond) technical or sector marketing brains are needed. Hoping to not sound too full of ....... but we think we really have something here - do you have something to bring to the party? 28 Mobile App Development, Blockchain, Digital Marketing Dec 8, 2017 Dec 8, 20171n 6ó €60
Modifying an ERC20 smart contract I'm struggling to compile an ERC20 fork I'm trying to work on. All I need is for someone to look at it and quickly fix it with an explanation of why it wasn't working. Shouldn't be more than a quick 10 minute job for someone who knows what they're doing. Thanks! 4 Blockchain, Ethereum Dec 8, 2017 Dec 8, 2017Véget ért €24
Adjust Open Source Code I am looking for someone to adjust this code: [url eltávolítva, lépjen be a megtekintéshez] To work on cryptonight pool, all options and features should remain the same. Only interested to run on Ubuntu, no need to make it work for windows 11 C programozás, Python, Linux, Szoftverarchitektúra, Blockchain Dec 8, 2017 Dec 8, 20171n 4ó €105
Building Cryptocurrency site exactly like litebit.eu Program a Bitcoin Exchange website that includes bitcoin and other popular cryptocurrency. (but focus on bitcoin to start) It can be exactly like : litebit.eu. Same functions and same ui. (just simple and efficient) MAIN FEATURES [-] Friendly & Responsive Design/Layout [-] Fully Responsive [-] Multi Language System option [-] Multi Payment Gateway/ payment api integration (bunq ba... 30 PHP, Webdesign, Bitcoin, Programozás, Blockchain Dec 8, 2017 Dec 8, 20171n 2ó €1664
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