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. Найняти Blockchain Developers

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    52 робіт знайдено, ціни вказані в USD

    Bitcoin needed urgent 0.015 as i can`t purchase them bymyself , imready to pay here 190$ upfront

    $12 (Avg Bid)
    Гарантований
    $12
    0 робіт
    Trophy icon Bitcoin needed urgent 0.015 23 годин(-и) left

    Bitcoin needed urgent 0.015 as i can`t purchase them by myself,imready to pay here 190$ upfront URGENT

    $10 (Avg Bid)
    Терміновий Гарантований
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    0 робіт
    redpacket weixin 6 дні(-в) left

    need red packet services weixin

    $580 (Avg Bid)
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    12 заявки

    SedCoin is a blockchain based start-up crowd leasing application platform. We need a simple and unique logo with high quality design. The logo should be represent 'Seductive', 'CryptoCurrency', 'Coin', etc. For your inspiration, we like Binance coin.

    $343 (Avg Bid)
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    Hyperledger Expert 6 дні(-в) left
    ПІДТВЕРДЖЕНО

    Hyperledger expert who has worked on the Hyperledger project. Someone with a business mind and interested in setting up business. Someone also needs to train me

    $198 (Avg Bid)
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    NodeJS Developer 6 дні(-в) left
    ПІДТВЕРДЖЕНО

    I'm looking for NodeJS developer who is familiar with Bitcoin p2p communication. Details: NOMP (Node Open Mining Portal) has built in module to receive blocks while acting like normal peer/node. However, the module has not been updated in years, so it can no longer successfully make handshake between NOMP "fake" node and real coin node. I suspect this happens because of no PING/PO...

    $203 (Avg Bid)
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    Greetings! we are seeking an experienced blockchain developer. Now we are on progress to make realistic 3d game and we need to integrate blockchain for its infrastructure. Do not hesitate to apply. Hope to hear from you soon.

    $8171 (Avg Bid)
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    Blockchain Developer 6 дні(-в) left
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    Blockchain developer to tokenize real estates , diamonds. Only bid if you have done this before. We will go indepth for discussion. Real good potential to work with us as we have secured funding.

    $1516 (Avg Bid)
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    I need highly talented developers for my blockchain project. further details will be disclosed after the NDA contract.

    $53174 (Avg Bid)
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    42 заявки

    Hello I am looking to get my Ethereum Smart Contract to get Audited from Some Blockchain Security Expert

    $2725 (Avg Bid)
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    Blockchains testers 6 дні(-в) left

    Hello everybody, I'm working on the implementation of Blockchains. I am looking for people interested in this type of projects, which can provide testing, and other cooperations. Thanks

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    Freelance Presenter for Webinar on Block Chain 6 дні(-в) left
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    Strengthscape is looking for a freelance presenter for a Webinar in the above mentioned field, with a minimum experience of 8 years.

    $151 (Avg Bid)
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    1 заявки
    Solidity/Ethereum Developer Role 6 дні(-в) left
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    This project involves producing a small system to run contracts in a batch setting. Key skills are - 1. Solidity, programming, Remix testing 2. Ethereum, public network, etherscan, metamask, myetherwallet 3. Ubuntu 16.04 4. backend language - eg node.js The role requires that a program is signed offline and then broadcast. Therefore a batch program can control the processing.

    $23 / hr (Avg Bid)
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    Main goals: to invent the simplest technical solutions for business problems; writing a technical task and setting tasks for developers (solidity, javascript, html, css); code review, control of developers and ensuring the implementation of development plans in a timely manner; participation in the writing of documentation; hiring developers (forming requirements for candidates and conducting int...

    $39 / hr (Avg Bid)
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    I want to upgrade my Block Explorer 6 дні(-в) left
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    My cryptocurrency is uploaded to exchange platforms and I want to upgrade Price value in my block explorer. I am using iquidus block explorer for my coin and if you have experience plz join to me. Thank you.

    $119 (Avg Bid)
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    Bustabit/Ethercrash Replica 5 дні(-в) left
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    I have a private bustabit source similar to [увійдіть, щоб побачити URL] Looking for a developer to turn it into a website that runs on dogecoin and not bitcoin. Would be great if we can talk over discord/skype

    $822 (Avg Bid)
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    Simple custom Bustabit Betting Script 5 дні(-в) left
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    I need a custom Bustabit betting script created with a very simple strategy.

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    Document Blockchain smart contract 5 дні(-в) left
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    The project has to be a simple blockchain file share smart contract. Files will be downloaded only by determined users and all the users will be able to know, who has access the files and when and if the file has been changed. Also, the files have to be encrypted. Ethereum blockchain or other opensource software can be used for the project. As much code used from opensource solutions it will be be...

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    Blockchain.com developer 5 дні(-в) left
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    Add bitcoin payment gateway to my ecommerce website. A blockchain developer.

    $471 (Avg Bid)
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    7 заявки

    I need a cryptocurrency wallet app which will support exchange of my token for BTC and ETH

    $8478 (Avg Bid)
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    56 заявки
    Cryptocurrency Exchange Offer 4 дні(-в) left
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    I'm looking a team to work on the cryptocurrency decentralize exchange which is already developed. Its almost listed on coinmarketcap! We need to collect some fund for exchange then we can run smoothly! If you have an interest in running own business private me.

    $2854 (Avg Bid)
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    Blockchain High Frequency Algorithm Trading Bot 4 дні(-в) left
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    Seeking a professional Mathematik Blockchain programmer that can create a HFT Algorithm Bot to trade in CryptoCurrency markets on all exchanges. The BOT I wish to have established is to minipulate CryptoCurrency Held in different exchanges. Ex: putting buy or sell orders in within milliseconds and re taking them for a profit before avaerage traders get the chance. This procedure can be performed o...

    $40 / hr (Avg Bid)
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    RubyKube Expert 4 дні(-в) left

    I have a private blockchain, forked from Ethereum, with our own tokens, smart contracts, wallets etc. Now I would like to launch our own exchange, including our own tokens, as well as traditional cryptoassets (btc, eth, ltc, etc) with different currency pairs. I'm looking for an expert in RubyKube to help us build and deploy a crypto exchange based on RubyKube / Peatio on AWS.

    $22 / hr (Avg Bid)
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    18 заявки

    Need a blockchain and ICO content writer that is qualified in some famous forums and social networking site As I have mentioned, proof of work before is a must, people with experienced profile and other social links needed Inbox me when you BID, I will remove those who bid but never inbox.

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    6 заявки
    Integrate my Crypto Coin to an Exchange 3 дні(-в) left
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    Looking for someone who can use the API i have created and list my coin to an exchange. I have already created the coin which is masternodes based and someone who has experience in similar field will be preferable.

    $209 (Avg Bid)
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    1 page ICO website with simple admin panel 3 дні(-в) left
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    I need a one page ICO website designed similar to the following site: [увійдіть, щоб побачити URL] I will provide logos and content. You will need to have graphic skills as I need it to be modern and stylish like the example. It must look great on all devices including mobile. It must not have mixed content so that ssl certificate is not an issue. It will need the counter to count down to the...

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    I need to build a blockchain wallet 3 дні(-в) left
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    I need to build a blockchain wallet something like Metamask or the Ethereum wallet

    $795 (Avg Bid)
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    cryptoexchange 3 дні(-в) left

    Hello i want to built up my own crypto exchange

    $2168 (Avg Bid)
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    I have a crowd-sale smart contract & ERC-20 token already setup and working. We need a investor and admin dashboard/panel, integrated into our Wordpress website.

    $796 (Avg Bid)
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    Need someone who is knowledgeable and can support project long term. Must have knowledge of the use of Github available open source in wallet swap mechanism in new wallet.

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    block chain solidity ethereum programming assistance expected

    $307 (Avg Bid)
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    Hyperledger composer chaincode development 3 дні(-в) left
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    I have a number of project which is related in Hypereldger composer. The chaincode (smart contract) must be developed by business logic. If you are interesting, please bid now.

    $2590 (Avg Bid)
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    I want to create own crypto currency with custom blockchain code 2 дні(-в) left
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    I need an expert to work on that

    $206 (Avg Bid)
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    Blockchain developer to add coins on my exchange 2 дні(-в) left
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    I am looking for experienced blockchain developer who understand wallet API to add coins on my exchange. I am looking to add up to 20 top coins by coin market cap. Only apply if you understand wallet API and how to integrate wallet on exchange.

    $639 (Avg Bid)
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    fork dash coin and (rename) 2 дні(-в) left
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    I am looking blockchain developer! I'm new in this sector but, I want to make my own coin (POS) need someone who can frok dash coin and complete the project. Comment below what we need to make same as a dash pos system! step by step that way I can increase fund! you can make price each section and submit I'll review carefully!!

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    Dear Freelancers. I have created my cryptocurrency based on Dash And I want to upgrade it as follows - Upgrade from PoW to PoW/PoS - Implement SegWit, Replay Protection, Unique Address Format, Zero Knowledge Proof, Lightning Network feature. Please bid if you are experienced altcoin developer. If you can do this job and understand my requirement 100% please start your proposal with Five dots. Plea...

    $393 (Avg Bid)
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    8 заявки
    Cryptocurrency Exchange 2 дні(-в) left

    Looking to hire skilled developers to create a new cryptocurrency exchange in node.js / angular. Needed individuals with a demonstrable portfolio previous node.js and angular projects - preferably in financial services. Expect to be asked to demonstrate your coding skills to the project manager. We expect applications from real full stack developers with a range of front-end and back-end technolog...

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    Want to get ICO Audit done for ethereum based Smart Contract 2 дні(-в) left
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    We have developed a Smart Contract & want to get it Audited & also need some security advice regarding the whole ICO process

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    Coin Exchange Website 2 дні(-в) left
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    We would like to build a website that based on cryptocurrency buying/selling. It will be very similiar website design on a great platform. If you are famililar blockchain tech and design please apply our project.

    $1996 (Avg Bid)
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    Je recherche dans le cadre de mon entreprise un avocat capable de me fournir des solutions juridiques pour créer des ICO tout en optimisant la structure. Je suis diplomé en droit mais je recherche quelqu'un avec de l’expérience minimum 5 ans. Nous pouvons discuter des détails plus tard. Pas de réponse automatique

    $52 / hr (Avg Bid)
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    5 заявки
    AI + Big Data and Blockchain projects 1 день left
    ПІДТВЕРДЖЕНО

    I am expecting projects on Artificial Intelligence ( Machine learning ) , Big Data and Blockchain technologies. Please let me know whether you are expert in this area and able to complete the projects with in the time frame. Also need to sign a disclosure agreement due to company confidential. Please send your projects and achievement one or more than one areas.

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    build me a website like cryptokitties 1 день left
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    I need a website like crypto kitties, including the pet's design you can check this website first: [увійдіть, щоб побачити URL] I was uploaded a development doc, is some about the website

    $2433 (Avg Bid)
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    Create Ethereum Smart Contract for Unity 1 день left
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    Create a Unity web application with Deposit and Withdraw function integrated with Metamask using Ethereum(Like how Metamask is integrated with [увійдіть, щоб побачити URL]) that should look like this: 1. Go to website 2. Unity Web loads on the website 3. Interface showing available ETH balance, deposit button and withdraw button 4. Clicking Deposit will automatically bring up Metamask of which...

    $834 (Avg Bid)
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    I want to upgrade my cryptocurrency Algorithm and features 1 день left
    ПІДТВЕРДЖЕНО

    Dear Freelancers. I have created my cryptocurrency based on Dash And I want to upgrade it as follows - Upgrade from PoW to PoW/PoS - Implement SegWit, Replay Protection, Unique Address Format, Zero Knowledge Proof, Lightning Network feature. Please bid if you are experienced altcoin developer. If you can do this job and understand my requirement 100% please start your proposal with Five dots. Plea...

    $769 (Avg Bid)
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    18 заявки

    We are a crypto project 2 years into our MVP and we are about to release our beta product. We are looking for a individual (No Teams) to join us as a core member of our company. Our company was voted most innovative by google, facebook, airbnb, yahoo etc for our last project and our current project is even better. We want someone who has crypto running though their veins, someone who can be a p...

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    Social App with phone contact integration and referral program 16 годин(-и) left
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    We would like our existing app to be able to send invitation to FB/Google/Phone contacts along with referral code. We keep track of the shared referral codes to reward the existing users who shred the codes.

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    Visionary Finance 2 15 годин(-и) left
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    We recently posted this project but are reposting it due to changing overall budget. We need to create a cryptocurrency social media website/mobile friendly. The website will be a social media site similar to something like LINKEDIN where crypto businesses/services can add a directory listing. There will be "featured listings" and normal listings that are subscription based. In these lis...

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    Build a Crypto Currency Exchange and have a long term opportunity!! 9 годин(-и) left
    ПІДТВЕРДЖЕНО

    Please look at the attached document and contact us to discuss the work! I want a crypto exchange on please let me know if anyone have ready script to use, to look at it…Demo please!! 5 market parings Coins and Tokens 25-30 on my exchange Connecting the API from foreign Exchanges such as: Binance / [увійдіть, щоб побачити URL] GDAX/ [увійдіть, щоб побачити URL] /Poloniex/ Bittrex, and m...

    $1000 - $2000
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    $1000 - $2000
    55 заявки

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