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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    33 仕事が見つかりました。次の価格: USD

    we required BTC seller for project who have experience in this and can easily manage everything.

    $50 / hr (Avg Bid)
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    1 入札

    I have a requirement for an experienced Blochchain architect to review the concept and : 1. Advise on Go/No-Go decision 2. Provide feedback/improvements 2. Clarify the technology stack needed (so that a further development project can be started) 3. Design the architecture of an app and processes with "security" at the forefront and identity verification/management (must be of excepti...

    $194 (Avg Bid)
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    9 入札

    A set of new beta testers comes to a new cryptocurrency exchange, everyone can participate in the absolute, even without experience. All beta participants will receive $ 500 in their balance for trading bitcoins. For each error we find, we pay 500 dollars.

    $264 (Avg Bid)
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    4 入札

    We need to test the operation of the ERC20 (CRYPTOCASHBACK) CSSBACK token. We invite specialists on working with smart contracts on the ethereum and blockchain networks. 1. It is necessary to conduct an audit. 2. Check the network stability. (make several transactions with our tokens within the ERC20 network. 3. Identify network vulnerabilities, if any. For more information send your applications ...

    $545 (Avg Bid)
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    9 入札

    We are a building blockchain based applications for customers across different industries, we have already built in commercial and non profit applications. We want to build the following: We have an application to create with: - about 25 screens - responsive - backend functionality such as login, database inputs from users - blockchain registration of hashed data, we plan to use Ethereum. -...

    $15912 (Avg Bid)
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    62 入札

    I need you to write a research article on banking system,, online banks And compare it with blockchain

    $135 (Avg Bid)
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    31 入札

    Hey! I am looking for someone who can teach blockchain app development. Mainly app development on ethereum platform & on hyperledger. You should be available 2-3 hours a day to teach.

    $10 - $17 / hr
    $10 - $17 / hr
    0 入札

    i need to split my smart-contract (because it's too heavy for the gas limit), deploy in ropsten to test it, change the contract set in the interfaces that i have to test it, deploy it in main net and set the correct contract in the interfaces.

    $305 (Avg Bid)
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    1 入札

    i need to split my smart-contract (because it's too heavy for the gas limit), deploy in ropsten to test it, change the contract set in the interfaces that i have to test it, deploy it in main net and set the correct contract in the interfaces.

    $330 (Avg Bid)
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    1 入札

    We are a software company that leverages the power of blockchain technology for supply chain traceability. We want a very futuristic website that has more focus on the technology (we will build a different one for the companies who will use our software that is more simple). This will be our technical website where we also put our API documentation etc.; We are currently active in the meat industr...

    $287 (Avg Bid)

    We are looking for a technically skilled project manager and/or developer to create a Development Roadmap for a margin focused cryptocurrency exchange like BitMex/Bybit/BaseFex. The roadmap should be written in academic style, similar to a whitepaper and contain the complete process in detail from choosing the right hardware to launching to final exchange to the public, with all necessary milesto...

    $236 (Avg Bid)
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    10 入札

    I need someone who can install complete [ログインしてURLを表示] on my AWS server. You must have to have past experience about installing exchange. Exchange Liquidity Referral Multi language HOT/Cold Wallet erc20

    $238 (Avg Bid)
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    11 入札

    Looking for long term developer team for the new project. 1. Liquidity 2. 5 crypto Market - BTC,ETH,LTC,USDS, XRP 3. 20 ERC20 coins to be listed 4. New dark and light UI design (binance basic) 5. Admin Panel must have the listing function and adding market pair function. 6. Referral function needs to add and there should be manage function like 30%,50%80% as per admin mind. My budget is 200$ now...

    $1284 (Avg Bid)
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    19 入札

    Before we move on please show me a demo of your work - centralized exchange platforms! We are looking perfect cryptocurrency exchange which you developed before so we can buy and launch by tomorrow!

    $725 (Avg Bid)
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    12 入札
    Blockchain Content Writer 5 日 left
    認証完了

    Must have Financial Domain Exp MUST HAVE WRITING EXP MUST HAVE TECHNICAL WRITING EXP MUST HAVE EXP WRITING ON BLOCKCHAIN, SECURITIZATION ETC TOPICS THIS IS LONG TERM ROLE PREFERRED FROM USA, CANADA OR INDIA

    $111 (Avg Bid)
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    11 入札
    Django Crypto wallet 4 日 left
    認証完了

    Hello, I am creating a wallet website who will help people to manage their crypto , the website is almost done but I need some help with the "admin"panel. People can create organisation with some department inside it , inside the organisation they can create admin department who will manage their wallet. And I have a few problem with it.

    $237 (Avg Bid)
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    27 入札
    Looking for Blockchain developer 4 日 left
    認証完了

    HI, freelancers. I am looking for an blockchain developer Project Scope: 1. Configuration Private Network based PoA. 2. Configruation Wallet Thanks.

    $20 / hr (Avg Bid)
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    20 入札
    Stable coin 4 日 left
    認証完了

    Build stable crypto coin. Don’t mind a clone code

    $22 (Avg Bid)
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    4 入札

    Hello we need someone to make hot a fix for our Erc 20 based Eth token. Requirements 1- Have experience on ERC 20 based tokens and can show reference. 2- Knows how to use Putty, Winscp 3- Can teach us how to find some general bugs and errors and their fixes.

    $20 / hr (Avg Bid)
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    15 入札

    Hi, I have a prototype in my mind that I want to test it through designing a system. If it works well, I want to add other functionalities by time. Thanks, Norris

    $20 / hr (Avg Bid)
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    16 入札
    security of contract 3 日 left
    認証完了

    [ログインしてURLを表示] Hi, I want to have a security report form "Oyente". it should be done in 2-3 hours it is very simple because the contract in very simple. all u do is to follow the steps in the shared link. Max budget is 10 USD

    $12 (Avg Bid)
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    4 入札

    I am looking for peatio open source cryptocurrency customisation a Linux/Ubuntu server expert who can do the following: - Set up Rubykube Peatio Cryptocurrency Exchange on [ログインしてURLを表示] and [ログインしてURLを表示] - Peatio Core - Peatio Trading UI - Environment - Barong - Crypto Daemons - Cryptocurrency (Bitcoin, Ethereum, etc) deployment to the Server [ログインしてURLを表示] KYC INTEGRATION API , [ログインし...

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    9 入札
    I need a blockchain developer 2 日 left
    認証完了

    How are you I need a database blockchain developer I have an already developed Mysql database with PHP backend code I want to convert the Mysql database to Blockchain and connect the php backend code if you have experience with this field, please bid on my project

    $177 (Avg Bid)
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    28 入札

    I am going to build a website to integrate with etherum blockchain. You must have rich experience with etherum, erc20token. This project must be finished in 10 days. Please bid if you are definitely confident in this field and add *blockchain expert in your proposal at first. Thanks.

    $1513 (Avg Bid)
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    22 入札

    Looking for a dev with STEEM blockchain knowledge. The dev must know how to integrate steemconnect to an igaming website & how to make it functional (play games using real STEEM, deposit/withdraw). Also, the dev must know how to implement a steem engine token to the platform. The token must be an integral part of the cashback system (a chosen percentage of the total wagers is returned to the...

    $180 (Avg Bid)
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    4 入札

    Looking for an online business platform with no physical engagement like delivery . It can be range of businesses from crypto exchange to practical apps or gaming apps . I will pick the best idea and developer depending on ROI and business popularity and the concept. Please kindly read the full deception of the project before biding.I'm looking for a pre existing business or a good busines...

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    92 入札

    I'm looking for a program to perform multi-sign BTC and/or ECR20 token transactions offline and online It must support signing via hardware such as Trezor and Nano Ledger and AWS CloudHSM Java language preferred

    $181 (Avg Bid)
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    3 入札

    Hi - I am looking for an expert to build a network for me that I can store my data in Hyperledger burrow network. so your job is to build a network and api to store my random generated dataset into the hyperledger network- burrow. the link of hyperledger burrow is this:[ログインしてURLを表示] please let me know if you need to see my data and how they are being generated, it is just random data. thanks

    $216 (Avg Bid)
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    10 入札
    Blockchain-Powered Invitation Dapp 1 日 left
    認証完了

    Features: - sign up -- potential sign up/sign-in option via Google/Facebook - create invite: what, what, when, where - send/share invitation - recipient receives invite via email and/or text; recipient is prompted to sign in or sign up - recipient gives rsvp response: "yes" or "no", and to post an optional message to a message board - event host and invite recipients can also, ...

    $333 (Avg Bid)
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    40 入札

    I am looking for good developer to make a crypto exchange for me. There should be three types of roles 1. Super Admin 2. Different types of admin with roles 3. User Features I need. 1. Liquidity from Binance 2. Atomic Swap 3. Realtime and super fast order matching system 4. Hot Cold wallet 5. Admin can make unlimited pairs themselves 6. IEO features 7. Referral System 8. Fully Featured Modern Admi...

    $954 (Avg Bid)
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    16 入札
    blockchain training 19 時間 left

    i need an expert for install a block chain and configure it until the fisrt smart contract together on skype o similar video conference tool

    $221 (Avg Bid)
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    11 入札
    Need Blockchain expert 5 時間 left
    認証完了

    I am looking for someone who can develop stablecoin based on TRC20. Need experiences: - strong experiences in solidity - knowledge in stablecoin - TRC20 tokenization I will tell detail requirements in our interview. At the first of proposal, please add this word - xingshunda Before hiring, I will ask experiences and test skills for the best candidate.

    $179 (Avg Bid)
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    11 入札
    Need Solidity Expert 3 時間 left
    認証完了

    I am looking for someone who can develop stablecoin based on TRC20. Need experiences: - strong experiences in solidity - knowledge in stablecoin - TRC20 tokenization I will tell detail requirements in our interview. At the first of proposal, please add this word - xingshunda Before hiring, I will ask experiences and test skills for the best candidate.

    $219 (Avg Bid)
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    5 入札

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