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. Нанять Blockchain Developers

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    36 работ(-а,-ы) найдено, цены указаны в USD
    Bitcoin jackpot site 6 дней(-я) left
    ПОДТВЕРЖДЕН

    Looking for partner (paid small amount while working and then site revanue) I want a bitcoin jackpot site (script) Players register and deposit btc. They then ret credit on the site to use in the jackpot. Jackpot is timed so Player can join in and try win the pot. Site profit is 10% of each played game. Dont reply of you havent read it all. Dont reply og you dont Know what bustabit crash gam...

    $70 (Avg Bid)
    $70 Ср. ставка
    3 ставки
    Build Decentralized Exchange 0x Protocol Like Paradex 6 дней(-я) left
    ПОДТВЕРЖДЕН

    Here Its Example How Should Look And Should Be The Exchange The UI/UX Check Website Before Bid if u can make like this okay : [войдите, чтобы посмотреть URL]

    $4752 (Avg Bid)
    $4752 Ср. ставка
    25 ставки
    Create new genesis block 6 дней(-я) left

    I need to generate new genesis block insted of current one for POW/POS cryptocurrency, with new vAlertPubKey and scriptPubKey all instruction and steps should be include. award will be according to best price

    $157 (Avg Bid)
    $157 Ср. ставка
    5 ставки
    Ethereum Smart Contract developers needed 6 дней(-я) left
    ПОДТВЕРЖДЕН

    We are looking for Ethereum Smart Contract developers who has god grip on Solidity language to write contracts and trigger events

    $41 (Avg Bid)
    $41 Ср. ставка
    2 ставки
    Build a Mining Pool Website -- 2 6 дней(-я) left
    ПОДТВЕРЖДЕН

    Build a Mining Pool Website Like [войдите, чтобы посмотреть URL] [войдите, чтобы посмотреть URL]

    $152 (Avg Bid)
    $152 Ср. ставка
    7 ставки
    crypto exchange 6 дней(-я) left

    Hello! I need a script crypto exchange, just looking for a ready solution. Before buying, I need to watch a demo! I do not need to develop from scratch, such a proposal please do not write to me!

    $1396 (Avg Bid)
    $1396 Ср. ставка
    37 ставки
    Blockchain expert 6 дней(-я) left

    I am looking for ocaml blockchain expert

    $630 (Avg Bid)
    $630 Ср. ставка
    21 ставки

    Section 1: Final points to be verify and fix if any issues 1) SMTP to API for email via [войдите, чтобы посмотреть URL] api 2) Email and SMS notification alert for message from trade related 3) Validations in Register page 4) Multiple user session lock 5) Session Hijacking 6) Update mobile no otp verification 7)Sign In link expire on click for sign in 8) Ledger proper in User and Admin Dashboard ...

    $47 (Avg Bid)
    $47 Ср. ставка
    2 ставки
    Blockchain developer 5 дней(-я) left

    Hello. I am looking for experienced oclam developer. Have to know blockchain, prototcols, c++.

    $543 (Avg Bid)
    $543 Ср. ставка
    20 ставки
    Cryptocurrency mining pool modification 5 дней(-я) left
    ПОДТВЕРЖДЕН

    I'm trying to modify pool codes in a mining pool using SHA 256 and redeem the hashes in another coins . Basically my device only process SHA 256 but wondering if we could program the pool to convert the algorithm ? please contact me if you have experience in this filed. my method of payment is by creating milestones and release it once the task was completed . had lots of good reviews so far...

    $467 (Avg Bid)
    $467 Ср. ставка
    14 ставки

    A blockchain engagement platform designed to be a nexus for blockchain education, networking, enterprise collaboration and talent discovery. It is a six month project with a fixed pay every month.

    $3423 (Avg Bid)
    $3423 Ср. ставка
    11 ставки

    Building supply chain management using blockchain for super market

    $28 / hr (Avg Bid)
    $28 / hr Ср. ставка
    15 ставки
    ERC20 token exchange listing with 1 - 2 eth budget. 5 дней(-я) left
    ПОДТВЕРЖДЕН

    ERC20 token listing with 1 - 2 eth budget.

    $539 (Avg Bid)
    $539 Ср. ставка
    23 ставки
    crypto decentralized exchange 5 дней(-я) left

    hello! we are looking for people who can get us a decentralized crypto exchange you can looking at this website [войдите, чтобы посмотреть URL]

    $2425 (Avg Bid)
    $2425 Ср. ставка
    12 ставки
    Legal opinion on Utility token 4 дней(-я) left
    ПОДТВЕРЖДЕН

    We have an ERC20 token and we want a legal opinion to ensure it's a utility cryptocurrency. Please don't bid if you are inexperienced with this task.

    $682 (Avg Bid)
    $682 Ср. ставка
    9 ставки
    cryptocurrency 4 дней(-я) left
    ПОДТВЕРЖДЕН

    i want to create a cryptocurrency for payment.

    $578 (Avg Bid)
    $578 Ср. ставка
    23 ставки
    Food WheRevolution 4 дней(-я) left

    I'm fonder of ALFASSA ( [войдите, чтобы посмотреть URL] ) and I need a BlockChain's programmers

    $8587 (Avg Bid)
    $8587 Ср. ставка
    23 ставки
    Setup Electrum Wallets 4 дней(-я) left

    I am looking for a blockchain developer experienced in setting up Electrum wallets. Project's description and features is attached.

    $331 (Avg Bid)
    $331 Ср. ставка
    11 ставки
    Blockchain expert. 4 дней(-я) left

    Hi. I am going to develop new blockchain. I will share details for right freelancer.

    $1025 (Avg Bid)
    $1025 Ср. ставка
    32 ставки
    Needed ERC20 token Service 4 дней(-я) left
    ПОДТВЕРЖДЕН

    We need ERC20 token Service Developer. We are looking for a highly skilled developer who can provide us ERC20 Services. We are looking for • Get Balance • Token Send/Receive • Token Address Generation • Transaction History Please Note: • You will need to handover the full development source code to us. • Should be developed with PHP CodeIgniter. • We need the se...

    $543 (Avg Bid)
    $543 Ср. ставка
    18 ставки
    Create PIVX based new coin ( Masternode Coin) 3 дней(-я) left
    ПОДТВЕРЖДЕН

    1. Create a masternode coin like pivx 2. Create block explorer 3. Create QT wallets ( Win - 32-64, Linux, Mac ) 4. Publishing source code in github [войдите, чтобы посмотреть URL] masternode guide 6. guide to install the seednode Please note : I require only professional developers , I will first check if the coin chain is smooth or not I mean no bugs in the coin or proof of stake

    $590 (Avg Bid)
    $590 Ср. ставка
    8 ставки
    Blockchain training course 3 дней(-я) left

    We need to develop and execute a training program in Blockchain

    $525 (Avg Bid)
    $525 Ср. ставка
    13 ставки
    Cleveland, Ohio EOS Uber App -- 2 2 дней(-я) left
    ПОДТВЕРЖДЕН

    Looking to get an app built on the EOS blockchain that allows riders to receive tokens for their driving service similar to UBER in the Cleveland area. Must have understanding of GPS.

    $4374 (Avg Bid)
    $4374 Ср. ставка
    27 ставки
    Cleveland, Ohio EOS Uber App 2 дней(-я) left
    ПОДТВЕРЖДЕН

    Looking to get an app built on the EOS blockchain that allows riders to receive tokens for their driving service similar to UBER in the Cleveland area. Must have understanding of GPS.

    $2370 (Avg Bid)
    $2370 Ср. ставка
    15 ставки
    Help create my Blockchain Fork... 2 дней(-я) left
    ПОДТВЕРЖДЕН

    I need a Blockchain Developer capable of producing a fork with basic Blockchain Adjustments like Block Time, Block Reward, Block Halving, Etc. We would like a wallet implemented and designed as well along with several additional aspects to the development but nothing to extensive. We would require someone with at least 2-3 years experience with Blockchain Developer. ***NOT SMART CONTRACTS! SOL...

    $36 / hr (Avg Bid)
    $36 / hr Ср. ставка
    40 ставки

    I need complete guide to create qt wallets, genesis block, block explorer, block chain from scratch. Finished product should include guide for bash file for easy setup of a masternode VPS on Ubuntu 18.04, and QT GUI wallets for Linux, Windows, Mac. Finished blockchain should not have Proof-of-work mining capabilities. All GUI wallets should be capable of hosting masternodes, have an explorer optio...

    $908 (Avg Bid)
    $908 Ср. ставка
    4 ставки
    Develop iOS React Native App with Custom Map Building 2 дней(-я) left
    ПОДТВЕРЖДЕН

    Hi! I want my iOS app to be developed in React Native. It's an app like Uber. I have the Android & iOS version already made up using Objective C. Design & all the things will be same as the existing app in React Native except map. The map should be created for React Native. It’s a simple map like admin can change the colors, can create own icons, colors on map etc in a word, ad...

    $1985 (Avg Bid)
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    41 ставки
    Blockchain developer 2 дней(-я) left

    I want to develop a proprietary service for my customers. Essentially, it's going to be a stripped-down version of blockchain. I need someone who is knows blockchain inside out - to the point where theyre not helplessly enamoured by it. If you know what you're doing, this is a walk in the park. If you're wrapped up in your crypto bubble, stay there, I have no use for you

    $1569 (Avg Bid)
    $1569 Ср. ставка
    36 ставки
    Compile new POS/POW coin -- 2 2 дней(-я) left
    ПОДТВЕРЖДЕН

    I want to start a new coin POS/POW. Please bid if you have already developed coins. Looking forward for serious dev..

    $768 (Avg Bid)
    $768 Ср. ставка
    7 ставки
    Rubykube / Peatio open source cryptocurrency Exchange 1 день left
    ПОДТВЕРЖДЕН

    I need some one to install Rubykube/peatio cryprocurrency exchange in Kubernetes or linux, and you should modify backend and frontend ui please bid if you worked kubernetes docker Ruby on rails and blockchain technologies, want to know more details plz chat with me,

    $30 / hr (Avg Bid)
    $30 / hr Ср. ставка
    16 ставки
    fix minor crypto payment processor issues on website 1 день left
    ПОДТВЕРЖДЕН

    fix minor issues on coinspayment gateaway. btc, eth, and ltc mostly is fixed, just that the exchange rate has a problem. [войдите, чтобы посмотреть URL]

    $81 (Avg Bid)
    $81 Ср. ставка
    10 ставки
    fix bug on API 1 день left
    ПОДТВЕРЖДЕН

    i need a minor bug fix on coinspayment API.

    $49 (Avg Bid)
    $49 Ср. ставка
    25 ставки
    TRON video distribution site 16 часов(-а) left

    Hello. I want to make a demo of a decentralized video distribution platform using TRON. There are no ads or commercials on this site. My existing site uses Ethereum for micropayments and WebTorrent (in-browser BitTorrent) for streaming. I want to do a very simple proof-of-concept using TRON instead of Ethereum. The viewer comes to the site and uses TRON to automatically send a micropayment to the ...

    $100 (Avg Bid)
    $100 Ср. ставка
    1 ставки
    Web app deveoper needed 8 часов(-а) left

    Progressive web app - to save information in blockchain MVP ... create text message or text box attach photo, take pics, save video, audio ... we want to use Fluree Blockchain Database and Decentralized Apps. database API.

    $761 (Avg Bid)
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    21 ставки
    Blockchain based platform developed on Node.js Заканчивающийся left
    ПОДТВЕРЖДЕН

    Hello, i am seeking for a developer that can build a blockchain based marketplace where user and business people are able to find each other, for example like freelancer.com is doing but for another target group. The site allows to post the needs for site members while bidding on in a competitive tender process. On the other hand seller can list their "item", user can view it and press ...

    $1745 (Avg Bid)
    $1745 Ср. ставка
    62 ставки
    Create a new Crypto Currency 16 дней(-я) left
    ПОДТВЕРЖДЕН

    Create a new Crypto Currency by Improving open source existing codes and ensure its reliability to connect to external environments, and implement sepcific specs and deliverables and high level security.

    $3408 - $5680
    Избранный Скрытый Соглашение о неразглашении
    $3408 - $5680
    63 ставки

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