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. Palkkaa Blockchain Developers

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    53 työtä löytyi, hinnoittelu EUR

    Key features For Coin Development 1 Setting up of Cryptocurrency node servers 2. Set up coin parameters 3. Generation of Blockchain 4. Coin Generation 5. Pool mining 6. Web Explorer 7. Web Wallet 8. Admin Wallet 9. Exchanger Connectivity API

    €177 (Avg Bid)
    €177 Keskimäär. tarjous
    2 tarjoukset

    Hi I have a ERC 20 Smart Contract with very basic functionality that I need to get audited Thanks

    €134 (Avg Bid)
    €134 Keskimäär. tarjous
    4 tarjoukset
    fix cryptoniq payment gateway 6 päivää left
    VARMENNETTU

    hello, i've got a paid plugin called cryptoniq that doesn't work properly. Quick fix?

    €70 (Avg Bid)
    €70 Keskimäär. tarjous
    10 tarjoukset
    Cryptocurrency Wallet 6 päivää left

    I need a professional blockchain developer to setup my ERC20 wallet app for Android, iOS and web within 7days if possible. My budget is $200 but I can consider increasing it if you impress me

    €361 (Avg Bid)
    €361 Keskimäär. tarjous
    13 tarjoukset

    I want you to read this paper from chapter 5-8 to understand the concept... I need you to take the Use cases from the white paper ( chapter 6&7) and make them in to Yellow paper meaning, write how it will be done technically... All I need is just the technical write up of how these use cases can be achieved I want to write a yellow on the project.. What I need is just the write down of the te...

    €419 (Avg Bid)
    €419 Keskimäär. tarjous
    7 tarjoukset
    Erc 20 Contract builder 6 päivää left

    I want to build smart contract of erc 20 token with all pre mined token.

    €1268 (Avg Bid)
    €1268 Keskimäär. tarjous
    7 tarjoukset

    Dear Readers, We’re looking for a blockchain specialist with experience in building Dapps. A freelancer that can build a simple, basic but safe cryptowallet for the Tronplatform. ([kirjaudu nähdäksesi URL:n]) We want to be able to integrate this wallet with our future gameplatform. It should be able to function as a payment system for our platform. The product we’re looking...

    €750 - €1500
    Mainostettu Sinetöity
    €750 - €1500
    25 tarjoukset
    ICO Community Manager 6 päivää left

    We are an ICO looking for a community manager. We need to build a community on different platforms: Facebook, Instagram, Linkedin, Reddit, Zendesk etc. The proficiency level of english is required and a photoshop knowledge is appreciated. Previous experience in ICO projects is required.

    €15 / hr (Avg Bid)
    €15 / hr Keskimäär. tarjous
    16 tarjoukset
    Sell Domain Name for Me 6 päivää left

    Sell my domain name ( [kirjaudu nähdäksesi URL:n]) if you can get be best proposal we can close the deal also apart from fees and feedback i will pay you a commission

    €48 (Avg Bid)
    €48 Keskimäär. tarjous
    2 tarjoukset
    ICO whitepaper writing 5 päivää left
    VARMENNETTU

    I need someone to write White paper for my upcoming Decentralized news Platform which consume Blockchain technology to Broadcast and censor news items through Smart Contracts.

    €19 (Avg Bid)
    €19 Keskimäär. tarjous
    5 tarjoukset

    we need a blockchain developer to fix an issue in our network. What should be fixed: - Unstable Network  - Upgrade Coin Wallets ( this mean upgrade servers and explorer and everything connected with our coin node ) We are looking for a long-term relationship, when everything is done!

    €137 (Avg Bid)
    €137 Keskimäär. tarjous
    7 tarjoukset

    the supply chain in the FCMG industry is currently trying to develop itself with the high trendiness of blockchain, due to that, it is required to make an academic research (thesis like) about what are the current practices used in the supply chain for the FCMG industry and what are the voids in those practices or issues that blockchain could solve. please keep in mind that the references should b...

    €207 (Avg Bid)
    €207 Keskimäär. tarjous
    35 tarjoukset

    The PoC is already developed for a healthcare organisation, the authority of data provided by the patient is to be set. Only who has worked on Hyperledger fabric shall bid.

    €7 - €18
    €7 - €18
    0 tarjoukset

    Need some expert writers who are experienced in cryptocurrency industry and blockchain technology. Technical writing experience is preferred. We need in-depth and well-researched articles.

    €66 (Avg Bid)
    €66 Keskimäär. tarjous
    21 tarjoukset

    Quisiera Vender mi proyecto ya Finalizado de una App que ayuda a vender o comprar BTC ya Operativo envia Notificaciones en base de los parametros que se le coloquen, Solo necesito saber si hay alguna persona interesada para Venderlo o Asociarnos.. Es importante señalar que este Sistema ya esta en uso Por un grupo de Trader lo cuales comprar suscripcion por el uso

    €384 (Avg Bid)
    €384 Keskimäär. tarjous
    4 tarjoukset

    I need a fully secure Cryptocurrency exchange open for customers in India with a few currencies already listed on it and should be equipped with full KYC.

    €629 (Avg Bid)
    €629 Keskimäär. tarjous
    14 tarjoukset
    Bitshare core Development 5 päivää left
    VARMENNETTU

    I want to build my own blockchain using Bitshare Core. If you have experience in Bitshare core blockchain, please contact me. I want to hire true developer. Regards.

    €503 (Avg Bid)
    €503 Keskimäär. tarjous
    21 tarjoukset

    Looking for a core wallet system for Ethereum, XRP, and ERC token system. The wallet will need to generate new address for users and it must be installed and tested correctly with no security flaws. It would be preferred if you know C++. and have solid security background.

    €378 (Avg Bid)
    €378 Keskimäär. tarjous
    13 tarjoukset
    digital currency based on bitcoin 4 päivää left
    VARMENNETTU

    I need a professional to program a digital currency based on bitcoin. 1 - Change the reward rule by mining. 2 - Start the coin mining process through my miners.

    €504 (Avg Bid)
    €504 Keskimäär. tarjous
    19 tarjoukset
    QT wallet UI update and adding graph 4 päivää left
    VARMENNETTU

    We are looking for someone that can do a full wallet re-design of a qt wallet to look something similar to the below. It should be done asap and also requires skills to be able to add a real-time graph like the example that will be getting the price of the coin and an option to see how much your coins were worth over a certain period of time. [kirjaudu nähdäksesi URL:n]

    €145 (Avg Bid)
    €145 Keskimäär. tarjous
    7 tarjoukset

    Just quite a simple task. The problem is I need to implement it with segwit to receive coin. The wallet can't receive coin ( not showing up in wallet for incoming coin ) but shows up in blockchain. Once you are done fixing, you will send me apk file to testnet before sending me the source code.

    €161 (Avg Bid)
    €161 Keskimäär. tarjous
    22 tarjoukset

    The requirements are been attached and bid only after reading the document ! The entire project is been already opensource where you need to run the opensource git and then customize few changes. *** Again Bid only those whom really can work on this ***

    €180 (Avg Bid)
    €180 Keskimäär. tarjous
    8 tarjoukset

    Hi, I thus need only experts who have already with with mining pools ! The requirements are been attached and bid only after reading the document ! The entire project is been already opensource where you need to run the opensource git and then customize few changes. *** Again Bid only those whom really can work on this ***

    €16 / hr (Avg Bid)
    €16 / hr Keskimäär. tarjous
    7 tarjoukset

    I'm looking for DAG expert. will discuss more via FL.

    €1167 (Avg Bid)
    €1167 Keskimäär. tarjous
    8 tarjoukset
    hyperledger fabric+APP 4 päivää left
    VARMENNETTU

    区块链-hyperledger fabric+APP开发: 开发一个基于区块链技术的区域能源自交易 APP

    €1877 (Avg Bid)
    €1877 Keskimäär. tarjous
    5 tarjoukset
    blockchain project 4 päivää left
    VARMENNETTU

    区块链-hyperledger fabric+APP开发: 开发一个基于区块链技术的区域能源自交易 APP

    €20 / hr (Avg Bid)
    €20 / hr Keskimäär. tarjous
    5 tarjoukset

    We are going to build a decentralized exchange until Nov 30th. We want to choose true freelancers who have experience in Decentralized Exchange Platform. Please start your proposal with "I can do" and share your built DEX platform. Automatic bids or copy & pasted bids will be rejected. Regards.

    €1744 (Avg Bid)
    €1744 Keskimäär. tarjous
    39 tarjoukset

    I need someone to help with gitian builder. It keeps failing with an miniupnpc checksum error. I need someone to fix my code so that i dont get this error and to fix any other errors that i might get after the miniupnpnc thing.

    €20 (Avg Bid)
    €20 Keskimäär. tarjous
    1 tarjoukset

    Hi, we are looking for freelancers who can help us customize certain open-source security solutions to use elements of blockchain ledgers and fit into our larger set of products and services. We might be interested in both project-based and pay-per-hour long term cooperation. The key requirements: - skilled at golang - experience with information security and ideally development of security prod...

    €19 / hr (Avg Bid)
    €19 / hr Keskimäär. tarjous
    23 tarjoukset

    Cryptocurrency exchange startup is looking for senior php developer. Your responsibilities as a member of dev. team would be to write from scratch the cryptocurrency exchange platform. Your key contribution to the team would be to bring the technical knowledge about cryptocurrency/blockchain technology and security best practices. Technical requirements - familiarity with *nix ecosystem is mandat...

    €2139 (Avg Bid)
    €2139 Keskimäär. tarjous
    53 tarjoukset

    We develop the game system separately. Please create a system that can purchase cards like the current Gods Unchained. Please collect all 10 packs and turn on the function which can display only rare. Please be sure to replace graphics. [kirjaudu nähdäksesi URL:n]

    €901 (Avg Bid)
    €901 Keskimäär. tarjous
    15 tarjoukset

    I need a coin for ICO. It should be listed on exchange

    €785 (Avg Bid)
    €785 Keskimäär. tarjous
    20 tarjoukset

    I know about cryptocurrency, but I am making no profit from it So I am in need of someone to teach me more about cryptocurrency Investments and al I need to know so as to make profit from it

    €676 (Avg Bid)
    €676 Keskimäär. tarjous
    18 tarjoukset
    Develop a paper wallet generator 2 päivää left
    VARMENNETTU

    We want to develop a paper wallet generator for use in Cryptoart ([kirjaudu nähdäksesi URL:n]). Specifically, we want to fork the code from [kirjaudu nähdäksesi URL:n], then slightly modify the results page to fit our needs. More information found here: [kirjaudu nähdäksesi URL:n]

    €1042 (Avg Bid)
    €1042 Keskimäär. tarjous
    27 tarjoukset

    We need a smart contract developed with the ERC721 token. An API or SDK will need to be developed as well to communicate with the smart contract to develop our Real Estate Dapp. See below for the Dapp functionality for our MVP. This could be a long term engagement for our full Dapp, if the MVP developed is up to our standard. *1.* Information Architecture - create a database that houses the UUI...

    €9968 (Avg Bid)
    €9968 Keskimäär. tarjous
    66 tarjoukset
    I NEED A FORKED EOS 2 päivää left
    VARMENNETTU

    Fork the EOS block chain for this project

    €3485 (Avg Bid)
    €3485 Keskimäär. tarjous
    24 tarjoukset

    I am looking for blockchain expert who can change design and integrate NEO into existing site built by Ruby on Rails. Here is the git repo of script. [kirjaudu nähdäksesi URL:n] And I need to integrate btc, ETH, ERC20 and NEO. I have design ready. Please only apply only when 1. you have portfolio of exchange platform you created. 2. you are expert in Ruby on Rails. Budget:3000 Timeline:...

    €2282 (Avg Bid)
    €2282 Keskimäär. tarjous
    27 tarjoukset

    I need an experienced blockchain developer to develop a Decentralised Exchange like [kirjaudu nähdäksesi URL:n] Presently the exchange allows ETH to ERC20 Tokens. I want One particular Token to ERC20 Tokens. Please bid.

    €925 (Avg Bid)
    €925 Keskimäär. tarjous
    27 tarjoukset
    Blockchain Developer 2 päivää left

    1. We are a Cryptocurrency Exchange based out of Lithuania 2. We are currently working on serving European Clients 3. We are in need of a Blockchain Developer who can support us for development and maintenance of our website/server and services 4. The Person should be well conversant with Website/Blog Creation, Server Set-Up, Blockchain Development 5. The Person would be hired as a Partner in the ...

    €11 / hr (Avg Bid)
    €11 / hr Keskimäär. tarjous
    9 tarjoukset
    Waves platform expert 1 päivä left
    VARMENNETTU

    I need a person who have worked on waves platform as a developer. I need some modification in waves platform open source mobile wallet application.

    €374 (Avg Bid)
    €374 Keskimäär. tarjous
    4 tarjoukset

    Rekisteröidy tai kirjaudu sisään nähdäksesi tiedot.

    Sinetöity Salassapitosopimus

    we need a platform which can be used to share files over blockchain (Metadata) . files encrypted and print them using a verified/trusted printer on blockchain to make sure copyrights of founder/designer are secured and his file is not leaked . more details could be found here : [kirjaudu nähdäksesi URL:n]

    €4775 (Avg Bid)
    €4775 Keskimäär. tarjous
    17 tarjoukset

    we need a platform which can be used to share files over blockchain (Metadata) . files encrypted and print them using a verified/trusted printer on blockchain to make sure copyrights of founder/designer are secured and his file is not leaked .

    €2515 (Avg Bid)
    €2515 Keskimäär. tarjous
    7 tarjoukset
    Finish a PHP project 1 päivä left
    VARMENNETTU

    Add these to my current project: - Comprehensive guide of how to run all commands in ubuntu to create, delete, set passwords to wallets. (create new wallet, balance of each wallet master and clients, log file of all transactions, get seed password from wallets, etc.) - error message if there’s not enough funds in the admin wallets (example: sorry maximum amount to exchange right now is 0....

    €377 (Avg Bid)
    €377 Keskimäär. tarjous
    24 tarjoukset
    Teach me some inside tech of crypto 1 päivä left
    VARMENNETTU

    I am more into crypto and developed an ecomerce store and had a coin developed from a dev before. I want to integrate that coin with my ecommerce store, I know basic knowlege but want to learn more technically in detail. Looking forward for a good teach in crypto. Thank you

    €539 (Avg Bid)
    €539 Keskimäär. tarjous
    5 tarjoukset

    Multi coin mining portal development Looking developer from Chennai only

    €388 (Avg Bid)
    €388 Keskimäär. tarjous
    9 tarjoukset
    Masternode ranking website 1 päivä left
    VARMENNETTU

    I am looking for someone to create masternode ranking website similar to: [kirjaudu nähdäksesi URL:n] [kirjaudu nähdäksesi URL:n] [kirjaudu nähdäksesi URL:n]

    €164 (Avg Bid)
    €164 Keskimäär. tarjous
    13 tarjoukset

    We are looking for bidders on virtual currency bank in Philippines Projects: 1. ERC-20 Coin creation 2. Coin white paper writing 3. VC-PHP Exchange core 4. Mobile app for the exchange 5. Web app for the exchange. Note: Should be in Philippines. Should be a legitimate entity [kirjaudu nähdäksesi URL:n]

    €2650 (Avg Bid)
    €2650 Keskimäär. tarjous
    30 tarjoukset

    Hello, there is a platform called Flixxo. Flixxo is a decentralized video sharing platform where people can earn tokens called "Flixx" by uploading videos or watching videos. I need help creating a smart contract to split the revenue earned between content creators and myself. I need you to set a smart contract as a withdrawal address And set the splitting of flixx tokens within that s...

    €564 (Avg Bid)
    €564 Keskimäär. tarjous
    22 tarjoukset
    i need changes for my ICO website 10 tuntia left
    VARMENNETTU

    website is built in lavarel, ubuntu make it mobile and iPAD responsive + deploy tokens (truffle) on mainnet.

    €157 (Avg Bid)
    €157 Keskimäär. tarjous
    15 tarjoukset

    Suosituimmat Blockchain -yhteisöartikkelit