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. Blockchain Developers İşe Alın

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    we have an ERC20 token smart contract implemented, but it doesn't have the precise voting mechanics, we want to be able to enable the voting mechanics in there. Please fix the problems exist with the smart contract and implement a voting mechanism

    €510 (Avg Bid)
    Özellikli
    €510 Ortalama Teklif
    9 teklifler

    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. [login to view URL]

    €197 (Avg Bid)
    €197 Ortalama Teklif
    2 teklifler
    Develop ICO Website 6 gün left
    ONAYLI

    Develop the ICO website with full function. You must have to have previous project source code. We need immediately so if you want to start from scratch don't bid. Submit your ICO website I'll check all function and send you a private message. Thanks!

    €246 (Avg Bid)
    €246 Ortalama Teklif
    11 teklifler

    Hi my company is about to start an ICO within 2 weeks (30th of November 2018) I need to list my ICO on token exchange platforms, such as - [login to view URL] - [login to view URL] - [login to view URL] - [login to view URL] - [login to view URL] - [login to view URL] I need support to do this, with a special attention over the issue of KYC and AML

    €3648 (Avg Bid)
    €3648 Ortalama Teklif
    9 teklifler

    I want to start a company for ASIC mining chips...need engineers and software developers.

    €1477 (Avg Bid)
    €1477 Ortalama Teklif
    10 teklifler

    Hi, Iam interested in learning Block chain technology. I want practical exposure on languages or tools like Solidity, Ethereum, Smart contract, Golang etc.. Looking for a professional who is currently working on Block Chain technology.

    €18 - €153
    €18 - €153
    0 teklifler

    Hi, We have a website in Drupal and I would need an expert to integrate coingate or coinbase Bitcoin payment on the website. I can share the API keys with the developer.

    €117 (Avg Bid)
    €117 Ortalama Teklif
    2 teklifler

    I want to develop a proof of stake cryptocurrency with masternode probably a fork of PIVX including a qt wallet and develop an API for merchant to receive payments.

    €551 (Avg Bid)
    €551 Ortalama Teklif
    9 teklifler

    Female Programmer is needed for a block chain App project more info will be given after a short interview on chat, email, Skype call

    €1151 (Avg Bid)
    €1151 Ortalama Teklif
    4 teklifler

    Master node coin Developer! I'm looking blockchain developer who can fork DASH. You must have to have experience! Submit your previous project link! Without a link, I won't reply to your message whatever you submit!

    €836 (Avg Bid)
    €836 Ortalama Teklif
    15 teklifler

    I want to launch a US Corporation that will churn out Apps and Software Products, one every few weeks and ultimately becomes one of the Major Software companies and can compete with CA/Microsoft/Oracle/IBM etc. I am looking for partners/co-founders/ who can contribute their work to this project and make it a success. My role will be to bring every contributor to the project together and invest the...

    €19 / hr (Avg Bid)
    €19 / hr Ortalama Teklif
    7 teklifler

    I'd like to build a trading engine with using REST API. These are the optional api service what I am thinking of. - [login to view URL] - [login to view URL] - [login to view URL] I wish to develop a trade engine based on rest api preferrably, I have to develop and plug/play existing module to existing backend system. Trading Engine Specs - Node.js as api server - Mongo as database Pleas...

    €419 (Avg Bid)
    €419 Ortalama Teklif
    15 teklifler

    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

    €1246 (Avg Bid)
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    13 teklifler

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

    €140 (Avg Bid)
    €140 Ortalama Teklif
    5 teklifler

    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

    €579 (Avg Bid)
    €579 Ortalama Teklif
    16 teklifler

    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)
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    8 teklifler

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

    €1257 (Avg Bid)
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    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. ([login to view URL]) 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 for is a website ...

    €751 - €1502
    Özellikli Mühürlü
    €751 - €1502
    26 teklifler

    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)
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    16 teklifler

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

    €38 (Avg Bid)
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    4 teklifler
    ICO whitepaper writing 4 gün left
    ONAYLI

    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.

    €18 (Avg Bid)
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    6 teklifler

    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!

    €138 (Avg Bid)
    €138 Ortalama Teklif
    7 teklifler

    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...

    €205 (Avg Bid)
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    34 teklifler

    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.

    €27 (Avg Bid)
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    1 teklifler

    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.

    €69 (Avg Bid)
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    22 teklifler

    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 Ortalama Teklif
    4 teklifler

    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.

    €590 (Avg Bid)
    €590 Ortalama Teklif
    16 teklifler
    Bitshare core Development 3 gün left
    ONAYLI

    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.

    €505 (Avg Bid)
    €505 Ortalama Teklif
    21 teklifler

    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.

    €379 (Avg Bid)
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    13 teklifler

    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.

    €505 (Avg Bid)
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    19 teklifler

    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. [login to view URL]

    €146 (Avg Bid)
    €146 Ortalama Teklif
    7 teklifler

    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.

    €160 (Avg Bid)
    €160 Ortalama Teklif
    23 teklifler

    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 ***

    €181 (Avg Bid)
    €181 Ortalama Teklif
    8 teklifler

    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 Ortalama Teklif
    7 teklifler

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

    €1169 (Avg Bid)
    €1169 Ortalama Teklif
    8 teklifler
    hyperledger fabric+APP 2 gün left
    ONAYLI

    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

    €1880 (Avg Bid)
    €1880 Ortalama Teklif
    5 teklifler
    blockchain project 2 gün left
    ONAYLI

    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 Ortalama Teklif
    5 teklifler

    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.

    €1646 (Avg Bid)
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    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 Ortalama Teklif
    1 teklifler

    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)
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    23 teklifler

    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...

    €2142 (Avg Bid)
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    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. [login to view URL]

    €902 (Avg Bid)
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    I need a coin for ICO. It should be listed on exchange

    €802 (Avg Bid)
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    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

    €648 (Avg Bid)
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    We want to develop a paper wallet generator for use in Cryptoart ([login to view URL]). Specifically, we want to fork the code from [login to view URL], then slightly modify the results page to fit our needs. More information found here: [login to view URL]

    €1044 (Avg Bid)
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    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...

    €9985 (Avg Bid)
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    66 teklifler
    I NEED A FORKED EOS 11 saat left
    ONAYLI

    Fork the EOS block chain for this project

    €3490 (Avg Bid)
    €3490 Ortalama Teklif
    24 teklifler

    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. [login to view URL] 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: 40days Looking ...

    €2298 (Avg Bid)
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    28 teklifler

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

    €911 (Avg Bid)
    €911 Ortalama Teklif
    28 teklifler

    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 Ortalama Teklif
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    Önde Gelen Blockchain Topluluk Makaleleri