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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. Contratar a Blockchain Developers

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    57 trabajados encontrados, precios en USD
    Work on PIVX Fork blockchain - C++ 6 días left
    VERIFICADO

    We're offering ongoing, hourly work to a C++ dev for a PIVX fork blockchain. If you're familiar with masternodes and PoS blockchains, tell us about your experience. Also, what is your availability regarding number of hours you can work?

    $41 / hr (Avg Bid)
    $41 / hr Oferta Promedio
    7 ofertas

    I need an Android app. I would like it designed and built. I need an exchange wallet app for my Starr coin Its is a new coin on a new block chain

    $279 (Avg Bid)
    $279 Oferta Promedio
    6 ofertas
    Trophy icon Airdrop Place Logo 2 días left

    Hey everyone! I am looking for professional logo for an airdrop listing site. Here are some examples of other sites that do the exact same thing: [iniciar sesión para ver URL] [iniciar sesión para ver URL] [iniciar sesión para ver URL] The site will be held at [iniciar sesión para ver URL] I am looking for modern and clean designs. It's okay for the...

    $25 (Avg Bid)
    Garantizado
    $25 Oferta Promedio
    3 participaciones

    I need an Android app. I would like it designed and built. I need a cryptocurrency wallet app for my cryptocurrency

    $25 (Avg Bid)
    $25 Oferta Promedio
    1 ofertas
    $997 Oferta Promedio
    20 ofertas

    im wanting a qoutee for somebody to enter crypto currency payments and wallets into my site

    $1031 (Avg Bid)
    $1031 Oferta Promedio
    10 ofertas

    I need help to understand how to do it The program should: publish on testnet assume a local Bitcoin testnet node is running calculate the appropriate fees

    $64 (Avg Bid)
    $64 Oferta Promedio
    1 ofertas

    I need to IMPLEMENT the core technologies comprising one or several of these areas: - Distributed databases - Cloud computing-related - Distributed systems - Consensus (Paxos, state replication...) - Fault tolerance in distributed systems - Cloud systems networking - Blockchain Languages: primarily Go. Not mandatory.

    $36 / hr (Avg Bid)
    $36 / hr Oferta Promedio
    2 ofertas

    Details of work: ▽ Purpose and overview of system development request I'd like to create tokens based on Ethernet, We are looking for developer who can create Smart Contract using Solidity. We will contact you for the content of the Smart Contract you want to create. (The content that you would like to request is not a complicated content. I'd like to include a safe source code using a ...

    $1366 (Avg Bid)
    $1366 Oferta Promedio
    29 ofertas

    in order to be eligble for the NoS presale i have to develop a proof of concept Dapp on their platform. I have very limited coding skills and won´t be able to succsed myself therefore i want you to create this Dapp for me, it can be anything you like preferbly as simple as possible as long as it´s accepted by the founders of NoS. I know that making a proof of concept app is really si...

    $125 (Avg Bid)
    $125 Oferta Promedio
    3 ofertas

    Looking for Bitgo Wallet Expert for long term position

    $2969 (Avg Bid)
    $2969 Oferta Promedio
    25 ofertas

    looking for someone to code to find bittorrent tracker is working or not. in php or node js

    $133 (Avg Bid)
    $133 Oferta Promedio
    7 ofertas
    Teach me to write truffle tests 6 días left
    VERIFICADO

    I want to learn to write tests in javascript. I have very little time to finish a project and need some assistance

    $31 (Avg Bid)
    $31 Oferta Promedio
    4 ofertas

    Hello! I would like a READY MADE Bitcoin Lottery Script. It needs to be already developed/ready to be delivered and you need to have a demo available. Experience in PHP, Bitcoin and Blockchain is a requirement.

    $73 (Avg Bid)
    $73 Oferta Promedio
    4 ofertas

    Talented crypto developer wanted for s revolutionary project. IMPORTANT: Please note the team will get paid with our company token. We are looking for ONLY 2 more developers to be part our team. Our team is international and it's a great opportunity to get involved in the development of something never made before! Make sure to bid only if you agree with those conditions thanks.

    $610 (Avg Bid)
    $610 Oferta Promedio
    14 ofertas

    We are an ethereum clone masternode cryptocurrency project that is a few months old, listed on several exchanges and looking to add to our team. Various positions available including marketing, community management, development/design and many others. Very promising blockchain project growing very quickly! We pay in crypto currency

    $178 (Avg Bid)
    $178 Oferta Promedio
    23 ofertas

    Talented crypto developer wanted for s revolutionary project. IMPORTANT: Please note the team will get paid with our company token. We are looking for ONLY 2 more developers to be part our team. Our team is international and it's a great opportunity to get involved in the development of something never made before! Make sure to bid only if you agree with those conditions thanks.

    $1393 (Avg Bid)
    $1393 Oferta Promedio
    12 ofertas

    I have a new site that is like Quora and I'm looking for someone who can ask and answer common questions regarding Crypto currency to simulate content and activity on the site.

    $7 / hr (Avg Bid)
    $7 / hr Oferta Promedio
    13 ofertas

    I have a new site that is like Quora and I'm looking for someone who can ask and answer common questions regarding Crypto currency to simulate content and activity on the site.

    $7 / hr (Avg Bid)
    $7 / hr Oferta Promedio
    9 ofertas

    BUILD A ERC-20 CONTRACT LIKE EOS

    $1437 (Avg Bid)
    $1437 Oferta Promedio
    9 ofertas

    I need fully a crypto currency exchange like bitbns

    $2466 (Avg Bid)
    $2466 Oferta Promedio
    24 ofertas

    setup forkdelta from their public github on our ubuntu instance use a public privity node

    $8 / hr (Avg Bid)
    $8 / hr Oferta Promedio
    10 ofertas

    setup forkdelta from their public github on our ubuntu instance use a public privity node

    $34 (Avg Bid)
    $34 Oferta Promedio
    4 ofertas
    blockchain expert needed 4 días left
    VERIFICADO

    i m looking for a block-chain expert who have knowledge in coin, exchange , chain and smart contract Development, only bid only if you have solid skills above area. need to show demo to get this job

    $1193 (Avg Bid)
    $1193 Oferta Promedio
    33 ofertas

    background:The BON introduces a new blockchain architecture designed to achieve vertical and horizontal scaling of distributed applications. Open networks provide account, authentication, database, asynchronous communication, and application scheduling across multiple CPU cores or clusters. The resulting technology is a blockchain architecture that eliminates user fees and allows developers to qui...

    $4366 (Avg Bid)
    $4366 Oferta Promedio
    24 ofertas

    I'm looking for experienced developer in Blockchain development. You have to describe your opinion about Blockchain development and send your links concerned with this.

    $4172 (Avg Bid)
    $4172 Oferta Promedio
    40 ofertas
    Test and Audit Smart Contracts 3 días left
    VERIFICADO

    We will be awarding this project to multiple developers. We want developers to rigorously test and audit a few smart contracts. For every loop hole or security issue found, a bonus will be released. To be awarded this project find at least one security issue in the files attached and send it in as a message.

    $130 (Avg Bid)
    $130 Oferta Promedio
    5 ofertas

    I need to upgrade this fork of Litecoin: [iniciar sesión para ver URL] A new repository with new github account needs to be created. THIS PROJECT REQUIRES ALL WALLET VERSIONS TO BE UPGRADED to reflect the most recent changes to the Litecoin Core. In addition to upgrading ALL wallet versions to reflect the most stable version of Litecoin, I will need a blockchain explorer and a basic websit...

    $1449 (Avg Bid)
    $1449 Oferta Promedio
    26 ofertas

    I want to hire an expert who well versed at Blockchain and Bitcoin...

    $526 (Avg Bid)
    $526 Oferta Promedio
    32 ofertas

    Hello, i want a decentralized peer to peer exchange done based on Ethereum. I want custom design,charts,good interface done and some other special features.

    $2893 (Avg Bid)
    $2893 Oferta Promedio
    37 ofertas
    ICO Quora Posts 3 días left
    VERIFICADO

    Need a mass Quora posts that links back to a project. I'll pay 30 seconds per post.

    $466 (Avg Bid)
    $466 Oferta Promedio
    5 ofertas
    Open Blockchain 2 días left

    We are a blockchain for Global Traders Agreement and Deliveries. We are starting ICO by October We Need Experienced community manager and telegram moderators for our Korea, Chinese and Japanese communities. Basic skills: Telegram Add Users based on your location Good interaction and conversation with community in your language and English Availability

    $831 (Avg Bid)
    $831 Oferta Promedio
    12 ofertas
    Confidence Coin 2 días left

    I am a professional java developer, and I need help with my Java project. I created many tasks on my Github repo. Please take a look and tell me what of them you would like to do. If I like your work, I will hire you again. Repo: [iniciar sesión para ver URL] Website: [iniciar sesión para ver URL]

    $175 (Avg Bid)
    $175 Oferta Promedio
    7 ofertas
    Crypto QT wallet Re-design 2 días left
    VERIFICADO

    We are looking for someone that can do a full wallet re-design of a qt wallet to look something similar to this. [iniciar sesión para ver URL]

    $637 (Avg Bid)
    $637 Oferta Promedio
    22 ofertas
    Masternode Listing Script 2 días left
    VERIFICADO

    I need masternode listing script it will get infos from back end and will show on front end. You can see here ex: [iniciar sesión para ver URL], mnrank.com. If you dont know anything about masternode please dont bid

    $182 (Avg Bid)
    $182 Oferta Promedio
    8 ofertas

    background:The BON introduces a new blockchain architecture designed to achieve vertical and horizontal scaling of distributed applications. Open networks provide account, authentication, database, asynchronous communication, and application scheduling across multiple CPU cores or clusters. The resulting technology is a blockchain architecture that eliminates user fees and allows developers to qui...

    $167 (Avg Bid)
    $167 Oferta Promedio
    9 ofertas
    Trophy icon Design a Blockchain Logo 25 días left

    Design a sleek and minimalist logo for CryptoJobs: [iniciar sesión para ver URL]

    $10 (Avg Bid)
    $10 Oferta Promedio
    62 participaciones

    i need a blockchain and a cryptocurrency like [iniciar sesión para ver URL] But my coin will have extra functionality

    $5355 (Avg Bid)
    $5355 Oferta Promedio
    16 ofertas

    Hi. I am a university student I have to do a Decentralized Voting System using blockchain. System should includes the following components. *Firstly, Registration model is a service for authenticating and registration of legitimate voters. This can be done by online registration, And also, the system includes a registration system for candidates. This can be done at the Election Department. ...

    $1291 (Avg Bid)
    $1291 Oferta Promedio
    16 ofertas

    I need a blog writer who has intermediate to professional knowledge in the ‘Bitcoin and Cryptocurrency’ niche. I am looking for a strong long-term relationship and a dedicated writer for our website. Long-term would mean, writing 8-10 articles per month, maybe more. Before going ahead with the long-term work, I would like to award a small project of 3 articles. This project will help m...

    $15 (Avg Bid)
    $15 Oferta Promedio
    8 ofertas
    Bitcoin Auto Mining 1 día left
    VERIFICADO

    I need a professional expert to setup bitcoin auto mining By applying this, you are agreed that you will deliver proposal, attend interview and need to sign NDA about not reuse or publish or share the code or part of the code to others. ---------------------------------------------------------------------------------------------------------------------- Please develop proposal (max 3 pages) sho...

    $424 (Avg Bid)
    $424 Oferta Promedio
    16 ofertas

    Hello all , I have some cryptos ( bitcoin,eth ) which I want to invest in business to earn more cryptos or money. I need ideas from the right freelancer who would help me and guide me in the right direction. Please if u know about cryptocurrency business , then apply.

    $53 / hr (Avg Bid)
    $53 / hr Oferta Promedio
    27 ofertas

    Looking for expert white paper writer who has technical skills and knowledge and experience to write white papers for different ICO's If you have written whitepaper for an exchange website it will be a plus Must have good knowledge on blockchain, whitepaper, bitcoin, ICO and crpytocurrency

    $587 (Avg Bid)
    $587 Oferta Promedio
    18 ofertas

    We are looking for web dev with experience in Binance API.

    $1496 (Avg Bid)
    $1496 Oferta Promedio
    23 ofertas

    Looking for a very experienced developer for a project. you will work with our team to design the Multichain blockchain for our remittances business. We would also want a UI developed as well as and app for mobile users. We have full details about the project that we are willing to share upon reques

    $2843 (Avg Bid)
    $2843 Oferta Promedio
    58 ofertas

    I am looking for senior smart contract developer having experience in ICO, token and smart contract, dapp development This will be the long term position. We are building e-sports platform and we are going to integrate blockchain technologies to our platform. You should answer our some questions, this is for selecting right candidate. please have a look our questions and bid here with answers I...

    $23 / hr (Avg Bid)
    $23 / hr Oferta Promedio
    38 ofertas

    Hello. I want a dice game website based on crypto as well as fiat currency. Requirement 1) Dice Game 2) List number of cryptocurrency in payment mode as well as VISA & Mastercard also

    $24 / hr (Avg Bid)
    $24 / hr Oferta Promedio
    20 ofertas

    I am in search of a new freelancer who has extensive knowledge about Blockchain as my previous freelancer has left. Most of our article are related to Token-Curated Registries. Since I have interviewed many candidates, but they don't have good skills, I have posted this on Freelancer. The selected freelancer will have to write a small sample of 300-350 words before I hire him permanently for...

    $11 / hr (Avg Bid)
    $11 / hr Oferta Promedio
    19 ofertas

    I want to create a pbot for bitmex

    $35 (Avg Bid)
    $35 Oferta Promedio
    2 ofertas

    Basically, What I am looking for is someone who knows the ethereum blockchain (i don't mean the ideas, I mean the code). It's so complex and maybe there exists someone who understands how to modify ethereum code .

    $165 (Avg Bid)
    $165 Oferta Promedio
    8 ofertas