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    187 web3 travaux trouvés au tarif de EUR
    PRIAM PROJECT S'est terminé left

    Blockchain, Solidity, Ethereum, hyperledger, Javascript, JSON, WEB3 * Freelance * 300 à 500€/J * PRIAM est une société de conseil spécialisée en blockchain. Afin de pouvoir répondre à une demande croissante de Proof of Concept, nous cherchons un développeur qui pourrait assister sur l'étude d’application de la block...

    €509 (Avg Bid)
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    8 offres

    1) Take the trust wallet app, create a login with username/password/email 2) Interface with web3/ethereum blockchain smart contract (example code from web app will be supplied) 3) Create interface to connect with external server API commands * Aka look up users * Send request to other user 4) Once this is working locally, then get it hosted on the ios store. I'll be doing the web server wor...

    €45 / hr (Avg Bid)
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    53 offres

    We need to add verification for request coming to our application(nodejs, express) is from our load balancer. The idea is to prevent Unauthorized access. Here is ready npm for that: [se connecter pour voir l'URL] So, only few lines of code needed to implement this. P.S If request cumming from Unauthorized address, nice message "You shall not pass" should be shown. The express code :...

    €27 (Avg Bid)
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    8 offres

    We need an experienced React developer who can make small changes to our dApp. The candidate must be familiar with Ethereum, Web3, OxJs as well as Redux and Redux-Saga. The Detailed specification will be provided via PM. If you work on this well, there will be more work for you.

    €438 (Avg Bid)
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    34 offres

    Full doc with examples and diagram (PLEASE READ BEFORE BID): [se connecter pour voir l'URL] Overview: Nodejs, express,web3, javascript Limitations: Non-Disclosure Agreement must be signed. I will grant github access to this project. Current flow - SEE DOC 1. We need to add affiliate code to our payment processor - Description: User make purchases at [se connecter pour voir l'URL] If th...

    €208 (Avg Bid)
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    6 offres

    HEROIC Cybersecurity ([se connecter pour voir l'URL]) is looking for an experienced Senior PHP Developer with strong skills in Laravel, and/or other PHP Frameworks, to join our growing team. As a Senior Developer, you will be responsible for helping to drive the development of sophisticated saas based cybersecurity solutions. The right candidate will possess senior level PHP experience with...

    €12 / hr (Avg Bid)
    À la une
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    114 offres

    I want you to build android app that can interact with my deployed smart contract using infura and web3. I am not much aware of how to create credential wallet file in android and then using it. There are already github projects about the same. You would need to explain me a bit on how to replace whatever credentials are required like i don't know what password is used for [se connecter pour...

    €115 (Avg Bid)
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    4 offres

    Meteor developers with experiences using: - React (Native) & Redux - Storybook - ES6+ and Webpack Bonus points for: - Blockchain (Ethereum and Smart contract) experience - [se connecter pour voir l'URL]

    €12 / hr (Avg Bid)
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    25 offres

    A plug-in for php e-commerce script, which will receive payments in ERC2O tokens and validate payment using soldity, web3.. etc, and confirm the payment for the delivery of digital product

    €131 (Avg Bid)
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    12 offres

    Full doc with examples: [se connecter pour voir l'URL] Overview: Nodejs, express,web3. Limitations: We prefer not to provide full payment processor code. I can provide the code actually do the transfer and [se connecter pour voir l'URL] We need to add affiliate code to our payment processor - Description: User make purchases at [se connecter pour voir l'URL] If that transaction suc...

    €20 (Avg Bid)
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    3 offres
    Project for Mochuan X. S'est terminé left

    Hi, I wish to chat about your blockchain experience, looking to hire developer for coin integration into web3 wallet.

    €2672 (Avg Bid)
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    1 offres

    I need quick source code send transaction ERC20 preferably USD Coin (USDC) using web3 nodejs , docs -> [se connecter pour voir l'URL], I can set ABI, fee and amount, bid only knows ethereum smart contract.

    €150 (Avg Bid)
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    8 offres

    I need quick source code send transaction ERC20 preferably USD Coin (USDC) using web3 nodejs , docs -> [se connecter pour voir l'URL], I can set ABI, fee and amount, bid only knows ethereum smart contract.

    €27 (Avg Bid)
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    3 offres

    I need quick source code send transaction ERC20 preferably USD Coin (USDC) using web3 nodejs , docs -> [se connecter pour voir l'URL], I can set ABI, fee and amount, bid only knows ethereum smart contract.

    €20 (Avg Bid)
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    4 offres

    i have a small task to do [se connecter pour voir l'URL] installation on server and run it for end points

    €18 (Avg Bid)
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    5 offres

    We're a blockchain startup who's looking for a Solidity developer, who can write smart contracts for the Ethereum blockchain. We need to create a very simple decentralized autonomous organization, which basically is a ERC-20 token with fixed supply, but must also include smart contracts for membership, voting on proposals and, of course, Web3-integration. We need a simple website, where ...

    €1382 (Avg Bid)
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    23 offres

    Mr. Mark has written his will. According to his will if his son Jack successfully gets his undergrad degree then he will be entitled to get his share of money from Mr. Mark's wealth. If not, then the money will go to an NGO(that helps homeless) and Jack will get nothing. For This purpose Mr. Mark, writes a smart contract and deploys it. Before deploying the smart contract Mr. Mark generate...

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    10 offres

    Mr. Mark has written his will. According to his will if his son Jack successfully gets his undergrad degree then he will be entitled to get his share of money from Mr. Mark's wealth. If not, then the money will go to an NGO(that helps homeless) and Jack will get nothing. For This purpose Mr. Mark, writes a smart contract and deploys it. Before deploying the smart contract Mr. Mark generate...

    €31 (Avg Bid)
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    4 offres

    Currently searching for a Solidity developer proficient with Web3, NFTs, and smart contract specifications/standards. Candidate has knowledge of distributed architectures and is able to use developer tools and frameworks (Remix, Tron Studio, E/TVM). Understands standard security concepts to prevent exploits such as false contract kills, transfer, etc. Initial tasks are writing distributed code...

    €385 (Avg Bid)
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    20 offres

    Hey! We're a new york based startup working on a proof-of-stake related product that is going to change the staking ecosystem. We're looking for developers passionate and knowledgeable about crypto who'll be down to ride with us as we try and flip the game upside down. Must be familiar with: - Proof-of-Stake - Stake Delegation - Tezos and Cosmos - Vue, Vuex, Javascript Must speak ...

    €47 / hr (Avg Bid)
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    25 offres
    Solidity Developer S'est terminé left

    ABOUT THE COMPANY: Meritocratic financial technology company grounded in the scientific approach. Will provide you clearly defined tasks, timely feedback and powerful computing resources. Looking to build a long term working relationship rather than a one-off gig. NATURE OF WORK: Working on developing and maintaining company's ERC20 token. BASE REQUIREMENTS: > Familiarity with upgradeab...

    €19 / hr (Avg Bid)
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    17 offres

    Must understand REACT, WEB3 MSSQL and have GOOD Communication Skills ASP.NET /ANGUALR...We make project contract based but only 60% of full project We will give you tasks via JIRA and SLACK

    €1079 (Avg Bid)
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    37 offres

    I need a simple laravel page that able to transfer , get balance and create wallet for my erc20 eth token. the pages must integrate with [se connecter pour voir l'URL] and [se connecter pour voir l'URL] for wallet management. I don't need any nice design just these few functionality thanks

    €99 (Avg Bid)
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    3 offres

    I need a simple laravel page that able to transfer , get balance and create wallet for my erc20 eth token. the pages must integrate with [se connecter pour voir l'URL] and [se connecter pour voir l'URL] for wallet management. I don't need any nice design just these few functionality thanks

    €155 (Avg Bid)
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    16 offres

    We need a React Native developer to build a cryptocurrency wallet mobile application. The mobile app should be almost similar to Jaxx and it should provide basic wallet functionalities for multiple cryptocurrencies and smart exchange functionality using ShapeShift. Required functionalities are; - multi-factor authentication - finger-print authentication - generate wallet for chosen cryptocurrenc...

    €1592 (Avg Bid)
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    25 offres
    ReactJS Web Application S'est terminé left

    I'm looking to get a ReactJS web application built. This project is only concerned with building out the front-end of the application. I'll be connecting all the buttons/elements manually after the project is completed. This project is concerned with Web3 so it's a bonus if you're familiar with that. It is only 3 dynamic pages but it also needs to have certain responsive and a...

    €1113 (Avg Bid)
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    77 offres

    Hey there! I have a truffle unit with a payment channel. Everything work, including the test (see screen 1). But when I tried to manually get R S V from metamask or the signed signature (before ECRecovery it was asking R S V and the hash as arguments), it's not matching with the truffle one even if I use the same accounts and network. Anyone can make me a small JS function that is able to ...

    €33 (Avg Bid)
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    2 offres
    EQUAL NETWORK S'est terminé left

    EQUAL NETWORK is a Melbourne based Blockchain startup with a clear vision of simplifying the Blockchain experience, The current pillar of EQL is our Web3 wallet which enables users to simply interact with ethereum Blockchain. The company has spawned from humble beginnings but is on track to be the front runner in the space. The EQL Team You will be a part of the EQL Blockchain team, an innovati...

    €36 / hr (Avg Bid)
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    25 offres

    I have Solidity code which have several functions. You need to call only function and make transaction by using [se connecter pour voir l'URL]

    €171 (Avg Bid)
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    5 offres
    homies-blockchain S'est terminé left

    creation of website for a real state invert platform based on blockchain tokens. We need a programmer with experience: angular 2-4 javascript solidity html5 bootstrap ionic framework. firebase. encryption protocols web3 ethereum blockchain

    €19 / hr (Avg Bid)
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    34 offres

    Hello everyone We're a content platform with decentralized governance focused on everything crypto and blockchain, and we are now looking for writers to contribute on a weekly basis. Your chance to emerge into hip blockchain industry as a writer / researcher, as we partnered up with some major industry players like Web3 Foundation and some others. This is how it works: you contribute an o...

    €25 (Avg Bid)
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    38 offres

    I need a simple laravel page that able to transfer , get balance and create wallet for my erc20 eth token. the pages must integrate with [se connecter pour voir l'URL] and [se connecter pour voir l'URL] for wallet management. I don't need any nice design just these few functionality thanks

    €176 (Avg Bid)
    €176 Offre moyenne
    19 offres

    Hello, I have a project on remix which works when environment is javascript VM, but when I try to deploy it on [se connecter pour voir l'URL], I can't run the functions correctly. I am stuck and don't know if there are some problems with my solidity code. I will give 20$ for resolving this issue and making my smart contract work on GUI (namely, Chrome browser). The price for resolvi...

    €23 (Avg Bid)
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    3 offres

    Hello, I have a project on remix which works when environment is javascript VM, but when I try to deploy it on [se connecter pour voir l'URL], I can't run the functions correctly. I am stuck and don't know if there are some problems with my solidity code. I will give 20$ for resolving this issue and making my smart contract work on GUI (namely, Chrome browser). The price for resolvi...

    €23 (Avg Bid)
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    3 offres

    Hi currently we have an ethereum decentralized exchange built and need help with the UI UX. We need an ethereum front end developer with experience in metamask, [se connecter pour voir l'URL], and react. To help with connecting ethereum smart contracts with an existing front end and make other customizations. Having full stack experience will be beneficial to assist us with any other of o...

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    50 offres
    BlockChain Tutor S'est terminé left

    Need someone who is competent with blockchain development to help me finish a course and fast-track my learning endeavors. Ideal candidate is familiar with ganache, [se connecter pour voir l'URL], ethereum, and smart contract development.

    €113 (Avg Bid)
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    9 offres
    Need web3.js Expert S'est terminé left

    I need [se connecter pour voir l'URL] expert to develop DApp for smart contract. Must expert in HTML5, Css, JavaScript & [se connecter pour voir l'URL] skills to fulfill my needs.

    €130 (Avg Bid)
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    5 offres

    we are looking fir web3 js expert who call functions from contract and implement them in front end. you must be very good at css and jquery to wok on this lowest bidder will be preferred

    €118 (Avg Bid)
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    8 offres
    web3 js expert needed S'est terminé left

    we are looking fir web3 js expert who call functions from contract and implement them in front nd. you must be very good at css and jquery to wok on this lowest bidder will be preferred

    €85 (Avg Bid)
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    5 offres

    we are looking for smart contract developers having good knowledge of solidity language to compile and deploy contracts and use web3 to get it done on front end

    €232 (Avg Bid)
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    6 offres
    Web Dapp with Ethereum S'est terminé left

    Hi, Simply, I need a blockchain programmer. You dont have to be an expert. I just need to "interact" with the ethereum blockchain, that means: Knowing how to implement: - Truffle Framework - Web3 - Solidity Language The idea is to create a web dapp for exchanging currencies, see (mine is simplier, dont worry coders): [se connecter pour voir l'URL] [se connecter pour voir l'...

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    27 offres

    We are building an application that will use an internal currency. Content creators get the currency for views & users get daily login bonuses, then the currency can be used to pay for premium services. All operations relating to this currency will take place via API and not in the application itself. We're using loopback to easily create the APIs, but we need someone to write the JS cod...

    €506 (Avg Bid)
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    12 offres
    Solidity Developer S'est terminé left

    Looking for a developer with great nodejs and Solidity skills to join a team building a decentralized betting application. Responsibilities * Create and test smart contracts * Create and test APIs that interact with smart contracts * Help specify and construct off-chain components of new distributed protocols * Build automation around operating a blockchain-based system * Writing specs for...

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    36 offres
    €385 Offre moyenne
    8 offres

    Web3 simple wallet developer (web)

    €139 (Avg Bid)
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    5 offres

    Associare funzione random al fronte end

    €16 / hr (Avg Bid)
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    6 offres
    Web3 developer S'est terminé left

    I need web3 developer to handle some tasks. English fluency is required.

    €386 (Avg Bid)
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    20 offres

    I need someone who knows sth. about cryptocurrencies the MetaMask web extension and [se connecter pour voir l'URL] to help me with a website for a client. You can see exactly what we need here: [se connecter pour voir l'URL] but be aware that you can use this example only correct with the metamask web extension on your browser. I got the website design in wordpress, but now we need the ...

    €140 (Avg Bid)
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    8 offres

    i am currently building an Ethereum Wallet in electron with Javascript (node.js) im currently trying to create address but what every i seem to do i get an error . TypeError [se connecter pour voir l'URL] is not a function at [se connecter pour voir l'URL] Im looking for someone to fix this and tell me how they did it.

    €22 (Avg Bid)
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    7 offres

    i am currently building an Ethereum Wallet in electron with Javascript (node.js) im currently trying to create address but what every i seem to do i get an error . TypeError [se connecter pour voir l'URL] is not a function at [se connecter pour voir l'URL] Im looking for someone to fix this and tell me how they did it.

    €180 (Avg Bid)
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    14 offres