Ethereum is a decentralized platform that runs smart contracts- applications that run exactly as programmed without any possibility of downtime, censorship, fraud or third party interference. De 38,718 opiniones, los clientes califican nuestro Ethereum Developers 4.8 de un total de 5 estrellas.
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    17 trabajados encontrados, precios en USD
    React.js & Smart Contract -- 2 6 días left

    The work is to develop & Improve some React.js & Smart Contract sections.

    $113 (Avg Bid)
    $113 Oferta promedio
    96 ofertas

    Building an application based on EnergyWeb chain. Need someone with ideas/experience with blockchain concepts and skills listed. Must be able to perform basic interface creation and backend development to implement features and concepts in REACT UI, NodeJS, TypeORM, Ethers, Solidity architecture

    $35 / hr (Avg Bid)
    $35 / hr Oferta promedio
    66 ofertas
    Polygon Blockchain - React + Node 4 días left


    $14 / hr (Avg Bid)
    $14 / hr Oferta promedio
    27 ofertas
    Blockchain Cardano Devloper -- 2 4 días left

    We are seeking a highly skilled and motivated Blockchain Cardano Developer to join our team. The successful candidate will be responsible for designing and developing decentralized applications (dApps) on the Cardano blockchain platform. They will work closely with our team of developers, as well as the Cardano community, to identify and implement new features, troubleshoot and debug code, and improve the overall performance of the Cardano blockchain. Responsibilities: Design and develop dApps on the Cardano blockchain platform Write smart contracts using Solidity and Haskell Collaborate with the Cardano community to identify and implement new features Troubleshoot and debug code Collaborate with other developers to improve the overall performance of the Cardano blockchain Requirements: ...

    $1763 (Avg Bid)
    $1763 Oferta promedio
    16 ofertas
    Create Crypto Token 3 días left

    Dear Freelancers I would to create a new token so looking for someone who can take the project end to end creating the white paper and all details about the created token Lower price freelancer will be awarded

    $635 (Avg Bid)
    $635 Oferta promedio
    34 ofertas

    Requirements ONLY APPLY IF YOU CAN PASS THE TEST TASK MUST BE LOCATED IN NORTH AMERICA, EUROPE, SOUTH AMERICA TO BE CONSIDERED Why Consider This? NFT is a growing and emerging market! Sales volume reached $2.5 Billion in the first half of 2021, up from $13.7 million in the first half of 2020. This role is 100% remote forever, and crucial in helping our Enterprise Clients launch and deliver NFT solutions to enterprise companies that are fast, reliable, and have a global impact. Partnering with the best platforms and companies in the world to craft NFT solutions that can have a global impact on millions of lives. Mentorship from our Founder, a Software Engineer by trade, that has a passion for developing every team member. The Founder and team will work closely with this perso...

    $4386 (Avg Bid)
    $4386 Oferta promedio
    11 ofertas

    Simple one page that will create/start contracts on 3 chains. Default supply of the contract will be 10,000,000. Fill out the basic info and select the chain to create the contract on. After the contract is created then it us usable in the bottom section to mint an item. The only options on the bottom will be for the contracts started. This will not be a swap or anything like that. It will not mint on all 3 chains at once. Only the chain selected in the network drop down that includes contracts started in the top section. The options should be pretty straight forward. If I am missing any required items for the contract start or mint then please let me know. Images will be uploaded from the local computer, stored and url supplied in the metadata. Trait type will just be one, trait_ty...

    $563 (Avg Bid)
    $563 Oferta promedio
    29 ofertas

    Ruby on Rails/Blockchain Developer for NFT Site

    $24 / hr (Avg Bid)
    $24 / hr Oferta promedio
    42 ofertas
    Smart Contract development 2 días left

    Need to copy a smart contract in bsc chain and deploy

    $251 (Avg Bid)
    $251 Oferta promedio
    27 ofertas
    need a blockchain integration dev 2 días left

    need to connect the front end to the smart contract. web3js or etherjs

    $5 / hr (Avg Bid)
    $5 / hr Oferta promedio
    19 ofertas

    write an article 800 words about P2E nft game. the main condition is experience in the field of nft.

    $497 (Avg Bid)
    $497 Oferta promedio
    18 ofertas

    write an article of 600 words. about our game. metaverse. mentioning the artists and describing their collections. prerequisite. experience in crypto nft.

    $118 (Avg Bid)
    $118 Oferta promedio
    8 ofertas

    I will like an experience developer in blockchain and smart contract to develop me a smart contract for trading cryptocurrency

    $1304 (Avg Bid)
    $1304 Oferta promedio
    46 ofertas

    I will need the assistance of a blockchain developer , to help me understand and provide solution for a task. The task is confidential, I can't share more details about it in this description here. unless we chat. The task is more like classifying wallet addresses.

    $23 (Avg Bid)
    $23 Oferta promedio
    6 ofertas

    Flashloan arbitrage smart contract using equalizer finance bridges cross chain

    $746 (Avg Bid)
    $746 Oferta promedio
    30 ofertas
    NFT Smart Contract 12 horas left

    Shortly we need; ERC721A NFT Smart Contract YIELD contract Proxy Contract Openzeppelin libraries will be used in the contract; trouble-free and reliable one should be used. ---What we need is; Technical Specifications ♠ Chain: Ethereum Network ♠ Total Supply: 700 ♠ Standard: ERC-721A ♠ Category: Utility, Ticketing, Royalty ♠ Payment Method: ETH ♠ Storage: IPFS ♠ Mint Date: TBA ♠ Mint Price: 0,08 ETH ♠ Service Included: Buy, Sell, Mint, YIELD (Buy,sell 3rd party) ♠ Integration: OS ♠ WL: 350 WL SPOT / 350 FCFS ♠ WL Sale: 1 wallet max 20 qty can mint ♠ Public Sale: FCFS / no limit to mint ♠ Traits: No No team mint. Need a extra safe proxy contract for this smart contract to up...

    $20 / hr (Avg Bid)
    $20 / hr Oferta promedio
    36 ofertas

    I need pre-build ERC721A Merkleproof gas optimized smart contract with all other functions with dapp integrated code. in this way I can use code with multiple project

    $10 - $30
    $10 - $30
    10 ofertas

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