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. Contratar Ethereum Developers

Filtro

Minhas pesquisas recentes
Filtrar por:
Orçamento
para
para
para
Tipo
Habilidades
Idiomas
    Estado do Trabalho
    18 trabalhos encontrados, preços em USD

    I post a .pdf file with all requeriments we need receive the source code for test in ropsten we need create a QR generator or a backend to get a referral link

    $450 (Avg Bid)
    $450 Média
    4 ofertas

    We need create a Smart contract & Backend based in a simple smart contract ill upload pdf file for smart contract requeriments we need make this so fast, will need the source code to test in ganache or ropsten network

    $300 - $500
    $300 - $500
    0 ofertas

    I need someone to integrate trustwallet on my site.

    $172 (Avg Bid)
    $172 Média
    6 ofertas

    Since it's a very innovative project I prefer do not give details. We require ethereum and smart contracts knowledge. Italian language is a plus, even if not mandatory

    $15 / hr (Avg Bid)
    $15 / hr Média
    3 ofertas
    Token ERC-20 4 dias left

    I am looking for a programmer, I want to develop a token from the ethereum network

    $188 (Avg Bid)
    $188 Média
    12 ofertas

    I have a token called H3D (solidity smart contract). Whenever someone buys or sells H3D through our site ([fazer login para ver a URL]), 10% of the purchase (in HEX, what people use to buy H3D) is distributed amongst the token holders. The value of H3D goes up as more people buy, and down when people sell. We launched and all was well, but someone discovered a bug that allowed one of the developer...

    $566 (Avg Bid)
    $566 Média
    14 ofertas

    I need ethereum web3j app in android or a java class that can do the function: 1. Create Account (Public address and Private Key) 2. Erc20 Send transaction 3. Ethereum send transaction 4. Get balance 5. Should be in mainet connection in infura Refrence link : [fazer login para ver a URL] and [fazer login para ver a URL] Only freelancer that has experience on it are allowed to bid as I need...

    $281 (Avg Bid)
    $281 Média
    4 ofertas

    I would like to build a faucet site that pays HEX every week. I'm after a clean interface, the site style will be built in a similar way to http://hex.toys. total deadline: $500

    $118 / hr (Avg Bid)
    $118 / hr Média
    14 ofertas

    I would like to work with a developer to build an Ethereum ER-20 token faucet site that pays HEX every week. I'm after a clean interface, the site style will be built in a similar way to http://hex.toys.

    $1779 (Avg Bid)
    Destacado
    $1779 Média
    24 ofertas

    Hello. I know bitcoin full node can working on own server. But Ethereum also can do that? I want to wallet service and provide API to other website. So i need to operate to BTC and ETH. Looking for developer with knowledge of this.

    $220 (Avg Bid)
    $220 Média
    12 ofertas
    Ethereum Web3j java android app 2 dias left
    VERIFICADO

    I need ethereum web3j app in android or a java class that can do the function: 1. Create Account (Public address and Private Key) 2. Erc20 Send transaction 3. Ethereum send transaction 4. Get balance 5. Should be in mainet connection in infura Refrence link : [fazer login para ver a URL] and [fazer login para ver a URL] Only freelancer that has experience on it are allowed to bid as I need...

    $158 (Avg Bid)
    $158 Média
    3 ofertas

    We have a protocol developed in Solidity. This protocol has a relayer module which processes the transaction without taking gas fee in ETH from the users. Fee for the transaction is paid by relayer and once the transaction is processed, ETH is refunded to the relayer. We would like to add a method that will refund the fee in ERC20 token as well. Implementation is based on [fazer login para ver a...

    $478 (Avg Bid)
    $478 Média
    4 ofertas

    I want a programme I can run on a DigitalOcean server that uses Twitter's API to monitor accounts I specify by username. When the user I specify tweets or re-tweets, the programme should send a transaction on the Ethereum blockchain from one address to another, with the text of the tweet (as hexadecimal) as the 'Input Data'.

    $280 (Avg Bid)
    $280 Média
    5 ofertas
    Blockchain hardfork 21 horas left

    looking for a new crypto coin for myself by hard forking any good existing blockchain. Only experienced developer contact me. Fixed budget : 500$

    $511 (Avg Bid)
    $511 Média
    9 ofertas
    Ethereum Token Swap and Mapping 20 horas left
    VERIFICADO

    We are looking for a Ethereum Blockchain specialist / developer with the right experience in designing and developing swap process for ERC20 tokens (mapping). We want to swap our old ERC20 with a newly created ERC20 at the ratio of 10:1, meaning the current token holders will receive 10% of the newly created token whereas the remaining 90% will be locked for 10 years. Preferrably the swap event...

    $246 (Avg Bid)
    $246 Média
    8 ofertas

    We want to develop a token on Ethereum Blockchain and Smart Contracts starting from a whitepaper in our possession.

    $546 (Avg Bid)
    $546 Média
    18 ofertas

    I need some help with internet marketing.

    $7363 (Avg Bid)
    $7363 Média
    7 ofertas

    I need a coin made on etherum block chain.

    $159 (Avg Bid)
    $159 Média
    7 ofertas

    Artigos da Comunidade dos Principais Ethereum