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 a Ethereum Developers

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    25 trabajados encontrados, precios en USD

    Hi, Damian. I am Eugene for PokerTRON app. It seems we can work with this account.

    $3234 (Avg Bid)
    $3234 Oferta Promedio
    18 ofertas

    I need someone who will get me an ABI that will work for my smart contract verification on Etherscan and if possible other details. the smart contract code can be found here [iniciar sesión para ver URL]

    $47 (Avg Bid)
    $47 Oferta Promedio
    5 ofertas

    Since upgrading to ethOS 1.3.3 when I try to connect to our pool using stratum I get the error. "Could not subscribe: code:-3 message:Method not found" We need to be able to connect with new versions of ethOS 1.3.3. I don't know what changed. Did stratum finally standardize? Can the pool be modified to work with stratum now? I did not see anything about stratum in the release ...

    $202 (Avg Bid)
    $202 Oferta Promedio
    2 ofertas

    Please look at the attached document and contact us to discuss the work! The exchange needs to built in C++. You need to know security, block chain and how to work with it. Up to 10 market parings (BTC, ETH, LTC, XRP, BCHSV and, USDC or other ERCtokens / List an option for favorites pairings for customers.) May add more coins Connecting the 10 API from foreign Exchanges such as: Binance / [inic...

    $3457 (Avg Bid)
    $3457 Oferta Promedio
    38 ofertas
    Smart Contract Security Audit 5 días left
    VERIFICADO

    Perform a security audit for an ERC721 smart contract. Details about the project, including the white paper, can be found in the following website: [iniciar sesión para ver URL]

    $1538 (Avg Bid)
    $1538 Oferta Promedio
    20 ofertas

    I need ERC20 Token creation in ethereum mainnet and an ICO website for that token.

    $758 (Avg Bid)
    $758 Oferta Promedio
    13 ofertas
    Ethereum - Solidity help 5 días left
    VERIFICADO

    I need help with a lottery dapp -can I generate an array of 15 random numbers to create a ticket for the buyer -generate 40 random numbers for the game round. Can I return a dynamic array with all the numbers and does it cost a lot of gas to call the function to generate each of every time

    $17 (Avg Bid)
    $17 Oferta Promedio
    2 ofertas
    Customized Cryptocurrency Exchange 5 días left
    VERIFICADO

    Hello, We are interesting in launching a Cryptocurrency Exchange feature our own ERC-20 listings that would not be listed on our exchanges. As such we need our own Order Management System that could support our own network of market makers. We also need to support some of the major coin trading pairs and integrate with a major exchange for liquidity. However, this is our secondary requirement, n...

    $16319 (Avg Bid)
    $16319 Oferta Promedio
    40 ofertas

    A coin with its own block-chain (not a ico!) Ripple like: - Fast and fully anonymous - All coins are pre mined - You provide me with a panel that i can set coin symbol, Name, Amount of total coins and ect.. - you train me to any future maintenance if there is any. - You provide me with an explorer to the coin block chain. - Wallet (Desktop not Cloud) for pc windows that can store also other coins.

    $1253 (Avg Bid)
    $1253 Oferta Promedio
    24 ofertas

    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 - [iniciar sesión para ver URL] - [iniciar sesión para ver URL] - [iniciar sesión para ver URL] - [iniciar sesión para ver URL] - [iniciar sesión para ver URL] - [iniciar sesión para ver URL] I need support to do this, ...

    $3101 (Avg Bid)
    $3101 Oferta Promedio
    14 ofertas

    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.

    $161 (Avg Bid)
    $161 Oferta Promedio
    3 ofertas

    I am looking for someone who can come up with an idea to increase the trading volume on a cryptocurrency exchange.

    $137 (Avg Bid)
    $137 Oferta Promedio
    7 ofertas

    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.

    $912 (Avg Bid)
    $912 Oferta Promedio
    19 ofertas
    Master Node Complete Project! 3 días left
    VERIFICADO

    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!

    $1364 (Avg Bid)
    $1364 Oferta Promedio
    26 ofertas

    I need a develop to develop a cryptocurrency exchange website for me details will be sent to you via inbox

    $997 (Avg Bid)
    $997 Oferta Promedio
    33 ofertas

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

    $162 (Avg Bid)
    $162 Oferta Promedio
    6 ofertas

    I have some bitcoin miners .whatsminer m3x and antminer . I know the algorithm is different for ethereum mining . bitcoin is using SHA-256 but I was wondering if there is a way to customize the firmware or program or add hardware to these machines to make it compatible to work with etherum with the same or similar hash rates . please only reply to this post if you have knowledge about this project...

    $516 (Avg Bid)
    Destacado
    $516 Oferta Promedio
    11 ofertas

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

    $1727 (Avg Bid)
    $1727 Oferta Promedio
    15 ofertas

    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.

    $31 (Avg Bid)
    $31 Oferta Promedio
    1 ofertas
    Mining machine 1 día left

    from Antminer A3 to ObeliskSC1 firmware version update , or A3 to Lyra or quirk or Scrypt , as successful to do if you can than please do as soon as possible

    $9166 (Avg Bid)
    $9166 Oferta Promedio
    2 ofertas
    Mining machine 1 día left

    from Antminer A3 to ObeliskSC1 firmware version update , or A3 to Lyra or quirk or Scrypt , as successful to do if you can than please do as soon as possible

    $5472 (Avg Bid)
    $5472 Oferta Promedio
    4 ofertas

    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.

    $413 (Avg Bid)
    $413 Oferta Promedio
    14 ofertas

    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 ***

    $206 (Avg Bid)
    $206 Oferta Promedio
    8 ofertas

    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 ***

    $18 / hr (Avg Bid)
    $18 / hr Oferta Promedio
    7 ofertas
    Create a new Crypto Currency 39 días left
    VERIFICADO

    Create a new Crypto Currency by Improving open source existing codes and ensure its reliability to connect to external environments, and implement sepcific specs and deliverables and high level security.

    $3436 - $5727
    Destacado Sellado Acuerdo de Confidencialidad
    $3436 - $5727
    59 ofertas

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