Ethereum Jobs

Hi, I need a website where user can purchase my erc20 token fiat currency. You can use and adapt the mesg project. User choose the amount of token they want to buy, they send money, once transaction is confirmed, they get the purchased amount of token.

Hello, I want to understand how can i developp on the Copay app(bitpay) and their Bitcoin Wallet Service! I need a real blockchain expert..

I want to build a block chain based web application using react js UI, Which interim implements the smart contracts.

Hi- I want to test my network for hyperledger sawtooth and need a script that can be manually configured to run stress testing for hyperledger sawtooth using hyperledger caliper. I want a script like [iniciar sesión para ver URL] (and parameters in front the command) and I give different scenarios to test the sawtooth. please let me know if you can create a documentation and script for usi...

I need help putting my custom logo that I have on trustwallet.

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

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

I need someone to integrate trustwallet on my site.

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

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

I have a token called H3D (solidity smart contract). Whenever someone buys or sells H3D through our site ([iniciar sesión para ver 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 d...

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 : [iniciar sesión para ver URL] and [iniciar sesión para ver URL] Only freelancer that has experience on it are allowed ...

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

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.

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.

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 : [iniciar sesión para ver URL] and [iniciar sesión para ver URL] Only freelancer that has experience on it are allowed ...

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 [iniciar sesión ...