Ethereum Jobs

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 ([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...

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...

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 : [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...

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...

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'.

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

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...

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

I need some help with internet marketing.

I need a coin made on etherum block chain.