En curso

Ethereum smart contract ERC20 for Pre-ICO & ICO Phase


Experience in creating complex smart contracts on Ethereum platform is needed.

Should have prior experience in initial coin offering projects and blockchain based products.


Solidity, Ethereum Virtual Machine (EVM), NodeJS, Geth, TestRPC, Truffle v4, Atom, web3 JS API, MetaMask/MIST, Html, Css, Javascript frameworks, SQL Server 2012


- Design, develop & test the Dapps built using Webpack Truffle boxes & front-end technologies.

- Use Ethereum contract design patterns (such as Self-destruct, race condition, safe math Factory, Name registry, Mapping Iterator, etc.).

- Built, deploy and thoroughly test the smart contracts in various test environments – TestRPC, Geth private network and Ropsten test network/acceptance environment.

- Use Atom & Truffle’s Mocha Javascript testing framework & Chai behavior driven development assertions in TestRPC to test various test cases of test suite.

- Develop & test the token creation & token distribution smart contracts. For crowd-sale contract, develop & test the contribute, refund, funding status and payout functions.


1. Smart contracts -Pre ICO & ICO Phase

-Token creation

-Token distribution against incoming Ether address

- Ether current price based calculation to find how much token to be send to an incoming ETH payment

- In Pre-ICO stage there will be sale with 20-30% free token on each purchase.

2. Token Distribution for Bounty/AirDrop/PR campaigns, Somthing like - there will be a list of wallet addresses in database, we might be sending tokens to that list of addresses.

3. Integration with ICO website through web3 JS API


[login to view URL] should be listable in any exchange

Please share your experience on these skills and present reference implementations in your proposal.

It will be a long term work, if worked then you can work with us on our product dapp.

Habilidades: Cadena de bloques, Ethereum, Git, HTML, jQuery / Prototype

Ver más: ico smart contract example, ico contracts, ico smart contract template, ico smart contracts, ethereum crowdsale contract, ethereum ico github, ethereum ico contract example, ico smart contract github, smart contract freelance, general services contract template, general services contract sample, general service agreement contract, general freelance contract, general contract for services sample, general contract for services example, general contract for services agreement, general contract for services, buyer based model in pre preparation production phase in online marketing, hawari general hospital years contract nurses, hawari general hospital contract nurses

Información del empleador:
( 7 comentarios ) Chandigarh, India

Nº del proyecto: #16590462

Adjudicado a:


Hello, i'm a solidity developer and also create dapps. I can write your pre-ICO and ICO contracts with all your requirements, no matters the complexity. Please tell me why you require the freelancer to use atom? is Más

$200 USD en 10 días
(16 comentarios)

20 freelancers están ofertando el promedio de $1132 para este trabajo


Please check the ICO platform we have built [login to view URL] Also We have built several Crypto Currency platforms like [login to view URL] [login to view URL] https://cmmexc Más

$3000 USD en 7 días
(279 comentarios)

Hello, I was going through your project description and have some question to ask you. >>What is your main concept behind the ICO? Do you have any document or whitepaper? >>Need to know the parameters required Más

$5900 USD en 42 días
(40 comentarios)

This is Anshuman from Atventus India Private Limited. We expertise in Blockchain and BitCoin development. We have lots of experience in setting up direct BitCoin blockchain transactions with all the wallet. features. Más

$2000 USD en 3 días
(34 comentarios)

We read your requirement about Ethereum smart contract ERC20 for Pre-ICO & ICO Phase here is the our previous Cryptocoin project please visit [login to view URL] also check wallet [login to view URL] Más

$133 USD en 1 día
(9 comentarios)

Greetings, We are colonist services providers from India for Cryptocurrency development, Crypto exchanges,Crypto wallets, Mining platform apps, Exchange platforms and other types of Blockchain based development.  Más

$1555 USD en 20 días
(4 comentarios)

Hi, I am a Blockchain Developer having more than 1 year of experience in Ethereum Blockchain Development. I have developed various smart contracts including ERC20 tokens and ICOs for my multiple clients across the glob Más

$1222 USD en 10 días
(7 comentarios)

Hello, We are an experience team in working at Blockchain technology , ICO creation and Smart contract development or token creation . Completed ICO works and smart contract :- .................................... Más

$2444 USD en 45 días
(17 comentarios)

We have large experince in cryptocrrency development. Please have look [login to view URL] and this for demo admin [login to view URL] username : admin password : info@123$% We are having a Más

$155 USD en 3 días
(10 comentarios)

Hello, Glad to tell you that we are currently working on Cryptocurrencies kind projects which are in the developments phases. Just gone through your project scenario and it looks like you are looking for website Más

$1666 USD en 21 días
(4 comentarios)

Hi, We are highly experienced team of Solidity programmers with huge experience in developing and launching tokens on Ethereum Platform. We have developed new crypto token for clients and have taken them upto an IC Más

$200 USD en 3 días
(3 comentarios)

Hello, I am very interested in your respective job post. Knowledge of ICO Token Ethereum based: - ERC-20, ERC-223, ERC-721 Standards - ICO Token Launching - Smart Contract - Token Supplies coding - Decentral Más

$2500 USD en 40 días
(8 comentarios)

Greetings of the day!! Hope you are well. I have more than 2 years of experience in Blockchain and Crypto Development. I have already developed Trading Portal, Exchange, BTC Wallet, ETH Wallet, LTC Wallet, XRP Walle Más

$155 USD en 3 días
(4 comentarios)
$666 USD en 3 días
(0 comentarios)

Experienced freelancer here, developing smart contracts for a year now. Due to lack of online presence, I am happy to do your work for the least amount of money. If you are suspicious, at least give me chance to prove Más

$35 USD en 5 días
(0 comentarios)

I am an blockchain+crypto+ethereum developer and I can develop your project. I have worked with ERC20 tokens, wallets, Raiden, etc and can handle your project with ease. Worked with ERC20 tokens, wallets, Raiden, M Más

$155 USD en 3 días
(0 comentarios)

A proposal has not yet been provided

$111 USD en 3 días
(0 comentarios)

Hi there.! We are very much interested in your current [login to view URL] believe we are a perfect match for your project because here at Caliente iTech we all believe in customer satisfaction [login to view URL], we have prior experi Más

$160 USD en 3 días
(0 comentarios)

I already have experience deploying pre ICO and ICO using solidity contract for a japanese company. I used remix IDE for debugging and testing it on ropsten test network of ethereum. Feel free to contact me if you eant Más

$222 USD en 2 días
(0 comentarios)

Greetings. I have reviewed the technical specs of your project and am willing to work with you. I have strong experiences in web development using ethereum. I assure you that we can meet your expectations and delive Más

$155 USD en 3 días
(0 comentarios)