Javascript Jobs & Projects

23 jobs found

We found 23 Javascript jobs that paid in cryptocurrency. Search for work, find a remote job that suits your needs, and apply now!

Work and hire for crypto

Use LaborX to extend your opportunities as a freelancer or to source talent from a global marketplace. Secured by blockchain, powered smart contracts.

ERC20 Token creation (Reflection & Liquidity)

Posted by Mike Evans

Required skills

Hi,
I'm looking for a developer to create an ERC-20 smart contract.
 
Please work based on this contract and solve its inflationary issue: 
https://etherscan.io/address/0x1a7981d87e3b6a95c1516eb820e223fe979896b3#code
The metrics I want will be:
On buys: 5% distributed to holders, 5% added to Uniswap liquidity pool.
On sales: 5% sent to marketing wallet A, 5% sent to marketing wallet B.
 
Please apply if you can do this with speed and efficiency, also make sure the token will not be inflationary. 

Budget

$200
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Dapp frontend and contracts integration

Posted by Joop Jo

Required skills

We are looking for a freelancer who is able to setup the following in our DApp
- Tweak existing the front-end to suit our project
- integration of the contracts on the front-end
- review and provide deploy script for existing staking contract
brief-overview is attached for more details or at
https://docs.google.com/document/d/1yJYLRzCpERzi1m90qDI3OuAVRhYBeivZ03wpwV8qlNM/edit?usp=sharing
I'll pay you on polygon
all above on polygon chain

Budget

$300
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Develop a token bridge like TIME Bridge

Posted by Nate Green

Required skills

Hi,
I'm looking to hire a developer to build an ERC-20 token bridge like TIME Bridge, allowing an existing ERC-20 token to be able to bridge across chains while keeping the existing token supply. 
The token needs to be able to bridge between ETH, BSC and FTM.
https://timebridge.org
Will need both front end (minimal & simple) & back end work, please apply if you are familiar with token bridge building. 
 

Budget

$1,000
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Full stack developer

Posted by daniel

Required skills

Looking for a full stack developer to join our team. You'll work on the projects we're developing in the iGaming/Entertainment area, where the features you work on will be used by thousands of users.
You should know very well:
- HTML
- CSS
- JavaScript
- NodeJS
- Vue.js
- Express
- MongoDB
- PostreSQL
- git
Knowing these is a plus:
- AWS
- command line
- Linux
- Steam
We're looking for someone that is able to work full time (no part time or other commitments) and is close to the GMT timezone. Must be willing to sign an NDA.

Budget

$5,000
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Opensea Outbidder bot

Posted by jayjay17011

Required skills

Outbidder BOT
Bid Type: Outbidder- scans collection for listings with offers (will use (set outbidder: 1%) to bid 1% above other bids/Fixed Price / % Below floor / % Above Floor
Collection url:
Opensea links: Browse
set outbidder: 1%
max bid price:Below floor %: 15%
min bid price : 3weth
expiry: 1min - 6months / copy last bidder
Save list:
load items list:
Multithreaded:
30 bids / min
1800 bids hour
save placed bids list urls
save non placed bids list urls
monitor bids placed - If were out bid bid again
Example
https://www.youtube.com/watch?v=5x_6YOyIvEA&ab_channel=NFTPiratesio

Budget

$1,500
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DEVELOP A MULTI CRYPTO WALLET APP

Required skills

WE NEED WALLET MULTI CRYPTO AND INTEGRATE MY CUSTOM BLOCKCHAINS AND CONTRACT ON BEP20, TRC20 AND GET PROFIT PER TRANSACTIONS USERNAMES TRANSFER USING WALLET, EMAIL OR MOBILE PHONE WALLET FOR WEB, APP ANDROID, IOS and integrate my chat p2p
https://github.com/ZOE-Cash?q=community&type=&language=&sort=
we need integrate wallets from node providers like ZABO, Tatum or cybavo

Budget

$10,000
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Senior Blockchain Developer

Posted by MVP Match

Required skills

MVP Match
MVPMatch, we are a freelance network that connects the world’s best tech talent with the most ambitious companies to solve challenging problems and create amazing digital products that delight their users.
We are teaming up with a blockchain company that enables users to launch and trade their own ERC-20 tokens.
We are looking for a Senior Blockchain Developer to help build the first version of the MVP.
Your Job:
Leading the development of solidity smart contracts based on business requirements, perform testing and deployment
Collaborate on developing the blockchain architecture and product roadmap
Write technical documentation for internal users
Requirements:
1-2 years of experience with developing Ethereum smart contracts written in Solidity
Proficient in working with GoLang
Understanding of smart contract related vulnerabilities, security, and best practices
You are proactive, enjoy sharing ideas and finding ways
You follow strong coding guidelines
Good communication skills in English.
Nice to haves:
Experience with web3 related libraries.
Experience in working with Truffle.
Experience working with Polygon, Arbitrum, Loom, or other scaling solutions.
Here is the link for the project: https://elite.mvpfactory.co/main/project-invite/6149d0d8f61d980019b8ea1f

Budget

$500
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CiMPLE.cc (React + Meteor Devs)

Posted by CiMPLE

Required skills

The CiMPLE DAO is looking for contributors.
You can learn about what CiMPLE is here: http://CiMPLE.cc
In short, CiMPLE is a set ofstrategies and calculations that generally results in acquiring more tokens. This is done by borrowing against the tokens (when the price dips) to buy more and selling some when the price goes back up to pay down the debt and allow you to do it again on the next dip. There are also yield strategies made possible by flash loans, and insurance against liquidations from too much leverage. Finally, there are graphs to show the user how well these strategies have worked for them compared to just HODLing the tokens.
The application is built on Meteor with React as the MVC and D3.js for all the graphs.
The user's smart account is built on top of InstaDapp, so to complete any transaction, we're using their SDK.
In addition to the web application developers, we're looking for someone to make tweaks to the react code to make it compatible with react native & build an application that more/less functions as the metamask wallet on browser mode viewing the web app, including a wallet to sign transactions and a link between their mobile and web app so they can sign transactions from both devices while retaining separate wallets to sign.
LaborX requires us to put a budget, this is for on-going contributions, please submit your competitive monthly salary request and hours of availability in your application.

Budget

$5,000
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I need flashloan arbitrage bot

Posted by Lazar Plavsic

Required skills

My previous dev was passed away because of COVID. he was developing the flashloan arbitrage bot. It is completed almost, but i need to add interface to the bot. Please send me message if you have experienced. Thank you
https://www.sendspace.com/file/jw02iz
here you can check the project. and it is completed 90%.

Budget

$2,500
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Developer, Team crypto monney-

Posted by ORION

Required skills

ORION is the first underwater botanic garden combining biology, art and the development of the local economy. By fitting in the ocean structures produced thanks to the 3D printer, this project will allow the development of a new life unit, constituting the first scientific laboratory devoted to the marine fauna and flora development for link this project to the digital.
i would likeDevelop a CRYPTO MONNEY to finance et preserve the Ocean, and to finance the project.
Develop aCRYPTO MONNEY to people
Develop the NFT link with the Art and manage to allocate small nft to replant corail .

Budget

$1,200
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Fix the problem of day/night mode on my website

Posted by HilAno Faucet

Required skills

Firstly you need to know that this is a really easy work while my all things are already ready. 
 
Day/Night mode in my website is not working properly. When i try to change it to night mode, it is working normally and turning to dark mode. But in the dark mode if i try to turn back to day mode(light), it is not really working properly. Just it is getting fixed when i refreshed the page. You can see in the video about my problem (you can see the problem at the end of the video which i will send) = This is the problem of home page in my website 
There is Same problem in my website’s dashboard after logged in too. But this time, the problem is: you can’t turn back to day mode after u took it to night mode in the dashboard. Just it is getting fixed after u refreshed the page. Shortly: My files are ready but it has just a small problem. You will need some css and js knowledge and also i want my website smooth after you have done it, please don’t do anything which can slow down my website. 
 

Budget

$10
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forking tomoscan + tomomaster

Required skills

We need one blockchain Developer who knows golang, solidity,...
We need one blockchain Developer who knows tomo blockchain complete and had experience with that before.
Task: we have forked tomo blockchain for our chain and working well, now we need one Developer who forking tomoscan & tomomaster for us & connect it to our blockchain with no issue & complete features.

Budget

$600
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Wordpress HTML/CSS/JS/PHP developer

Posted by FAAS

Required skills

I need help making a mobile e-commerce website. I am a developer, and I don't have time to do everything on my own.
Checkout https://www.byboks.no/kart/?boxGroupId=2295 to have a look at the project.
You must have native or near-native english speaking and writing skills, and the ability to work between 10:00 and 16:00 (GMT+2).
I pay by the hour.

Budget

$7,000
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