Javascript Jobs & Projects

39 jobs found

We found 39 Javascript jobs that paid in cryptocurrency. Search for work, find a remote job that suits your needs, and apply now!

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MERN Stack Expert -Crypto App

Posted by K S

Required skills

The Budget is a placeholder. We can discuss the actual budget at the time of discussion.
Expert coder with a good knowledge of crypto, Trading bots, MERN stack is required for Frontend integration with the backend code.
The backend logic is ready and requires integration with frontend. We are using React, Nodejs, MongoDb.
Besides frontend integration, you'd also need to make a few frontend logic fixes as per the application requirements. Please revert only if u have very good working experience in the things mentioned above.

Budget

$10
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Full-stack Middle Developer

Posted by Nik McFly

Required skills

Ищем фулстек-разработчика на фултайм в команду. Laravel + golang + vue. 
Web3-финтех-стартап, делаем «программируемые деньги», систему процессинга и биллинга нового поколения
Минимальный стек ПО, уверенное знание и опыт работы, с которым необходим:
Laravel от 2 лет;
PostgreSQL (или Mysql), Redis;
Знание принципов REST, умение проектировать API;
phpunit;
Опыт работы с любыми платежными системами;
Базовые навыки Docker.
Будет плюсом:
Golang;
NSQ;
VueJS;
Опыт проектирования биллинговых систем.
Профессиональные качества:
Уверенное знание и умение применять принципы ООП и SOLID;
Опыт создания масштабируемых и отказоустойчивых решений;
Опыт работы в команде;
Умение разбираться с техническими задачами, легко читать чужой код;
Умение разбираться в технической документации сторонних API (в том числе на английском языке), проектировать и реализовывать решения в соответствии с документацией.

Budget

$2,500
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Senior Solidity developer - crypto game

Posted by Robert Carden

Required skills

I'm a senior blockchain expert & now looking for a collaborator eager to join our team as a solidity developer
We're now working on a crypto game project - need an expert solidity developer for auditing
You'll be working with several experienced developers
Feel free to contact me if interested!!!
Thanks
Robert

Budget

$10,000
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Website build with some web3 functionality

Posted by GMI

Required skills

This job has 2 parts.
I want a 1 or 2 page website building: modern and techy but still quite a simple/elegant design. Text content will not be massive, just some paragraphs describing the company and business. I have logo's, colour schemes and other image files to help with design.
Additionally I want to showcase some very simple web3 technology so I'm thinking an additional page or two that is only accessible when a web3 compatible wallet has been connected.Nothing crazy, just some content that's accessible when a wallet is connected. Maybe a message board or links to other different pages, I'm open to options on this part.
Let me know what you can do and I'd like to hear your ideas.

Budget

$1,000
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Hiring Front End Developer

Posted by Kami DevTeam

Required skills

Need Front End Developer to Fork Titano's website + DAPP
looking to hire a front end developer:
- Fork Titano's website (https://titano.finance/,https://safuu.com/,https://sphere.finance
- must be able to make a DAPP, and link front end to back end code
- must be able to use REBASE BOT (we have a python code, will provide it for you!)
- input links that lead to our twitter, discord, dapp, traderjoe link to buy, whitepaper
We already have the smart contract, please do not contact me if you do not understand my instructions. The payment is negotiable as well! 

Budget

$2,000
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PreSale dApp on BSC with Referral system

Required skills

We are looking for a developer for a PreSale dApp. The app should include the following features:
- Display how long the PreSale runs
- ProgressBar (possibly status changeable)
- Payment with BNB, USDT, USDC, BUSD, DAI, ETH?
- Connection with Metamask, TrustWallet and co.
- Platform: BSC
- Referral System
References are needed. Please send links to sample applications or demo applications.
Development should be implemented in a timely manner.
No response without references.

Budget

$1,500
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Flashloan Bot running on polygon network

Posted by Serenity Source

Required skills

Polygon Flashloan Bot
The flashloan bot on polygon network
Prerequisites
This flashloan bot needs to work with the smart contract https://github.com/serenitysource/poly-flash
https://polygonscan.com/address/0x8311bcA90818330AA228DA17aA8fB7a0bBBaF97C
You need to deploy your own version of this smart contract on polygon mainnet in order to run this bot and show successful flashloan transaction.
Payment
Payment to consultant WILL BE RELEASED ONLY UPON providing flashloan successful transaction hash
Source code handover

Budget

$500
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Senior Data Engineer - Crypto Trading / DeFi

Posted by Mason Cooper

Required skills

We're looking for someone to expand our data engineering capabilities within our Engineering team. The role will be to support and work closely with the business and engineering teams to develop the firm’s service offering. Please review the attached documents for a more detailed description about the project and our requirements. If you have any questions please do not hesitate to reach out.
Company Background:
We are a leading market-making and programmatic trading company in the exciting and fast-evolving world of cryptocurrency trading. We provide sophisticated execution and liquidity services to token projects, institutional and HNW investors, and crypto exchanges. We specialize in providing liquidity, risk management and structured products to institutional participants in the digital asset ecosystem. Our team of veteran finance and technology executives from Goldman Sachs, Two Sigma, Citadel, Blackstone and Tower Research among others, has developed one of the world’s fastest and most robust trading platforms. 

Budget

$10,000
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I will create solidity smart contract on Ethereum blockchain

Posted by Modiu deve

Required skills

I am a senior blockchain developer with background experience in solidity smart contract development carry 5 years of working experience in the field.
I will create standard token and solidity smart contract on Ethereum, Cardano and Solana Blockchain and also i can connect web3js frontend.
SKILLS;
Token creation
Smart contract development
Web3js integration
NFT marketplace development
General consultation
Smart contract audit
NFT art work design
Solidity smart contract
Mint engine website development
Quality work is all what you are expected and it will be deliver to you here. So kindly message me now and lets discuss your task.
Best Regard
Modiu_deve

Budget

$300
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Simple React Firebase Component

Posted by Anonymous

Required skills

Create a React component that takes 1 prop as argument. Prop is a string id. On render, component fetches document based on id from firestore. Once received, displays some information from record.
When finished, create some script so I can replicate the firestore state to my local firestore. Use unique collection names to avoid collision.
Must speak english fluent.
Must have professional experience using React and Firebase.
Must deliver within 3 hours of proposal acceptance.
Must use project template and submit pull request to said project when finished.
Must include following statement in proposal submission - "I have read and agree to conditions stated."
By proposing you agree to all these conditions. If conditions are not met your proposal will be ignored/disputed. If you do not complete task in time you agreed, you agree that you will not be paid.
Project template you will use https://github.com/evergreen-trading-systems/lookup-page
Focus on completing task not styling.

Budget

$50
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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
- integration of the contracts on the front-end
- Tweak existing the front-end to suit our project 
- 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

$100
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