Blockchain Jobs & Projects

163 jobs found

We found 163 Blockchain jobs that paid in cryptocurrency. Search for work, find a remote job that suits your needs, and apply now!

Work and hire for crypto

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DeFi yield aggregator website

Posted by Exto, Inc.

Required skills

We need to create a one-page website that would collect all staking/pools propositions from Beefy, Autofarm and Pancake. This one is close to what we want to achieve: https://yield.rodeo
The data must be fetched by API and be updated on an hourly basis.
Filters:
Vaults (Autofarm/Beefy/Pancake) /multichoice, all on by default
Platform (auto populated) /multichoice, all on by default
Network (Ethereum/BSC/Avalanche/HECO/Polygon/Fantom/Harmony/Arbitrum) /multichoice, all on by default
Type (Staking/LP), /multichoice, all on by default
Table:
Network
Platform
Pool
APR/APY
Auto compound
Daily
Withdrawal fee
Trading
Reward structure
TVL
Load time
The site must load in less than 2 seconds with any filters. We can use pagination by 200 rows.
Design
The site must have an attractive and sleek design. To cut costs, we can use a template from the framework you will use. Design must be pre-approved.
Framework
The contractor is to suggest a framework. It must be something very common in PHP or Python.
Deliverable
The contractor is to deliver a turnkey fully functioning website hosted under the provided domain.
A successful applicant must have experience in DeFi / crypto space. References are required.
Thank you

Budget

$300
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Blockchain Developer

Required skills

Blockchain Developers create system for recording and storing secure digital transactions for cryptocurrency and other types of data transactions. I Develop and optimize blockchain applications I'm using cryptology techniques to prevent cyber attacks and I document blockchain development processes, I used to work at Blockchain Headhunter It contains Blockchain gigs in the fields of finance, health care, government, travel, logistics, etc. Mainly aimed at Blockchain experts.
Reasons why you need me:
as you can see Blockchain Developer is the most Job search volume per month and they already got the job. and here i am waiting for u to hire me. Hiring me is the most Unregretful and Best Decision You'll Ever made. I Swear

Budget

$100
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build nft mint engine and dex on solana, fantom, algorand

Posted by paul james

Required skills

is a team of blockchain developers offering our services on fiver with passion to offer best blockchain development services available in the market.
What we offer with this gig:
Frontend development with metamask integration in react js.
Backend development in node js
Smart contract erc721
Minting
Pausing / Unpausing
Supply Management
Pricing Management
Receive payments from customer in ETH/BNB or ERC20 tokens.
On chain / Off Chain Metadata management
Withdraw
Support Blockchains:
Ethereum
Binance Smart Chain
Cardano
Tron
etc.
We will deploy your contract on testnet, If you need help in deploying on mainnet let us know.

Budget

$2,000
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Forkpcaneswap Farm pool Amm

Posted by Game Changer

Required skills

I need Farm / pool / AMM / and Some emphty pages with my design color logo etc , Socal media links. Home design little customized.
Payment after project delivered and complete source code of project not only complied. 
Don't ask bnb fee.
Token is deployed.

Budget

$600
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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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Opensea NFT Project (10.000 Random NFT'S Project)

Posted by QR Genesis

Required skills

I want to launch a simple (awsome) NFT project next year, designer is probably (https://instagram.com/necrofearfx?utm_medium=copy_link) i just need a blockchain developer, anyone in here who wants to help/be part the upcoming Team? 
We will discuss how we share crypto generated from the sales, 
so the Job will pay later with our effort.
Basically for website integration to launch a sale with Metamask, generating random characters (colours) for the NFTs in the backround. 
Goal is to sell around 10.000 NFT's (200-250usdt each NFT), maybe 999 presale for marketing budget and rest later, official launch in 2022.

Budget

$10,000
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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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develop like this

Posted by Anonymous

Required skills

Hi
I want a dapp, which, user(website visitor) be able to pay the fee(our token generating system which will goes to our wallet + transaction fee which obviously have to be paid to miners) and receive the desired token(token name,symbol,total supply and etc...)
Also me(as the admin of system) be able to set fee of creating that token(even maybe in some times give some discounts for users)
In addition, if you can prepare some contracts which the user be able to select from them and varying fees, it would be better.
some samples are on github, but not exactly what i want.
Also here is a working sample: https://dappbuilder.org/bsc/cappedmintabletoken
Thanks

Budget

$200
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Junior Solidity Developer

Posted by Anonymous

Required skills

The Web3 space continues to expand at unprecedented rates. Like the universe, pushing out in all directions. 
And somebody/something needs to fill this vacuous void. 
Step in the fastest growing Blockchain start-up in the past 4 years. That's right - faster than Coinbase, faster than any DeFi protocol. And they are looking to scale aggressively to service their clients.
We are looking for a number of Blockchain Engineers ranging from Lead/Senior to Entry level, with the aim of building out several dedicated teams. The below relates to an Junior/Entry level position. 
What will I be doing? Good question: 
Greenfield Smart Contract development working on digital primitives from the ground up with a Lead Engineer.
Hands-on development rather than theoretical learning.
Develop high-quality code that is maintainable, performance and accessible
Working with internal and external security teams for audits of new contracts and changes
What I need to smash this role out the park...
2+ years as a software engineer
Personal experience developing smart contracts
Degree in Comp Sci, Engineering or Mathematics
Strong desire to learn OOP languages
You and the EVM are have had a couple of dates and are getting familiar
But Thomas? I have these.. how can I stand out?
Always up to date with latest EIPS, practices and standards
Willingness to learn new languages, frameworks, and technologies
Tenacity to debug the challenging issues for long periods of time
If you are looking for a challenging but hugely rewarding role with a company that, in the past month, has increased valuation by 400% then look now further.
Drop me a message:
Telegram - @thomasbailey
Twitter - @thefinestbailey
Email - thomas.bailey@plexusrs.com

Budget

$10,000
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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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Fix error integrating Binance wallet using web3-react

Posted by Boyd Olson

Required skills

I'm the developer of a payment service that works with metamask there are two errors I'm stuck with.
First is making the app work with binance wallet and walletconnect using web3-react. I integrated web3-react and it works well with metamask. Integrated binance and wallet connect as well but when I try deposit function of the contract with binance connector (or waletconnect connector) I get the this error I cannot figure out a way to solve "Invalid parameters: must provide an Ethereum address.". Tried a lot according to stackexchange articles without success.It is the same error for both binance and walletconnect so figuring this out will solve both.
I have to integrate these wallets so I can only pay if you can solve this error.
Other one is the withdraw function gets stuck in metamask mobile app browser. Everything works fine on desktop metamask extension. I tried to find out with mobile console addon I found, looks like something exceeds metamask browser's memory size or something. I needto know if there is something to be to make the app work on mobile. Looks like this is an issue with metamask so if it is, I don't expect you to necessarily to solve this.

Budget

$100
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Write an article of 2000-2500 words

Posted by Request Network

Required skills

CONTENT BRIEF
Suggested Title / Topic: 
How to do business in crypto as a freelancer? Here are the steps, tools, benefits, and precautionary measures to consider when getting started. 
Purpose of the Content:
Inform and educate an audience, mainly freelancers and contractors, on how to get started with accepting and making payment in crypto, what tools to consider when dealing with crypto assets, and what are the pros as well as the cons for managing crypto as a freelancer. See Target Audience below. There should be a section in the article, perhaps under tools, that explains about our product: http://request.network/invoicing
Target word count: 
2000-2500
Keywords to consider for SEO:
Crypto assets, crypto invoicing, digital currencies, digital payments, remote work
Required links, stats and references we like to use, if any: 
N/A
Content we like to follow as examples, if any:
https://www2.deloitte.com/us/en/pages/audit/articles/corporates-using-crypto.html (**but for freelancers!**)
Company Overview:
Request is about simplifying finance and being the voice for organizations managing crypto assets. A strong brand which stands for humbleness and powerfulness, our mission is to re-invent how we experience payments and rebuild trust in the financial industry.
We inspire developers and authorities to use the Request Network protocol and build an ecosystem of financial applications together. Through our suite of financial apps dedicated to crypto-first companies, we’re building a network that connects businesses around the world and accelerating the adoption of blockchain technology for transaction requests.
Website: https://request.network/en
Request Invoicing (our first app): https://request.network/en/invoicing
Blog: https://request.network/blog
Learning Center: https://request.network/en/academy
Content Strategy Goals:
The goal of our Content Strategy comes in twofold: 
To be perceived as a thought leader in the industry of Decentralized Finance (DeFi). More than just delivering amazing products, we embody the principles of DeFi that builds trust and creates value for our community. 
 
Focus on generating leads and user engagement by catering to the needs of existing and new users throughout their user journey, with content. 
Target Audience:
Our target audience comprises 3 core groups. But for this article, it should be written for group 1. Freelancers/contractors
Freelancers/contractors who want to get paid in crypto i.e. business consultant, social media/marketing manager, developer/builder, etc.
 
Crypto-first organizations (HR manager, CFO, Accountant, Head of Community, Founder, etc.)
 
DeFi lover and crypto-curious who has never paid or been paid in crypto but interested in learning more about the benefits that blockchain technology brings to their work life.
Voice, Style and Tone:
Content is to be written mainly in 1st person plural (we), but can also be in 2nd person singular (you) if more suitable (i.e. for tutorials and guides).
Style: Educational, inspiring, friendly but not too much, focus on community 
Tone: Clear, confident, respectful, inclusive
Please refer to our “Tone of Voice” PDF guideline for more details and examples.
Formatting Requirements:
Blog post following a guide type format
The article should be broken down into subheadings i.e. Benefits, Steps, Tools, etc.
Please refer to our “Tone of Voice” PDF guideline for more details and examples.
Additional Guidelines or Resources:
“Tone of Voice” PDF guideline: https://drive.google.com/file/d/1OZszGXbM405LnPBHB-xaKlnQVz6RXdoa/view?usp=sharing

Budget

$250
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Trading Bot Development

Required skills

Hello.
I need the trading bot app. 
I have a demo app developed by other developer. Then he disappeared without sharing sourcecode.
I need a great trading bot developer who can develop bot with same functions.
I can send demo app and explain in details.
This will be version 1, looking for someone reliable that can also be available for version 2.

Budget

$5,000
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Polkadot node setup + RPC integration into PHP script

Required skills

We are looking for a freelancer who is able to setup the following in our PHP web application
Setup a Polkadot node with RPC communication between linux ubuntu server (polkadot node) & web host (php)
Integrate the ability to generate a deposit address, detect transaction, detect confirmed transaction and send transactions to clients for Polkadot and all tokens on the Polkadot blockchain
Integration must be made into our existing PHP script which does the above already for Bitcoin and Ethereum + ERC-20 Tokens.
Applicants must be able to prove that they are able to do the above if they would like to be accepted for the job. It can be proven with a portfolio or existing application they have worked on which includes the above functionality. If you are able to do other popular coins, please see our other jobs.
Thank you.

Budget

$45
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Binance Smart-Chain Node Setup + RPC Integration

Required skills

We are looking for a freelancer who is able to setup the following in our PHP web application
Setup a Binance Smart-Chain Node with RPC communication between linux ubuntu server (binance node) & web host (php) 
Integrate the ability to generate a deposit address, detect transaction, detect confirmed transaction and send transactions to clients into our existing PHP script which does this already for Bitcoin and Ethereum + ERC-20 Tokens.
Applicants must be able to prove that they are able to do the above if they would like to be accepted for the job. It can be proven with a portfolio or existing application they have worked on which includes the above functionality. If you are able to do other popular coins, please see our other jobs.
Thank you.

Budget

$40
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