Solidity Jobs & Projects

59 jobs found

We found 59 Solidity jobs that paid in cryptocurrency. Search for work, find a remote job that suits your needs, and apply now!

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Escrow Smart Contract

Posted by sf433134

Required skills

Hello,
I need to develop an Escrow smart contract on the polygon network (or ETH) according to a specific logic (which has been mapped on a flow diagram).
The smart contract shall accept ERC20 stable coins (USDT, USDC, UST).
I NEED A VIDEOCALL WITH YOU BEFORE CONSIDERING YOUR APPLICATION (Skype or any other platform). If you cannot show yourself, do not apply.
Budget to be discussed upon qualifications and skills.
thanks 

Budget

$500
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Crypto Lottery

Posted by Crypto Lottery

Required skills

We need to make a lottery platform.
-Make an interactive rectangle of 5 columns with 8 rows giving a total of 40 numbers that can be bought whole or 1/2
-Create a connect wallet to pay, register the payment and block the purchased number and automatically deliver a ticket to the buyer
-Registration system for purchased tickets
-Counter of hours and minutes until the draw
-Create 3 layers, the first with daily draws, the second with 2 daily draws and the 3rd with a weekly draw. Each one with its interactive rectangle. In the first and second layer, automatic draw and in the third, which is weekly, add to perform streaming
-Cryptocurrency payments, networks: ETH, BSC, Polygon, Fantom, Rose, Solana and BTC
- Interactive online raffle
-For a number to win, the same number must come out 4 times
-All animated sequence online

Budget

$500
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BUSD REFLECTION TOKEN TO WITH STAKING REWARDS, DEX PLATFORM

Posted by ladeboy

Required skills

BEP20 BUSD REFLECTION TOKEN TO WITH STAKING REWARDS, DEX PLATFORM
Fixed Market Cap
Referral Scheme mechanism
Burnable
BNB/BUSD Reflections upon purchase and selling via trust wallet or Meta mask plugin like it done with EGC evergrow coin
Different slippage for selling (XY%) and buying (XX%) – this will be shared to BUSD reflections, marketing, burning account, LP, Referral scheme
Anti whale mechanism
Anti dump mechanism
Gifting of NFTs to holders after some time
Staking integration
DEX integration
Websitetrust wallet and metamaskwallet plugin for holders to earn referrals from purchases made by their referrals and reflections on their own holdings
 
BUDGET CAN BE DISCUSSED

Budget

$500
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BEP20 BUSD REFLECTION TOKEN TO COEXIST WITH STAKING REWARDS

Posted by info

Required skills

NOTE: You don't have to go into detail but please explain how you would do so when you message me, I won't reply unless you do so, this way I can filter out the real devs from the bad ones.I will not respond to hello, hi, hey, or anything. I'm looking for a serious dev not some wannabe, thank you.
Please do not reply if you don't know for sure that you can do it, this is not a test. tokens that have done a version of this:
affinitybsc aka safeaffinity: https://bscscan.com/address/0x0cae6c43fe2f43757a767df90cf5054280110f3e#code
earnhub: https://bscscan.com/address/0x80cba4031f7a75b650f4146e5ceba9d7562df939#code(term they named anyflect,state that they are the First Modular Enabled Token, allowing the contract to be upgraded on the blockchain, adding new features like new buy-back systems, auto-balancing staking pools, Play to Earn (P2E) mechanisms, and more.)
both are doing it through it's main contract, token in question is being created right now so if a separate staking contract can't be create in this manner then willing to add code to main contract to allow for these two functions to co-exist.
token: BEP20 BUSD REFLECTION TOKEN
Project requirement:
create a staking smart contract that rewards staking with reflection in tokens based of locked staking period with monthly multiplier,but continues to reward BUSD reflections whiledbeing staked. 
simply stated: as token is staked, continues reflecting BUSD as it was original created but now it will also receive staking rewards (reflected in the token itself), both function co-existing together.

Budget

$1,000
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Web 3 Developer

Required skills

Hi, we are an NFT project called Extinction Fighterz (https://extinctionfighterz.com) and we are looking for a Web 3 Developer to join our team. We already sold out our first collection and we are planning on launching others, as well as many other features like: 
LOTTERY IMPLEMENTATION: We will create a MATIC lottery which will allow the holders of our tigerz to join for a symbolic price the lottery and the more people join the lottery, the higher the cachet 
PRICE PREDICTION: We’ll implement on our website a prediction machine that will allow you guys to bet on the movements of cryptos and get rewards when you get the result right.
We are looking for a Web 3 developer to join our team, you could decide wether enter the team on equity, we are already profitable, or to get paid only for the works you carry on

Budget

$5,000
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Custom BEP20 TOKEN, ico page, website

Posted by info

Required skills

Of course not $1 but I'm not giving a value as everyone's opinion if price is different so I'll go w whoever I feel is most capable.
The goal(s) of this ASSIGNMENT has 3 LABELED SECTION. 
A) PRICING FOR EACH DONE SEPERATELY B)TOKEN DEV and LANDING PAGE FOR PRIVATE/SEED, ICO/CROWDSOURCE
C) ALL THREE 
TOKEN DEV
10,000,000,000 (10billion) 
15% private sale
12% Public sale
20% development - wallet - no vest
31% ecosystem rewards (staking/p2e,airdrop, p2e)
8% lock Liquidity 
6% founders wallet - vesting
5% treasury/marketing/advisors - no vest 
Buy tax
3% back to holders
2% auto Liquidity
2% buyback (swapping native token for busd to act as 2nd Liquidity by exchanging reserve Liquidity for ANTN in main LP)
1% marketing
8% buy tax total
8% back to holders
2% auto LP
2% buyback
3% marketing
15% sell tax total 
Option for manual burn.
Anti-bot
Anti-whale (0.12%) is it possible to limit up to 0.12% selling in a 24 hour period.
Ability to change tax?
PRIVATE AND ICO/CROWDSOURCE LANDING PAGES to purchase tokens 
WEBSITE 
Create website explaining
- token
- company
-team members 
- dashboard to show rewards and other statistics, chart from either poocoin. dexscreener, etc to show price movement
Ex. https://bodatoken.app/#/index
-downloadable whitepaper and one pager.
- seperate pages on website for seed sale (pre-ICO) and page for ICO/crowdsale 
Walkthrough on how to update/change info on website including deleting of seed sale page and ICO page after sale is completed. 
Ownership of all has to be transferred 100% to admin.
Define plan for executing all needed steps of the whole workflow
- Test the whole workflow on Testnets - has to be successfull at launch at the first try!
- Walk us through all relevant steps with screen sharing when executing it on mainnet. 
We will request once completed the job a PDF document that explains how to manage the token. 
1 to 2 month continued support to ensure smooth transitions. 
-timeline of completion 
Example of all three done together.
www.isalcoin.com
 

Budget

$1
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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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Audit your smart contract for security and performance

Posted by Modiu deve

Required skills

Thanks for visiting my profile!!!
I am a senior blockchain developer and solidity smart contract developer with 5 years of working experience in the criteria. Also i have some years of experience in software development and web programming.
I will fix and audit your solidity smart contract for security and performance solidity. Also i will provides you with the smart contract audit report.
Some of my skills as a blockchain developer;
Smart contract audit
Smart contract development
Token creation
Smart contract consultation
Fix bugs and verified your token
Nft marketplace development
Frontend and backend development
Exchange website creation
dAPP smart contract
Why working with me?
100% quality work
Effective communication
Extra fast delivery
Unlimited revision
Future support
 
Feel free to message me on any solidity smart contract project and i will be glad to help you with it.
Best Regard
Modiu_deve

Budget

$500
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Create Nft minting website, minting engine dex on solana

Posted by Modiu deve

Required skills

Are you interested in creating your ownNft minting website, minting engine dex on solana, matic bsc, blockchain? Great You just landed on the right gig.
I will Create Nft minting website, minting engine dex on solana, matic bsc, blockchain
With my web development design and blockchain expertise I can provide full stack web development with any kind of custom functionalities
WHAT I OFFER
NFT Marketplace
NFT Mint Engine
NFT Smart Contract
Wallet Connection
NFT Minting Web-site
Mint Function
Artwork and Metadata generation from layer images
Responsive NFT web-site design
Feel free to message me with your project details and lets discuss better.
Best Regard
Modiu_deve

Budget

$300
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Presale Page

Posted by Robert MS

Required skills

Hi, i need presale page that connected to bsc network (it would be better if its multichain , eth, avax and sol).
It has to meet this criteria: 
Features:
✔️ It has to be on php/laravel/codeigniter (not react)
✔️ Admin dashboard to set up presale contract address or bsc address for deposit, presale rate, pair, presale timer, refferal, softcap&hardcap contribution, etc
✔️ User connect Wallet Like Metamast or Trustwallet or other wallet
✔️ User can buy token / trade
✔️ Frontend selling not need signup
✔️ Responsive for all devices
✔️ Modern Design
DM me if you already has the demo and lemme check it.If you dont have any experience, please do not dm me.

Budget

$500
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Fork Wonderland DAO on Avalanche

Posted by Bruce Burton

Required skills

Looking for an experienced developer for this project. You will work with a single point of contact for this project, tech-savvy but not a developer. This contract's scope is to create a complete fork of Wonderland DAO including all token creation, staging site, and live site (to be activated by point of contact). Must be experienced with Typescript, Solidity, and general web development. Please note we are creating a Blockchain Application, not a website/blog/etc.
To be the best fit for this project you need:
Ability to communicate clearly
Dedication to meet project deadlines in a timely manner
Attention to details

Budget

$2,500
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Create and manage Olympus DAO fork

Posted by Boris Johnson

Required skills

We are looking for devs to become a part of our team to manage our Olympus DAO fork.
My team will take care of the marketing and bringing traffic to the fork.
All communication and co-ordination between team members will take place on Discord.
All team members will receive a percentage of the mint before the project starts. Once project takes off, team members will be able to cash out from the liquidity pool in order to receive remuneration.
We would prefer to work with real people. A video call is part of the interview process.
We are not in it for the money but for the experience. We love a good sense of humor.
If you are fine with all the above, please apply.

Budget

$10,000
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EOSIO Olympus DAO-like Project

Posted by J Kel

Required skills

Thank you for taking time to consider this application.
We are a team of EOSIO developers that require some additional staff to help with our project.
We are looking to build a system that has some similarities to Olympus DAO, and converting the Olympus DAO contracts, their functions, parameters and data structures to EOSIO (C++) is what we are first looking to do, as a functional working prototype.
So, this job is for:
Convertingthe Olympus DAO contracts (https://github.com/OlympusDAO/olympus-contracts) to a working EOSIO (C++) model that can be deployed on any EOSIO chain (eg. Telos, EOS, WAX, Proton, FIO, Ultra )
Helping test and fix any issues with these contracts.
An ideal candidate would understand:
Solidity
Non-deterministic principles of blockchain development
Ideally a developer who has forked Olympus DAO, or dived deep into the protocol and documentation: https://docs.olympusdao.finance/main
Experienced with C++
Worked with, or understands the principles of EOSIO, including RAM and CPU.
Since we're aware that EOSIO is not as popular as Solidity, we would like any prospective candidates to answer these two questions to assure some basic understanding and principles:
What general steps would you take to program a piece of smart contract code as a solution that can distribute 10 ABC tokens to 100,000 user accounts listed in an EOSIO table to ensure the transfers succeed with so many users, despite the type of CPU limitations that EOSIO blockchains have?
What is the name of the EOSIO function that can check whether the transaction succeeded or not—and if the transaction doesn’t succeed, it will safely return ("rollback") to the original previous state?
PLEASE ANSWER THE ABOVE QUESTIONS!We will ONLY proceed further with candidates who can provide authentic, sufficient answers.

Budget

$5,000
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