Smart Contracts Jobs

Looking to bring someone to do quick smart contract reviews and fill out a form with the results. Reviews will take 30 minutes to an hour and we're looking at about 20 reviews a month.

Looking for NFT developer for my website

Context: 1)I have 10,000 NFT Images already created 2)I have 10,000 Metadata files already created What i need: 1)I need someone to create a minting DApp for a website which is compatiable with opensea 2)The smart ethereum contract will need to split 25% and 75% of the intial sale price between two wallets and also split any future royalties between two wallets 50/50. You will need to help guide me through the launch process that you think will be good and must have worked on this type of project before and also happy to help with future development requirements. At the moment all i am after is bids so i can see how much it will cost, please confirm by saying "i understand".

Need solidity smart contracts written. Need a web3.0 connection to wallet connect, metamask and other wallets. Need website to allow escrow. Will say more after non-disclosure

Looking for Blockchain developer for NFT website. More details in chat

I am going to make a fantastic NFT Game Website on my own. Actually looking for a developer who has experience in building NFT Games before. Here is a NFT game "Dragonary". My brother likes this game very much, but it is desktop app and it has got a problem in its logic. I'd like to have a wonderful game. Please send me your proposals if you are interested in my project. Do not waste my time. I hope to talk with only who has understood my project and got my game's general logic. Please write down your opinion about this game on your proposal or simply append the url or video of your similar project. Will share more details via chat and will start working immediately.

I have approx 5000 NFT which has 8 original images and 4672 Other Images. also, I already created metadata and uploaded it on Pinata Cloud. so just want an experienced blockchain developer who can create a smart contract and upload it ETH blockchain. where 8 original images will be always on top

Hi. Looking for someone with experience in creating smart contracts and deploying. Pls only apply if you have experience and have done in past.

We want to copy existing project from github. Need to change few things from that contract.

We need to build a dApp that will let us (or an authorized user) select items to lock up for another person to be able to come claim. Should be able to select an available ASA token or ASA NFT and lock it for another user by either wallet address OR if a wallet holds a certain ASA (NFT) (assign X asa to X wallet address, OR assign X ASA to holder of X ASA) User that locks the items should be able to see when claimed and by what wallet, or be able to cancel at anytime (in case of error or limited time offer) it's should stay locked to claim until claimed or canceled by the person that locked it User would come to app, connect wallet and see if they are holding anything they would get a reward for, and if so, then they could claim it by signing contracts and having item opted in an...

Hello, We need a roulette game with excellent graphics, in solidity, with smart contract. Mobile based or responsive. Best Regard's VG

Busco experto en blockchain que me ayude a crear smart contract y token ERC-20 en Etherum.

We require a smart contract developer for a BEP-20 with integrations to service modules from ChainLink. The project is expected to last for 3-4 weeks. Flat-rate payment, future employment opportunities available.

There is a requirement for the rfollowing: #1 Create NFT + Gift Cards with Utility #2 Launch limited edition NFTs to drive Referrals through the provision of incentives Please provide the following info with your bid. - How you would implement the above - Timelines/milestones Further information can be provided as required

I would like to migrate an existing project from Terra to Solana to take advantage of the Solana's speed and low transaction fees. The current project on Terra is named Mirror Protocol and can be found at https://mirrorprotocol.app. The Solana version would ideally be extremely similar to the existing dApp. This will allow the reuse of code and documentation. However, the smart contacts will have to be implemented as programs on Solana. Fortunately, both blockchains use the rust language so that should make porting a bit easier. The Mirror Protocol project is opensource and code can be found on github ().

solidity ^0.8.11 ERC721EnumerableUpgradeable ECDSAUpgradeable EIP712Upgradeable AccessControlEnumerableUpgradeable ReentrancyGuardUpgradeable StringsUpgradeable MulticallUpgradeable IERC2981Upgradeable Please only apply if you know what the above words mean and you know how to work with them and you are available!

We are looking for an experienced developer for EVM and Solidity smart contracts for smart BCH infrastructure. We are interested in long-term cooperation and have many projects in the field of distributed ledger technology. This project is divided into 2 milestones Milestone 1 – TASK 1 - Create smart contract that includes all functions and features described in the project paper. PDF - Deploy the smart contract on the smartBCH testnet and get it running - test the functions of the smart contract on smartBCH testnet and show all functions and features required by the project paper - test and fix any bugs and optimize the parameters in consultation with our CTO Timeline for successfully finishing milestone 1 = aprox. 10 working days ( 2 weeks ) Unconditional prerequisite an...

Build An Explorer for Cosmos based Project .

Tokens project , need ICO with dashboard and wallet , smart contract and Tokens creation BEP20 full function Website should be laravel or WordPress

We have an ongoing NFT project. We have all the assets and Metadata recorded, we want a custom function that takes the wallet address and the desired name from the user and mints them the NFT. In general terms the algorithm will be :- - Take the wallet address from the user. - Take the Desired Name from the user ( for eg - if the user enters the name Josephine , the NFT name must be Josephine ) - Mint the NFT in backend with the image uploaded in IPFS and metadata and the name from user and bind all them together - Send the NFT to the address of user. We want a fully developed smart contract to help us implement it on our website. Only Experienced person with knowledge of NFTs and Smart Contracts only Place Your Bids. You must give a detailed rough algorithm to us before we hire you

Looking for someone who bas developed a poocoin DEX on BNB Chain - Limit - Market Buy - Stop Loss - BSC - Trading View Charting Library UI Provided. Only bid if you have developed something similar to poocoin and share example URL in your bid. Bids without example of previous DEX with Charting will not be taken into account.

Hi, I would like to create an bot/app that can: - Scan/monitor crypto prices across DEXes (Pancakeswap, Uniswap, etc.) - Identify arbitrage opportunities between these DEXes and execute trade. - Execute trades using flash loans. There are likely many more details (security, accounting for gas fees, frontrunning avoidance, etc.) but this is the main idea. If such a project is feasible, would love to discuss it with you. Thank you, Amey

Yearn vaults allow users to deposit an underlying ERC20 token, and receive yTokens at a fixed exchange rate. Some of the underlying tokens available to deposit can be readily purchased on exchanges, however several yearn vaults take Curve LP tokens as the underlying. A usable integration with Yearn will require the ability to deposit any underlying asset into these Yearn vaults. Hence, following the Set protocol architecture, we need to develop an adapter to deposit and withdraw liquidity from Curve. Here is the specification: @blockdev/BJVjtayP5 Reference of a Uniswap V2 adapter in Set protocol contract repo: If you are interested in my job, please bid with start "Set Protocol"

Looking for someone that can add my 3d models into a metaverse sdk with chainlink.

Looking for someone that can add my 3d models into a metaverse sdk with chainlink.

Looking for someone that can add my 3d models into a metaverse sdk with chainlink.

I'm looking for a blockchain developer that knows react to build an analytics platform that scans the blockchain where we could figure out how many wallets are long term holders vs short term holders of a token. This would first be done to build an analytics platform on top of BNB chain. I am in the process of building out a team of really talented people to build out a new crypto currency called Oaysus. One of the spots I am looking to fill is for an Blockchain Developer. I'm from the United States working with a mathematician from the UK and a designer from Ukraine. Users in our analytics platform will be able to connect their wallets, share their analytics insights / knowledge, sync their youtube channels and twitter feeds and earn subs paid for in our token. The twitch of cr...

run to earn, like STEPN, people need to mint nFt to get access to the smart watch needed. With a native token, i would like to build it on Cosmos but with bridge to ETH and BSC

I have created an LLC called Events by Lissa (). I have a website and I'm listed in thumbtack. I have all these jobs rolling my way, but I'm stuck and can't grab these weddings, parties, social functions, and other events because I dont have contracts, agreements, business cards, thank you letters, logos, brands. I have worked in hospitality my entire life and know many professional chefs, certified insured bartenders, wait staff, DJs, Vendors, Venues, and bands. So I'm a planner of events but also provide professional wait staff, bartenders, chefs, and entertainment. I want professional contract, agreement, and timeline forms with the scope of duties for planning, wait staff and bartending included. I want a client questionnaire tied to my website and based on the cli...

Hi,i need a person with good knowledge in whitepaper creation,roadmap and possible web3 platfom rent to earn creation. The person must be devoted with patience and time to accomplish the job,moast important accepting crypto payments thru our project,we looking for a long term commitment not for a few days

Hello, I am looking for someone who can create multiple NFTs, smart contracts, and the front-end platform for the public to purchase. I've got less idea on the development process but can talk over a call or messages to discuss the idea in detail and take it forward from there. I am looking for a freelancer or a team based in India only to work on the project. Thank you!

Posting this project a second time, please read carefully. Need token staking smart contract for binance smart chain. Project requirements: Taxes, Stake 3,6,12 months, Unstake, Participants: You should have developed bnb tokens in your portfolio. We should test it together before payment on binance testnet.

I have a incomplete project (minting site) that I want to finish (from another developer) but first I would like someone to screen share with me to 1. show me how to set it up 2. code review with me 3. upload smart contract to Blockchain 4. Complete project

Need a technical consultant for a project on NEAR PROTOCOL blockchain. Should be able to work independently on tasks and also be an advisor for othet developers on the team.

react user profile form need 1. need profile page, user need to fill first connect to metmassk 2. admin can view user profile so need login for admin 3. admin can set refferal system same as hyip user invite friend will got commision

As a proof of concept, I would like to set up a demo coin on the Ethereum network. You help me setup that demo coin. Later in a separate job we will set it up for real. The budget now is 100 USD for the demo account.

To build contract for NFT auction on Solana. Bid if you can mint without candy-machine or metaplex.