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    2,365 solidity jobs found, pricing in USD

    I want to mint all my 10k NFTs and avoid gas fees when reveal it can someone help me? new freelancers will be ignore

    $386 (Avg Bid)
    Featured
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    57 bids

    We need to create the smart contracts in Solidity to mint NFTs which are Planets and have the following attributes: - Coordinate in X,Y,Z. - Rarity - Industry - Biome - Size - Name -ID - Color - preview - Price (depends on the rarity of the planet: the rarities are: - common - Weird -Epic - Legendary - mythical What can be done with the planets? - They can burn. - mint -To transfer

    $601 (Avg Bid)
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    39 bids

    I am looking for an experience full-stack NFT minting website developer to help me build a presale and public sale website. 1. Reactive minting website with wallet integration - presale whitelisting - phased minting to avoid gas wars 2. Smart contract programming: - Royalties - Rarity metadata - upgrade ability - utility functions I am also looking for someone to provide advisory for our project to ensure best practices and scalability.

    $51 / hr (Avg Bid)
    Local
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    8 bids
    Solidity Contract Correction 5 days left
    VERIFIED

    Hi, I need the following contract to work without error and to do what it is supposed to do. Your job is to make it work and remove any errors or trojan code. It needs to be compiled without issue in Remix.

    $150 (Avg Bid)
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    Looking for someone to help complete my trading bot in the DeFi cryp[to space for triangular arbitrage using 0x 1inch and dydx - i have 98% code complete need someone to complete the program must know python java. maybe solidity - i have the arbitrage scanner i have the smart contract code and some instructional video if needed - need to add exchanges and code into one smart contract

    $951 (Avg Bid)
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    15 bids
    Build me a staking platform 5 days left
    VERIFIED

    I want you to build a native staking platform like this - (just for reference) I have my own game and I want a staking platform like this (front end + solidity contract)

    $806 (Avg Bid)
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    10 bids

    Hello fellow developers, we are a group of professionals working on our disruptive NFT Project. We are looking for a website with the following capabilities: - Simple landing page with dynamic content, showcasing our art - Presale, whitelist, giveaway features - Smart Contract Deploy...Minting Dapp - Public/Private Minting - Wallet Integration (Metamask) - Open Sea Integration - Random Token Mint - Dynamic Metadata URL ( Reveal NFT ) - Store on IPFS - Scalable, resilient website hosting (To handle the peak when the sale launches) We are all computer engineers, with average programming knowledge, but with only a basic knowledge of blockchain and NFT engine development (Solidity, OpenZeppelin etc.). Thank you all in advance for the help. Looking forward to working wi...

    $1450 (Avg Bid)
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    49 bids
    Need a Smart Contract Created 4 days left
    VERIFIED

    I’m looking to hire a developer with solid experience in creating flash loans/smart contracts for a very particular purpose which I will explain further. MUST be fluent in Solidity and English. No exceptions.

    $17 / hr (Avg Bid)
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    Request details The morphological feature are: Nuclear/cell area ratio Nucleus eccentricity Nucleus circularity orientation perimeter solidity The non-morphological features: entropy Moran index Deliverables I need a Python script that takes an input image and produces the measurement for the above morphological and non-morphological features.

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    Hello, We are looking for someone with experience in Solidity Smart Contracts ERC721 that can create a Full Audit of our Smart Contract. 1. Check code for Errors, Mistakes, Future Problems, Logic Issues. 2. Compile and Test Deploy on Rinkeby Successfully 3. Verify and Publish in Rinkeby Etherscan 4. Test all functions, whitelist, minting, flip state, change price, etc. Make sure everything works and it causes no logic issues 5. Create sample collection on Test OpenSea to see that minted item appears on opensea 6. SetBaseUrl test to make sure opensea is retrieving the data In summary, check that everything works well and that we will have no problems when deploying on mainnet. The Smart Contract is already READY and using OpenZeppellin so in theory it should have no issues b...

    $609 (Avg Bid)
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    39 bids
    NFT Game 4 days left
    VERIFIED

    Please quote the creation of NFT game, browser based. React frontend and Solidity contracts. Reply with github, past project and cost of your project. Thank you

    $1624 (Avg Bid)
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    37 bids

    A successful candidate will need to posses the following abi...abilities: - JavaScript - HTML - CSS - Node.JS - Game Design Patterns / Fundamental Game Design - Great communication skills both typed and voice calls. - Knowledge of Web3 (Solidity) is a plus. - Unity Game Development The game you'll be working on is a multiplayer top down shooter similar to the game found here: . The game map and assets are ready. The game will need to be built to function on PC web browsers with multiplayer. Servers will need to be scaled accordingly to match player counts. Finally, we'll need blockchain integration by assigning certain in game assets to ERC1155 & 721 NFTs made by our solidity team. By doing this, the game allows users to access the verified NFTs within their...

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    We are seeking an experienced Rust Developer to create Smart Contracts for the Solana Ecosystem. The right candidate must be proficient in Rust and have one or multiple live smart contracts they can provide as proof of their work. We have a huge number of projects available for ongoing work throughout 2022 and beyond. If you also have experience with Solidity this is a bonus and we will take this into consideration during the hiring process. When applying for this role, please provide links to the live Smart Contracts you've developed on Solana. We have work available immediately and will be fast-tracking the process, so please apply quickly and make yourself available for an interview.

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    26 bids

    I am looking solidity and solana expert. I have already frontend(react.js) and solidity contract. But I want to change from solidity contract to solana contract. And some change at frontend. Start your bid with SOLANA

    $201 (Avg Bid)
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    I'm building NFT Website. I'm looking for a developer who has much experiences in solidity, web3.0, dao etc. Please feel free to contact me if you are good fit.

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    BBC ETH Smart Contract ERC 721 NFT: - Mint - Whitelist - Reveal (delayed 2 days after mint) - Reserve (presale and public sale mint raffle) - Pre Sale of Genesis collection (1,000) and Public Sale of rest of collection (8,108) - 1% lifetime resale royalty to mint holder - 5% resale royalty to Founders - 3.5% resale royalty to community wallet for $CHAKRA token - 10% NFT mint royalty to community wallet - Breed function - ‘serum’ like BAYC (fork) ERC 20 Token ($CHAKRA) - [ ] Token ⁃ Burn ⁃ Mint ⁃ community wallet - votes, hierarchical ⁃ Change NFT Name ⁃ Staking (Chakra Collection) ⁃ Mint Buddha NFT ⁃ Whitelist - Slim Buddha - new NFT collection (costs 500 $CHAKRA) - [ ] Claim $CHAKRA - [ ] Chakra ‘genesis’ Buddha- earn 10 $CHAKRA daily x 10 years (Staking) only 100...

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    Мы международная группа создателей проектов NFT, наша команда разбросана между Канадой и Монако. Мы ищем разработчика Solidity, который поможет нам в наших усилиях и сделает процесс более эффективным. Нам нужен человек, который разбирается в работе со смарт-контрактами и может помочь нам запустить сбор NFT за один день. Некоторые из наших проектов готовятся месяцами, некоторые — несколько часов. Вы будете работать в динамичной среде с международной командой.

    $32 / hr (Avg Bid)
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    Hey! Noticed you are working with solidity, I have a quick job to edit a contract, let me know if you're interested!

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    Hey! Noticed you are working with solidity, I have a quick job to edit a contract, let me know if you're interested!

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    Hey! Noticed you are working with solidity, I have a quick job to edit a contract, let me know if you're interested!

    $30 (Avg Bid)
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    Hey! Noticed you are working with solidity, I have a quick job to edit a contract, let me know if you're interested!

    $30 (Avg Bid)
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    1 bids

    Hey! Noticed you are working with solidity, I have a quick job to edit a contract, let me know if you're interested!

    $30 (Avg Bid)
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    1 bids

    Hey! Noticed you are working with solidity, I have a quick job to edit a contract, let me know if you're interested!

    $30 (Avg Bid)
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    1 bids

    We are looking for experienced Solidity developer who can work with us as a part-time or full-time employee. Good salary and benefits

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    13 bids

    i need to get this done asap...

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    ...this job ** Preferred based out of India Job Description : -------------------- Currently, we are seeking an experienced, smart-contract blockchain developer. The developer must have at-least 2 years of relevant working experience in blockchain development. Responsibilities: ---------------- Proven experience interacting with the EVM and writing high-quality, well-tested Solidity Deep understanding of EVM, Solidity, Vyper and JavaScript Knowledgeable about smart contract security and best practices Experienced user of Hardhat/Truffle and Experienced user of Git version control system Passionate about DeFi and knowledgeable about industry trends Understanding of tokenomics and governance design Experience working with a remote and a distributed team. Working knowled...

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    Solidity project 2 days left

    Write smart contract to mint fungible token (Rapid-X) using ERC-20 total supply should be fixed to 1 million. Only a particular (EOA) address has the right to mint the token. The burn function should be internal.

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    On Solidity 2 days left

    Q1) Write smart contract to mint fungible token (Rapid-X) using ERC-20 total supply should be fixed to 1 million. Only a particular (EOA) address has the right to mint the token. The burn function should be internal. Part 2 : Write a staking contract which accepts the deposit(Rapid-X) from the user. On stake charge them a deposit fee of 1%. On withdrawal return the (staked token - deposit fee) token back to the user.

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    Hi, freelancers. I'm looking a blockchain developer who is skillful in and React.js. Also some Solidity experience is required. Frontend was completed with React.js. You have to connect various wallets.(metamask, coinbase wallet, wallectConnect ..etc). my budget is fixed. ($100 for first task). and You should do other tasks. we can discuss other tasks via chat. Thanks.

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    24 bids
    Solidity Developer 1 day left
    VERIFIED

    Looking for a Developer who can write Solidity for smart Contract

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    29 bids

    Good day coders, I need a smart contract with following rules. Please give me an exact price. 1) it should be a purchasable token that can be launchend on binance smart chain 2) should have 2 rounds of whitelist each lasting 90 seconds at launch 3) it should have function to add wallets to whitelist for the above mentioned two rounds. (or I can input wallets manually in some array in the contract) 4) Should have Trading enable/ disable function - so I can turn it on or off 5) Should have customizable buy and sell tax. 6) should have option to turn off Sells.

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    Developer proficient in Js and solidity needed for development of NFT trading web app.

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    ...features post-MVP; We are building an NFT trading platform. We want you to help us create an NFT trading smart contract on the Ethereum blockchain. If you are interested in NFT's and the blockchain ecosystem, we want to hear from you! Option to extend if the 2-4-month period goes well. Required Experience: Contact with the blockchain and NFT ecosystem is mandatory; Good foundational knowledge of Solidity and blockchain development is mandatory; Experience in web3 projects is a huge plus; The goal here is to create a disruptive project in the NFT space. You will work with highly innovative tech and have some fun in the process! To be a best fit for this project you need: Ability to communicate clearly; Be a self-started and good at managing your time; Prior experience with...

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    I have some code I would like reviewed thats written in solidity. if you could please tell me what it does and if it is safe to deploy it would be appreciated! It is only 542 lines. I would like to know what data it is collecting and if it will ciphen all the money from my wallet. Thank you!

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    I'm looking for a good front and backend that can make a dapp dashboard to show rewards for a reflective token so web3 and solidity knowledge is required. And also make a nice looking landing page to explain the crypto project, with a few elements like sections for tokenomics, roadmap, a header, a footer, etc Knowledge in react is recommended for the landing page. Only reply if you qualify please. This is an example of what I'm looking to achieve:

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    Experience with , Solidity Front-end development skills with React Experience with Node JS and developing RESTful API Good knowledge of NoSql and experience with Relational Databases is a must Good knowledge of technological understanding of Ethereum Strong researcher skills in the field of distributed systems, blockchain technologies, DeFi, smart contracts

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    Write & Deploy ERC-721 Smart Contract Write & Deploy Breeding & Staking Smart Contract NFT Write & Deploy 3D VRS aviator character (Metaverse) Write & Deploy Mint Function web.30

    $2401 (Avg Bid)
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    Teach me to fork OlympusDAO 23 hours left
    VERIFIED

    I'd need someone to walk me through the process of forking OlympusDao. From pulling the repository over releasing it to the testnet to releasing it to the mainnet. I have solid fundamental programming knoledge, I just get lost with so many files. I've tried working with solidity before and have been using javascript (ReactJS and NodeJS).

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    Hello Freelancers. I need Security expert for Crypto websites , Let's arrange a call to discuss details, Only apply if your are expert to save my and your time as well, write I am human in the beginning of cover letter so that I would come to know you read the job description, Looking forward to your proposals.

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    ...my own parameters such as: contract address, gas price, max. buying price of the token, selling price of the token, quantity of tokens to buy/sell. The interface needs to be easy to use. IMPORTANT: This project MUST be taken on by an experienced & competent developer who has done this type of project and can complete the task quickly Skills: Python, Blockchain, Node.js, Frontend Development, Solidity ...

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    I have ETH NFT DAO project Please have previous experience with smart contracts on the ETH network.

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    Hey buddy. We have a swap platform (DEX with farms and DeFi components) that we wan to launch on BSC (Binance Smart Chain) we have the UI overall layout in reactjs and we have the smart contracts in solidity, what we need is integration between the two. Basically we want you to integrate our React UI to our Smart Contracts. Can you do it? Can you give me a price for doing this job?

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    Solidity, Truffle, BEP20 Expert required for new token creation. Thanks

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