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    56 jobs found, pricing in USD

    I have ICO application for own token developed by React. I need a developer who can integrate presale and airdrop into ICO system.

    $628 (Avg Bid)
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    7 bids
    TRX payment API 6 days left
    VERIFIED

    TRX API with , smart contract, solidity, node.js.

    $200 (Avg Bid)
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    1 bids

    I a looking for a senior blockchain developer for an NFT minting website. Could u please speak to me for further steps?

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    50 bids

    Seeking an experienced blockchain developer that can create an ERC721 Smart Contract and build a new website that interacts with the ERC721 Smart Contract. *** Note: Only apply for this job if you have experience creating ERC721 Smart Contracts. What we need created: 1. ERC-721 Smart Contract CREATED: According to standards which ensure that it can be read by NFT marketplaces, such as OpenSea. 2. WEBSITE CREATED FOR INTEGRATION OF ERC721 SMART CONTRACT TOKENS We need the following 5 pages created for the new website: 1. Token minting page: Here we upload details for minting non-fungible tokens of the ERC721 Smart Contract. We will be creating NFT Artworks. 2. Signup and Login page: Uses METAMASK and email 3. Account page: Displays details of users account 4. Main page: Displays a...

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    Dear freelancers, ### SMART CONTRACT 1 ### Write a Smart contract for staking token, copy and adapt the following contract: or requirements: - All functions in the contract are to be changed only by the admin. - possibility of staking and unstaking without locking. - The "staking parameters" entries must be identical to the attachment. FRONT END - The interface must be similar to the one in the attached image, available at the link: ### SMART CONTRACT 2 ### Write a smart contract for the minting of Stablecoin in the fantom blockchain, you can copy and adapt the following contract: requirements: - All functions in the contract are to be changed only by the admin. - The contract must be able to accept only the tokens that the admin adds to the whitlist, the first ...

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    We need to start a Blockchain Game with NFTs Integrate with ImmutableX (IMX) Create custom ETH Contracts - Deliverables A simple POC of Game that later on can be improve and meet our specific requirements and integrations We're looking for long term developers

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    We have a DApp website Project, and today we present some problems with events subscriptions shows: RPC Error: Internal JSON-RPC error. {code: -32603, message: 'Internal JSON-RPC error.' Message: too many request.

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    Looking for a front end app on iOS and android for user to easily add NFTs. I would like them to be able to transact (send and receive) crypto currency while also being able yo add new NFT tokens created.

    $581 (Avg Bid)
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    Interaction page to metamask with bep20 token crowdsale. I would like a dapp, that anyone can connect to metamask and buy my bep20 tokens.

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    NFT MARKETPLACE (BSC) 6 days left
    VERIFIED

    need a marketplace built into our website template. to see how a dapp appears in our current website design we should be the only ones allowed to upload, create, mint nfts there. but others can purchase our nfts and also resell them there. I want to be able to edit as much as possible html wise without having to recompile

    $770 (Avg Bid)
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    Erc 721 smart contract with following functions : - minting - whitelist sale - public sale possible public sale no2 - nft on stored on blockchain not on ipfs - minting for founder and for airdrop ( specific number of nft) - ability to trade nft on website ( exchange nft - no buy sell) - connection with all possible wallets integration ( using wallet connect) - royalty fee for each transaction including transfer ( trade) - ability to trade different number of nft to different number ( expl i will give you 2 nfs for 1 of yours)( exhange) - random mint, ( not one after another) - integration with open sea or immutable x marketplace - no front end work just integration with website ( create minting button) and web3. - deploy on live net ( Ethereum blockchain) i will provide similar contract...

    $190 (Avg Bid)
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    Regarding the launch of a huge NFT project to transport 8000 Cro-magnon Man alive in the Metaverse, we are looking for our Developer to develop the smart contract. Composed of a team of entrepreneurs and NFT enthusiast we have build the few last month an ambitious project behind this collection and you can take part of this awesome adventure. We are looking for a blockchain developer who has React skills and is experience with Integrating smart contracts. Developer Requirements: At least 2 years of experience as a blockchain developer. Knowledge of blockchain protocols. Must have problem-solving skills. Skills and Expertise: Javascript React Node.js Typescript Web Application Web3 Smart Contract If you are interested in working on this project, please reach out to me. I'd prefera...

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    Type of Site- ERC-721 Token Minting Website Work- Front-end UI changes and features integration We already have our site up and running with minting already started. We need someone to work on the Front-end to improve UI/UX along with integrating some features which are already ready at the back-end. Share your details and past working experience in the field, so we can have a meeting on our discord channel after shortlisting. Website-

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    Looking for a developer that can create a custom contract for an NFT project that allows NFT holders to be validated against holding 2 or 3 and upon validation redeem / be airdroped a new one.

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    TOKEN FEATURES o Defi NFT Metaverse Project o Binance Smart Chain o There will be pre-sales on our own website o Whitelist will be made both for the sale on our site and for the ICO sale o %3 of total token amount will be sold on own website pre-sale (1 LASM = 0,035 USD) o ICO will be done on launchpads, IDO will be done PancakeSwap v2 o ICO price will be 1 LASM = 0,05 USD o Only 12% of total token amount will be on ICO sale o Tokens sold in ICO will remain locked for 3 months o 40% of total token amount will be locked for 2 years o NFT items will be minted on our own website. (metamask wallet connection) o Minted NFT items can be sold on the 3rd party NFT marketplace. Also NFT items can be bought and sold in the LasMeta marketplace o NFT Pre-sale will be done for 666 Whitelisted address a...

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    That Task includes the following: Main (Landing) Page contains comprehensive, presentable information about SVET Platform's System, Vision, Team and Token (according to the SVET Platform Pitch Deck); New reviews and reports must appear on the Main Page as they are posted by its authors. Users might sort reviews and reports according to projects' platform, chronology, industry and ranking. There must be the functionality to algorithmically archive / retrieve old reports. The SVET Rating Page must allow for user-friendly experience of filling in reports & rating Forms. Ratings must be alternatively (depending on users' selection) presented in the Rating Table by their designators (letters or icons); On Users' individual page (to be made) there must be included a f...

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    Hi I am looking for an expert token developer to help me develop my token on solana and my budget is $50

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    Hi I am looking for an expert token developer to help me develop my token on solana and my budget is $50

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    I need Wax wallet login page creation and some basic smart contracts. check this out for more details List of game-based NFT's the user has in his wallet, as shown in the frontend .This is ready. Only its creation on AtomicHub remains. Example of what we are trying to implement. I think this can be implemented faster than developing a NFT staking platform from ground. Atomichub gives wax as fees so the users will also get 50% fees share would be given to those who hold our Zombie Scientist Badge according to different rarities. To get us whitelisted which will require wax login page and smart contract for 50%fees being redistributed,Before 10/12/2021,the day our first sale occurs,To be completed. If you are interested in this, please bid with 'success'. Thanks.

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    NFT Game 1 4 days left

    Hello! I am Thiago, from Argentina. I am looking for a WEB developer who can join our ACTIVE project on NFT. I hope you can contact me.

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    OlympusDao Folks 4 days left
    VERIFIED

    Our team is trying to find someone who has forked OlympusDao before, and understands what are (1,1)(3,3)(4,4)(9,9). Please do not bid if you haven’t done anything before, and please share your past work when you bid! Thanks

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    Looking for a Solana Expert 4 days left
    VERIFIED

    Hello I have a built smart contract for staking NFTs on Solana. I am looking for a web3 & react expert for the smart contract. The candidate have to build frontend for staking page and connect smart contract in to frontend. Required skills: -Phantom Wallet knowledge -Solana/ -React Please bid if you are an expert. ***Don't waste time for bidding*** Please bid with "Solana Expert" Thank you

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    i need to fork (change old brand variable.) I need to modify a smart contract bep20 in solidy for disable the sell of token when the marketcap or price fall under 5% of the market cap or price and reactivated after the marketcap or price recovered the 5 %. example you start at 0$ and in hight 1$ the marketcap or price decrease for 5% so here the marketcap or price is 0,95$ at this marketcap or price the sell is disable you need to rebuy the dip until 1$ when we have recovered the 5% the sell is enable I need you for fix this problem.

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    Hi, all. I look forward to the freelancer who can build the imx smart contract and integration on our website. I already have website for integraion. You will build the smart contract for minting and implement the integration on current website. Please apply me if you can do the project. Cheers.

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    NEED A URGENT WEBSITE CREATOR. CREATIVE, SMART , THREE GS , HTML 5, VERY CREATIVE JOB.

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    I need a professional smart contract developer for a project, I will be forward the project details as soon as you bid this project.

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    We are looking for someone with experience in web and/or smart contract development for an NFT project. - Web design and deployment for metamask wallet, NFT marketplace connection - Smart contract (ETH blockchain) for NFT uploading, staking etc. If you are interested, please feel free to get in touch to find out more.

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    I have two smartcontracts that I would like to interact with, however their interface is not public. Need someone who will play with them and then write me the interface.

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    This project is just a basic paid test app to test you if you are suitable for bigger web3 projects. If you successfully finish this project you may be selected to work on a big project. This is very easy and fast to do for those who knows what they are doing so do not big high. Make simple app with 3 parts like it is described here

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    Hi, I have an erc20 and erc721 smart contract on Etherscan but one of them couldn't be verified. I think there might be some error when my dev deployed it previously so I'll need you to audit the codes asap. I'll also need you to fix my website's minting code. The minting button was based on an old smart contract and currently doesn't work with the new contract.

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    Online Poker Game 3 days left
    VERIFIED

    Hello, I am looking for someone who can help me with creating an online live feed poker site. It would also need to have crypto currency as the payment system to purchase in game currency the in game currency will have no value but you will be able to tip live dealers and also send tips from the public chat room. It will have options for public games and well as private games. We can talk about the project further in detail.

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    ? YittBox is looking for a qualified Blockchain developer to join our team. You will be working with our clients for Blockchain projects. ? -------------------------------------------------------------------------------------------------- ? IF YOU CONTACT US OUTSIDE OF UPWORK, YOU WILL BE AUTOMATICALLY DISQUALIFIED! PERIOD, NO EXCEPTIONS.? ------------------------------------------------------------------------------------------ We're looking for a Blockchain Developer to join our team: - Proven experience as a blockchain developer. - Advanced proficiency in programming languages, such as C++, Java, and Python. - Extensive experience in back-end development, algorithms, and data structures. - Knowledge of cryptography and blockchain protocols. - In-depth knowledge of best practice...

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    Hello Devs! I want someone to work with me in a project "Exatly" the same as this one:

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    Crypto Tech Community 3 days left
    VERIFIED

    I want to create an educational Crypto Tech community website that includes educational videos, local meetups, mentors and tech events. I want to empower individuals by having a seat in the digital currency revolution.

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    We are seeking for an experienced blockchain developer who can help us. We have a website I've been working on and we've run into roadblocks because we don't know hashkell. It's a website that pulls data from the cardano blockchain. If you know haskell then its easy to understand the cardano blockchain.

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    Hello everyone, i lead a project of Lineage 2 (game) Private Server and i want to add blockchain on it... We have all website done, up and running. What we need: - Connect Metamask/Other wallet into website and into UserCP for Donations/Buy IN GAME items. - Some way to connect blockchain (BEP20/ERC20 token) into the game for deposit and withdraw - Create a Dex where players can Farm/Stake/Swap our game token for other cryptocurrency In Future - Create a simple NFT Marketplace

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    I need a web3 based frontend for my NFT marketplace contract on bsc. Complete with design and smart contract calls functions. Please write in the offer how long it will take to do it approx, automatic replyes without this info i delete. contract : functions needed to interact from frontend with contract: buyNFT_BNB buyNFT_Token farm_nft unfarm_nft mint_public setPrice

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    See requirements here:

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    We're looking for an NFT developer who can help us launch our NFT project in 30 days. We're launching a one-of-a-kind brand that we truly believe will appeal to many people in the crypto / NFT space. Some of the responsibilities include: - Creating a mint on demand website - Upload 10000 OOAK algorithmically-generated tokens on the blockchain with their metadata - Create smart contract - Whitelist keys for a pre-sale - Create bots for Discord - Conduct research to identify gaps/additional tasks and responsibilities In addition to pay, we will be giving the chosen candidate 1 token from our first collection. Start date: ASAP

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    We are looking for a web3/wordpress dev that can help us call our smart contract functions from the website. The website is built with wordpress. We need the following: 1. Connect Metamask/wallet connect button and display connected wallet. 2. Buttons on wordpress products / pictures page (it would be best with shortcodes) for functions linked with our contract on BSC scan. contract :

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    I'm looking for a reliable React Front-End developer for 10+ months of contract. is a huge plus

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    Hello, I am looking for someone with great experience in solidity, web3 and JavaScript to build a smart contract bot for the binance smart chain. Meaning a bot that will buy and sell tokens (usually newly listed tokens) but will do so using smart contract(s) instead of nodejs or python to interface with the pancakeswap router. Ina nutshell, the smart contract is doing the actual buying and selling. The client (bot) will do the prepping and reading pending and sending tx. We can discuss the actual designs and feature after it's been concluded that you are a good fit. Please let me know previous Blockchain experience and if you have done smthg similar. Thank you,

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    Blockchain game 1 day left
    VERIFIED

    I am looking for a full-stack engineer that helps us to develop a Metaverse sandbox game like Sandbox

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    Please check the micropets website and read through their whitepaper before commenting. I need: A small NFT marketplace for buying and selling the NFT's that are minted with the token A random NFT minter. A Dapp much like A token

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    There isn't any special requirement in new token. Will provide token name, supply and symbol. You can easily customize open source. Code should have committed step by step.

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    Looking for an experienced developer for an under 1 month 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 a best fit for this project you need: Ability to communicate clearly Dedication to meet project deadlines in a timely manner Attention to details

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    Hello I am looking for senior metamask and integration expert. I will provide current website link and source. Please check out and click "Metamask" to move next page. I will need you integration after check. I will share detail with right candidates. David

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    I am looking for senior metamask and integration expert. I will provide current website link and source. Please check out and click "Metamask" to move next page. I will need you integration after check. I will share detail with right candidates. thanks

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    I am looking for senior metamask and integration expert. I will provide current website link and source. Please check out and click "Metamask" to move next page. I will need you integration after check. I will share detail with right candidates. thanks

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    I find an expert of Nuxt.js 1 hour left
    VERIFIED

    Hi, there. I have an NFT marketplace platform. But I find the issue with my website. It was built with If you are an expert is not a big problem for you. I will wait with crossed hands. Thanks.

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