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Blockchain is a distributed register that is used to maintain a continuously growing list of records, called blocks. It has revolutionary applications in finance (such as cryptocurrencies like Bitcoin) and decentralized applications like online voting.

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    238 trabajados encontrados, precios en USD
    EK Technologies 5 días left

    Quiero hacer una cryptomoneda desde cero. Requeriria una blockchain desde cero o bien desde ethereum. Una app que funcione como wallet y como marketplace y que tenga otras especificaciones que detallare mas adelante.

    $699 (Avg Bid)
    $699 Oferta promedio
    11 ofertas

    crear un token con pools , staking en mi web, quema de tokens, 5% de tasa de conversión , registrado en pancakeswap y contrato con metamask

    $932 (Avg Bid)
    $932 Oferta promedio
    4 ofertas

    We are looking for trained people to develop an NFT game which is based on an isometric city builder, the player has to scale the buildings of his city and thus get real tokens.

    $9699 (Avg Bid)
    $9699 Oferta promedio
    9 ofertas

    Hola necesitaria crear un token con quema de tokens, suply, pools , staking y auditoria. 500$ por realizar el trabajo.

    $592 (Avg Bid)
    $592 Oferta promedio
    14 ofertas
    Crypto wallet app 6 días left

    Am seeking for a professional blockchain developer to help me develop crypto wallet app like trust wallet for both android and ios

    $2250 (Avg Bid)
    $2250 Oferta promedio
    1 ofertas

    Hello, I'm looking for a team to turn my MVP/Proof-of-Concept into a mobile app ASAP for iOS App Store and Android Google Play Store. The MVP is coded in Polygon and the smart contract is already created. It’s going to be a mobile crypto wallet with cool features. The marketplace it will link up to is already being created and should be done in the next week. You would also have to hook...

    $1500 - $5000
    Urgente Sellado Acuerdo de Confidencialidad
    $1500 - $5000
    43 ofertas
    Clone STEEM Blockchain 6 días left
    VERIFICADO

    I am looking for a team to fork the STEEM blokchchain and install it on our private cloud

    $16426 (Avg Bid)
    $16426 Oferta promedio
    34 ofertas

    Looking for a developer who cant add smart contract to my nft site. It needs to be able to mint my 10,000 nft collection from my website onto [iniciar sesión para ver URL] . Each person. Shoule only be able to mint us to 5 nfts out the collection per wallet.

    $1400 (Avg Bid)
    $1400 Oferta promedio
    25 ofertas

    I have already site coded to html. I need same function of coindataflow will give more details if you seem alright to me. my minimum budget is $1200+

    $1242 (Avg Bid)
    $1242 Oferta promedio
    20 ofertas

    I’m working on authentication on internet of vehicles using blockchain It’s a phd problem I only want a code and implementation in omnet++

    $156 (Avg Bid)
    $156 Oferta promedio
    4 ofertas
    Fork of pancake swap 6 días left
    VERIFICADO

    We need a fully functioning fork of pancake swap or can be another DeFi based platform as well. Maximum acceptable bid will be $275.

    $198 (Avg Bid)
    $198 Oferta promedio
    7 ofertas

    We have a project which has incurred some hick ups from sending the 'send coin' signal from wallet to wallet - we require experienced block chain developer to troubleshoot the issue and help us re-connect. Need to hire someone ASAP

    $15 / hr (Avg Bid)
    $15 / hr Oferta promedio
    13 ofertas
    Implementação de API 6 días left
    VERIFICADO

    Possuo um sistema [iniciar sesión para ver URL] que peguei na internet e preciso criar algumas modificações. Precisa entender de api , pois será implementado API de plataformas como blockchain e binance. [iniciar sesión para ver URL] [iniciar sesión para ver URL] Contact (removed by Freelancer.com admin)

    $136 (Avg Bid)
    $136 Oferta promedio
    5 ofertas

    Ox21 domain project Based on IPFS, and decentralized database Work with Ox21 app Every dealer has his Ox21 domain at a cost, contains letters and numbers, space is allowed between letters or numbers, no two or more spaces in a roll, not for the leading or ending Regular cost at 1 JIN, which is US6 for length of 6 or longer, Shorter domain more expensive, 5-digit domain, 100 JIN 4-digit domain, 10k...

    $453 (Avg Bid)
    $453 Oferta promedio
    4 ofertas
    Goose finance fork 6 días left
    VERIFICADO

    I want to implement "Auto compounding" feature to this Goose finance fork. Now that fork has "farms, pools, vault" pages running. but auto compounding is missing.

    $300 (Avg Bid)
    $300 Oferta promedio
    1 ofertas

    Request details Looking for someone who has rich experience in smart contract development as well frontend for dapp. It's neccessary to have knowledge about ethereum token standard such as ERC721, ERC20, ERC 1151, etc in-depth. Let me share more detail on chat.

    $243 (Avg Bid)
    $243 Oferta promedio
    11 ofertas

    I am interested in speaking with you about my existing NFT project and helping me get it into Beta Testing.... I created an interactive NFT application minted on the Hicetnunc platform, I need to allow the nft to unlock features when viewed on IPFS. Currently the interactive NFT I created works (unlocks download feature if user owns it), but Hic does not allow for downloads within their iFra...

    $31 / hr (Avg Bid)
    $31 / hr Oferta promedio
    13 ofertas

    I require a bot purchase airdrop in atomichub without open browser

    $500 (Avg Bid)
    $500 Oferta promedio
    8 ofertas

    -RWA loan able nft . -India rupee on blockchain -defi for Indian market .

    $2927 (Avg Bid)
    $2927 Oferta promedio
    1 ofertas

    we are currently Designing & Developing highly secured & automated web application for Multiple Crypto Currencies trading platform to facilitate Client’s with a platform to trade Crypto Currencies and Possible Automation for Buy / Sell any crypto currencies, we require the services of a expert ERC20, ERC721, ERC1155 Token with smart contract creation. Cryptocurrency Exchange Decentr...

    $715 (Avg Bid)
    $715 Oferta promedio
    14 ofertas
    PanCakeSwap fork -- 2 6 días left
    VERIFICADO

    I have already created PanCakeSwap fork. Need to fix some details, make presale contract and integrate it, host it. React.js

    $140 (Avg Bid)
    $140 Oferta promedio
    2 ofertas

    Нужно разработать NFT магазин на базе [iniciar sesión para ver URL] [iniciar sesión para ver URL] [iniciar sesión para ver URL] Или можете предложить иную базу для проекта. Вся деятельность по задаче будет оплачена. Начнем с ресерча, напишем совсместно с вами и архитектором проекта тз и начнем работы. Работаем по таймтрекеру, Hubstaff. В отклике укажите: 1. Юзернейм в tele...

    $20 / hr (Avg Bid)
    $20 / hr Oferta promedio
    2 ofertas

    Möchte ein spiel entwickeln wie Sims Leute können Spielen und Echtgeld zu verdienen. Im NFT bereich (Blockchain) werden solche Spiele sehr gefragt Bei fragen oder intresse bitte anschreiben unter _________________________________ Want to make a game like Sims People can play and earn real money. Such games are in great demand in the NFT area (blockchain)

    $5824 - $11649
    $5824 - $11649
    0 ofertas

    Looking for a team to build the interface of crypto exchange with desired features

    $1523 (Avg Bid)
    $1523 Oferta promedio
    14 ofertas

    Hi, I am looking for a fulltime Full Stack, Frontend, Backend, Developers Developers to start immediately. - At least 2 years experience in GIT. - We are only looking for freelancers (strictly no company) - You can work Fulltime. - I need your Updated Resume - Please Provide your GITHUB.

    $12 / hr (Avg Bid)
    $12 / hr Oferta promedio
    33 ofertas

    IMPORTANT - PLESE READ - I don't need you deploy me a token I need somebody who can tell/explain me, what value to input on constructor argument "cInitializer" when deploying my own code (see attachments) - How to pre-deploy the Cashier - How to set "SetToken" Contract Code: [iniciar sesión para ver URL]

    $33 (Avg Bid)
    $33 Oferta promedio
    3 ofertas

    Hi, I am looking for someone who can fork Pancakeswap. Here are the detailed requirements. Please go through these carefully: 1. PancakeSwap Fork with our UI Customization 2. We need the following features: Swap, Liquidity Pool, Farming, NFT Marketplace, IDO 3. We have a pre-minted deflationary token, we want to create a new MINTABLE token for the DEX to be used as Native token 4. Our website is ...

    $1707 (Avg Bid)
    $1707 Oferta promedio
    14 ofertas

    Hello, i am looking for blockchain developer with good experience for long term work

    $521 (Avg Bid)
    $521 Oferta promedio
    16 ofertas

    Hi, we're looking for a web developer who are proficient with coding and has an experience with building blockchain game. We are a start-up company looking to create a mobile game in which its system runs with cryptocurrency. We are considering two ways to develop the game which is whether to build the game from the scratch or to buy a source code and develop from it. Please refer to the tem...

    $1302 (Avg Bid)
    $1302 Oferta promedio
    50 ofertas

    NFT marketplace on Binance Smart Chain I am looking for the developer can build the NFT marketplace on Solana or Binance Smart Chain blockchain. Will allow users to add one NFT or entire collections. Interface similar to Opensea and Niftygateway. We will decide which blockchain we finally use when we select the freelancer. We are still gathering info. Requirements : - You must have built at ...

    $10055 (Avg Bid)
    $10055 Oferta promedio
    18 ofertas
    NF COLLECTION ON KADENA BLOCKCHAIN 6 días left
    VERIFICADO

    Kadena blockchain nft collection Marketplace Minting It requires pact programming language experience

    $4703 (Avg Bid)
    $4703 Oferta promedio
    8 ofertas

    I'm looking for a freelancer who can transcribe a 100 minute audio file. Should be fast too. Also, familiar with blockchain.

    $334 (Avg Bid)
    $334 Oferta promedio
    67 ofertas
    Smart Contract Expert 6 días left
    VERIFICADO

    Our company is looking for professional blockchain developer who has rich experience in smart contracts(5+ years), solidity, solana and rust Selected developer will work on smart contract field with our team.

    $2174 (Avg Bid)
    $2174 Oferta promedio
    28 ofertas

    COMPANY OR TEAM DO NOT APPLY..ONLY INDIVIDUALS ARE WELCOME..WE WANT INDIVIDUAL GUYS IN FULL TIME BASIS FOR A LONG PERIOD. Requirement of a FULL TIME Blockchain developer who have a knowledge in NFT [iniciar sesión para ver URL] talking with you and discuss your [iniciar sesión para ver URL] can only discuss the project after you have signed NDA and IP with us. The company is a UK ba...

    $1347 (Avg Bid)
    $1347 Oferta promedio
    10 ofertas

    We need a developer for the Solana blockchain that we can trust and work with to create up to 7,777 NFTs from 100 - 150 images. Need to program on solana network to allow each NFT to randomly generate when minted. Requirements: -Experience with NFT contracts - Ability to communicate with the team in English. - Trustworthy reputation. - Experience in NFT development. - Be able to work within...

    $1854 (Avg Bid)
    $1854 Oferta promedio
    18 ofertas
    Full on pinksale crypto launch 6 días left
    VERIFICADO

    Hi everyone, I am interested in creating a professional and legitimate crypto project on binance smart chain using pinksale (or any other platform). I would love to find a team that have experience from A to Z on crypto creation. This would include: Full set up for presale on Pinksale (or another platform) Assistant for launching on pancakeswap Development of crypto web page - At launch, I ...

    $4958 (Avg Bid)
    $4958 Oferta promedio
    13 ofertas

    We have a new crytpo coin that we would like to promote on an exchange

    $185 (Avg Bid)
    $185 Oferta promedio
    11 ofertas

    Hello, We are looking for someone who can create and design a beautiful Minting Website for our NFT Project We need someone who is experience and already has some sort of template ready to deploy. We do not want to take weeks doing this, but rather have it ready in 24-48 hours. If you can do this, show us your portfolio and lets do this.

    $719 (Avg Bid)
    $719 Oferta promedio
    27 ofertas

    Hey, Need someone to integrate metamask to my website and do the Mint feature and smart contract. Feel free to apply! Can be ongoing project for the guy with the right skills.

    $735 (Avg Bid)
    $735 Oferta promedio
    32 ofertas

    I have a new exchanger crypto to crypto website and I want a sales manager in order to find and attract customers to exchange cryptos through our website

    $3 / hr (Avg Bid)
    $3 / hr Oferta promedio
    4 ofertas

    I have a new crypto exchange website and I want to start generate clients in order to turn them on sales

    $10 / hr (Avg Bid)
    $10 / hr Oferta promedio
    9 ofertas

    Project is to create an NFT drop event with 10,000 NFT's that will be on either opensea, solana, or polymatic market places. Must be connect wallet for purchases of NFTs and create the page with pictures and road map. I will provide 10,000 nfts and will provide details on page art and roadmap. Also if you have knowledge on being able to airdrop crypto to the owners of the NFT's that wou...

    $665 (Avg Bid)
    $665 Oferta promedio
    16 ofertas
    Smart Contract 6 días left
    VERIFICADO

    I would like to use [iniciar sesión para ver URL] to create a small smart contract using solidity programming language. This should be similar to a market shop.

    $195 (Avg Bid)
    $195 Oferta promedio
    18 ofertas

    Hello! I want to combine mining + frontrunning on uniswap, using MEV-type value extractions. I'm looking for a high end developer to help me with this project. So just to clarify what I mean with the mining + frontrunning combo. I will post some info from a site: "A new revenue replacement is quickly becoming available for mining networks, called miner extracted value (MEV). It is com...

    $13899 (Avg Bid)
    $13899 Oferta promedio
    10 ofertas

    A mobile App based document storage in Blockchain. I also need a website landing page for the App for Apple, Android and windows. I need an experienced blockchain developer and will need to review prior portfolio.

    $373 (Avg Bid)
    $373 Oferta promedio
    14 ofertas

    The Supply is limited to 1,000 NFts and each draw is made manually not like generative collections. The rarity is defined thanks to the difficulty of the draw, the time spent and their storyboard. If I should add them manually I need a panel to be able to add the attributes, the storyboard, the name and the factions. something like: [iniciar sesión para ver URL] Advanced filters are neede...

    $485 (Avg Bid)
    $485 Oferta promedio
    19 ofertas

    Looking for Ethereum/Solidity developer to configure BlockScout block explorer on the Songbird Network by following the documentation on BlockScout. BlockScout is a blockchain explorer used by many EVM compatible blockchains. [iniciar sesión para ver URL]

    $771 (Avg Bid)
    $771 Oferta promedio
    7 ofertas

    I want to make a token, would anyone like to do this work, he would like to .I have to get these things done . 1-Token Creation 2-Landing Page 3-Panchkalwap Listing 4-White Paper 5-Airdrop 6-Cayenne Gecko Listing 7 -website Devloped Note :-People who can't work in the amount given by me, please don't bid

    $333 (Avg Bid)
    $333 Oferta promedio
    2 ofertas

    Looking for Ethereum/Solidity developer to configure BlockScout block explorer on the Songbird Network by following the documentation on BlockScout. BlockScout is a blockchain explorer used by many EVM compatible blockchains. [iniciar sesión para ver URL]

    $172 (Avg Bid)
    $172 Oferta promedio
    4 ofertas

    Hello there Am here in need of a professional blockchain developer that can handle solana nft game and marketplace together. If you are really good at this point Kindly drop your portfolio

    $860 (Avg Bid)
    $860 Oferta promedio
    7 ofertas