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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    We are looking for strong Rust blockchain developers who have at least 3 years of experience in this field. if you think you are right candidate please feel free to contact me. Thanks.

    €1492 (Avg Bid)
    €1492 Μέση Προσφορά
    10 προσφορές

    We are looking for strong knowledge of Rust Blockchain Developer with more than at least 3 years of experience. Portfolio of previous work and CV must needed. Thanks.

    €1329 (Avg Bid)
    €1329 Μέση Προσφορά
    14 προσφορές
    Crypto Exchange Development 6 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    Hello there! We are looking for a developer who can create an exchange for us like 'wazirx'. Please mention I read it in the beginning of your proposal, as we will not consider proposal without this. The exchange should have, registration, KYC, deposit, withdrawal and trading available in it. Also please share your related work if any.

    €2636 (Avg Bid)
    €2636 Μέση Προσφορά
    17 προσφορές
    Arbitrage Bot -- 2 6 μέρες left

    I am interesting in crypto arbitrage Bot that i will be able to access in all DEX and Coins.

    €1046 (Avg Bid)
    €1046 Μέση Προσφορά
    10 προσφορές
    blockchain node service 6 μέρες left

    blockchain node service i.e. Infura, alchemy, ankr, chainstack

    €13374 (Avg Bid)
    €13374 Μέση Προσφορά
    14 προσφορές

    infura,alchemy,chainstack for existing example Making Aptos and starknet, sui first, then multiple chains

    €8981 (Avg Bid)
    €8981 Μέση Προσφορά
    11 προσφορές
    Blockchain mall system 6 μέρες left

    I need to find, blockchain mall system,

    €53 / hr (Avg Bid)
    €53 / hr Μέση Προσφορά
    12 προσφορές
    crypto and Forex trading app development 6 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    we are just starting a crypto trading and investing app with all forex pairs, we need this to maintain holdings and day trading with this app in all symbol trades. android app with full website and backend management tools

    €1539 (Avg Bid)
    €1539 Μέση Προσφορά
    26 προσφορές
    BUILD NFT LAUNCH PAD ON PANCAKE SWAP ON NODE. JS 6 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    I need more than 5 years experience blockchain developer that can do backend and integrated smart contact to the site. I need the site to be similar to . I already have react project website design done as what you need to do is to create backend and integrated smart contract. My site is , so you need to continue develop from this point.

    €1624 (Avg Bid)
    €1624 Μέση Προσφορά
    74 προσφορές
    Plataforma de prestamos crypto 6 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    Plataforma de prestamos conectado a binance o defi.

    €526 (Avg Bid)
    €526 Μέση Προσφορά
    29 προσφορές

    Cosmos DB with Go Lang experienced candidates

    €722 (Avg Bid)
    €722 Μέση Προσφορά
    5 προσφορές

    I need bsc smart contract developer who can handle the authority fo owner. Please contact with me if you have experience with deploy to mainnet

    €757 (Avg Bid)
    €757 Μέση Προσφορά
    5 προσφορές
    Smart Contract development 6 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    Looking to have a smart contract developed, which would allow the minting of digitised artworks. Current thoughts are to use the Solana blockchain, happy to discuss Ethereum now that the Merge has happened. A high level scenarios is - We take a piece of Art, digitise it, then allow for it to be minted to either the Solana or Eth blockchain, and presented as part of a collection on a marketplace, such as OpenSea.

    €2353 (Avg Bid)
    €2353 Μέση Προσφορά
    93 προσφορές

    This is very fair and earnable, fast-growing crypt earn project recently. I want to have my own like this. Please check this url and post bid with your understand about its course. regards.

    €1250 (Avg Bid)
    €1250 Μέση Προσφορά
    26 προσφορές
    Scraping de blockchain Ethereum classic 2016 6 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    Estimados Necesito Obtener todos los txn Hash de Ethereum classic del año 2016, en formato txt (Documento de Texto). Necesito solo los TXN hash omitiendo toda otra información . Esta información debe ser obtenida directamente de la Blockchain de Etehreum Classic.

    €64 (Avg Bid)
    €64 Μέση Προσφορά
    5 προσφορές
    I need the application 6 μέρες left

    I need pc or mobile application. The project details will be given to software developers.

    €256 (Avg Bid)
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    18 προσφορές
    Build a Web3 dapp 6 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    I am looking developper to build/deploy a blockchain based WebApp. It is a digital registry on which people will prove ownership of property and transfert it from one owner to another. 3 or 4 pages in react/next.

    €630 (Avg Bid)
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    97 προσφορές
    Api Crypto Payments 6 μέρες left

    Hello I am looking for one or more developers to form a small team and carry out my project to create a cryptocurrency payment gateway that will work using the nodes of several blockchains (bitcoin rpc..) I am looking to create my own API to connect to my blockchains and not to use an already existing system Creation of a system similar to this one:

    €17 / hr (Avg Bid)
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    25 προσφορές
    NFT LENDING PLATFORM 6 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    we need a full integrated NFT based lending platform... Fully integrated with most of the networks. Along with seo

    €1010 (Avg Bid)
    €1010 Μέση Προσφορά
    10 προσφορές
    Fiat-crypto payment gateway/processor intergration 5 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    I have a Shopify store and would like a payment gateway made to get paid in crypto assets such as Bitcoin, Ethereum, even if the client pays in fiat currency.

    €1331 (Avg Bid)
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    49 προσφορές
    Fork ios Crypto Wallet and update front end resources 5 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    I want to fork a iOS crypto wallet and update some of the visual resources in the code (Logo, name, images, colours..) and later publish it into the App Store with my brading. I will share github repo to fork and app published into App Store in private message I have an apple developer account

    €322 (Avg Bid)
    €322 Μέση Προσφορά
    22 προσφορές

    Teach me how to transact to the transactions of solidity code functions to firebase cloud function, teach me how to mint and burn on cloud function up to solidity code functions and other stuff also like setting up firebase cloud function up to the solidity.

    €27 (Avg Bid)
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    3 προσφορές
    Meta verse development 5 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    This is meta verse development project. Now I have only brief idea, I would like to do this project in discussion basis. Share me demo or works if you have.

    €62382 (Avg Bid)
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    15 προσφορές
    smart contract development work 5 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    Summary: Automate smart contract when gas fees are low and scheduling running the smart contract in the future based on variables determined when running the smart contract the first time. Check for gas fees and optimize the running of the smart contract during each day. Potentially running the smart contract automatically many times a day. This would also run on other low fee evm chains. Check the gas fees. If gas fees low then check a smart contract for a number of days available to mint a token. Select the maximum number of days available to mint. The number of days available to mint in the smart contract increases over time based on several variables and the max days available can be requested from the smart contract. Run a function in that smart contract to mint tokens. Start a ...

    €62 / hr (Avg Bid)
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    61 προσφορές
    add function to ERC721 contract solidity 5 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    i created the contract of minting of ERC721 , and i want to add function

    €54 (Avg Bid)
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    27 προσφορές

    A cryptocurrency exchange mobile application where users can buy, exchange, send and receive cryptocurrencies. I am looking for someone that can make the entire app; Ui/Ux, front- and backend development etc.

    €247 (Avg Bid)
    €247 Μέση Προσφορά
    9 προσφορές
    Metaverses 5 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    Build a Metaverse coords in the top right, walking around, front page, wallet login in. blank space.

    €259 - €776
    Σφραγισμένο
    €259 - €776
    23 προσφορές

    I invested in a coin that is turning out to be very complicated to withdraw, I need someone with patience and skill to guide me through the proper withdrawal process (it has Anti pump and dump rules listed on their white papers) and get it into my bank account. This coin could be a scam, but I have been doing research for days, and I have 90% confidence that it is not, people are just not aware of the rules, and their transactions are therefore not processed correctly. So basically I need someone (USA freelancer preferred) who is a top level crypto sleuth, to get working with me right away to unravel this mystery. I’m not trying to put anymore money into my wallet, or invest in anymore crypto at all... I just want to see if there is a way to get this amount out. Please be trustworth...

    €4586 (Avg Bid)
    €4586 Μέση Προσφορά
    26 προσφορές
    Blockchain Payment Gateway for Website 5 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    Hello I need a freelancer who can use blockchain technology to receive payments in US Dollars using credit or debit card on our website, the payment then gets converted to crypto coins and are then transferred to our crypto wallet. Please also tell us about the transaction fee involved in the process. More details will be provided to the freelancers who apply. Thanks

    €2790 (Avg Bid)
    €2790 Μέση Προσφορά
    10 προσφορές

    Looking for someone to code me a bot. The bot must have these functions: Scan every coin on for certain metrics. The metrics are as follows: 1. Big increase in volume 2. Big percentage move 3. When a coin breaks a new all time high or low 4. Newly listed coins 5. Top gainers of the last 15 minutes, 1 hour, 4 hour, 1 day, 1 week. 6. Top losers of the hours 15 minutes, 1 hour, 4 hour, 1 day, 1 week. 7. Big liquidations When one of these happen, take a picture of the chart and post it to twitter with the cashtags of the coin.

    €1359 (Avg Bid)
    €1359 Μέση Προσφορά
    19 προσφορές

    Looking for someone to code me a bot. The bot must have these functions: Scan every coin on for certain metrics. The metrics are as follows: 1. Big increase in volume 2. Big percentage move 3. When a coin breaks a new all time high or low 4. Newly listed coins 5. Top gainers of the last 15 minutes, 1 hour, 4 hour, 1 day, 1 week. 6. Top losers of the hours 15 minutes, 1 hour, 4 hour, 1 day, 1 week. 7. Big liquidations When one of these happen, take a picture of the chart and post it to twitter with the cashtags of the coin.

    €1203 (Avg Bid)
    €1203 Μέση Προσφορά
    40 προσφορές

    We need CoinGecko fast track listing Need untracked listing Token still not launch Thats y we need untracked listing Note. Payment only we will make after untracked listing done..

    €6 / hr (Avg Bid)
    €6 / hr Μέση Προσφορά
    4 προσφορές
    Discord bot developer 4 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    We are looking for a discord bot developer who can create a bot with Twitter raid points. TERMS: 1. You should have developed 2+ bots that are currently used by communities 2. Need to make sure that bot is completely secured 3. have good knowledge of twitter API so we don't face API limit error

    €159 - €476
    Σφραγισμένο
    €159 - €476
    4 προσφορές
    Metaverse -- 2 4 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    Build a Metaverse coords in the top right, walking around, front page, wallet login in. blank space.

    €259 - €776
    Σφραγισμένο
    €259 - €776
    11 προσφορές

    This is very fair and earnable p2e game currently. I want to have my own like this. Please check this url and post bid with your understand about its course. regards

    €1058 (Avg Bid)
    €1058 Μέση Προσφορά
    11 προσφορές
    Pinksale fork 4 μέρες left

    We are looking for one developer with a vast knowledge and experience in blockchain technology to join our team. Initial work will include directly forking pinksale with a complete change in frontend design. Later work will include adding an NFT launchpad and other dapps

    €1300 (Avg Bid)
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    36 προσφορές
    Build a metaverse platform startup 4 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    We need someone that knows about Metaverse to make a character run along a land that we already built and to show the cords in the top corner 1: Build the character to move on the platform and create the cords in the right corner so we can see where the player is and allow people to enter the game. Basically it needs to function like this I will not send you my files. I need a price on how much you would allow us to walk around a blank metaverse with coord with an entry of frontend like the site above. If you cant show me that, then you are not the right person. You will first tell me how you will build this, which technologies you will build and how much it would cost. You do not need to design anything

    €643 (Avg Bid)
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    24 προσφορές
    Kocktailz 4 μέρες left

    I am looking for a developervfor an NFT game I am trying to develop. The game would consist of two players playing against one another on a browser. They both would be paired with an opponent who bet the same amount of SOL or DUST. The winner takes all. A percentage of the fee would go to the dev team and another percentage to a treasury vault to be distributed to the holders of the NFT collection I will create. The concept of paying the holders would be like Degen coin flip in a sort of way. The game involves having two players race to memorize and complete a certain task. That task that needs completing would be provided to them beforehand for a short amount of time. They memorize what needs to be done and complete the task in a certain amount of time that will be provided as well. The ...

    €1744 (Avg Bid)
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    34 προσφορές

    Please add "I am NFT expert" at the beginning of bid. I am going to learn about NFT learning course and i need experienced developer to teach me for two weeks. If you dont have high experience,dont bid. I will work with only high-experienced good developer. You just tell me which course will be ideal for me and how to teach me. When i appreciate your proposal,I will start contract. Thanks.

    €513 (Avg Bid)
    €513 Μέση Προσφορά
    12 προσφορές
    NFT Project marketing and social media management 4 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    We have an established development team that is looking to develop a utility centric NFT project. We need a team that will handle 1) Discord Creation and management 2) Community management and Discord moderation 3) Social media management

    €882 (Avg Bid)
    €882 Μέση Προσφορά
    15 προσφορές
    Fork Alpha EVM mobile wallet 4 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    Job Requirements: 1) Fork Alpha mobile wallet - • Listed Networks: Same as the current list plus Chain #1 (TBD) & Chain #2 (TBD) 2) Customize the logo and color theme. 3) Submit to Apple Store/Google Store Functionalities: Same as the current Alpha Wallet • •

    €2830 (Avg Bid)
    €2830 Μέση Προσφορά
    61 προσφορές
    Solidity (Web3) Task 3 μέρες left

    Hello, looking for some tasks Solidity, web3 connect Need smart contract asap

    €343 (Avg Bid)
    €343 Μέση Προσφορά
    27 προσφορές

    This is very fair and earnable p2e game currently. I want to have my own like this. Please check this url and post bid with your understand about its course. regards

    €2014 (Avg Bid)
    €2014 Μέση Προσφορά
    26 προσφορές

    This is very fair and earnable p2e game currently. I want to have my own like this. Please check this url and post bid with your understand about its course. regards

    €1278 (Avg Bid)
    €1278 Μέση Προσφορά
    36 προσφορές
    Crypto exchange whitelabel 3 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    We would like to get a P2P & order book-based exchange built. The exchange will support 7 tokens in the beginning. The fiat and digital assets will be held by a third party, and thus we would not need to have our own wallet system. We want it to be done as quickly as possible so whitelabel script seems like the way to go.

    €1558 (Avg Bid)
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    24 προσφορές
    CubeHead Punks -- 2 3 μέρες left

    Mp4 art project. Need a dev to upload new thumbnails to the metadata.

    €67 (Avg Bid)
    €67 Μέση Προσφορά
    4 προσφορές
    CubeHead Punks 3 μέρες left

    Low supply solana project (218) Already sold out We had devs but he is tied up with irl business. Art is pretty legit Looking to bring a committed dev on to our project before we launch our big collection

    €721 (Avg Bid)
    €721 Μέση Προσφορά
    17 προσφορές

    This is very fair and earnable p2e game currently. I want to have my own like this. Please check this url and post bid with your understand about its course. regards

    €1424 (Avg Bid)
    €1424 Μέση Προσφορά
    32 προσφορές
    Magic Eden NFT Discord Bots -- 2 3 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    Looking for someone to create some bots that display basic stats for NFTs on Magic Eden. We want to make it so other servers can use it IF they are holding our NFT.

    €198 (Avg Bid)
    €198 Μέση Προσφορά
    21 προσφορές

    I want to migrate my site from the bsc network to the polygon network and I have a smart contract that needs to add 3 FUNCTIONS the same already works on the bsc network. But I want to migrate to the polygon network and etereun and on the bsc again the contract with the 3 functions . I have the source code of the front end and the smart contract that goes on the site .ppr please give your offer if you really know how to work with blockhain and solidy. I only release some milestone after the contracts are updated and on the network it is tested and integrated into the site so I can test and see if it works

    €802 (Avg Bid)
    €802 Μέση Προσφορά
    49 προσφορές

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