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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    60 znalezione projekty, cennik w USD

    Szukamy osób do zespołu programistów na stałe zlecenie ok 12 miesięcy, na czas budowy platformy crowdfundingowej. Osoby które zgrają się z zespołem i będą lojalne wobec firmy otrzymają propozycję stałej pracy na obopólnie ustalonych dogodnych warunkach. Osoby posiadające doświadczenie z zakresu: - AI - Blockchain - Front End Dev - Back End Dev - UI/UX/Projektowanie graficzne - Budowa kompleksowa platform społecznościowych - Zarządzanie zespołem developerskim - iOS/ Android Apps Budujemy obecnie zespół, prowadzimy rozmowy indywidualne. Szukamy osób które zaangażują się w projekt platformy od a-z i będą jej częścią. Po zrealizowaniu platformy dla osób chcących zostać w zespole na stałe przewidujemy częściowe udziały. Wynagrodzenia za...

    $25 / hr (Avg Bid)
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    Betting site that bets with crypto 6 dni left
    ZWERYFIKOWANY

    I need a betting site that allows me to enter betting odds and other people to bet on them using our crypto. Must be able to use all skills in the requirements. If you can not do this, do not apply. If you dont have anything to show that you did this before, do not apply. If you ask me my budget instead of bidding, do not apply.

    $512 (Avg Bid)
    $512 Średnia Oferta:
    9 składanie ofert
    Blockchain EVM 6 dni left
    ZWERYFIKOWANY

    Create an EVM blockchain with an infinity of words that are generated by the blockchain and not known words as currently to counter quantum computers

    $2508 (Avg Bid)
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    31 składanie ofert

    Need smart contract developer BSc for presale contraction n testing. Developer from India only

    $3 / hr (Avg Bid)
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    4 składanie ofert
    Smart Contract Expert Required 6 dni left
    ZWERYFIKOWANY

    I need a SMART CONTRACT EXPERT who can check our existing smart contract and sort out the slippage issues that is resulting in our bot being attacked and sandwiched by other bots. It's a small smart contract with a basic buy and sell function. I am looking for the right person with the right experience who can explain to us why this happening and how YOU can resolve this issue.

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    i need a programmer to who can edit a cuda program i need three more functions added to my cuda source knowledge of cuda c c++ is mandatory

    $178 (Avg Bid)
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    19 składanie ofert
    calculator of crypto 6 dni left
    ZWERYFIKOWANY

    we want to implement a calculator for buy and sell cryptocurrency just like please check this website carefully we have api to get crypto price and should work with our fees in our website fiat to crypto and crypto to fiat calculator

    $20 / hr (Avg Bid)
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    Looking for NEAR blockchain expert 5 dni left
    ZWERYFIKOWANY

    I need someone who can help with NEAR blockchain projects.

    $202 (Avg Bid)
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    Hello, Thank you for reviewing this post. I am looking to have decentralized application built for a cryptocurrency sportsbook and casino. I am looking for a platform exactly like the following: - - - Let me know if you are able to build this for me. I am looking forward to connecting with everyone on here. Regards,

    $919 (Avg Bid)
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    I want a platform where the collection owners go and ask to customize the traits for their collections.

    $774 (Avg Bid)
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    37 składanie ofert
    C++ Json Indexer 5 dni left
    ZWERYFIKOWANY

    I have a json file and I want to create indexer for the data which will be queried using C++ or Rust language. The task is to write simple C++ code for backend to index json data and query indexes.

    $369 (Avg Bid)
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    I need who can develop a login to wix website through metamask Please only professional that has handle something like this needed for this please

    $152 (Avg Bid)
    $152 Średnia Oferta:
    42 składanie ofert
    new web site 5 dni left
    ZWERYFIKOWANY

    I am going to build crypto web site.

    $186 (Avg Bid)
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    Creation of new token Staking reward on staked NFT Custom Name, Symbol, Supply If you have done similar project, please include a reference. Feel free to bid and let me know if you have questions.

    $960 (Avg Bid)
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    Experienced Person required to co-ordinate a token launch campaign The campaign will involve a Bounty Campaign, carrying out Bounty Assignments. The job will also involve being involved in meetings on the creation of forms for the campaign. The job also involves co-ordination of Marketing aspects of the campaign including an Affiliate Programme. The job also involves the co-ordination of Social Media aspects of the campaign. After your bid, please open a chat and provide details of your experience in the above areas. Good bonus/commission also paid. You have to be able to start immediately.

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    You have to create a mev bot, which buy and sell in sam block on ethereum and binance. Only apply if you have experience with such type of bots.

    $3326 (Avg Bid)
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    P2P Marketplace 5 dni left
    ZWERYFIKOWANY

    There was an open source project the team have stopped working on i would like to Fork what they had and restart the project. it was usable up until January of this year 2022. The Github for the project has 48 repositories which i would imagine come together to make the platform work. This code will need to be checked, tested and deployed. At this time some of the ui will need to be simplified creating a better ux than previously also adding a smart contract for payment and a staking feature for defi. Once the platform is successfully deployed, rebranding of the pages will be required. Please see the link below. If you do not understand what is required please with the utmost respect do not waste your time and my time by bidding please only bid if you understand the job required. ...

    $930 (Avg Bid)
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    Need smart contract developer BSc for presale contraction n testing. Developer from India only

    $6 / hr (Avg Bid)
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    10 składanie ofert

    1: Build a parcel place with 44,000 spots 52x52 squares 2: as you walk over the squares the parcel will light up 3: add a mini map that shows the coords for the work. 4: Make charters able to see each other online 5: Import building ability through 3rd party software after purchase of land 5: Bonus for adding voice 6: Bonus for adding building in the middle that is not buyable Build a parcel place with 44,000 spots On a flat board with a mini map and a person able to run around it and see each square for sale. The map can be blank like a net and the people that run around can be imported from ready player me And the land connects to Metamask and takes BNB and ETH. Must be able to see each other online. If you can do this we will spend a lot more on the actual building out ...

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    *This proposal is only open to those who have forked and customized Sushiswap in the past. As a condition for selecting a developer, we will ask you to submit your portfolio of a Dex/Defi project that you have developed in the past. And then reviewing it we will decide on the developer of this job. We would like to create the following system. List of main features 1. Cross-chain Swap (like "xSwap" in Sushiswap 2.0) Minimum supported chains: Ethereum, Binance Smart Chain, Polygon (more is even better) 2. Multi-chain liquidity mining pool (like "Earn" in Sushiswap 2.0) Minimum supported chains: Ethereum, Binance Smart Chain, Polygon (more is even better) 3. Staking with own native token (normal staking or like Sushiswap staking [Sushi - xSushi]) Our native ...

    $2391 (Avg Bid)
    Wyróżniony
    $2391 Średnia Oferta:
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    i need a consultation and just a base design in the beginning to understand if the solution has potential or not. it is not about developing the software

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    The scope of work is to develop and deliver a decentralized exchange platform in ETH and BSC networks

    $35 / hr (Avg Bid)
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    Cardano Dapp 5 dni left
    ZWERYFIKOWANY

    Details can be found in the attached file

    $773 (Avg Bid)
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    Necesito un bot de sniper para pancakeswap, tengo el codigo fuente pero como no soy programador no logro avanzar, necesito completar el bot

    $168 (Avg Bid)
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    Platform to customize NFTs 4 dni left
    ZWERYFIKOWANY

    I want to be able to modify existing NFT collection by petition of the owners of that collections.

    $539 (Avg Bid)
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    lets talk in private for all the details.

    $160 (Avg Bid)
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    Need a very detailed white paper for Crypto coin and blockchain project with some pic's graphics etc

    $155 (Avg Bid)
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    I'm interested in discussing my business plan which includes a complete 1inch copy (with integrated self-custody wallet). I'd also like to include perpetuals / futures (similar to dydx) either now or in the future.

    $2661 (Avg Bid)
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    ERC721 Protocol for my Business 4 dni left
    ZWERYFIKOWANY

    We are looking for a ERC721 Developer for our new Startup. We are looking for someone who is able to setup a whole NFT launch and Minting process.

    $2500 (Avg Bid)
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    Looking for a beacon chain project like Please contact me if anyone interested.

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    Hireing blockchain, frontend, backend developers who can relocate to philiphins Free board and lodging, free meals

    $762 (Avg Bid)
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    We’re looking for a social media community manager for our NFT web 3.0 metaverse project. That person should have extensive experience with how to market our NFT project through Twitter and get potential clients into our discord group.

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    Blockchain and NFT site 3 dni left
    ZWERYFIKOWANY

    I’m looking to develop a private c# blockchain with a react frontend that will allow users to login, and mint NFTs on the chain, transfer ownership of NFTs on the chain to other users and query ownership of NFT’s on the chain.

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    Hey guys, I want you to build an ethereum type blockchain - private chain for me based on proof of work. There should be 3 running nodes all running. I must be able to connect to my chain from windows pc and launch smart contracts.

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    Build me an Simple Crypto Trading app/website I already have an existence website and app sources which I need to rebrand and rebuilt... contact me so I can share my requirement in detail

    $2054 (Avg Bid)
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    ERC721 Protokoll 3 dni left
    ZWERYFIKOWANY

    We are looking for a ERC721 Developer for our new Startup. We are looking for someone who is able to setup a whole NFT launch and Minting process.

    $2512 (Avg Bid)
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    93 składanie ofert

    You have to create a sandwich/mev bot which works on ethereum and bsc. You must have prior knowledge of how it works and you must have created that in past.

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    You need to create a smart contract which do buy and sell in same block using sandwich trading. You must have done that successfully in past.

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    I want you to develop a Nodejs script to detect newly deployed tokens on Ethereum and Binance and store the following properties on a MongoDB. ? ETHER: 0x39834c54d329567363D5D474fF8C97c21e2a351d ? Liquid: 37% in Uniswap. ? Holders: 64 3.0% | 2.8% | 2.4% | 2.0% | 2.0% | 1.9% | ? MCap: $ 8,775 (WETH: $1186.61) ? Liquidity: 2.72 WETH ? LP Lock: 99.00% locked for 27 days on Unicrypt ? Fee: Buy: 4.00% | Sell: 4.00% ? Max Buy: 176370.182711258(0.15 WETH) Above is an example.

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    Please read carefully before contacting us. We are Building a Blockchain ecosystem on Hyperleger Besu and our environment is AWS and Kubernetes. We need someone expert in Kubernetes and use to work with AWS on hight level. experience more than 6 years and knows about Blockchain + Hyperleger More details: issue-1 Developement Kubernetes Clusters nodes are automatically getting crashed and restarting. hence all the pods in all the namespaces are restarted. alot of them do not pvc attached to them issue-2 due to not being attached PVCs, some pods are losing their data. including the blockchain besu nodes hence whenever they are restarted we are losing blockchain data. NOTE: the expert on DevOps should find a solution of these two issues.

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    Hello, We are looking for Companies tieups for web Development and blockchain projects. We wont pay advance. But Work on post paid milestones only. You can work on your local server and once approved and tested by us, we release payment on freelancer. Pls. we want hardworking companies and freelancer only. We require delivery of work on time and with accuracy Thanks

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    IOTA SMART CONTRACT PROJECT 3 dni left
    ZWERYFIKOWANY

    WE WANT TO DEVELOP OUR TOKEN WITH IOTA BLOCKCHAIN , WE NEED TO HAVE SMART CONTRACT WE NEED LINK TO OUR WEBSITE WALLET HAVE TO WORK WITH DEVINET

    $2125 (Avg Bid)
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    10 składanie ofert

    Need smart contract developer BSc for presale contraction n testing. Developer from India only

    $8 / hr (Avg Bid)
    $8 / hr Średnia Oferta:
    10 składanie ofert
    Ethereum node sync issues 2 dni left
    ZWERYFIKOWANY

    Ethereum full node syncing slowly and litenode doesnt get synced. Need someone who can fix the issue quickly. Should have hands on experience on Geth Nodes and handlh Beacon ETH chain.

    $11 / hr (Avg Bid)
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    Need a smart contract developer for smart contraction interaction ico contract with the front end. need from India only.

    $5 / hr (Avg Bid)
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    12 składanie ofert
    DApp Development 2 dni left
    ZWERYFIKOWANY

    We are looking for an Experienced Blockchain Developers to Build us a DApp like this: This DApp has too many features. We only want the Following features. Convert, Pools, Lottery, Play and Poker. Please visit the Website ( ) so you have an idea exactly what we are looking for. Send your interest if you are Experienced, Have substantial reviews and also have worked on something similar with reference links.

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    Web3 Private Blockchain Development 2 dni left
    ZWERYFIKOWANY

    Hi guys Looking for a web3 blockchain developer that can create and deploy private blockchain and dapps project. PLEASE NOTE THIS IS NOT DEVELOPMENT OF CRYPTOCURRENCY. Only bid if you have done web3 private blockchain before. Example project: NO AGENCY NO COMPANY SCAMMERS PLEASE STAY AWAY YOUR TICKS WONT WORK ON ME

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    Will discuss upon discussion, WP is ready and need to start the project ASAP.

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    Dynamic Flashloans Execution 1 dnia left
    ZWERYFIKOWANY

    * First Milestone Given an atomic transaction ID, we need an API call that returns whether it is profitable to copy/imitate that transaction in the current time. is one example of these transactions. The guy who did this transaction started with 0.027497 BNB, swapped them to Kinka token via Pancakeswap, then sold them on Apeswap and ended up with 0.029699 BNB. The profit from this transaction is around 0.002 BNB. We will be probing transactions on BSC to avoid high gas fees. I will ask you to deploy this API somewhere to be able to call it without knowing the code yet. You'll give us at least two days where we will test your API against multiple transactions. If the similar transaction deems to be not profitable your code will test with a smaller amount and return the profitable ...

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    Tableau/PowerBI + Blockchain 1 dnia left
    ZWERYFIKOWANY

    Hi, I am looking for developer with experience of Tableau or PowerBI implementation. Xero, Blockchain experience would be a plus. More details through chat.

    $480 (Avg Bid)
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    21 składanie ofert

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