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.

88647 értékelés alapján az ügyfelek 5-ből 4.83 csillagot adtak nekik: Blockchain Developers .
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    bitcoin, litecoin, dogecoin, Ethereum, tron, mnemonic finder I need a programmer who can write bitcoin, Monero ,litecoin, dogecoin, Ethereum, XRP, mnemonic recovery with missing words. it has to be purely gpu based (cuda) it has to support searching for public key or public address and also has to support loading address from address database in h160 format when there is no address available. it has to support reordering words when some words are available and the order of words are unknown it has to support multi-gpu it has to be fast it has to find up to 24 missing word (the missing words can be in any place in phrase). It has to support bip39 passphrase and when it is enabled it has to support loading and testing different passphrases from and assigned list of passphrases. knowledge of...

    €546 (Avg Bid)
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    14 árajánlat
    Fork Web and App from Github 6 nap left

    i need to fork a project from github and run on my own server and you have to do a monero blockchain fork too..

    €153 (Avg Bid)
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    7 árajánlat

    Hi The current script that I have is applied to the current security, and directions are shown on the chart (entry as a buy or sell). I tried to develop the script to apply the same code to another security, and at the same time merge the two results together and compare them; for example if the two security together have an entry sign, then the entry is shown. also if we can skip that and just do python automation i am open for suggestions. i need someone expert in pinescript and that can communicate with my timing GMT +3.

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    5 árajánlat

    We are building an secure online platform for buying, selling, transferring, and storing cryptocurrency. • Excellent Understanding of Blockchain Technology • Knowledge of smart contracts • To assist and service customers, providing a high standard of customer service • To assist people how to trade cryptocurrency

    €20 / hr (Avg Bid)
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    19 árajánlat

    Develop 3D Games and implement my existing NFTs as boosters to achieve the final goal DO NOT APPLY if you dont have prior experience

    €13 / hr (Avg Bid)
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    19 árajánlat

    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

    €168 (Avg Bid)
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    13 árajánlat

    I am looking for someone who can update me on the status of the cryptocurrency market and emerging market trends etc. i am familiar with previous trends. Bitconnect, ico, Defi, layer 2 solutions, crypto lending, NFT’s etc. i am aware that there are new emerging trends at the moment which are buried in the current Bear market. You will serve as my crypto investment consultant

    €20 (Avg Bid)
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    Blockchain Website & App Expert require for Payment Exchange and own Payment Gateway - Platform Require Like Stripe and PayPal + with multiple options for Accepting payments and Sending payouts globally. Website & App Design Responsive Website & App Development (Flutter or React Native) Modern Design, Extra Smooth Transitions & 3d Look Money Exchange. Wallet - Account, Transactions, Card, etc. Payment Gateway. (API, SDK & Plugins) Panels/Dashboard Full Website & App Control - Admin Panel & Staff Panel Website, App, Admin & APIs, SDK, Plugins Complete Documentation and 6 month complete Support -- Users can credit payments to their website account (from any source) -- Users can withdraw payments to any required accounts (banks, cards, etc.) -- The website ...

    €2596 (Avg Bid)
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    Estoy buscando arquitectos de Software/Blockchain con orientación en Microservicios basado en eventos, para desarrollar en lenguaje RUST mediante tecnología WASM / WASI. Se precisa desarrollar una blockchain realmente ambiciosa y revolucionaria, tanto privada como pública, es decir, federada. Buscamos forjar un ecosistema innovador de intercambio de información / datos y conocimiento, centrado en el usuario y que sea el motor que impulse la revolución de las; redes sociales decentralizadas, aplicaciones decentralizadas y la industria 4.0. Nuestro modelo de negocios es basado en servicios. Nuestra objetivo a corto plazo es el desarrollo de una DAICO (DAO + ICO) Para desarrollar y abordar nuestro sistema de financiación basado en riesgos, de la m...

    €47 / hr (Avg Bid)
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    2 árajánlat

    Creation of a website for integration with web wallets 3. (the most common, such as Metamask, etc.). Within the site a specific section for the Marketplace (opensea type) for the sale of NFTs. The NFTs in GBL file questions are 3D models for the metaverse. It will be important to implement the ERC1135 (multi token) protocol and the ERC4907 (Rentable) protocol in the NFTs that will be minted on the Polygon blockchain.

    €35 / hr (Avg Bid)
    €35 / hr licitátlag
    43 árajánlat

    Hello Everybody. I am a CTO of DXL Company. In our company, we are going to build exchange platform like Robinhood. So We have to publish first version to get invest. We already have a few investors and in the next January, we are going to show first version to investors. So if they are satisfied, we can collect almost $500,000 and we can go to next round. In the second round, we will found own coin and this coin price will be 10$. So in the first round, your task is the building website (very professional, and responsibility) and build the backend. So In term of first round, we will give you equity and your role is the developer & leader of team. If you want salary, we can support 1000$ per month with equity. But equity is very useful. Because our investors and clients are very powe...

    €2146 (Avg Bid)
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    60 árajánlat

    I would like to implement the metavers feature on my current site. please bid metaverse blockchain developer.

    €584 (Avg Bid)
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    42 árajánlat

    I would like to implement the metabuzz feature on my current site. please bid metaverse blockchain developer.

    €557 (Avg Bid)
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    36 árajánlat
    python blockchain expert 4 nap left

    hello i need an expert in python to help us in a project we are working on regarding blcokchain please let us know if you have enough experience in this more details will be shared later

    €2 - €8 / hr
    Kiemelt Rejtett Titkos
    €2 - €8 / hr
    9 árajánlat
    want crypto and trading expert 4 nap left

    want help to get crypto for investing

    €147 (Avg Bid)
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    17 árajánlat
    cryptocurrency price history by API 4 nap left

    Hi I want a code(node js or python) in which it get the price of some cryptocurrencies prices history(every hour) by API using coinmarketcap API or coingecko API or etc and output the result as csv file.

    €170 (Avg Bid)
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    56 árajánlat
    Betting site that bets with crypto 4 nap left

    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.

    €710 (Avg Bid)
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    69 árajánlat
    Blockchain EVM 4 nap left

    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

    €2732 (Avg Bid)
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    75 árajánlat
    Smart Contract Expert Required 3 nap left

    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.

    €203 (Avg Bid)
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    57 árajánlat
    calculator of crypto 3 nap left

    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

    €19 / hr (Avg Bid)
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    97 árajánlat
    Looking for NEAR blockchain expert 3 nap left

    I need someone who can help with NEAR blockchain projects.

    €218 (Avg Bid)
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    42 árajánlat

    I want a platform where the collection owners go and ask to customize the traits for their collections.

    €818 (Avg Bid)
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    43 árajánlat

    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

    €141 (Avg Bid)
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    41 árajánlat
    new web site 2 nap left

    I am going to build crypto web site.

    €328 (Avg Bid)
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    61 árajánlat

    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.

    €899 (Avg Bid)
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    21 árajánlat

    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.

    €19 / hr (Avg Bid)
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    30 árajánlat

    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.

    €3156 (Avg Bid)
    €3156 licitátlag
    9 árajánlat
    P2P Marketplace 2 nap left

    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. ...

    €887 (Avg Bid)
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    48 árajánlat

    *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 ...

    €2384 (Avg Bid)
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    54 árajánlat

    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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    15 árajánlat

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

    €33 / hr (Avg Bid)
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    66 árajánlat
    Cardano Dapp 2 nap left

    Details can be found in the attached file

    €738 (Avg Bid)
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    21 árajánlat

    Necesito un bot de sniper para pancakeswap, tengo el codigo fuente pero como no soy programador no logro avanzar, necesito completar el bot

    €159 (Avg Bid)
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    21 árajánlat
    Platform to customize NFTs 1 nap left

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

    €524 (Avg Bid)
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    62 árajánlat

    lets talk in private for all the details.

    €196 (Avg Bid)
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    29 árajánlat

    Need a very detailed white paper for Crypto coin and blockchain project with some pic's graphics etc

    €147 (Avg Bid)
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    20 árajánlat

    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.

    €2525 (Avg Bid)
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    31 árajánlat
    ERC721 Protocol for my Business 1 nap left

    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.

    €2377 (Avg Bid)
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    74 árajánlat

    Looking for a beacon chain project like Please contact me if anyone interested.

    €1761 (Avg Bid)
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    36 árajánlat

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

    €723 (Avg Bid)
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    39 árajánlat

    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.

    €37 / hr (Avg Bid)
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    29 árajánlat

    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.

    €1494 (Avg Bid)
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    52 árajánlat

    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.

    €2808 (Avg Bid)
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    107 árajánlat

    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

    €1940 (Avg Bid)
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    20 árajánlat
    ERC721 Protokoll 16 óra left

    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.

    €2396 (Avg Bid)
    €2396 licitátlag
    98 árajánlat
    Create a MEV/Sandwich bot on Ethereum 14 óra left

    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.

    €418 (Avg Bid)
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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.

    €344 (Avg Bid)
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    14 árajánlat

    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.

    €301 (Avg Bid)
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    68 árajánlat

    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.

    €30 / hr (Avg Bid)
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    29 árajánlat

    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

    €109 (Avg Bid)
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    13 árajánlat

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