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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    124 งานที่พบ, การเสนอราคา USD

    We are looking for a seasoned trading developer with good DeFi and smart contract experience. You must have a track record of: - Trading-related development projects (for cryptos, futures, stocks, ETFs, currencies, or options). - DeFi bot development projects. - Smart contract development projects. You must: - Believe in the merits of Test Driven Development, Unit Testing, and CI/CD. - Be fluent in git. - Be able to write and speak in English clearly and fluently. If all of the above describe you accurately, we would love to hear from you. (** no agencies, please **) What is in it for you? You will get a steady stream of exciting and challenging DeFi trading-related development projects to grow your range of skills and experience further.

    $12 / hr (Avg Bid)
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    1 คำเสนอราคา

    Im interested in investing in ethereum

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    SMART CONTACT DEVELOPER 6 วัน left

    I NEED A DEVELOPER WHO HAVE+ YEAR OF EXPERIENCE IN WRITING SMART CONTRACT. REQ. TO WRITE SMART CONTRACT FOR TOKEN BUY AND USDT DEPOSIT. NEED AN INDIVIDUAL DEVELOPER WHO WILL START ASAP AFTER FINAL DICUSSION.

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    mobile crypto game 6 วัน left
    ยืนยันแล้ว

    mobile crypto game on solana that will connect to nft wallet on blockchain

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    13 คำเสนอราคา
    SAFUU Fork -- 2 6 วัน left

    I want to fork safuu project . 250$

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    10 คำเสนอราคา

    Ib to get more details about the project.

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    Custom Cryptocurrency wallet and funds manager. 6 วัน left
    ยืนยันแล้ว

    I'm urgently looking for a fully customizable cryptocurrency wallet and funds manager written in python 3, that can safely and efficiently move funds between addresses and to and from all large CEX's and DEX's. I need this application to be customizable so that I can implement it as part of cryptocurrency trading bots that I am developing. The funds manager application should be compatible with BTC, USDT and XMR, and also allow for payments to and from legacy, bech32 and segwit btc addresses. I need to be able to send instructions to the funds manager through a command prompt as well by calling it in python applications. This project is fairly time-sensitive and I would like to have a working result within a few days if possible.

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    11 คำเสนอราคา
    Need Matlab and BlockChain Expert to make modelling 6 วัน left
    ยืนยันแล้ว

    i want to develop a modelling framework in matlab to determine trading price

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    We are looking for Blockchain Unity developer who has experience in unity 2D/3D games and Metaverse. Our position is in the loger

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    Scientific paper in computing and blockchain 6 วัน left
    ยืนยันแล้ว

    Scientific paper in computing and blockchain Required : Writing a research problem and questions Writing a step-by-step methodology Delivery within 2-3 hours (This is a very important condition )

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    Layer 1 Blockchain 13 ชั่วโมง left
    ยืนยันแล้ว

    We're looking for a Blockchain developer for a Layer 1 Crypto project. Besides the development work, we also need some advice about choosing suitable mechanics, e.g. PoS. We have our own DEV team, and the candidate needs to work with our team and go through the design, development, and test phases. The timeframe for this is about three months.

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    เร่งด่วน NDA
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    40 คำเสนอราคา
    Cryptocurrency bridge with metamask 6 วัน left
    ยืนยันแล้ว

    be able to add the information of the network in the database so that it works with metamask. 2. Being able to Add the Currency, Network Fee in currency value and Page Fee, Being able to enable which input and output networks will be available for that currency, the commission will only be for the output network. 3. Configure the Private Key and the Address of each network where the funds will arrive, with the Private Key it will be executed to send the funds to the outgoing network that the client requested. 4. The client connects with metamask to choose the input network with which to send the funds, if you give an example: 100 USDT from the BEP20 network, and choose the output network: ERC20, the commission for the output network ERC20 will be calculated According to how it was conf...

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    ADD SWAP FEATURE ON CRYPTOCURRENCY EXCHANGE SYSTEM 10 ชั่วโมง left
    ยืนยันแล้ว

    Hello there I have a web developed in PHP LARAVEL its a web for p2p exchange just like LocalBitcoins but it support multi crypto currency and it uses coin payment api now I need users to be able to swap currency from one crypto currency from one currency to another! may be from bitcoin to USDT or from USDT to ethe, thanks

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    เร่งด่วน
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    Looking for think script expert 6 วัน left
    ยืนยันแล้ว

    Looking for someone with experience in TOS scripting , someone who already wrote successfully few algorithms in thinkscript editor, for automated entry bracket with few conditions/ triggers for entry and exit trading positions

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    Hi I am a blockchain developer I have made a Stellar Remit App for my usa client but the client is lack of fund so he said I cannot pay for the wallet purchase now ..so that's why i am posting this so that any developer or a client who wants to buy this can purchase from me A stellar integrated account can be created It can be funded Transfer the amount to another wallet without any taxtes Checking the account balance Front end is fully developed I just need to work on the backend by developing blockchain by integrating of payment gateway after speaking with the correct person who will buy this i will complete the project and hand over the project I have attached the front end pic Please check and only real buyers bid in My Wallet will cost -3200$USD Happy bidding

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    Our team is looking for a Solana expert who can build NFT, Staking contracts using Rust perfectly. I tried to do test several guys about their experience and skills. But all guys are scammers and fake. They doesn't know well about the Solana contract development. If you are not expert in Solana, Do not apply please. Only expert will be hired and work long term with our team. Waiting for your proposals. Thanks.

    $27 / hr (Avg Bid)
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    am looking for professional developer that will build a cryptocurrency wallet app

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    Hello everyone, I am looking for a team of experts to create a website from scratch. First feature of this casino website will be similar to , users should be able to enter lotteries with crypto. So everything from user registration with basic kyc process, crypto deposits, random winner selection with provable fair system and everything else that is necessary needs to be done. Second feature of the site is a simple crypto dice game like We also need an admin interface with all types of statistics, user management, support ticket system I will request many more features as this projects grows and as we see what else is needed. I need someone who keeps working with us after the website is finsihed to manage content and keep developing this project. Further details will...

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    Solana NFT minting project 5 วัน left
    ยืนยันแล้ว

    I need to build NFT minting site on Solana. UI is simple. This need to be done in 1 or 2 days. Only expert apply to my project plz. If you do this project perfectly, I will award you more and more project. Thanks.

    $250 - $750
    ปิดผนึก
    $250 - $750
    29 คำเสนอราคา

    Create nfts and tokenise them on opensea testnet , using smart contracts and erc21 standards , its a very simple project, front end page needed

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    nft marketplace backend need 5 วัน left
    ยืนยันแล้ว

    nft marketplace backend need i alrady have frontend but no fucntion in there

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    Hello! We are hiring people to grind on Discord NFT servers to get the whitelist for us. Here are the points you must know about the role: 1️⃣ You enter a Discord NFT server we send you, and find the requirements needed to get an ETH wallet address whitelisted (if any questions, feel free to ask us). 2️⃣ Once you're in the server, you perform the requested tasks to get whitelisted (sometimes, this may involve using social media accounts). 3️⃣ Once whitelisted, you notify us to get compensated. What is usually required for getting whitelisted on NFT projects: ?? Interacting in the chat positively, and engaging with the community with genuine conversations. THAT'S IT! Tips that can help you to get whitelisted sooner: ?? On some Discord servers, you'll have more chance...

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    I need an Individual Flutter Developer for a Month at least 5 วัน left
    ยืนยันแล้ว

    I need a Well experienced Flutter Developer for a month who will deal with the client directly and report on daily basis on our CRM. Attend calls with the client and make sure the work is done on time. This will be a Cryptocurrency related project. So knowledge of Cryptocurrency is a Plus.

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    Swap dapp full exchange 5 วัน left
    ยืนยันแล้ว

    we want to create a decentralized exchange platform with staking system, please do not bids and i the message you tell me different price its need to be dapp full exchange, also are you going to use infrastructure or no

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    I am looking for a blockchain developer to create me Metaverse website. If you can do this kindly bid in with your past work. Thanks

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    13 คำเสนอราคา

    Basically I need a website where people can buy ticket for a raffle. Prize can be a whitelist / a NFT piece. It is just a bidding feature where you have the NFT display on the website and then you can bid for X amount of time. The last bidder will win the auction. I need to make Raffle / Auction system like this.

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    24 คำเสนอราคา
    NEAR nft project 5 วัน left
    ยืนยันแล้ว

    Deploy Near nft smart contract, whitelist token, landing page & minting site, and fix the metadata format.

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    I want to make a promotion of a Token which represents a real product. Owning the Token you have legal right on this product. One lot of products contains 10.000 units. There will be 20 lots. Maybe NFT release could be a good option. I need branding, website, promotion, blockchain.

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    Cryptocurrency Wallet 5 วัน left
    ยืนยันแล้ว

    We are building a cryptocurrency wallet using Dart Flutter that enables users receive Bitcoin,ETH and BNB.

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    17 คำเสนอราคา

    looking for developer who has already got good experience in software development on solana. Please contact only if you have existing experience. before starting discussion you need to provide some details on what RELEVANT work you have done - only then you will be CONSIDERED.

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    Hello, I'm looking for someone to create a chain fork and explorer, preferably Solana based. We need a chain that has API's set up for token creation, wallet creation, NFT minting, transactions etc BSC type/spec is ok for ETH fork - ideally EVM compatible Otherwise a 3rd Gen Chain fork - Solana, Avalanche

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    Blockchain development -- 2 5 วัน left
    ยืนยันแล้ว

    I need my own blockchain like Etherium. Read details in documents

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    Need to develop a crypto token 4 วัน left
    ยืนยันแล้ว

    Hello There, I want to develop a crypto token on bsc samart chain and want wallet of it to integrate in my mobile application Please apply only with the link of the tokens those you have developed

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    Rust Developer 4 วัน left
    ยืนยันแล้ว

    Looking for a experienced Rust Developer for a long-term project. Project Description: Developing of the casino project with a slot machine. We need a developer who will work on game platform and the RNG of the slot machine, so it fulfils the requirements for the gambling license. Project would last 1-3 months. Tasks: • Imput the deposit/withdrawal feature; • Maintenance of a database which tracks all bets being made; • Security Key Requirements: • Experience with rust; • Experience with virtual machines used by modern blockchains: webassembly, evm, cosmwasm; • Ability to analyze and optimize platform performance; • Experience in conducting tests in a distributed environment; • Experience auditing the security of third-party and internal solut...

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    Some possible ways to hire blockchain and crypto exchange developers. The ways are Hire a dedicated team, Engineers on Hourly and Monthly basis based on your Project Development Requirements. CRYPTOCURRENCY DEVELOPMENT CRYPTOCURRENCY EXCHANGE SCRIPT CRYPTOCURRENCY EXCHANGE SOFTWARE DEVELOPMENT WHITE LABEL CRYPTO EXCHANGE SOFTWARE CRYPTOCURRENCY WALLET DEVELOPMENT DECENTRALIZED EXCHANGE SOFTWARE P2P CRYPTOCURRENCY EXCHANGE SOFTWARE HYBRID CRYPTOCURRENCY EXCHANGE SOFTWARE CRYPTOCURRENCY MLM SOFTWARE CRYPTOCURRENCY HYIP SOFTWARE CRYPTOCURRENCY DEVELOPMENT STABLECOIN DEVELOPMENT ALTCOIN CREATION SERVICES

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    Token Listing 4 วัน left
    ยืนยันแล้ว

    I need to list my token on CMC. CG , Kucoin ...... etc

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    Looking for expertise around crypto, especially for launching NFTs. We are finalizing the design of an NFT now and are looking to launch it in 1-2 months. You should have extensive experience launching NFTs and contract development in Solidity and blockchain security. Please respond with example projects/contracts that you've launched.

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    40 คำเสนอราคา

    Start immediately! Need an experienced dev, who can fix, eg see why a Solidity Airdrop Code is not working on the Binance Smart Chain. The best candidate will be awarded 50$, this should be an easy 2 hours job if you know your stuff, people who ask for unrealistic high prices after bidding will be reported to freelancer, so bid accurately

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    Hi I m looking for a blockchain developer who have strong experiences in smart contract. I m adding chainlink VRF function on my smart contract. If you have experiences in smart contract and chainlink VRF function in past then please proposal I will hire soon if you are the correct person for my project thanks

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    Looking for smart contract and web3, web2 auditor 4 วัน left
    ยืนยันแล้ว

    I need auditor who work with our lots of projects

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    Smart Contrat 4 วัน left
    ยืนยันแล้ว

    Hello, is it possible to make such smart contracts as this one

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    Defi stop loss smart contract yield farming 4 วัน left
    ยืนยันแล้ว

    Hi. I need a blockhain dev that can create a stop loss smart contract for lp yield farming. The bot / smart contract has to monitor the value of the lp (like yieldwatch or apeboard) every minute (as often as possible) and liquidate positions depending on the % loss factor of the position. Turn lp back to stables. On every blockhain like yieldshield Thanks

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    Blockchain - Website 4 วัน left
    ยืนยันแล้ว

    Need a good developer for website.

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    Blockchain NFT Website 4 วัน left
    ยืนยันแล้ว

    I already have a Website. However we are looking to launch our NFT and would like to mint the NFT on our website and then it will relay to OpenSea as it mints onto ETH blockchain. We need (high level): -Someone with experience of launching an NFT on ETH and Opensea, and a good understanding of Web 3.0 and Smart Contract Development. - Mint link with a page for the initial mint, connect to wallet (metamask) - Confirm transaction Functions for NFT Holders: -A login for NFT holders (using metamask and other popular wallets) - Show a list of their NFT's that are part of the collection Good english speaker required and you will need to be able to have video calls with me, you will also be the official developer for the project.

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    Wanted legal Advisor for CryptoCurrency Related Issues in Tamilnadu. Should have good solving capabilities.

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    Blockchain engineer 4 วัน left
    ยืนยันแล้ว

    Hello We are looking for an individual Blockchain developer. Please don't bid if you don't have portfolios. Required skills and experience - Solidity, , React, Node, CSS, HTML, JavaScript - Database architecture - Token development, Smart contract development, NFT marketplace or mint site development, DeFi Dapp - Teamwork - Clear communication (Zoom call) - Attention to detail Bonus skills and experience - Python, Rust, C#, Vue, Angluar, PHP - Design - NFT game development(3D framework) We hope you send us your past projects if you are a senior developer. If you don't have you can save your proposal. And we will read all proposals from the start to the end carefully. So you can write as well as you can without hurrying. Plus, we have our development team and will check...

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    Front Running system for Uniswap 4 วัน left
    ยืนยันแล้ว

    Looking someone to create this

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    Hi, I am looking for an MEAN Stack developer who has experience in Web3 and Smart Contract Integration. We will prefer someone who can take up work quickly and start right away. More details in chat

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    Blockchain project ($1000) 4 วัน left
    ยืนยันแล้ว

    Need a reliable developer for this project.

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    59 คำเสนอราคา

    Busco desarrollador SOLIDITY (erc-721) para que asesore el desarrollo de un smart-contract de un proyecto NFT. Requerimos asesoria para la creación de un proceso en el struct para crear un array que nos permita registrar las referencias de pago, que tiene insidencia en transacciones y transferencia de fondos de la compra.

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    15 คำเสนอราคา

    บทความชุมชน Blockchain ชั้นนำ