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    6,504 ethereum công việc được tìm thấy, giá theo USD

    1. Có kinh nghiệm trên 1 năm trong lĩnh vực phát triển hợp đồng thông minh (Smart Contract). 2. Có kinh nghiệm trong việc viết code bằng ngôn ngữ lập trình Sodility. 3. Có hiểu biết và kinh nghiệm trong phương thức lập trình TDD (Test-Driven Development) 4. Có hiểu biết rộng về công nghệ Blockchain, đặc biệt là Ethereum. 5. Quen thuộc với những lỗ hổng thông thường trong Hợp đồng thông minh (Smart Contract) ----------------------------- Yêu cầu: 1. Thiết kế, xây dựng ứng dụng phi tập trung bằng ngôn ngữ lập trình Solidity 2. Viết các tư liệu hướng dẫn liên quan và hỗ trợ kĩ thuật cho team. 3. Kiểm soát chất lượng và c&aac...

    $500 (Avg Bid)
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    Cần list 1 đồng token lên website mua bán đã có sẵn Đồng Erc-20 token Website Có ví riêng cho mỗi khách hàng đăng kí tài khoản Người dùng có thể tạo quảng cáo tương tự như Bitcoin và Ethereum hiện tại Khi có giao dịch mua bán, token sẽ được giữ bởi hệ thống escrow, sau khi đã xác nhận sẽ được gửi cho người mua

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    I am gonna deploy my project with using shell code( fiile). I hope if you have already experiences with deployment using shell code, please bid on this project. And we can discuss more project details. "#!/usr/bin/env bash # Exit script as soon as a command fails. set -o errexit mustache config/$CONFIG > # Run codegen and build graph codegen graph build if [[ "$NO_DEPLOY" = true ]]; then rm exit 0 fi # Select IPFS and The Graph nodes if [ "$GRAPH" == "local" ] then IPFS_NODE="http://localhost:5001" GRAPH_NODE="" elif [ "$GRAPH" == "goerli" ] then IPFS_NODE="" GRAPH_NODE="" elif [ "$GRAPH" == "rinkeby" ] then IPFS_NODE="" GRAPH_NODE="" elif [ &quo...

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    - CryptoCurrency or blcokchain marketing huge plug - Fast learner, have skills in search blockchain groups - Familiar with Ethereum and BSC - Huge bonus had experience working with Solana, Polkadot, Aptos - No special skills are required

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    Directive Social Manager in Blockchain. 6 ngày left
    ĐÃ XÁC THỰC

    - CryptoCurrency or blcokchain marketing huge plug - Fast learner, have skills in search blockchain groups - Familiar with Ethereum and BSC - Huge bonus had experience working with Solana, Polkadot, Aptos - No special skills are required

    $1075 (Avg Bid)
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    Join and help create a modern cryptocurrency w...cryptocurrency website. Tech: + Typescript + TailwindCSS MERN stack Goal: Build a cryptocurrency gambling website from PSD designs and requirements provided and discussed (google docs). Must be fully secure and fully tested with no bugs or issues. Experience Needed: - Send an example of your previous experience with Full Nodes ("Bitcoin Core" for Bitcoin and "Geth" or others for Ethereum) -Send an example of your previous experience making Desktop/Mobile responsive websites -Send an example of your previous experience accuractly converting a PSD design to a fully responsive website using MERN stack (or similar stacks) Timeline: ~45 days Milestone: Single milestone (No multiple ste...

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    I am looking for someone to create a bot for me that monitors Ethereum (ERC20) Addresses. It will work like the following: I input the address to monitor, bot refreshes every 1 minute or every second. If that address makes a trade on uniswap / sushiswap or some other exchange i want my bot to do the same exact trade as the address it's been monitoring. Bot must work with Metamask and have multiple instances for many wallets to monitor. I would like it also to be able to set a copy trade limit.I could set monitoring to adjust volume from Master account to slave account (adjust balance, money etc..). Must be open source. The bot could works on ETH,BNB,and other chains thank you

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    Most of work will be in Node, mongodb, typescript, express, MySQL, Solidity, ethereum, third-party APIs. Other technology will be plus like Laravel (php), Python, cloud server. Majority of projects will be related to blockchain so lot of learning opportunities there too. Please mention monthly salary in INR you looking for? We can have interview for suitable candidates.

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    Hello I need a website developer who has more than 5+ years of personal and industrial experience. The site needs multiple technologies including Javascript, Python, Django, Node.js, PHP, Laravel, Solidity, Ethereum, AWS, and more. Thank you Regards.

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    We are a software development company based out of India . We have more that 5+ years of personal and industrial experience with working with clients across various industries . Our resources are highly skilled with working with multiple technologies including Java ,React Native,Ionic, Javascript , Python , Django , Node.js, PHP, Laravel , Solidity , Ethereum , React.js, Swift, Objective C, Kotlin , AWS and more. We are looking to connect with a motivated and driven individuals who can work with us on a revenue sharing or commission model . Our team of expert developers would be developing and executing your client's requirements and you can keep earning on every project. We provide services like - WEBSITE DEVELOPMENT ; MOBILE APP DEVELOPMENT ; CYBERSECURITY ; GAME DEVELOPM...

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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.

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    Bot sorare (Max budget 100€) Đã kết thúc left

    Sorare is a Fantasy Football game released in 2019 where you collect digital cards (NFT) bearing the image of football players.- The game is based on Ethereum technology in which its own marketplace is integrated. The API is in Opensource made available by GraphQL. Objectives: - Create an Autobuyer bot which, based on a given average price, would be able to buy a card as soon as it is put on the market. Provided that it is X% lower than its average price, it is a question here of spotting a price error and buying it as quickly as possible, before the other bots in service on the platform. In this platform there is 4 differents kind of cards so I would like to put the bot wherever and choose in which one I want Also there are differents leagues I would like to choose in which

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    Hi Ahmed Atef Gomma M., do you have an experience with ethereum and BQ?

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    Hi Mohammad T., do you have an experience with ethereum and BQ?

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    Big Query Ethereum Decoding Đã kết thúc left

    Execute project taking Ethereum data in GCP Big Query and translating it to a set of tables. Transformations include adding labels, and decoding with ABI files. Majority of code in proof-of-concept form. Results: Transformed code in BQ tables.

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    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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    Ethereum node sync issues Đã kết thúc left

    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.

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    I have a CSV file with a list of Ethereum addresses, need a script that will add a column in that CSV with the balance value from a website YOU NEED TO HAVE EXPERIENCE DEALING WITH LARGE DATASETS WITH MORE THAN 10,000 ENTRIES

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    I am looking for a senior blockchain developer with rich experience in ethereum and binance blockchain network. Should full stack in frontend, smart contract and even web3 integration. Regards.

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    ...optimiert werden. Erfahrungen mit diesem Tool sind von Vorteil, notfalls lernt man es aber auch schnell kennen. Dein fertiger Artikel hat also einen guten Surfer SEO Score, ist fehlerfrei und ansprechend geschrieben sowie vollständig formatiert (Absätze, Fettungen, etc.). Das Volumen ist langfristig für ca. einen Text pro Woche geplant. Die Wortzahl wird stark von dem jeweiligen Thema abhängen. Bei Ethereum waren es 4.000 Wörter, für den Bitcoin sind vielleicht auch 6.000 Wörter möglich, bei unbekannteren Währungen werden es vielleicht nur 2.000 Wörter sein. Im Idealfall finde ich hier eine Autorin oder einen Autor, der dieses Volumen bis weit ins Jahr 2023 liefern kann. Wenn das für dich zu viel ist, kann ich auch zwei Per...

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    I have a CSV file with a list of addresses, need a script that will add a column in that CSV with the balance value

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    BLock Chain Coding Đã kết thúc left

    Requirement is to write Solidity code to exploit a vulnerable smart contract, using the Goerli Testnet in Ethereum. This is not real Crypto coin. More details in chat

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    Looking for 1...proofs-of-concept (POCs) in Solidity on Ethereum. * Hands-on development expertise in the following areas: Solidity, JavaScript, Golang, and JSON. * A strong interest in blockchain technology and like learning and developing new and inventive methods to leverage smart contracts on the Ethereum network. Responsibilities: * Creating novel, reusable, tested, and efficient code to develop and support blockchain systems. * Using Solidity, create proprietary blockchain technology (services, libraries, and algorithms). * Working with a product manager, designer, and engineers to plan and collaborate on features. * Create and deploy high-security technologies (Services, libraries, Algorithms). * Conducting blockchain research, design, development, and testing on the ...

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    ...operating on blockchain, we would like to improve our data management and implement management reporting within the BI tool. The main objectives of this project would be: 1) Creation/implementation of cloud database (Snowflake or similar); 2) Connecting our accounting tool (Xero) into the cloud database/BI tool for Budget/Actuals reporting; 3) Connecting company funds held on blockchain networks (Ethereum, Polygon, Fantom) and centralized crypto exchanges (f.e. Bittrex, Kraken, HitBTC via their APIs) into the cloud database/BI tool; 4) Core data design/manipulation for BI reporting; and 5) Management reporting design (dashboards) in Tableau or Power BI. We want to kick off this project as soon as possible, and therefore, we would appreciate it if you could please share ...

    $291 (Avg Bid)
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    12 lượt đặt giá

    ...operating on blockchain, we would like to improve our data management and implement management reporting within BI tool. The main objectives of this project would be: 1) Creation/implementation of cloud database (Snowflake or similar); 2) Connecting our accounting tool (Xero) into the cloud database/BI tool for Budget/Actuals reporting; 3) Connecting company funds held on blockchain networks (Ethereum, Polygon, Fantom) and centralised crypto exchanges (f.e. Bittrex, Kraken, HitBTC via their APIs) into the cloud database/BI tool; 4) Core data design/manipulation for BI reporting; and 5) Management reporting design (dashboards) in Tableau or PowerBI. We want to kick off this project as soon as possible, and therefore, we would appreciate it if you could please share your experienc...

    $25 - $50 / hr
    Nổi bật Gấp Niêm phong NDA
    $25 - $50 / hr
    39 lượt đặt giá
    Blockchain supply chain Đã kết thúc left

    Pharma supply chain optimization with Ethereum Virtual Machine Nodejs for backend, Solidity for smart contract and Reactjs for frontend

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    1) Dev will record every step of the way and send the recordings in one or multiple google drive files (or other host) 2) Dev will also provide Step by step documentation 3) Dev will not assume any step. All steps must be recorded and documented. 4) Blockchain will have 3 nodes connected to them. All nodes will have accounts and miners. Deployment of the Chain will be on Linux system. 5) Dev will show step by step how to connect the blockchain to Metamask. Blockchain that’s running on a linux server to be connected to metamask on Windows computer. 6) Dev will connect the blockchain to a free account of to and demonstrate block explorer 7) Dev will launch 2 Sample Smart Contracts on the private blockchain using 8) Recommended hardware / vps to run a node? 9) Security recommendat...

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    Dear freelancer, I need a full stake block chain developer, to fully develop and optimize the Ethereum blockchain to provide facilities for covering our new idea on the blockchain. details will be shared in chat.

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    NDA
    $29 / hr Giá đặt trung bình
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    I want you to teach me how to create a private ethereum blockchain on my computer or an external server. Criteria; 1) fully functional blockchain 2) running at least 2 nodes to maintain the blockchain 3) demonstrate transaction

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    Hello freelancers, We're looking for a skilled team & individual who can: 1. Complete code refactoring in Solidity, Make a few adjustments to an Ethereum smart contract using Solidity. 2. Integrate (wallet) with 2 WordPress front end (2 sites). 3. Add new special accounts & create a few more conditions. Deadline - we're ready to start as soon as possible once we find the right candidate and the right quote. Skills required: Blockchain, Solidity, ETH, WordPress, React. We have all the information, guidelines & instructions in regards to the project scope available, place a bid if you're interested. More information will be provided via chat. Thanks,

    $3319 (Avg Bid)
    Nổi bật
    $3319 Giá đặt trung bình
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    I have a functioning bot written in nodejs. It automatically detects new tokens on ethereum blockchain and buys them. It can also sell them based on criteria. Your task is to; 1) "right now if the dev removes liquidity of any amount the bot will sell my tokens. add a variable Minimum_liquidity_remove_percentage. if bot detects that dev has removed x% of current liquidity in the token, then and sell, else no action (print on screen "tiny liquidity was removed").

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    ...based chain - iE Ethereum, Binance Smart Chain, Avalanche, Tron, etc. Also you should include as many exchanges as possible. Some DEXes are copy pastes of Uniswap - all of them should be integrated. Exchanges to be integrated: Ethereum: Uniswap, Sushiswap, Curve, Balancer, Dodo Binance Smart Chain: Biswap, Dodo, Pancakeswap Polygon: Quickswap Avalanche: Pangolin, TraderJoe, OopenOcean Optimsm: Perpetual Protocol Harmony: Defi Kingdoms, Defira there should be 3 methods: 1) place_order(chain, dex, market, quantity, buysell, ...) 2) add_liquidity(chain, dex, market, quantity, ...) 3) remove_liquidity(chain, dex, market, quantity, ...) Also integrate dydx and apollox to open and close long or short positions via market as well as limit orders on at least ...

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    Deadline: 1.5 days PLEASE READ CAREFULLY !!! Fork existing Metamask wallet, 1. Even metamask is installed, both metamask must work together For example : from html if run : -> open Original Metamask -> open Forked Metamask means my metamask 2. Make default network my own RPC URL At the moment original metamask default rpc URL is Ethereum Mainnet But I want my own RPC URL must be default 3. Make simple html with button to connect to Forked Metamask not original Metamask 4. Make documentation while forking : which parameters will be changed. 5. Name Forked Metamask as Nizzle

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    Create Remix Plugin Đã kết thúc left

    Deadline: 2 days 1. Load Smart Contracts by file like remix do 2. Add Two button deploy to Ethereum and Binance Smart Chain 3. If user clicks ethereum deploy current smart contract (if metamask is different network change network to ethereum forcefully) 3. If user clicks binance deploy current smart contract (if metamask is different network change network to binance forcefully)

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    1 to 1 Rust Training Đã kết thúc left

    We have 1 programmer to retrain from C++ to Rust. Need a person to pair up for 4 wks , 4hrs per day to train on Rust. Working on a real world example to hook up a Trading UI using Rust (graphql and others) Experience on Ethereum useful with invocation of Smart contracts abi for solidity.

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    We are looking to create a new crypto coin within either Ethereum or Cardano blockchain for which we are looking for a two Blockchain Engineers to come on board. Requested Profile: You have completed a university degree, for example in Computer Science, Econometrics, Biology; You are obsessed with blockchain technology and would like to be able to work with it professionally; You have experience with C++, R, Python, Matlab, Tableau, Solidity, Hyperlegder, Stellar, Ripple (at least a few); You have good communication skills and you can work well together; You are willing to continuously train yourself; You speak Dutch and you also master the English language in word and writing; You breathe IT and you have the ambition to stay in this corner. * High-Tech features * Whitepaper Writ...

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    Trophy icon Property title deed Design 2 ngày left

    ...property cards or title deeds like we have in monopoly. But in monopoly game the cards or designs are very simple. On top there should be property name box with a BG color Then there should be area where i can edit and put up text of my choice. Rest should be designed . Also on the same property card or title deed card. there should be area where i can put any logo e.g Logo of bitcoin or any Ethereum logo. Looking forward to great designs. Requirements : High Resolution At time of delivery i would need following files Editable PNG file High Resolution JPG file. and same Image in One GIF file as well. It should be designed in a way that i can edit colors and text later on for property cards. Attaching Monopoly cards as example. Remember that these designs are quite simple...

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    Bảo đảm
    $30
    87 bài tham dự

    Make a few adjustments to an Ethereum smart contract using Solidity. Integrate it with 2 WordPress front end (2 sites). The project will be done in 3 parts according to a detailed brief. The project must be done ASAP. (20 days at the most) First part 3 to 4 days Second part – 5 to 8 days Third part – 5 to 8 days

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    I have a nodejs bot that buys and sells on the ethereum/ bnb blockchain. It can detect new launches and rug-pulls and the dirty stuff devs may do. 1) Bot can detect "Liquidity add", "liquidity removed", "renounced ownership", "liquidity locked"etc. You need to do the following; A) when the bot detects i.e. "liquidity removed" of a token by a Dev it must update my MongoDB database B) it must add the wallet of that dev to another MongoDB called dirty-devs Simple and sweet. That's it.

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    yo coders, I have a fully functional nodejs bot that buys and sells newly launched crypto tokens on ethereum and bnb chain. I want you to add 1 criteria when BUYING. 1) compare the intended contract against a .json database (locally stored) 2) if found, look into that contract details 3) if the token in that .json database meets criteria A, B and C, then buy it. 3) else do nothing it's simple as a cake if you know what you are doing.

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    NFT smart contract Đã kết thúc left

    Hello, I am looking for a blockchain developer to create my nft smart contracts on Elrond and Ethereum (upgradable contract). Elrond has contract templates ready and the github has a lot prewritten codes you can use. In a later stage I need you also to create a staking contract on Elrond (mutiversx new name)This will be a new project Lets discuss.

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    Arbitrage opportunity scanner Đã kết thúc left

    I need a program in python or whatever works best, to scan Api's of crypto currency exchange platforms, and alert me of price discrepancies of bitcoin, ethereum, solana, cardano, etc. If the program can buy and sell on my behalf even better.

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    Build a blockchain game app Đã kết thúc left

    I am planning to build a crypto game now. It will be similar with CryptoPop game. You can check it here Project details: - smart contract for crypto game. (it will be deployed on ethereum network) - integration with smart contract on react web and react native - backend part if needed Please make a bid if you have any experiences for this project. Thanks.

    $15 - $25 / hr
    Niêm phong
    $15 - $25 / hr
    43 lượt đặt giá

    Bitcoin, Ethereum oder die Blockchain sind dir gängige Begriffe und interessieren dich sehr? Du investierst vielleicht selber sogar in Kryptowährungen? Du schreibst gerne Texte und bist in der Finanzwelt Zuhause? Dann bist du hier genau richtig, denn wir suchen dich. Über uns Wir von Kafe Rocks sind nicht nur „the lighthouse“ für seriöses Igaming, wir haben auch seit kurzen unser Portfolio und Expertise um die Krypto-Industrie erweitert. Unsere Webseiten gehören mittlerweile zu den Top-Adressen im Krypto-Bereich in Deutschland und wir dürfen monatlich über 350.000 organische Besucher auf unserer Seite begrüßen. Dabei ist es uns sehr wichtig qualitativ hochwertige Artikel anzubieten, denn schlechte Krypto-Seiten gibt es...

    $160 (Avg Bid)
    $160 Giá đặt trung bình
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    Join and help create a modern cryptocurrency website. Goal: Build a cryptocurrency gambling website from PSD designs and requirements provided and discussed (google docs). Must be fully secure and fully tested with no bugs or issues. Experience Needed: - Send an example of your previous experience with Full Nodes ("Bitcoin Core" for Bitcoin and "Geth" or others for Ethereum) -Send an example of your previous experience making Desktop/Mobile responsive websites -Send an example of your previous experience accuractly converting a PSD design to a fully responsive website using MERN stack (or similar stacks) Timeline: ~45 days Milestone: Single milestone (No multiple step milestones or hourly)

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    ? Hey, I want do market research around the event industry in the crypto space. I want to know how many crypto events and conferences took place in 2021, 2022. For each event, I want to know the subject, location, number of attendees, length and the most important item of all, which platform they used to livestream the event (if any) Im specially interested in the ethereum ecosystem, so I would like to get date primarily around that first, but you can expand the data sets to other ecosystems like bitcoin, solana etc... Plz let me know if you can do this, which package I need to get and If I can pay u using crypto.

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    I would like to have a White label (change the logo and brand name) and deploy an existing blockchain and NFT project. 1. Change Frontend 2. Deploy the backend 3. Deploy the contract (Ethereum Mainnet, Goerli, Gnosis Chain, Mumbai and Polygon) I don't need all chains.

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    I need a skilled react developer who can build a frontend mockup templates for secret finance wallet of ethereum. Some UI materials are given and preferred to be using MDB. Urgent task!

    $15 - $25 / hr
    Niêm phong
    $15 - $25 / hr
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    i need own cryptocurrency Đã kết thúc left

    i need own cryptocurrency based on ethereum

    $108 / hr (Avg Bid)
    $108 / hr Giá đặt trung bình
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