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    6,502 ethereum travaux trouvés au tarif de EUR
    Smart contract Opensea ethereum S'est terminé left

    Bonjour, Je recherche un développeur pour créer un "smart contract". La collection est à déployer sur Opensea/ethereum avec ces caractéristiques: Royalties, Erc-721, whitlist avec 1 à 5 nft Merci de mettre en option l'intégration du site internet web3

    €1173 (Avg Bid)
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    16 offres
    Project for Great Start S'est terminé left

    Bonjour Great Start, Je voudrais savoir quel est le budget pour créer un smart contract opensea ethereum ? Royalties, Erc-721, whitlist avec 1 à 5 nft merci

    €238 (Avg Bid)
    €238 Offre moyenne
    1 offres
    API payements S'est terminé left

    J'ai besoin d'une API payement -carte banquaire (visa,mastercard) -paypal -bitcoin -ethereum

    €66 (Avg Bid)
    €66 Offre moyenne
    4 offres

    Bonjour, je suis actuellement à la recherche d'une développeur solidity qui a des connaissances sur la blockchain, Ethereum, le web3.0 et les NFTs. Le projet ne peut être évoqué plus en détails dans l'annonce, je vous laisse donc me contacter si cela vous intéresse. Au plaisir d'échanger avec vous !

    €2325 (Avg Bid)
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    26 offres

    ...il y aurait un tableau de stocks pour calculer les plus-values lors de la vente - Un présentant les écritures comptables - Un dernier permettant d'avoir des indicateurs de gestion sur l'activité Onglet 1 : l’explorateur 1. Il faut demander à l’utilisateur de rentrer l’adresse blockchain concernée et de sélectionner le réseau parmi ceux présents sur Zapper à savoir : Avalanche, Arbitrum, BSC, Ethereum, Fantom, Polygon ou Optimism. 2. Suite à ces informations, le fichier devrait pouvoir aller tout seul sur le site de Zapper récupérer le csv correspondant 3. Le csv devra être mis en forme automatiquement c’est-à-dire que les colonnes soient fractionn&e...

    €492 (Avg Bid)
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    4 offres

    Bonjour à tous, nous recherchons un développeur spécialisé dans le jeu vidéo et plus précisément la block-chain afin de nous aider à mettre notre jeu en relation avec celle-ci et à permettre à nos personnages de se déplacer et de réaliser leurs différentes actions. Nous sommes basés en Suisse et il y'a une quantité de travail importante donc nous aimerions de préférence quelqu'un d'assez disponible et parlant le français, l'allemand ou l'anglais. L'intégralité des détails seront livrés une fois un contrat de protection établi. Possibilité de dépasser le budget de 10'000$ si le tra...

    €8331 (Avg Bid)
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    6 offres

    Bonjour, Dans le cadre de la réalisation d'une collection de NFT sur la blockchain Ethereum, je suis à la recherche d'un développeur pour la réalisation du site web (one page) ainsi que pour l'exécution du smart contract (mint sur le site, etc...). Si cela vous intéresse, ce serait un plaisir d'échanger avec vous et de vous faire découvrir le projet plus en détails.

    €2311 (Avg Bid)
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    27 offres
    Build me a website S'est terminé left

    Il s'agit Essentielement de la Création de Site Web.. Nous avons deja un budget alloué au Projet... Contenu du Site: Nous avons besoin d'un Site dans lequel les membres peuvent investir de l'argent Reel à travers des moyens de Paiement tels que : Pay Pal, Master/Visa Card, Payeer, Perfect Money, Bitcoin, Ethereum et ceci sans difficulter ni protocole... Nous voulons que une fois sur le Site, les Gens soient Impressionés du Design du Site, de la Qualité des Images dinvestissement, des Programmes de Reference, de la Faciilité a acceder aux pages.. Nous voulons qu'il y ait des fonctionalités sur le site tels que : Les plans dinvestissement, Les Depots, Les Retraits, Inscription, Connexion et le Plan d'Affili...

    €309 (Avg Bid)
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    9 offres

    Recherche Investisseur ou actionnaire. Pour projet de ferme de minage. Coach Expert en crypto monnaie depuis 2009,   Ayant suivi le développement des différentes crypto monnaie et blockchain. Propriétaire de plusieurs ferme de minage en France et en Suisse . Ayant fait une étude approfondie des principaux whitepaper, BTC, XBT Bitcoin 2009 ETH Ethereum 2015 BCH, BCC Bitcoin Cash 2017 XRP Ripple 2012 Je suis dans la légitimité de vous proposer les services de mes équipes.   Aussi bien du côté de la Formation que sur l'Aspect technique ou programmation du matériel overclock GPU. Sachant travailler aussi bien sûr RIG que sur ASICS, Sous Linux ou sous Windows.   N'hé...

    €6567 (Avg Bid)
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    PRIAM PROJECT S'est terminé left

    Blockchain, Solidity, Ethereum, hyperledger, Javascript, JSON, WEB3 * Freelance * 300 à 500€/J * PRIAM est une société de conseil spécialisée en blockchain. Afin de pouvoir répondre à une demande croissante de Proof of Concept, nous cherchons un développeur qui pourrait assister sur l'étude d’application de la blockchain pour des PME dans le retail, service… *Localisation : Paris de préférence / possibilité remote *Date de début : ASAP

    €494 (Avg Bid)
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    7 offres

    Je recherche quelqu'un pour écrire 50 sujets de 50 mots minimum par sujet (2500 mots au total) dans un forum dédié au Bitcoin et aux crypto monnaies. Les sujets devront porter sur les crypto monnaies (Bitcoin, Litecoin, Ethereum, etc.), les Exchanges (Coinbase, Binance, etc.), le stockage (Ledger Nano, Trezor, etc.), les dernières news, etc. Je n'impose pas les sujets, il faut simplement qu'ils soient variés et d'actualité pour un SEO optimisé (je vous recommande l'utilisation de Google Trend comme source d'inspiration).

    €77 (Avg Bid)
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    16 offres
    Poster dans forum crypto-monnaies S'est terminé left

    Poster dans un forum crypto-monnaies sur des topics divers (bitcoin, ethereum, minage, stockage, etc.).

    €44 (Avg Bid)
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    8 offres

    Bonjour, Je suis à la recherche d'un développeur qui sera mettre en place un script, pour augmenter le hashrate de mes équipement (mineur avec carte graphique RX570, P106-100 ...)

    €528 (Avg Bid)
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    2 offres

    Nous souhaitons créer un cryptocurrency de communauté. Basé sur la blockchain ethereum. Intégration market... Nous consulter pour plus d'informations

    €375 (Avg Bid)
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    2 offres

    ...recherche d'un freelance, ou agence afin de monter la second partie de notre projet professionnel. Les connaissances suivante sont requise: - Connaissance générale de la crypto-monnaie - Connaissance création / gestion d'un Pool - Création de site internet - Création C++ Notre projet consiste à mettre en place des Pools dans les crypto que nous minons actuellement. A savoir : - Ethereum - Ethereum Classic - Expanse - Pascalcoin - SIACoin - Decred - Monero - LBRY - Zcash - Dash Nous souhaiterions une interface équivalente à " ". La second partie serrait la création d'une application de mining ( solo / dual ) sous licence. Notre objectif n'est pas de le v...

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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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    14 offres

    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.

    €686 (Avg Bid)
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    9 offres

    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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    10 offres

    ...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 token: ERC20 token 4. NFT Marketplace (like "NFT Marketplace" in Pancakeswap or OpenSea) We do not specify t...

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    Bot sorare (Max budget 100€) S'est terminé 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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    1 offres

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

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    Big Query Ethereum Decoding S'est terminé 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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    5 offres

    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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    7 offres

    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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    14 offres
    Ethereum node sync issues S'est terminé 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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    DEX Dapp for NFT on Binance Network S'est terminé left

    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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    5 offres

    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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    12 offres
    BLock Chain Coding S'est terminé 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 ...

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    12 offres

    ...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...

    €24 - €48 / hr
    À la une Urgent Scellé LDN
    €24 - €48 / hr
    39 offres
    Blockchain supply chain S'est terminé 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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    LDN
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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,

    €3160 (Avg Bid)
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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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    Fork Metamask Wallet extension -- 2 S'est terminé left

    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 S'est terminé 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 S'est terminé 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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    Blockchain / Smart Contract Project S'est terminé left

    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 3 jours 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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    87 propositions

    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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