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    6,846 ethereum dapps 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

    €1191 (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

    €242 (Avg Bid)
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    1 offres
    API payements S'est terminé left

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

    €67 (Avg Bid)
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    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 !

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    ...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...

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    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...

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    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.

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    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...

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    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...

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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

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    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).

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    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 ...)

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

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    ...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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    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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    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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    Ethereum node sync issues 5 jours left
    VERIFIÉ

    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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    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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    ...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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    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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    ...looking to build a non-custodial (self-custody), multi-chain, wallet with on/off ramp for fiat. I'd also like an integrated DEX/exchange/swap feature where we will charge a transaction fee (not sure if I would need to set up a separate treasury function to collect and store these fees, etc?). Happy to hear suggestions on collecting fees. Also, I'd like this wallet to be able to connect to other Dapps/protocols as well (not sure if this would need to be integrated with existing tech to do so, ie, WalletConnect or something similar?) I'd like this multi-chain, as many chains to begin with - happy to take your advice here. My plan would be to start somewhere and build this out over time. Longer term plan would be to build out a "Pro" version for institution...

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    ...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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    Smart Contract developer on XRPL S'est terminé left

    I'm looking for a smart contract developer who has good experience on XRP network. I'm going to build some dapps on XRP network. If you're also good at Front-end work, it's great. But currently, looking for a XRP network expert.

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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,

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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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    ...to buy, sell, provide liquidity and remove liquidity) It should include any EVM based chain - iE Ethereum, Binance Smart Chain, Avalanche, Tron, etc. Also you should include as many exchanges as possible. Please provide a list of exchanges you propose to integrate when applying for this project. Some DEXes are copy pastes of Uniswap - all of them should be integrated. 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 Ethereum and Binance Smart Chain. there should be 1 method: 1) place_futures_order(c...

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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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    Solidity Smart Contract S'est terminé left

    Developing a Decentralized Applications (DApps) incorporating the features of smart contracts in blockchain In this task, you will develop a decentralized application with required smart contract(s) and deploy it on blockchain. You also need to create necessary front-end interfaces (as applicable) to interact with the deployed smart contract(s). The application allows a number of friends (maximum 10 and minimum 3) to start a new company. All of the friends must contribute an equal percentage of investment for the company and one of them becomes the manager of the company. Whenever the manager of the company needs any thing to purchase for the company, he requires the approval from his friends. If the manager receives the positive approval from at least 50% (of the total number of fr...

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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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    Hey, developers! We have been working on some proejcts about cryptocurrency such as Dapps. Thus, our team is looking for a senior full-stack developer who is strong in frontend. You can get into our team's business and can work for a long-term if your skillset is verified. Role: remote Rate: $8 -15/hr Woking hours: full time, over 40 hours per week if possible on weekend. Stack: js/ts, frameworks(react, vue, next, angular), material ui + styled components, & , github/gitlab, figma/adobe xd Beginning is half done. If you're interested in it, plz contact us. Thanks

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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 12 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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    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 S'est terminé 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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