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Ethereum is a decentralized platform that runs smart contracts- applications that run exactly as programmed without any possibility of downtime, censorship, fraud or third party interference. 雇佣 Ethereum Developers

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    97 份搜到的工作,货币单位为 HKD

    Web3 smart contract developer for ethereum nft project Prerequisite Experience: * Experience developing for multiple past NFT projects on Ethereum * Integration with wallets, ipfs, marketplaces * Experience defending attacks, coding with a nuanced eye for what areas have been exploitable in other projects and ability to write code that is watertight and will be audited prior to launch * Experience troubleshooting issues on the fly and being able to walk through examples of things encountered and overcome from prior projects * Must possess knowledge and ability to effectively communicate an understanding of all the steps and proper sequence from development perspective for taking a nft project from inception to post-launch and what things need to be accomplished

    $288 / hr (Avg Bid)
    $288 / hr 平均报价
    14 个竞标

    Web3 smart contract developer for ethereum nft project Prerequisite Experience: * Experience developing for multiple past NFT projects on Ethereum * Integration with wallets, ipfs, marketplaces * Experience defending attacks, coding with a nuanced eye for what areas have been exploitable in other projects and ability to write code that is watertight and will be audited prior to launch * Experience troubleshooting issues on the fly and being able to walk through examples of things encountered and overcome from prior projects * Must possess knowledge and ability to effectively communicate an understanding of all the steps and proper sequence from development perspective for taking a nft project from inception to post-launch and what things need to be accomplished

    $281 / hr (Avg Bid)
    $281 / hr 平均报价
    26 个竞标
    GETH helper 6 天 left

    Create a private chain using GETH, I want to write and deploy a contract to use that private chain as a sidechain. I want to learn a series of courses.

    $265 / hr (Avg Bid)
    $265 / hr 平均报价
    4 个竞标

    Hello, I need someone to help me fork the below page, but on Solana Network. Forking the bellow page: It must be a working product, and it must have no bugs. The webapp will be designed by myself, and the prediction page is where I need help. Please check documentation below: . I am looking for a long-term developer to work with me. Thanks

    $19212 (Avg Bid)
    $19212 平均报价
    7 个竞标

    We have been working on a 3D NFT project and we need a bunch of Blockchain developers to complete it

    $23 / hr (Avg Bid)
    $23 / hr 平均报价
    1 个竞标

    New blockchain project to be deployed on Avalanche. In summary we require smart contracts to be written for our project and an Avax crypto currency to be created, and for contracts to be deployed on the Avax network. We require someone with exceptional experience with smart contracts, avalanche, Avax and solidity. we also require the backend of the website to be coded and integrated with the contracts. Full details and fee to be disclosed and discussed further in more detail and in private. Looking forward to hearing from you

    $25995 (Avg Bid)
    $25995 平均报价
    39 个竞标

    blockchain, etherum, pancake swap, uniswap developer needed

    min $390 / hr
    min $390 / hr
    0 个竞标

    fork pancakeswap, uniswap and sushiswap developer needed

    $164 / hr (Avg Bid)
    $164 / hr 平均报价
    3 个竞标
    trading view strategy coding 6 天 left
    已验证

    need someone to code a tradingview strategy using pinescript .... for trading crypto currency more details will be provided later

    $1528 (Avg Bid)
    $1528 平均报价
    9 个竞标
    Create a defi 2.0 6 天 left
    已验证

    A development that has experience in DEFI

    $187 / hr (Avg Bid)
    $187 / hr 平均报价
    14 个竞标

    build a dex with longtermorders on Uniswap V3

    $26798 (Avg Bid)
    $26798 平均报价
    20 个竞标

    I run a website and some social media site for charity and causes. I have decided to create a pencakeswap tradable token on binance smart chain based on my charity. I need someone to make this happen. I am based in Australia

    $3236 (Avg Bid)
    $3236 平均报价
    12 个竞标

    Hi I am looking for a crypto launchpad same as website features 1. Visitors can create their token on bsc chain, please check pink sale featuers 2. lock liquidity with bsc token can setup presale 4. fair launch option 5. Admin panel to change fees, lookup any website settings to change or fix 5. all other pinksale features important: we like our own token as utility token for the launchpad, people buy our token and convert it into bnb to pay or any way as long our token classify as utility token Thank you

    $3197 (Avg Bid)
    $3197 平均报价
    4 个竞标
    NFT Project 6 天 left

    We are looking for a blockchain developer (front/backend web, smart contract) to join our NFT project. Must be experienced in Ethereum smart contract, including NFT minting, staking, wallet registration etc. Ideal to have some knowledge and experience in Tokenomics (utility token, token staking). If you think you are a fit or interested to find out more, please feel free to reach out.

    $19438 (Avg Bid)
    $19438 平均报价
    44 个竞标

    want to build token based on binance smart chain in just 2 hours

    $1302 (Avg Bid)
    $1302 平均报价
    3 个竞标

    We need a very experienced and fast Whitepaper guy, that can create us the design & template of an unique and special Metaverse project, needs to show us couple of template, we choose one, give content, needs to be done very fast

    $647 (Avg Bid)
    $647 平均报价
    19 个竞标

    I need to create 10 Levels Unilevel Smart Contract MLM, with 8 Stages. In each stage, we can give our members specific Course (Videos +PDF) Can you do that ? Duration and Price please? Hope we can work together for long term. Give us the best price, because we need to create 3 Projects as a start. one by one. Reference:

    $11625 (Avg Bid)
    $11625 平均报价
    4 个竞标

    Hi, I would like to fork an OHM project on Arbitrum.

    $148 / hr (Avg Bid)
    $148 / hr 平均报价
    12 个竞标

    We are looking for a solidity who can write the smart contracts for ERC1155 and staking. Will share the details with the shortlisted candidates. Thank you

    $1723 (Avg Bid)
    $1723 平均报价
    21 个竞标

    Looking for a developer (blockchain etherium) to set up the smart contract of a nft project, the development of the algorithm and code of 'frappage' of NFT (mint). The developer can invest himself for the mission or have a more important role in the project which can undoubtedly be a nice challenge for any lover of the crypto universe; Do not hesitate to contact me for any questions.

    $21582 (Avg Bid)
    $21582 平均报价
    60 个竞标

    Scammer has gotten access to my Metamask wallet and almost wiped out my investments but there's still some left in staked tokens. I want find a way to withdraw the funds without triggering the sweeper that has been installed by the scammer. I'd like some feedback on this suggestion as i don't know if this is possible? Perhaps you know of a method that is possible? I'd also like a burner for both the eth network and the smart chain network that I can install on this wallet to stop any further transactions. Again if there is a better method that I'm unaware of then please let me know. Thanks Keilan

    $1271 (Avg Bid)
    $1271 平均报价
    17 个竞标

    I have ICO application for own token developed by React. I need a developer who can integrate presale and airdrop into ICO system.

    $4897 (Avg Bid)
    $4897 平均报价
    8 个竞标

    ( but it's in etherium network ) .. cneed type website in solana network .. sample websitesite work with solana network is

    $11625 (Avg Bid)
    $11625 平均报价
    4 个竞标

    An ERC20 token has been Approved For Trade OnUniswap V3 A trading pair with ETH has been established Assistance is required with creating the initial liquidity pool. Contract Addresses will be provided so all that has been done so far can be seen

    $203 (Avg Bid)
    $203 平均报价
    3 个竞标

    I would like a crypto token that can be used for in game liquidity, where players can send and receive each other tokens, also the ability to stake the tokens if required.

    $265 / hr (Avg Bid)
    $265 / hr 平均报价
    28 个竞标

    Hello, As part of a launch of a collection of NFT on the Ethereum blockchain, I am looking for a developer for the realization of the website (one page) as well as for the execution of the smart contract (mint on the site, reveal on opensea, etc...). If you are interested, it would be a pleasure to exchange with you and to show you the project in more details.

    $12787 (Avg Bid)
    $12787 平均报价
    50 个竞标

    We're creating a 18+ adult artwork platform built around an ERC20 token. We're looking for someone who can do the following: ## Part 1: Token Launch on Ethereum 1) Review our current tokenomics plan and provide feedback; 2) Provide a good strategy on how to deploy those tokenomics (including: burn, how wallets are structured, smart contract functions that need to be available, upgradability, etc.) 3) Use OpenZepplin (or another standardized smart contract platform) and help us deploy the token to the blockchain. First on Rinkeby, and then on live. We already have a Smart Contract we drafted and deployed successfully, but it will need to be reviewed. 4) Making sure we are provided full ownership and there's no smart contract vulnerabilities. The developer should not maintain...

    $7735 (Avg Bid)
    $7735 平均报价
    15 个竞标

    Dear freelancers, ### SMART CONTRACT 1 ### Write a Smart contract for staking token, copy and adapt the following contract: or requirements: - All functions in the contract are to be changed only by the admin. - possibility of staking and unstaking without locking. - The "staking parameters" entries must be identical to the attachment. FRONT END - The interface must be similar to the one in the attached image, available at the link: ### SMART CONTRACT 2 ### Write a smart contract for the minting of Stablecoin in the fantom blockchain, you can copy and adapt the following contract: requirements: - All functions in the contract are to be changed only by the admin. - The contract must be able to accept only the tokens that the admin adds to the whitlist, the first ...

    $39765 (Avg Bid)
    $39765 平均报价
    15 个竞标

    Dear freelancers, ### SMART CONTRACT 1 ### Write a Smart contract for staking token, copy and adapt the following contract: or requirements: - All functions in the contract are to be changed only by the admin. - possibility of staking and unstaking without locking. - The "staking parameters" entries must be identical to the attachment. FRONT END - The interface must be similar to the one in the attached image, available at the link: ### SMART CONTRACT 2 ### Write a smart contract for the minting of Stablecoin in the fantom blockchain, you can copy and adapt the following contract: requirements: - All functions in the contract are to be changed only by the admin. - The contract must be able to accept only the tokens that the admin adds to the whitlist, the first ...

    $13684 (Avg Bid)
    $13684 平均报价
    21 个竞标

    I’m looking for someone that can creat a simple website that is able to check the ownership of an NFT by the user. User would access the website, connect their wallet (multiple wallets supported please) and the website would then verify that they own a certain NFT. If verification is successful, they are sent to another page with a form. Looking for a begin-to-end solution. Simple but fully functional. I have no coding knowledge or experience, need something ready to be deployed as well as detailed instructions to do so. Including recommending a hosting service to put the website love and what features it needs to support so that the ownership checking system works. For an experimental personal project, please send proposals if you’re interested in helping out at a (very) a...

    $1505 (Avg Bid)
    $1505 平均报价
    19 个竞标

    I would like to promote my project into the crypto communities on Reddit (paid ads) and our Token. I have everything ready to go! Reddit campaign for now. Must have proven experience! :) thanks

    $140 / hr (Avg Bid)
    $140 / hr 平均报价
    7 个竞标

    - Deploy Sushi contracts for SWAP and FARM only. - Configure 5 to 7 farms. Details to come. - Integrate the SmartBCH network. - Support only one wallet: Metamask

    $2113 (Avg Bid)
    $2113 平均报价
    7 个竞标

    We need to start a Blockchain Game with NFTs Integrate with ImmutableX (IMX) Create custom ETH Contracts - Deliverables A simple POC of Game that later on can be improve and meet our specific requirements and integrations We're looking for long term developers

    $1544 (Avg Bid)
    $1544 平均报价
    10 个竞标

    We have a DApp website Project, and today we present some problems with events subscriptions shows: RPC Error: Internal JSON-RPC error. {code: -32603, message: 'Internal JSON-RPC error.' Message: too many request.

    $211 (Avg Bid)
    $211 平均报价
    6 个竞标

    A development that has experience in DEFI

    $5481 (Avg Bid)
    $5481 平均报价
    12 个竞标
    Copy trader -- 2 5 天 left
    已验证

    I want a copy trade for the kucoin platform

    $7844 (Avg Bid)
    $7844 平均报价
    14 个竞标
    Blockchain developer required 5 天 left
    已验证

    we are looking for experienced blockchain developer for small task.. you must be experienced with the Ethereum, Smart Contract, Solidity, Celo Server, OpenZeplin, GSN and etc... If you are familiar with them, please contact me.

    $125 / hr (Avg Bid)
    $125 / hr 平均报价
    31 个竞标

    ESP: Necesitamos alguien que nos asesore para crear el código de nuestro ERC-20 token y nos ayude a desarrollar nuestros tokenomics. El trabajo consistiría en realizar el contrato en Solidity de un token ERC-20, que después será deployed con Remix IDE por nuestra parte, y asesorarnos resolviendo un par de cuestiones sobre la distribución y suministro de nuestros tokens (ayuda con los tokenomics). ------------ ENG: We need someone to advise us to create the code of our ERC-20 token and help us to develop our tokenomics. The work would consist in make the Contract for Solidity of an ERC-20 token, which will then be deployed with Remix IDE on our part, and advising us by solving a couple of questions about the distribution and supply of our tokens (help ...

    $1630 (Avg Bid)
    $1630 平均报价
    11 个竞标

    Regarding the launch of a huge NFT project to transport 8000 Cro-magnon Man alive in the Metaverse, we are looking for our Developer to develop the smart contract. Composed of a team of entrepreneurs and NFT enthusiast we have build the few last month an ambitious project behind this collection and you can take part of this awesome adventure. We are looking for a blockchain developer who has React skills and is experience with Integrating smart contracts. Developer Requirements: At least 2 years of experience as a blockchain developer. Knowledge of blockchain protocols. Must have problem-solving skills. Skills and Expertise: Javascript React Node.js Typescript Web Application Web3 Smart Contract If you are interested in working on this project, please reach out to me. I'd prefera...

    $460 / hr (Avg Bid)
    $460 / hr 平均报价
    50 个竞标

    I have a new idea for developing a new Coin but I want to have the services from A to Z, full development, and the developer need to have full idea and experience of crypto, i will share the idea after negotiating an NDA,

    $72489 (Avg Bid)
    $72489 平均报价
    17 个竞标

    How are you? We need a website for our NFT project and we need help making the NFT's on the Ethereum ( built with solidity) blockchain and then uploading the NFT's to open sea when it is all done. We can give you up to 8-10 weeks to make this for us.

    $6378 (Avg Bid)
    $6378 平均报价
    26 个竞标

    Looking for a programmer to create a bot that will recieve telegram signals and then immeadiatly execute an intra-exchange on Kucoin. Below is a sample of the the telegram signal. Execution time is critical. The moment the signal sent the trade must execute. The bot will have to move funds to different coins For example if the signal says to BUY GXS/ETH SELL GXS/USDT And there is only BTC, then it will first have to buy ETH/BTC . And then execute the buy GXS/ETH And then execute SELL GXS/USDT Likewise at the end of the trade it should sell it back to the original coin. To get ready for the next round. Buy BTC/USDT There are many refinements that need to be Added to make this profitable but for now I just want a very basic functioning bot. If you can do this well We can s...

    $3400 (Avg Bid)
    $3400 平均报价
    6 个竞标

    I need a staking contract created for my nft project that will reward owners with a token like this contract And also a webpage so owners can submit their nft to be staked. like this webpage

    $2183 (Avg Bid)
    $2183 平均报价
    16 个竞标

    Dear freelancers, ### SMART CONTRACT 1 ### Write a Smart contract for staking token, copy and adapt the following contract: or requirements: - All functions in the contract are to be changed only by the admin. - possibility of staking and unstaking without locking. - The "staking parameters" entries must be identical to the attachment. FRONT END - The interface must be similar to the one in the attached image, available at the link: ### SMART CONTRACT 2 ### Write a smart contract for the minting of Stablecoin in the fantom blockchain, you can copy and adapt the following contract: requirements: - All functions in the contract are to be changed only by the admin. - The contract must be able to accept only the tokens that the admin adds to the whitlist, the first ...

    $20444 (Avg Bid)
    $20444 平均报价
    42 个竞标

    We are looking for an expert. Long term experience with sniping and trading bots is a must. Here is what the bot has to do: It needs to snipe the same block the liquidity got added. Not the next one. It will always need to buy on the absolutely first block, before all market competitors. So, the bot will: - Scan the blockchain and find transactions based on certain criteria (pending on the block aka mempool). - Speed of the bot is of absolute paramount importance. No more than 0.01 seconds. - Sell function needs to be able to set X amount of BNB, after X amount of profit. - Buy function needs to be able to stop the trade/ snipe if first block is missed, OR set to maximum "X" amount of marketcap. - Gas fee and slippage needs to be able to be set. Each line of code is to ...

    $5824 (Avg Bid)
    $5824 平均报价
    4 个竞标

    Looking Any freelancer who have expirence in creating ERC20 or TRC20 tokens Whitepaper IEO ICO CMC Listing Marketing Teligram Bot Teligram chennal wrbsite promotion only expirence devloper only bid on project if you have ready to use any script you can use bid money cant be changed this is the final condition

    $1419 (Avg Bid)
    $1419 平均报价
    4 个竞标
    NFT monitoring 4 天 left

    Looking for help building a script that: 1) Monitoring & ranking of NFT collection - constant monitor of smart contract for changes regarding metadata (setBaseURI, etc) - check whole collection once metadata available - rank items (rarity tools algorithm or something similar) - list items with marketplaces links (list per any order specified by the user) - allow filtering for buy only option in marketplaces and limit of eth to be paid. 2) Actions - option to buy certain item based on filters (rarity, gas, eth price) The whole idea is to monitor one (or more contracts) for metadata update and once the metadata is available, then rank each NFT based on its rarity and provide the ability to buy it based on certain inputs, or manually at a later stage. You would help me with the framew...

    $4546 (Avg Bid)
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    23 个竞标

    We need a blockchain developer to develop a blockchain wallet for us. let me know if you can we can discuss more

    $5388 (Avg Bid)
    $5388 平均报价
    34 个竞标

    I need a simple token sale contract.

    $2331 (Avg Bid)
    $2331 平均报价
    10 个竞标

    Hello, In order to trade more efficiently, i need a GUI which is connected to my wallet and sells my holdings/tokens in different ways. There should be an autosell if price drops x% (f.e. 50%) from my entry price or if it rises 400% it should sell 1/3 of all ABC tokens.

    $3205 (Avg Bid)
    $3205 平均报价
    10 个竞标

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