Blockchain is a distributed register that is used to maintain a continuously growing list of records, called blocks. It has revolutionary applications in finance (such as cryptocurrencies like Bitcoin) and decentralized applications like online voting.

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    332 trabalhos encontrados, preços em EUR

    Já tenho o site e a coleção prontos - 10.000 itens. Preciso de alguém para: - Criar o smart contract - Integrar no site para mintar - Responder algumas duvidas - Suporte para possiveis problemas e acompanhamento no dia do lançamento

    €502 (Avg Bid)
    €502 Média
    6 ofertas
    NFT project 6 dias left

    An upcoming NFT project launching on Solana is looking for a Solana developer to create the mint function, conduct testing, create the smart contract We need a developer for the Solana blockchain that we can trust and work with to create up to 7,777 NFTs from 100 - 150 images. Need to program on Solana network to allow each NFT to randomly generate when minted. Requirements: -Experience with...

    €1620 (Avg Bid)
    €1620 Média
    8 ofertas
    web3py expert 6 dias left
    VERIFICADO

    Hi I am looking to a web3py expert to finish simple project in 1 or 2 days. This is a simple project 1. Get data using Multicall by web3py 2. Get the BNB price in [fazer login para ver a URL] using web3py or using any method(Web scraping is also possible) If you finish in today, then bonus will be followed And you will get the other project which is on going in our team.

    €21 (Avg Bid)
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    1 ofertas

    upgrade solidity 0.4.4 to latest (0.8.9)

    €30 / hr (Avg Bid)
    €30 / hr Média
    14 ofertas
    Baby Trader Joe 6 dias left

    I have a website that is unable to integrate a metamask connection via web3. You also need a buy button, in which the contract will be inserted. I'm willing to pay you if you can do it for me. There is an example of a site with dapp, as I would like to see it, and my site, on which I am trying to implement this. [fazer login para ver a URL] P.S. Avalanche network

    €165 (Avg Bid)
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    3 ofertas

    We want to integrate blockchain technology within an existing product. This requires extended research, investigation and understanding of the concept to verify the possible operation. The objective of the blockchain integration research is the enhancement of security of our existing product. We will explain you more in detail as this concerns a confidential project. Budget $800

    €919 (Avg Bid)
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    21 ofertas
    web browser 6 dias left

    i'll be needing someone to create a web browser for windows, mac android and ios that fuctions just like cryptotab. Where users can download it and use it to mine monero while they get a certain percentage of their mine sent to their wallet

    €428 (Avg Bid)
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    1 ofertas
    Pancakeswap 6 dias left

    I need to create a fork of pancakeswap, and create my own token swap project on the BSC. It should have following features: - Exchange / Liquidity - Farming pairs - Staking pools - Lottery - Token Price Explorer Please contact me only if you can do all request I had indicated and make a site ready to be used. If you worked on pancake fork before, would be plus, please share the site URL you fork...

    €555 (Avg Bid)
    €555 Média
    13 ofertas
    Help Setting Up NFT 6 dias left
    VERIFICADO

    Hey Freelancers, I'm looking for someone with background in creating NFT's. If you have experience creating NFT's, I want to hear from you. I am looking to build something similar to this link. So like baseball cards, but for a different product we sell. [fazer login para ver a URL]

    €9 / hr (Avg Bid)
    €9 / hr Média
    7 ofertas

    Planning a 10k nft collection drop and need a website with minting functionality so on the drop day people can connect their metamask and mint an erc721 nft with the buyer paying the gas fees.

    €388 (Avg Bid)
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    14 ofertas
    Contract BEP20 -- 3 6 dias left
    VERIFICADO

    I need a BEP20 contract Safemoon.

    €428 (Avg Bid)
    €428 Média
    6 ofertas

    I require a bot that scans atomichub for underpriced listings. The bot needs to scan the contract in real time and determine if the price is below the average price for the NFT/asset and then push a transaction to purchase. It should also scan bundles for the total of lowest listing price of all individual item in the bundle to determine if the bundle price value is lower than total of items in...

    €608 (Avg Bid)
    €608 Média
    3 ofertas

    I am going to fix my bep-20 token. I already discuss all details with dophine

    €539 (Avg Bid)
    €539 Média
    2 ofertas

    I am going to fix my bep-20 token. I already discuss all details with dophine

    €2568 (Avg Bid)
    €2568 Média
    1 ofertas

    I require a bot that scans atomichub for underpriced listings. The bot needs to scan the contract in real time and determine if the price is below the average price for the NFT/asset and then push a transaction to purchase. It should also scan bundles for the total of lowest listing price of all individual item in the bundle to determine if the bundle price value is lower than total of items in...

    €561 (Avg Bid)
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    6 ofertas
    deploy my ethereum token NOW 6 dias left
    VERIFICADO

    work over zoom so i can watch u

    €32 / hr (Avg Bid)
    €32 / hr Média
    9 ofertas
    Need Blockchain Developer 6 dias left
    VERIFICADO

    We have farms and pools on [fazer login para ver a URL] . They are currently on BSC, all we want is to move them over to MATIC and connect them to our UI. We want top make our UI prettier - just change styling of componets

    €616 (Avg Bid)
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    10 ofertas

    We have farms and pools on [fazer login para ver a URL] . They are currently on BSC, all we want is to move them over to MATIC and connect them to our UI. We want top make our UI prettier - just change styling of componets

    €827 (Avg Bid)
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    5 ofertas

    Assistance for associating METADATA with my NFT: json file ready but don't know how and where to upload it on NFT marketplace like Opensea

    €164 (Avg Bid)
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    11 ofertas

    Need Block chain NFT token creater

    €2287 (Avg Bid)
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    14 ofertas

    Hello, We are looking for a developer with experience in NFTs, Smart Contracts and ETH/SOL Blockchain that can create an EASY TO USE ERC721 Script that can generate Snapshots of project current wallets, holders and what they hold. The script can be done with Python, or ANY OTHER IS ALSO OK. Just tell me how it works and lets see what we can do. If you also have experience running Python Scripts...

    €449 (Avg Bid)
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    28 ofertas
    NFT Strategy Consultation 6 dias left
    VERIFICADO

    NFT Consultation Brief We are looking for an individual with advanced knowledge of blockchain to advise us on the following: - What blockchain platform would be suitable to deliver a Japan, and Australia (independently) NFT product using live sports content - Assessed for speed, scalability, manage large volumes, cost efficient and easy to manage / adapt with changes - What is the advice for ho...

    €631 (Avg Bid)
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    12 ofertas
    Ewallet block chain structure 6 dias left
    VERIFICADO

    Creating e Wallet and degital Tokens codes web/app

    €2252 (Avg Bid)
    €2252 Média
    31 ofertas

    Hello All, I all ready have full install up and running on my server i want someone who knows how to install light wallet and configure create api for btc and xmr. For experienced person it will take 2 to 3 days to make and i am ready to start from today if you fully confident that you will do it. Thanks

    €86 - €214
    Secreto
    €86 - €214
    2 ofertas
    make automatic Ethereum payments 6 dias left
    VERIFICADO

    make automatic Ethereum payments

    €32 / hr (Avg Bid)
    €32 / hr Média
    18 ofertas

    We are a startup game developer based in is based China. We had a game design which will be launch in 2022 Q2. It is a poker game, based on the future of real humans facing AI/robot poker battles Game Background Year ~2035, Poker game is the last standing ground which AI still cannot conquer. Human still able to beat AI in poker even AI had advanced so much, had beaten human all card games except...

    €19 / hr (Avg Bid)
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    15 ofertas

    Our team plan to launch a new hold-rewarding token on the fantom network with a similar mechanism to Hodl token. People hold our tokens and reward with USDC

    €420 (Avg Bid)
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    13 ofertas

    our team wants to deploy an ERC-20 token on the fantom network with a mechanism of earning USDC as the holding rewards (similar to Hodl token but on fantom network)

    €503 (Avg Bid)
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    11 ofertas

    Hi, we are planning to develop a crypto game. We need our own coin in the game to let users trade items and earn coins. Users can purchase our coin through cryptocurrency exchange platforms. Kindly refer to the attachment below to find about tokenomics. Please contact us if you think you are an ideal candidate for this job. And kindly provide your portfolio or experience. We prefer experienced pro...

    €1111 (Avg Bid)
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    13 ofertas

    Need code adjustment somehow. Any help would be appreciated. Also if someone wanna be engaged in a new project let me know ( as a team member), note- community project with small budget

    €139 (Avg Bid)
    €139 Média
    9 ofertas
    AtomicHub (WAX Blockchain) Bot. 6 dias left
    VERIFICADO

    I require a bot that scans atomichub for underpriced listings. The bot needs to scan the contract in real time and determine if the price is below the average price for the NFT/asset and then push a transaction to purchase. It should also scan bundles for the total of lowest listing price of all individual item in the bundle to determine if the bundle price value is lower than total of items in...

    €650 (Avg Bid)
    €650 Média
    10 ofertas

    I require a bot that scans atomichub for underpriced listings. The bot needs to scan the contract in real time and determine if the price is below the average price for the NFT/asset and then push a transaction to purchase. It should also scan bundles for the total of lowest listing price of all individual item in the bundle to determine if the bundle price value is lower than total of items in...

    €921 (Avg Bid)
    €921 Média
    3 ofertas

    I require a bot that scans atomichub for underpriced listings. The bot needs to scan the contract in real time and determine if the price is below the average price for the NFT/asset and then push a transaction to purchase. It should also scan bundles for the total of lowest listing price of all individual item in the bundle to determine if the bundle price value is lower than total of items in...

    €492 (Avg Bid)
    €492 Média
    2 ofertas
    Backend RoR 6 dias left

    Estamos buscando un desarrollador backend con ruby on rails, pruebas unitarias. • Manejo de tecnología Websocket • Manejo de API Rest. • JavaScript, HTML, CSS • Experiencia práctica con bases de datos relacionales y no relacionales • Experiencia en industria MLM/Fintech/Blockchain Ofrecemos sueldo entre 1500 y 2500 usd. homeoffice 100%. ¿...

    €2164 (Avg Bid)
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    7 ofertas

    Hi Freelancers I have a project to build NFT tokens with solidity and it should provide UI for the users based on [fazer login para ver a URL] and react.js. The developer should provide good samples of NFT sites that show their skills and experiences. I will provide the details by PDF on PM. Please put "APPLE" on the head of proposal. Thank you!

    €168 (Avg Bid)
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    30 ofertas
    Smart Contracts on Solana 6 dias left
    VERIFICADO

    System: A prediction bet platform which users can place bets using SOL in many different pairs BTC/USD ETH/USD SOL/USD … It must provide liquidity for each event by adding bets in both sides (prize pools) of the smart contract. Game logic: Every %X minutes a new round starts As the round starts Fetch asset price from an oracle System will place bets automatically in both UP and DOWN pools ...

    €770 (Avg Bid)
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    10 ofertas
    Build web application 6 dias left
    VERIFICADO

    Hi, I need someone or an agency to help me build a web application which needs to be developed using Blockchain programming. Regards, M

    €285 (Avg Bid)
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    9 ofertas

    I have been working on building opensea bulk offer making bot using opensea-js sdk([fazer login para ver a URL]) I've no idea on how to use my metamask wallet to the script for placing bids. if you guys have done this before please reach me out. Please bid only if you have done this before or have an idea of how to do this. this is the high priority job max budget - INR 4000

    €71 (Avg Bid)
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    4 ofertas

    Request details I am looking for a solidity developer that can help me finish a small project. The contracts should be simple solidity code and the job should be short duration. Will compensate well for a short term project. I am looking for an experienced solidity developer with smart contract expertise and a knowledge of the DeFi space. Deliverables -create two solidity smart contracts; optim...

    €550 (Avg Bid)
    €550 Média
    8 ofertas
    Ethereum miner 6 dias left

    Looking for a skilled ethereum miner have a $75,000 set up ready to go Candidate must be based in the USA, priority given to Florida.

    €43 / hr (Avg Bid)
    €43 / hr Média
    5 ofertas

    Looking for an experienced developer for a 1–3-month project. Must be experienced with Deep Reinforcement Learning technique and algorithm, Blockchain development and Cloud Computing. The project is to implement a proof-of-concept solution, the attached file has the detailed idea that need to be implemented. We need to implement the same concept but with some modifications: 1- We need to use...

    €2269 (Avg Bid)
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    14 ofertas

    RoboCab is looking for a talented developer to work directly with the CEO to build the business using Blockchain, cryptocurrency, NFTs and Artificial Intelligence. Our company operates similar to Uber and UberEats, so your first task would be to create a similar platform using Blockchain and our cryptocurrency.

    €482 (Avg Bid)
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    16 ofertas

    I have a cryptocurrency exchange site that is coded in javascript and react it uses web3 requests to communicate with private blockchain on ganache. I have built orderbook system but we need matching engine. Matching engine - Must run on backend - Can be nodejs, python or any other language - must be able to handle multiple tokens/contracts (1-6000 contracts) - must be able to log and execute ord...

    €347 (Avg Bid)
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    14 ofertas
    Blockchain developers required 5 dias left
    VERIFICADO

    Looking for blockchain developers who have experience and already developed pancake swap fork. solana and cardano experience is plus plutus and heskle knowledge is plus point. please bid only individual freelancers who are ready to start work immediately.

    €2033 (Avg Bid)
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    6 ofertas

    I need help with the following: UI integration Bot integration for auto harvest Test smart Contract

    €615 (Avg Bid)
    €615 Média
    8 ofertas
    Crypto Exchange 5 dias left
    VERIFICADO

    I want the github repository I will give below to be fully installed and the backend settings to be improved [fazer login para ver a URL]

    €1063 (Avg Bid)
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    24 ofertas
    build me a dapp 5 dias left

    first thing first the colors and logo I have to add the icon here the icon have the colors I want you to use and the logo is for the website I want you to make the classic swap but with a little bit of a twist we could add a graph like in dodo [fazer login para ver a URL] but I want the swap to be a little bit more to the pacnacswap side just more smooth has for the lottery I like the pancakeswap ...

    €43 / hr (Avg Bid)
    €43 / hr Média
    1 ofertas

    first thing first the colors and logo I have to add the icon here the icon have the colors I want you to use and the logo is for the website I want you to make the classic swap but with a little bit of a twist we could add a graph like in dodo [fazer login para ver a URL] but I want the swap to be a little bit more to the pacnacswap side just more smooth has for the lottery I like the pancakeswap ...

    min €43 / hr
    min €43 / hr
    0 ofertas

    I need a professional person to code real time forex trading patterns detector in trading view. Here is a reference video of what I need. [fazer login para ver a URL]

    €781 (Avg Bid)
    €781 Média
    4 ofertas

    Hi, I'm looking for a blockchain developer who's able to build Smart Contracts with Etheruem 2.0 client, It will be developed on Kusama blockchain network. Kusama blockchain is deployed on Shiden blockchain network (Smart contract needs to be developed on there) Would you be able to assist?

    €889 (Avg Bid)
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    15 ofertas

    Artigos da Comunidade dos Principais Blockchain