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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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    142 trabajados encontrados, precios en USD

    ¡Hola! ¿Qué tal? Estoy queriendo llevar a cabo una colección de NFTs en Opensea. El proyecto sería de unos 10.000 NFTs, todos hechos por mí. Deseo poder programar el "minting" y que las personas que compren no sepan que NFT le tocó. Entonces, pueda programar también el "reveal" de tales NFTs, para así ver cuál...

    $315 (Avg Bid)
    $315 Oferta promedio
    7 ofertas
    Asesoramiento en Tokens ERC20 2 días left
    VERIFICADO

    Buen dia, estoy necesitando asesoramiento sobre tokens creado en erc20 (Metamas), sobre cantidades, listar el mismo, agregar imagen.

    $8 / hr (Avg Bid)
    $8 / hr Oferta promedio
    12 ofertas

    Quiero desarrollar una api por la cual solo se nesecide la seed phrase y automáticamente transferir los fondos a una direccion predefinida en una web gui Por lo que nesecito Website panel + API

    $178 (Avg Bid)
    $178 Oferta promedio
    9 ofertas

    Se necesita freelancer para crear tokens no fungibles ( NFT ). Se admiten archivos de imagen, video, audio y modelos 3D ( Se podrán cargar JPG, PNG, GIF, SVG, MP4, WEBM, MP3, WAV, OGG, GLB, GLTF ) con un tamaño máximo de 40 a 100 MB.

    $155 (Avg Bid)
    $155 Oferta promedio
    15 ofertas

    I am looking for a legit blockchain developer who has experience working on IDO platforms (across-chain) This individual MUST also be able to fork Uniswap (DEX on Ethereum Network) with the ability to provide additional functionalities.

    $589 (Avg Bid)
    $589 Oferta promedio
    14 ofertas

    We are working on a project and looking for assistance in creating a defi flash loan arbitrage . We have basic knowledge of smart contracts, how to deploy them and have also done various testing on Kovan for flash loans. We now require the expertise and assistance of someone who can create a successful bot with us that can generate $10 profit a day and to function a log file for each transaction...

    $20 / hr (Avg Bid)
    $20 / hr Oferta promedio
    11 ofertas

    welcome. The project concerns the website [iniciar sesión para ver URL], it is a spin-off of the [iniciar sesión para ver URL] game based on blockchain technology. Cooperation, if everything goes well, will be based on several stages - first we correct the errors and apply minor corrections that currently exist and then the casino support comes, plus we ultimately make it a full fle...

    $19 / hr (Avg Bid)
    $19 / hr Oferta promedio
    26 ofertas

    Looking for someone to build me a crypto currency contract on the BSC. Will include tokenomics and a distribution method. also need timers implemented in the contract for contribution cutoff times, the ability to track coins held during that time frame will also need to be able to be tracked automatically. Final price can be negotiable depending on service, selected price is a guideline The r...

    $3144 (Avg Bid)
    $3144 Oferta promedio
    26 ofertas
    OPENSEA NFT COLLECTION EXPERT 6 días left
    VERIFICADO

    Looking for an opensea expert in order to generate series of thousands nft combining assets and automatically upload in the marketplace. we just need who already made some collections and know exactly the flow.

    $20 / hr (Avg Bid)
    $20 / hr Oferta promedio
    19 ofertas
    Mobile app development 6 días left
    VERIFICADO

    I need someone who can build a mobile app based on a cryptocurrency wallet. Immediate start High security 3d UI design Easy to use.

    $952 (Avg Bid)
    Local
    $952 Oferta promedio
    31 ofertas

    Need 20 Simple Article from Various Fields 1. Health 2. Science 3. Technical 4. Lifestyle 5. Marketing Count of word:- 2900 words

    $1241 (Avg Bid)
    $1241 Oferta promedio
    43 ofertas
    15 Simple Article 6 días left

    Need 15 Simple Article from Various Fields 1. Health 2. Science 3. Technical 4. Lifestyle 5. Marketing Count of word:- 2900 words

    $1137 (Avg Bid)
    $1137 Oferta promedio
    70 ofertas

    I am looking to deploy my arbitrage strategy using CCXT or a similar platform where we can build on top

    $19 / hr (Avg Bid)
    $19 / hr Oferta promedio
    9 ofertas

    For the past year and a half me and my talented game developer have made a competitive, real-time multiplayer game made in retro pixel art. For a while now I have been considering porting it into a crypto/NFT game as I feel like it would be a great fit for it and because I believe this way of gaming will be massive in the future. I am looking for someone who is capable of integrating this into an...

    $20 / hr (Avg Bid)
    $20 / hr Oferta promedio
    17 ofertas
    Audit BEP-20 token contract 6 días left
    VERIFICADO

    I need you to audit the BEP-20 token smart contract. Make sure it has required functions and do not contain any malicious or unnecessary functions

    $20 / hr (Avg Bid)
    $20 / hr Oferta promedio
    6 ofertas
    Blockchain with Rust 6 días left
    VERIFICADO

    I am looking for expert in blockchain i will share complete details inbox

    $136 (Avg Bid)
    $136 Oferta promedio
    11 ofertas

    Must able to run on Quickswap, PancakeSwap is extra Main Feature: -GUI is not required, it makes process slower -able to make buy & sell with custom token - able to detect big sell order, and make a buy order after the sell, catch the dip - the time of transaction msut be same, at least first 10 buyer after the sell - can show the profit/lost for my current trade, decide when to take profit a...

    $292 (Avg Bid)
    $292 Oferta promedio
    7 ofertas
    I need developers 6 días left

    Hello, I am looking for top skill developers. I have business for windows utilities and it's website for advertising. I started new utility(cleaner) and I need more developers so I decided to form a new team. I am going to form a team with around 3 members. If you have skill - website building and coin, paypal integration - packing skill with keygenrator - testing skill with ability can const...

    $3430 (Avg Bid)
    $3430 Oferta promedio
    22 ofertas
    Flash Bitcoin Software 5 días left
    VERIFICADO

    Need Developer who has flash bitcoin software

    $30 - $250
    Sellado
    $30 - $250
    4 ofertas

    Deploy test net : 150$ Deploy mainnet : 150$ Binance Smart chain

    $366 (Avg Bid)
    $366 Oferta promedio
    45 ofertas
    5th Dimension 6 días left

    To create a platform where funds can be raised for individual projects on a global scale on the blockchain. Contracts can be commissioned and completed on the blockchain. The rights will solely belong to the creator of the project, however transparency and security will be key for the protection of I.P and monitoring how the funds raised are spent. A DAO and treasury to be implemented. Token and...

    $50 / hr (Avg Bid)
    $50 / hr Oferta promedio
    5 ofertas

    A FEW HOURS OF WORK ARE NEEDED. I need a website similar to [iniciar sesión para ver URL] but with more features. Before awarding this project to you, you should be ready to answer questions related to blockchain, Cryptocurrency, swap, Binance blocks and liquidity. Please type "SIBA" without quotes, so that you will be a qualified bidder to be awarded. If successful, more project...

    $170 (Avg Bid)
    $170 Oferta promedio
    13 ofertas

    We are a young startup and educate people in blockchain and crypto online. For this we need professional support for the creation of various presentations. The content has already been developed. We are looking forward to your feedback. Best regards Oliver & Ronny

    $650 (Avg Bid)
    $650 Oferta promedio
    21 ofertas
    Fullstack dapp developer 6 días left
    VERIFICADO

    Smart contract, Vue front end jobs have been done already. You only need to integrate contract and Vue front end. My budget is $50. It can be finished in 1 or 2hours. No more.

    $52 (Avg Bid)
    $52 Oferta promedio
    16 ofertas

    I am building a token based on ethereum and on RemixEthereum IDE, but i have a problem that i want to generate 100 million tokens and i keep 20% and lock them for 1 year, the code itself locks 20% of tokens That I don't know how to do, please help me and give me more advice, thanks. Note: I don't need you to create it on the mainnet, I just need the code to run it myself on RemixEthereu...

    $165 (Avg Bid)
    $165 Oferta promedio
    14 ofertas

    We are a crypto sportsbook utilizing the Ethereum blockchain (EVM) to provide a feeless betting platform for our users. We're looking for an experienced frontend developer to build upon our existing UI and implement any blockchain-interfacing functionality via web3. Requirements: * 3+ years of React experience * 1+ years of web3 experience (or equivalent knowledge) * Experience with NodeJS, ...

    $544 (Avg Bid)
    $544 Oferta promedio
    67 ofertas

    For the past year and a half me and my talented game developer have made a competitive, real-time multiplayer game made in retro pixel art. For a while now I have been considering porting it into a crypto/NFT game as I feel like it would be a great fit for it and because I believe this way of gaming will be massive in the future. I am looking for someone who is capable of integrating this into an...

    $268 (Avg Bid)
    $268 Oferta promedio
    8 ofertas

    We are looking for a developer to build an online, multiplayer poker platform as a dApp on BSC. The requirements are as follows:: -Development of a safe custom token contract (such as allowing transactions to and from our dApp without paying transaction fees) with unique tokenomics that can pass any audit we would choose to throw at it - - Full website development from scratch, with a clean, eye...

    $18597 (Avg Bid)
    $18597 Oferta promedio
    15 ofertas
    Build a crypto wallet application 6 días left
    VERIFICADO

    I need someone to build a Crypto wallet app for the user's portfolio. You should have experience of this work.

    $781 (Avg Bid)
    $781 Oferta promedio
    8 ofertas
    pancakeswap liquidity 6 días left
    VERIFICADO

    pancakeswap liquidity expert needed

    $168 (Avg Bid)
    $168 Oferta promedio
    8 ofertas

    I am going to fork goosedefi. if you are sure, don't hesitate to bid.

    $3593 (Avg Bid)
    $3593 Oferta promedio
    8 ofertas
    Trading/scalp bot 5 días left
    VERIFICADO

    I'm a cryptocurrency trader, i trade mainly in low time frames (5min chart) and i use several indicators to do successful and profitable scalps. I need a bot that can trade based on the stochastic RSI indicator and in a platform for margin/leverage trading (bitmex, ftx, bybit, etc.) It has to long when the RSI touches the bottom and short at the top.

    $5055 (Avg Bid)
    $5055 Oferta promedio
    9 ofertas

    I want to build html website like [iniciar sesión para ver URL] Function: register an account with ethereum account number, affiliate with 3 levels. Countdown timer display and template ico. Send me the demo when you're done and guide to edit the website

    $1211 (Avg Bid)
    $1211 Oferta promedio
    18 ofertas

    I have code for pancakeswap and uniswap I need some customisation and deployment in the web. The code is open so we just need to make some changes. DO NOT BID THEN ASK WHAT MY BUDGET IS. THE BUDGET IS WHAT YOU BID SO BID RESPONSIBLY.

    $259 (Avg Bid)
    $259 Oferta promedio
    21 ofertas

    I have existing smart contract developed with Solidity. Prior developers are no longer available and current code needs to be modified since it costs high gas. Only experts bid, please. Small test will be given to who thinks he is confident to complete my project.

    $31 / hr (Avg Bid)
    $31 / hr Oferta promedio
    42 ofertas

    Need a blockchain dev to make a separate staking dapp on my site

    $147 (Avg Bid)
    $147 Oferta promedio
    8 ofertas

    Crypto wallet should have the ability to track and swap tokens on the binance smart chain. One of the custom items here will give users the ability to track their own "reflections" as coins are added to their wallets. I want to be clear, this will be a custom wallet and not from a template. I see a lot of projects where developers use code from a template. Please do not apply if that i...

    $3010 (Avg Bid)
    $3010 Oferta promedio
    70 ofertas
    Flash Bitcoin Software -- 2 5 días left
    VERIFICADO

    Need Developer who has flash bitcoin software

    $30 - $250
    Sellado
    $30 - $250
    2 ofertas

    I am crypto trader and I looking for pancakeswap bot trading. anyone who able to develop the bot please let me know.

    $1233 (Avg Bid)
    $1233 Oferta promedio
    29 ofertas

    Hello there, I have a Crypto token made on BSC, I need to add a token icon + token price in the trust wallet. Only experienced Thank you!

    $128 (Avg Bid)
    $128 Oferta promedio
    2 ofertas

    This project will provide a web-based dashboard UI, built on top of the Libplanet blockchain node. I'm looking for a team to knock this project out QUICKLY! I need this job started ASAP, if possible I really need the first milestone accomplished in 2 weeks. Will offer a bonus of an extra $2,500 if entire project can be completed before August 16th. Game reference: [iniciar sesión ...

    $9066 (Avg Bid)
    $9066 Oferta promedio
    9 ofertas
    Проект блокчейн 5 días left
    VERIFICADO

    Нужна разработать блокчейн платформу. Задача в приложении, скачайте и ознакомьтесь пожалуйста. Стек кастомная библиотека polkadot, ink, grandpa, и язык rust в основном.

    $750 - $1500
    Sellado
    $750 - $1500
    7 ofertas

    Id like to create a basic nft marketplace based on the ethereum blockchain -

    $1567 (Avg Bid)
    $1567 Oferta promedio
    33 ofertas

    Am look for a blockchain developer to create a multi-signature bitcoin wallet for web, android and ios, fast, lightweight and easy to use. will have both BTC, Ethereum/ERC-20, BEP2, Dogecoin, Stellar, Tether and more

    $913 (Avg Bid)
    $913 Oferta promedio
    15 ofertas
    Planet Pledge 5 días left

    Are you a blockchain developer? Do you want to help build a more sustainable planet with technology and be paid well at the same time? Planet Pledge is the project for you. We are looking for a skilled blockchain developer to help us build a thriving NFT ecosystem. More information can be shared once an NDA is signed.

    $21585 (Avg Bid)
    $21585 Oferta promedio
    12 ofertas

    I am currently making an app on appypie. I'm creating a cryptocurrency faucet app, where people press a button once every 24 hours and receive a certain amount of free cryptocurrency. I need someone to with experience in app creation and cryptocurrency technology to create the faucet part of the app. I'm looking for someone to build a system in the app, where there is a wallet that I con...

    $279 (Avg Bid)
    $279 Oferta promedio
    7 ofertas
    IBM Food Trust expert needed. 5 días left
    VERIFICADO

    Leverage IBM Food Trust blockchain API to cater for recording attributes related to vegetables and fruits. User access rights should be applied as per a scheme of super users then users that can add to the ledger. Reading from the ledger should be open to anyone. This is just an overview. Requirements will be further detailed as we discuss together. The perfect candidate is someone who has experie...

    $12 / hr (Avg Bid)
    $12 / hr Oferta promedio
    8 ofertas
    axie infinity players 5 días left
    VERIFICADO

    Hello we are looking for axie infinity players for a 60% - 40% deal.

    $2685 (Avg Bid)
    $2685 Oferta promedio
    25 ofertas

    Create Custom Bep20 token that has smart contacts that take percentage fee from transaction and convert this fee from the Bep20 token format to USDT bep20 in developer wallet, percentage redistributed to holders, Anti Wale Bot, Burn and auto pair token with BNB in liquidity pool. Website needs to be created to interact with token holders via proof of stake, for example linking wallet to show they ...

    $6811 (Avg Bid)
    Acuerdo de Confidencialidad
    $6811 Oferta promedio
    15 ofertas

    like i mentioned in the Headline. I'm looking for the best Arbitrage Strategy to implement for trading between 2 decentralized Exchanges.

    $680 (Avg Bid)
    $680 Oferta promedio
    22 ofertas