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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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    239 trabajados encontrados, precios en USD

    Estamos necesitando el desarrollo de un exchange decentralizado para nuestro proyecto.

    $2195 (Avg Bid)
    $2195 Oferta promedio
    24 ofertas

    Somos NFTcoins. ([iniciar sesión para ver URL]) y estamos en la busqueda de un programador blockchain para la creacion de nuestra plataforma de marketplace NFT. Actualmente nuestro token nativo (NFTCOINS) se puede comprar por Pancakeswap.

    $1223 (Avg Bid)
    $1223 Oferta promedio
    13 ofertas

    Hola, estamos buscando un programador serio y con experiencia en Solidity (Etherum) para desarrollar un contrato inteligente BEP20. El contrato inteligente debe tener las siguientes características: Cada transacción cobraría 3% de comisión y se distribuirán de la siguientes forma: 1% entre los holders 1% se envía una dirección especifica (marke...

    $318 (Avg Bid)
    $318 Oferta promedio
    7 ofertas

    Necesito un smart contract creado en la red de TRON que tenga las caracteristicas de transacciones esto llevado con una token para realizar pagos de productos en mi web y que se registren, tambien necesito que el inicio se secion sea por la wallet y que mediante una consulta pueda registrar esa wallet en una base de datos mysql para no tener replicados de usuarios dentro de la web con los mismos d...

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

    I need some code that can monitor a blockchain's mempool and buy and sell coins / tokens (through quicknode).

    $304 (Avg Bid)
    $304 Oferta promedio
    5 ofertas

    i post this job before .but proposals Mr David G.@davidgill198 didnot finish job on [iniciar sesión para ver URL] i should try to buy again . This is not big project .payment is less than 750 usd. Job detail 1Custom burning coin with test Verify Your Contract Source Code. 2 list it on Pancakeswap 3 custom rule Pancakeswap slippage tolerance 50% 20% go to dark hole or destory 30 % for luck...

    $612 (Avg Bid)
    $612 Oferta promedio
    4 ofertas

    Hello I am finding developer who is experienced in Smart Contract.

    $425 (Avg Bid)
    $425 Oferta promedio
    4 ofertas
    crypto website 6 días left
    VERIFICADO

    I need this pages developed I also need a content writer to write out the contents and the faq sessions I also need you to add api from changeling to enable to enable the purchase of Bitcoin and other coin Check [iniciar sesión para ver URL] it’s a perfect example of what you are creating

    $541 (Avg Bid)
    $541 Oferta promedio
    28 ofertas

    bridge erc20 to binance smart chain for use on pancakeswap

    $176 (Avg Bid)
    $176 Oferta promedio
    9 ofertas

    I want to bridge and new erc-20 token to binance smart chain need this to list on pancakeswap

    $160 (Avg Bid)
    $160 Oferta promedio
    2 ofertas

    PROJECT SCOPE: Build a website with similar user -account functionalities to BNB JEX. The website WILL NOT handle any live trading, and will be used only for educational courses, Limited Functions, No paymentgate.

    $777 - $1125
    Destacado Sellado
    $777 - $1125
    23 ofertas

    ***********Please Read Proposal First*********** Hello, social media marketers. I want to discuss our project related to ICO marketing. If you are serious, bid with your favorite number. If not, I regard you as a SPAM. Looking forward to hearing from you

    $1312 (Avg Bid)
    $1312 Oferta promedio
    11 ofertas

    Ttfv is looking for an experienced blockchain developer for a 3–6-month project? You will work with a team of international experts for this project. This contract includes multiple sub-projects. Must be experienced with EOS, WAX, react, next.js. We have specifications available for applicants to review upon request. To be a best fit for this project you need: Ability to communicate clear...

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

    YOU SHOULD HAVE EXPERIENCE IN THIS FIELD. DON'T SPAM WITH PROPOSALS IF YOU DON'T HAVE ENOUGH EXPERIENCE *Looking for an absolute expert and price is negotiable depending on what you are bringing to the table. The more features and equipment the bot has, the more I am willing to pay. I need this bot to work preferably on MacOS, although it would work on Windows as well. Work...

    $4416 (Avg Bid)
    $4416 Oferta promedio
    3 ofertas
    uniswap pancake sniper bot 6 días left
    VERIFICADO

    DM me for the provided functions , I would like this to work on a deployable smart contract to interact swaps with needs tow work with unicrypt dxsales etc.

    $1191 (Avg Bid)
    $1191 Oferta promedio
    3 ofertas
    blockchain developer 6 días left
    VERIFICADO

    My client find a blockchain developer. You will be responsible for blockchain technologies, coin concept, consensus and other terms. Also coin setup from github, node setup etc.

    $16 / hr (Avg Bid)
    $16 / hr Oferta promedio
    15 ofertas

    Crpyto Tokenomics Expert Looking for someone who is able to launch tokens on BNB and on ETH.

    $57 (Avg Bid)
    $57 Oferta promedio
    8 ofertas

    Hello I am looking for Blockchain and React developer You should have deep knowledge in Blockchain and React DApp: bonus

    $1156 (Avg Bid)
    $1156 Oferta promedio
    4 ofertas

    I Need a flash loan deployed I have the contract src code just need help to review it quickly then deploy it on Remix it's a BSC contract so need to be available and aware of how to work with BSC you need the experience to help remotely on this look forward to working with you.

    $37 / hr (Avg Bid)
    $37 / hr Oferta promedio
    10 ofertas

    I am looking to build a centralized crypto currency exchange with some basic features like spot sale & swap. The frontend will have charts / order book data / pending order data etc. Anybody who has some experience in same or who understands how it can be build, can quote for project. Heading should contain 'Jai shree Ram' to check if you have read the entire requirement.

    $1661 (Avg Bid)
    $1661 Oferta promedio
    6 ofertas

    hello have you heard of chia coin mining? it's proof of space based mining system use to complete transactions on blockchain. we need windows based server with max cpu core and max ram available for server with 200 Tib ssd+hhd storage. my budget is flexible depending on how much storage space you can manage on cloud

    $3944 (Avg Bid)
    $3944 Oferta promedio
    3 ofertas

    We need a content writer to write our Crypto White Paper and Content for the site must has experience.

    $132 (Avg Bid)
    $132 Oferta promedio
    13 ofertas
    NFT ecosystem 6 días left

    This project is centred on the NFT concept. SCOPE: - Build an NFT ecosystem that allows user to purchase and hold on-platform and on-wallet various NFTs. More than happy to go over all the details with the freelancers I select. Thank you for bidding.

    $820 (Avg Bid)
    $820 Oferta promedio
    10 ofertas

    Our company is launcing a new non-fungible token (NFT) project. We are looking for an experienced Blockchain/Smart Contract Developer to help write, deploy and maintain the Ethereum ERC-721 smart contract for this project. **What you will do:** - Write, deploy and maintain an Ethereum ERC-721 smart contract **What you need:** - Experience writing, deploying and maintaining smart contracts on the...

    $22 / hr (Avg Bid)
    $22 / hr Oferta promedio
    23 ofertas

    I want to developer to create NFT Market Place with TRC721. TRC721 is the standard on building in Tron Blockchain. Freelancer create token on using TRC721. I have developed already NFT market place Frontend. so he must connect with new token and run on flow platform. Before bid my proposal, write "TRC721 NFT" first. Plz feel free to bid my project.

    $250 - $750
    Sellado
    $250 - $750
    3 ofertas

    I am looking for someone how can create a video tutorial how to create a working bsc yield farm fork with a connected and working bep20 token

    $114 (Avg Bid)
    $114 Oferta promedio
    2 ofertas
    Social reward system 6 días left
    VERIFICADO

    It will be a system that rewards users attention across all social media (Facebook, Twitter, Instagram etc) which will be integrated on our blockchain mechanism, "tokenizing everything". This token when earned by our registered and verified members can be withdrawn and exchange to other cryptocurrency like BNB, ETH,BTC, or even Fiat as the case may be. And will are modeling this websit...

    $9 - $299
    Sellado
    $9 - $299
    2 ofertas

    I want to customize: [iniciar sesión para ver URL] It has 3rd party python interface: [iniciar sesión para ver URL] It also has a graphql interface (official) [iniciar sesión para ver URL] What I want is: Create an http/web socket API to call two functions: 1) Create a new transaction 2) scan realtime for any new incoming transaction to a given address, and emit an event on...

    $677 (Avg Bid)
    $677 Oferta promedio
    2 ofertas
    Fork of BSC Yield Farm 6 días left
    VERIFICADO

    I am looking for someone how can create a bsc yield farm fork

    $190 (Avg Bid)
    $190 Oferta promedio
    10 ofertas

    I Need a flash loan deployed I have the contract just need help to review it quickly then deploy it on Remix it's a BSC contract so need to be available and aware of how to work with BSC you need the experience to help remotely on this look forward to working with you.

    $33 / hr (Avg Bid)
    $33 / hr Oferta promedio
    5 ofertas

    We will like involve you in our new project... It's a simple website that will deal with users social reward system... that is It will be a system that rewards users attention across all social media (Facebook, Twitter, Instagram etc) which will be integrated on our blockchain mechanism, "tokenizing everything". This token when earned by our registered and verified members can be...

    $488 (Avg Bid)
    $488 Oferta promedio
    13 ofertas

    We need a modular multi-level affiliate program smart contract that we will execute our self on the Ethereum blockchain and possibly other blockchains (Polkadot, Cardano ect’….). We intend to execute the same contract a few times for a few deferent products and need the code must be well documented to allow use to make the necessary adjustments. We will need the option to set a fixe...

    $1318 (Avg Bid)
    $1318 Oferta promedio
    16 ofertas
    Multi Binance Account Trading 6 días left
    VERIFICADO

    Part A (Reading Futures API) 1. To be able to extract current trading positions or trigger notifications some way 2. To listen for and extract close trading positions or trigger notifications some way Part B (Telegram API) 1. Using the extracted trading positions in Part A, preformatted a telegram post to share this trade info such as Buy BTCUSDT at xxx price, SL: XXX, TP: XXX. Part C (Fu...

    $2125 (Avg Bid)
    Acuerdo de Confidencialidad
    $2125 Oferta promedio
    2 ofertas
    restaurant ERP app 6 días left
    VERIFICADO

    Server/Order taker key in customer order,send to kitchen, cashier and backoffice Manager can monitor stock levels and send replace food supplies request to backoffice restaurant staff can log in to report to work and clock off

    $531 (Avg Bid)
    $531 Oferta promedio
    50 ofertas

    please check details carefully hello, everyone. I am a businessman, just I am an investor. now i am looking for traders who can increase my incoming. I will make an investment of at least 5000$ for trading , then I will add 3 btc after your trading is good. in finally, I can add 20btc totally if I confirm that you can make much more money by trading. if you are interested in my offer, please bid. ...

    $705 (Avg Bid)
    $705 Oferta promedio
    2 ofertas
    blockchain expert needed -- 4 6 días left
    VERIFICADO

    please check details carefully hello, everyone. I am a businessman, just I am an investor. now i am looking for traders who can increase my incoming. I will make an investment of at least 5000$ for trading , then I will add 3 btc after your trading is good. in finally, I can add 20btc totally if I confirm that you can make much more money by trading. if you are interested in my offer, please bid....

    $470 (Avg Bid)
    $470 Oferta promedio
    5 ofertas

    I want to add UNICRYPT's LP locking function to my SWAPSITE. Need professional work. Please do nice work.

    $689 (Avg Bid)
    $689 Oferta promedio
    14 ofertas
    blockchain expert needed -- 2 6 días left
    VERIFICADO

    please check details carefully hello, everyone. I am a businessman, just I am an investor. now i am looking for traders who can increase my incoming. I will make an investment of at least 5000$ for trading , then I will add 3 btc after your trading is good. in finally, I can add 20btc totally if I confirm that you can make much more money by trading. if you are interested in my offer, please bid....

    $375 (Avg Bid)
    $375 Oferta promedio
    2 ofertas
    blockchain expert needed 6 días left
    VERIFICADO

    please check details carefully hello, everyone. I am a businessman, just I am an investor. now i am looking for traders who can increase my incoming. I will make an investment of at least 5000$ for trading , then I will add 3 btc after your trading is good. in finally, I can add 20btc totally if I confirm that you can make much more money by trading. if you are interested in my offer, please bid....

    $464 (Avg Bid)
    $464 Oferta promedio
    7 ofertas
    solidity smart contract file 6 días left
    VERIFICADO

    I need a smart contract written so far i have a prototype that I have written but would like to speed up the process by outsourcing the work. Deliverables I need a smart contract written in solidity and delivered as a txt file with the following criteria: TOTAL SUPPLY - 2,971,215,073 NAME - Capstone Holdings TICKER - STONES DECIMALS 18 WHITELIST - Whitelist of addresses excluded from fee and rewa...

    $613 (Avg Bid)
    $613 Oferta promedio
    3 ofertas

    backend integration with demo smart contract on test net + wallet implementation solidity, ABI, react.js, Yarn, node.js, wallet implementation

    $439 (Avg Bid)
    $439 Oferta promedio
    9 ofertas

    need a professional with complete knowledge with blockchain technology and Dapp buliding

    $1620 (Avg Bid)
    $1620 Oferta promedio
    6 ofertas
    Crypto node setup and interface 5 días left
    VERIFICADO

    Provide either a Rest API or PHP library to perform transfer functions and monitor cryptocurrency blockchain. The set of cryptocurrencies to support are: - binance chain BNB - cardano ADA - polkadot DOT - ripple XRP - litecoin LTC - chainlink LINK - filecoin FIL You may propose a subset from the crypto list that you are able to do. Functions required: 1) transfer crypto from wallet to a destinati...

    $3162 (Avg Bid)
    $3162 Oferta promedio
    23 ofertas

    Kindly if you are Freelancer Developer then only Bid "Don't place bid Company"

    $10 - $750
    Sellado Acuerdo de Confidencialidad
    $10 - $750
    5 ofertas

    This project consists of 2 major components: TL;DR: 1. Write a simple nodejs router script that will route ethereum's JsonRpc protocol to different backends based on the request. 2. Setup a bash script that will install, configure and startup individual `geth` instances based from s3 that #1 will be routed too. Details: 1. I have an archive node that is split into slices. Each slice has a p...

    $1250 (Avg Bid)
    $1250 Oferta promedio
    5 ofertas

    Need to generate 10k images from a combination of premade artwork, and mint them on the blockchain. Example: [iniciar sesión para ver URL] Looking for a boilerplate solution to allow addition or adjustment of the character part images.

    $21 / hr (Avg Bid)
    $21 / hr Oferta promedio
    12 ofertas

    Looking for go programmers with a core understanding of Ethereum protocol and design. Note: This is NOT contract/ICO/Solidity work. This is Ethereum CORE protocol code changes. This is changing the functionality of Ethereum core code itself. If you do not understand the concept of core protocol code then you should not apply.

    $21 / hr (Avg Bid)
    $21 / hr Oferta promedio
    3 ofertas
    Block chain project 5 días left
    VERIFICADO

    I need a new website. I already have a design, I just need you to build it. Block chain project

    $222 (Avg Bid)
    $222 Oferta promedio
    18 ofertas

    Requirements: MUST already be familiar with Monero blockchain Stealth Address and RingCT cryptography system and understand cryptographic concepts. You will be assisting in converting core code for use on another blockchain. All discussions, chat and work will be done on Discord. To be considered, please tell me you background of working and knowledge with Monero core protocol code. Have you e...

    $2750 (Avg Bid)
    $2750 Oferta promedio
    7 ofertas

    We are hiring a Ethereum core devleoper urgently for our new blockchain trading project We are hiring only experts, Please apply with your past experience thanks

    $38 / hr (Avg Bid)
    $38 / hr Oferta promedio
    16 ofertas