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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    I need someone who can make a ecr20 coin and a ico website / platform. Please contact me if you have questionnaires.

    $235 (Avg Bid)
    $235 Oferta medie
    8 oferte
    INMOBLOCKCHAIN 6 zile left

    quiero aplicar la tecnología blockchain a mi negocio de intermediación y construcción de propiedades .

    $17 / hr (Avg Bid)
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    3 oferte

    We need to make changes in our solidity project. And it will be deployed in Matic Network. Note: Experience in github is must and developer must have a github account.

    $746 (Avg Bid)
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    3 oferte

    I looking gor Hyperledger Fabric Blockchain Spring boot MongoDB Expert to build Backend REST API, SmartContracts(ChainCode), Blockchain networks

    $548 (Avg Bid)
    $548 Oferta medie
    15 oferte

    Es necesario desarrollar de cero smart contract de ethereum, blockchain basados en solidity.

    $20 / hr (Avg Bid)
    $20 / hr Oferta medie
    9 oferte

    Needs to detect that transaction gas price is far too low compared to average gas price and that it will not go through so it does not try to buy and sell based on a bad transaction. Needs to know if the transaction will be filled in the block meaning the transaction won't get cancelled and the code now buys and sells a useless token because no profitable transaction went through. Needs to be...

    $2 - $8 / hr
    $2 - $8 / hr
    0 oferte

    I would like a project designed to find transactions for a designated token on uniswap using an ethereum node and if the transaction is profitable, to automatically enter in before such transaction goes through, and once that transaction goes through, to automatically sell the token for a profit.

    $1625 (Avg Bid)
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    11 oferte

    I am seeking an Application Developer with skills that Exemplifies all the skills Noted below, you must have PROOF of your work to be considered with excellent reviews. 1. All source code must be commented and explain what it does, NO Exceptions 2. The Following skills are required: a. Full Stack Web Technologies b. HTML5 c. CSS3 d. JavaScript e. Python Flask – f. PWA Flask ...

    $750 - $1500
    Sigilat Acord de confidenţialitate
    $750 - $1500
    15 oferte

    Please only apply if you know what you are doing | NO AGENCIES please!!!! I am looking for a software developer with experience working with Boolean Satisfiability (SAT) and Data mining experience for creating a bitcoin mining application. I red this paper very recently: [conectează-te pentru a consulta linkul URL] and I need to develop a new SAT-based bitcoin miner similar to this one: [conec...

    $458 (Avg Bid)
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    2 oferte
    Crypto Site 5 zile left

    ¡Hola! Soy inversor en la industria de las criptomonedas desde [conectează-te pentru a consulta linkul URL] gente en mi pais lo sabe y me llaman para vender o comprar algunas criptomonedas, usando fiat. Dicho esto, quiero crear un sitio web para hacerlo más grande y más profesional. Lo que necesito es un sitio web con las siguientes cosas 1- Iniciar sesión para usuario...

    $804 (Avg Bid)
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    12 oferte
    Crypto Website 5 zile left

    Hi! I am Civil Engineer, but also an investor in the crypto industry since 2017. So, a lot of people here knows that and they call me to sell or buy some cryptocurrencies, using fiat. Saying this i want to build a website to make it bigger and more professional. What I need is a website with the following things 1- Login for users and also with 2step verification 2- A section where you can send ...

    $1522 (Avg Bid)
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    22 oferte

    I want someone to write a blockchain smart contract for me on the basis of an algorithm I provide.

    $8 (Avg Bid)
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    3 oferte

    HTML site is complete and will begin backend job this month. Project is about P2P crypto trading and will have many more specific features than current mainstream sites. I traded a lot and know too many painpoints for such industry. If you have successful experience on ICO,IEO,STO or related projects,pls feel free to contact me.

    $12 / hr (Avg Bid)
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    5 oferte

    The program btcrecover implements wallet password cracking for a variety of bitcoin wallets but not coinomi. Looking for someone to implement this for coinomi's AES wallet password NOT the seed phrase recovery. [conectează-te pentru a consulta linkul URL] Seed Phrase (Mnemonic) Recovery for the following wallets Electrum (1.x, 2.x, 3.x and 4.x) (For Legacy and Segwit Wallets. Set --bip...

    $581 - $1162
    Sigilat Acord de confidenţialitate
    $581 - $1162
    20 oferte

    Hey I am looking for someone who can help me in understanding 3 projects in a better way. These projects are ChainLink Dune Analytics The Graph I want to know what is the main differences and common things between [conectează-te pentru a consulta linkul URL] give you more details on the chat.

    $30 - $250
    $30 - $250
    0 oferte

    I would like a tutorial on building a blockchain explorer (including node and API)

    $14 - $27
    $14 - $27
    0 oferte

    **********************PLEASE READ ALL BEFORE MAKING BID*************************** Hello dear freelancer. Me and a friend have to hire a developer to setup a website for us as time is running to fast for us to do it ourselves as we are starting a new business. Must be; PHP,CSS,HTML,PERSONAL BLOCKCHAIN <------------ ***THESE ARE IMPORTANT*** JAVASCRIPT IS 100% UNWANTED AND SHALL NOT BE USED ...

    $600 (Avg Bid)
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    36 oferte

    Need 3 Ph/s or 3000 th/s of hashing power to mine 1 btc per day. That mean you would need 220 antminer s9's which gives an hashing power of #####, with an electricity bill of *****per day and ****** per year.(any other idea much welcomed) need expert that come out with other solution (latest or innovative idea), but again with same capacity with best budget price. welcome to discuss ...

    $2166 (Avg Bid)
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    6 oferte

    Need for Online Based System soft wear for Year-End University project. Please check the attached files for all details. Thank you.

    $463 (Avg Bid)
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    6 oferte

    Get data queries from blockchain smart contract The smart contract uses go language and you need to make a script that retrieves data EXPERIENCE WITH SMART CONTRACTS BLOCKCHAIN AND GOLANG A MUST

    $550 (Avg Bid)
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    16 oferte

    I need someone who can develop an ether-based stable token. Must be under ether smart contract.

    $11 / hr (Avg Bid)
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    6 oferte

    We need an experienced Solidity developer for long-term cooperation in order to write, analyze, study Ethereum Smart [conectează-te pentru a consulta linkul URL] are interested in long-term cooperation as we are constantly working in the blockchain field.

    $5000 - $10000
    $5000 - $10000
    0 oferte

    We need an experienced Solidity developer for long-term cooperation in order to write, analyze, study Ethereum Smart [conectează-te pentru a consulta linkul URL] are interested in long-term cooperation as we are constantly working in the blockchain field.

    $5000 - $10000
    $5000 - $10000
    0 oferte
    Need EOS blokchain expert 4 zile left
    VERIFICAT

    need EOS blockchain expert. He has to have great skill and experience about EOS and atomicassets. Only skilled code will be accepted for my project. Thanks

    $20 / hr (Avg Bid)
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    13 oferte

    I want exactly the same cryptocurrency payment gateway system as Plisio! I don't need frontend website development. I have project website . I need admin dashboard. Merchant dashboard and payment gateway system as plisio. For understanding our project let' go to the plisio net register at there and research in merchant dashboard. I will attach screenshots. Please check screenshots and th...

    $3083 (Avg Bid)
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    19 oferte
    EOS blokchain expert -- 2 4 zile left
    VERIFICAT

    need EOS blockchain expert. He has to have great skill and experience about EOS and atomicassets. Only skilled code will be accepted for my project. Thanks

    $21 / hr (Avg Bid)
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    11 oferte

    I own a small coffee shop and I want to make our own NFT. I understand the basics of how it works but need someone more experienced to build it and support it. I want to have 10 different types of collectable ‘coffee cup’ designs with some different attributes. Some attributes will be common and some rare. From what I understand, I’ll need you to create a smart contract, put it...

    $2550 (Avg Bid)
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    17 oferte
    EOS blokchain expert 4 zile left
    VERIFICAT

    need EOS blockchain expert. He has to have great skill and experience about EOS and atomicassets. Only skilled code will be accepted for my project. Thanks

    $24 / hr (Avg Bid)
    $24 / hr Oferta medie
    5 oferte

    E-Sports team is looking for a blockchain programmer to help in developing NFT Gaming project in writing whitepaper for the start and later developing platform. The whole idea and Beta Whitepaper is in the attachment. Password ''navi''.

    $7918 (Avg Bid)
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    4 oferte

    Hello We bought dtub script but don't know ask developer he could not install So here I need crypto or someone who build coins with eth or any others To implement bit coins or crypto to our app it has to be user friendly whatever your contracts or plans but it's gets to be decentralize like scott tube etc. The user interface must be user friendly and need use our app

    $140 (Avg Bid)
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    1 oferte

    We are in a search of a crypto geek who has all the knowledge to help us invest and retain profit. We are not looking for low-balls or freshers. We need someone who has the crude knowledge on where and how to invest to make returns. You must be an investor yourself, with over 10 years of experience in Bitcoin and the rest. crypto. You must not only show proofs of your market/street knowledge, but...

    $62 (Avg Bid)
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    3 oferte
    crypto platfrom 4 zile left
    VERIFICAT

    I need a Crypto platform like [conectează-te pentru a consulta linkul URL] You probably already know what I'm talking about if you Google a bit what Arbistar is. Looking forward to hearing from you

    $45 / hr (Avg Bid)
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    5 oferte

    We want to create an African Decentralized Crypto Currency Similar to Bitcoin, it is a store of value but is must be scalable. it must be very fast and should be able to be processed in large quantities per second. It is a store of value for all african countries. it can be used to trade freely in Africa. It is must be built on one of the decentralized platforms. If it is possible, along with the ...

    $573 (Avg Bid)
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    11 oferte

    We want to create an African Decentralized Crypto Currency Similar to Bitcoin, it is a store of value but is must be scalable. it must be very fast and should be able to be processed in large quantities per second. It is a store of value for all african countries. it can be used to trade freely in Africa. It is must be built on one of the decentralized platforms. If it is possible, along with the ...

    $509 (Avg Bid)
    $509 Oferta medie
    6 oferte
    Afripedia 3 zile left
    VERIFICAT

    Most official languages and literatures of all kind in Africa are written in western languages that colonised a specific country. Although indigenous languages are still spoken, yet they are not used in the main streams. Terminologies are disappearing and the new generation find it difficult learn African languages. The app intents to integrate African languages into the main streams by allowing ...

    $385 (Avg Bid)
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    5 oferte
    Ethereum Testnet App for NFT 3 zile left
    VERIFICAT

    I am working to create an app on ethereum. Bob is Selling an NFT for 1 Eth. Alex adds an arbitrary margin of 0.2 eth on this app and then posts a link for anyone to buy the NFT from him. When someone buys the NFT from Alex's link - 0.2 eth is paid to alex, 1 eth is paid to bob and the nft is deposited in the users account. I want a developer who can help me create this app on Kovan testnet...

    $141 (Avg Bid)
    $141 Oferta medie
    3 oferte

    I am working to create an app on ethereum. Bob is Selling an NFT for 1 Eth. Alex adds an arbitrary margin of 0.2 eth on this app and then posts a link for anyone to buy the NFT from him. When someone buys the NFT from Alex's link - 0.2 eth is paid to alex, 1 eth is paid to bob and the nft is deposited in the users account. I want a developer who can help me create this app on Kovan testnet...

    $228 (Avg Bid)
    $228 Oferta medie
    3 oferte

    We need an experienced Solidity developer for long-term cooperation in order to write, analyze, study Ethereum Smart [conectează-te pentru a consulta linkul URL] are interested in long-term cooperation as we are constantly working in the blockchain field.

    $250 (Avg Bid)
    $250 Oferta medie
    1 oferte

    Talented, experienced, innovative Blockchain engineers capable of showing diligent capacity in Rust. Each member is provided with 30 days for integration, testing, benchmark. The Tasks are to design a state-of-the-art, innovative DAG pruning mechanism (1*), dynamize the working of consensus protocol for heavy load(2), Complete Unstake, stake, balance send transactions and integrate WasmVM (3), co...

    $1036 (Avg Bid)
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    3 oferte
    Create Crypto Voucher 3 zile left
    VERIFICAT

    Hello Guys We are going to generate Crypto Voucher automatically for selling with 2 options : 1- Fixed Amount of Crypto (e.g. 0.001BTC) (it is normal way for buying Crypto) (Buyer can select any amount of crypto and then pay for it and get it) 2- Fixed Amount of Fiat value (e.g. 10$) (it is main topic) (Buyer can select any amount of Fiat that want to buy crypto and pay for it and get a vou...

    $2442 (Avg Bid)
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    13 oferte

    Need a bot that trades cryptocurrency using flash loans for arbitrage and algorithm trading. Will need to have the codes and the source so i can change later the parameters of any future trading in the bot. Must be fully automated the bot.

    $222 (Avg Bid)
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    4 oferte
    Blockchain internet platform 3 zile left
    VERIFICAT

    New blockchain internet platform that has crypto currency built in. New type of private key generation which is more secure. Each block will be a website/cpanel to which a user can upload files. Data limit per blocks and more blocks are required for additional data. All websites will require a free vanity domain which can be chosen and all will have the same extension (such as .com...) a private k...

    $6701 (Avg Bid)
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    10 oferte

    I am looking for offchain / external adaptor / pricefeed of few tokens & mcaps that arent available in ethereum ecosystem. Details of those tokens & mcaps would be shared one to one basis.

    $513 - $1025
    $513 - $1025
    0 oferte
    Algorand Wallet API Service 2 zile left
    VERIFICAT

    Hello, I need Algorand Wallet service for PHP or NodeJS You can check this link for BTC version.

    $569 (Avg Bid)
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    14 oferte

    We are a well funded Fintech/Blockchain company about to launch our first SaaS product, and we're looking for a social media marketing expert to join our team. You will understand how to engage with and inspire technical audiences and communities and be a savvy wordsmith with great graphic design skills. Key Info? 100% Remote (Timezone flexible with some APAC overlap) Immediate Start Approx...

    $19 / hr (Avg Bid)
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    15 oferte

    I'm looking good developer who can develop an exchange for the project.

    $787 (Avg Bid)
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    15 oferte

    Hi, we want to do a decentralized platform where users connect to the WEB3JS via wallet. They can issue, stake, add LP, launch new DeFi, NFT, lending, and things like that.

    $581 (Avg Bid)
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    17 oferte

    I am a PhD student and looking for online private tuition about writing a smart contract, deploying to blockchain and different scientific validation methods + benchmarking for any approach built on Blockchain. Scientific methods can include Petri-net, model-checking, and others open for suggestion. My preference goes to tutors based in the UK. The tuition sessions should no more than 9 hours in t...

    $18 / hr (Avg Bid)
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    3 oferte
    Custom Crypto Exchange 2 zile left
    VERIFICAT

    I want to create a crypto exchange platform geared toward Latin America. I also would like to resemble ninjatraders platform. It will only accept bitcoin and paypal.

    $777 (Avg Bid)
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    13 oferte
    Need help with a good DeFi idea 2 zile left
    VERIFICAT

    Need help with a good DeFi idea I only need help with the idea behind my defi project. No coding! If you come up with a good idea I will let you write my content for the defi project, the website, whitepaper etc

    $8 / hr (Avg Bid)
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    2 oferte

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