Blockchain Jobs

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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    69 份搜到的工作,货币单位为 USD

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

    $19 / hr (Avg Bid)
    $19 / hr 平均报价
    7 个竞标

    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 个竞标

    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.

    $1190 (Avg Bid)
    $1190 平均报价
    7 个竞标

    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
    加封 保密协议
    $750 - $1500
    13 个竞标

    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: [登录来查看链接] and I need to develop a new SAT-based bitcoin miner similar to this one: [登录来查看链接] Can you do this project - deve...

    $458 (Avg Bid)
    $458 平均报价
    2 个竞标
    Crypto Site 6 天 left

    ¡Hola! Soy inversor en la industria de las criptomonedas desde [登录来查看链接] 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 usuarios y también con verificaci&o...

    $804 (Avg Bid)
    $804 平均报价
    12 个竞标
    Crypto Website 6 天 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 ...

    $1108 (Avg Bid)
    $1108 平均报价
    15 个竞标

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

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

    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)
    $12 / hr 平均报价
    5 个竞标

    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. [登录来查看链接] Seed Phrase (Mnemonic) Recovery for the following wallets Electrum (1.x, 2.x, 3.x and 4.x) (For Legacy and Segwit Wallets. Set --bip32-path "m/0'/0" for...

    $581 - $1162
    加封 保密协议
    $581 - $1162
    20 个竞标

    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 [登录来查看链接] give you more details on the chat.

    $30 - $250
    $30 - $250
    0 个竞标

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

    $14 - $27
    $14 - $27
    0 个竞标

    **********************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)
    $600 平均报价
    35 个竞标

    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 ...

    $2300 (Avg Bid)
    $2300 平均报价
    5 个竞标

    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)
    $463 平均报价
    6 个竞标

    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

    $549 (Avg Bid)
    $549 平均报价
    15 个竞标

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

    $11 / hr (Avg Bid)
    $11 / hr 平均报价
    4 个竞标

    We need an experienced Solidity developer for long-term cooperation in order to write, analyze, study Ethereum Smart [登录来查看链接] are interested in long-term cooperation as we are constantly working in the blockchain field.

    $5000 - $10000
    $5000 - $10000
    0 个竞标

    We need an experienced Solidity developer for long-term cooperation in order to write, analyze, study Ethereum Smart [登录来查看链接] are interested in long-term cooperation as we are constantly working in the blockchain field.

    $5000 - $10000
    $5000 - $10000
    0 个竞标
    Need EOS blokchain expert 5 天 left
    已验证

    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)
    $20 / hr 平均报价
    12 个竞标

    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)
    $3083 平均报价
    19 个竞标
    EOS blokchain expert -- 2 5 天 left
    已验证

    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)
    $21 / hr 平均报价
    11 个竞标

    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)
    $2550 平均报价
    17 个竞标
    EOS blokchain expert 5 天 left
    已验证

    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 平均报价
    5 个竞标

    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''.

    $7225 (Avg Bid)
    $7225 平均报价
    3 个竞标

    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)
    $140 平均报价
    1 个竞标

    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...

    $78 (Avg Bid)
    $78 平均报价
    2 个竞标
    crypto platfrom 4 天 left
    已验证

    I need a Crypto platform like [登录来查看链接] You probably already know what I'm talking about if you Google a bit what Arbistar is. Looking forward to hearing from you

    $43 / hr (Avg Bid)
    $43 / hr 平均报价
    4 个竞标

    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)
    $573 平均报价
    11 个竞标

    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 ...

    $511 (Avg Bid)
    $511 平均报价
    5 个竞标
    Afripedia 4 天 left
    已验证

    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)
    $385 平均报价
    5 个竞标
    Ethereum Testnet App for NFT 4 天 left
    已验证

    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...

    $142 (Avg Bid)
    $142 平均报价
    3 个竞标

    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 平均报价
    3 个竞标

    We need an experienced Solidity developer for long-term cooperation in order to write, analyze, study Ethereum Smart [登录来查看链接] are interested in long-term cooperation as we are constantly working in the blockchain field.

    $250 - $750
    $250 - $750
    0 个竞标

    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)
    $1036 平均报价
    3 个竞标
    Create Crypto Voucher 4 天 left
    已验证

    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)
    $2442 平均报价
    13 个竞标

    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)
    $222 平均报价
    4 个竞标
    Blockchain internet platform 4 天 left
    已验证

    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...

    $6890 (Avg Bid)
    $6890 平均报价
    8 个竞标

    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 个竞标
    Algorand Wallet API Service 3 天 left
    已验证

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

    $569 (Avg Bid)
    $569 平均报价
    14 个竞标

    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)
    $19 / hr 平均报价
    15 个竞标

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

    $787 (Avg Bid)
    $787 平均报价
    15 个竞标

    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)
    $581 平均报价
    17 个竞标

    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)
    $18 / hr 平均报价
    3 个竞标
    Custom Crypto Exchange 3 天 left
    已验证

    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)
    $777 平均报价
    13 个竞标

    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)
    $8 / hr 平均报价
    2 个竞标
    Blockchain analysis app 2 天 left
    已验证

    Blockchain specialist needed for a potentially complex blockchain project. More info given to potential candidates.

    $4607 (Avg Bid)
    $4607 平均报价
    15 个竞标
    Blockchain Solution 2 天 left
    已验证

    I need 3 smart contracts in a web app. The selected person shall work on the project until it's completely ready.

    $613 (Avg Bid)
    $613 平均报价
    13 个竞标

    We want to implement/code blockchain in Vehicular Ad-hoc Network (VANET) using following tools: a) OMNET++,VEINS, SUMO. b)NS2,NS3, SUMO

    $566 (Avg Bid)
    $566 平均报价
    5 个竞标

    Need to optimize existing website for a restaurant chain in Sri Lanka Build loyalty plug in on blockchain logic that can be integrated with cloud based POS

    $18 / hr (Avg Bid)
    $18 / hr 平均报价
    11 个竞标

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