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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    31 搜到的工作,价格货币为 HKD

    I have forked a dapp and turned into a similar game, but one of the functions is not working. It's developed on tron blockchain. I need you to see the smart contract and see what needs to be fixed.

    $1115 (Avg Bid)
    $1115 平均报价
    3 个竞标
    ICO Bounty Hunter Required 6 天 left
    已验证

    We need an experienced bounty and airdrop coordinator for our upcoming ICO. The successful applicant will have references of past work and evidence of the capabilities required. Full management of the process e2e required. Pre-ICO starts in May 2019. Please provide a high-level plan on what activities you will carry out to ensure a successful ICO bounty campaign and how long. The founders are...

    $110 / hr (Avg Bid)
    $110 / hr 平均报价
    2 个竞标
    create a masternode coin! 6 天 left
    已验证

    i need to change my current erc20 token to a masternode token like dash i already have own erc20, just need to swap it.

    $4349 (Avg Bid)
    $4349 平均报价
    6 个竞标

    Need it done in 48 hours, the coin is a pow coin.. The developer that will do this must have it done in 48 hours.

    $16122 (Avg Bid)
    $16122 平均报价
    5 个竞标

    I am looking for a programmer to develop a birth registration application in solidity, can be a simple application

    $3477 (Avg Bid)
    $3477 平均报价
    6 个竞标
    Looking for crypto trader 6 天 left
    已验证

    We are a company based in Dubai and We are looking for experienced freelance traders, who can join our dynamic and dedicated team. Who are we? Teroxx is one of the first digital asset and digital currency trading houses in the world! Working closely with regulators, Teroxx is on its way to implement an international concept for cryptocurrency trading and investments in blockchain technology and i...

    $408 / hr (Avg Bid)
    $408 / hr 平均报价
    8 个竞标

    Hello, We want to create a crypto-asset which here is the context: Our company FAZUP manufactures and markets a device that greatly reduces the amount of electromagnetic waves absorbed by smartphone users. It is an extra fine passive antenna, in the form of a patch, which is positioned very precisely on the back of the mobile phones, with respect to their main antenna location. The FAZUP patch r...

    $116 / hr (Avg Bid)
    $116 / hr 平均报价
    13 个竞标

    Need turnkey solution with source code, training and support : Liquidity aggregator for own cryptocurrency exchange. REST API, WebSockets, minimal 3 platform: Binance, Bitfinex, Huobi Attach description and indicators

    $33790 (Avg Bid)
    $33790 平均报价
    26 个竞标

    The topic of the Blog is : What is blockchain (including its features) and types of blockchain (Public, Private, and Consortium blockchain) Notes: a)Content should be unique and professional b)The tone of the blog should be user-friendly and easy to understand c)It should not be copied/duplicate from any source on the internet d)Experience in this blockchain technology would be preferred e)Shou...

    $141 (Avg Bid)
    $141 平均报价
    3 个竞标

    We need an easy to understand video about what the blockchain can bring to enterprises and for private use. The length is maximum 90 seconds and it needs to explain: 1] What is the blockchain 2] What are possibilities on the blockchain 3] Assets/aliases on the blockchain 4] Exchanges and transactions on the blockchain. Example of the quality and look-feel we expect: [登录来查看链接] Why we need it? We ...

    $7975 (Avg Bid)
    $7975 平均报价
    37 个竞标

    Hello, I need to find someone who can create a Betting/Game Dapps based on the Tronx blockchain For example: [登录来查看链接] [登录来查看链接] You can provide me with game ideas, and I will choose. Regards

    $23327 (Avg Bid)
    $23327 平均报价
    26 个竞标

    We need to do penetration testing to our smart contract on Rinkeby and need to static analysis as well. We need to complete this static & dynamic analysis ASAP before you launch the contract on mainnet. The developer needs to have expertise in Solidity and have extensive experience in Solidity smart contract audit and penetration testing. Please follow up with portfolios.

    $5855 (Avg Bid)
    $5855 平均报价
    9 个竞标

    We have a running DEX but on running market [登录来查看链接] tech spec we want. Specifically we want to build a [登录来查看链接] like exchange. 1. Front end totally change (use react or any other tech) 2. Full source code need to be provided 3. Backend server 4. Token listing/integration process 5. Deploy on digital ocean 6. 2 color theme daymode and night mode ** All resource are avialable on their Gith...

    $12339 (Avg Bid)
    $12339 平均报价
    21 个竞标

    Hello, I need to find someone who can create a decentralized trading platform based on the Tronx blockchain For example: [登录来查看链接]

    $19623 (Avg Bid)
    $19623 平均报价
    30 个竞标

    We need to do penetration testing to our smart contract on Rinkeby and need to static analysis as well. We need to complete this static & dynamic analysis ASAP before you launch the contract on mainnet. The developer needs to have expertise in Solidity and have extensive experience in Solidity smart contract audit and penetration testing. Please follow up with portfolios.

    $5494 (Avg Bid)
    $5494 平均报价
    11 个竞标

    We are looking for Blockchain Expert who can work on our various projects. There are so many tasks that you have to implement and if you are right person, it will be long term contract. I'm looking for Real Expert have at least 2 years of experience in this field. You are needed to show some previous works that you have done and explain about it. Must work on US timezone. There might be over...

    $173 / hr (Avg Bid)
    $173 / hr 平均报价
    34 个竞标

    I need blockchain developers, for crypto games. Slots, roulette, dice

    $13697 (Avg Bid)
    $13697 平均报价
    20 个竞标

    Need developer that had done a Crypto virtual banking or ICO crowdfunding site that builds under ethereum blockchain technology ERC20. The developer needs to know code igniter or Laravel to start a project. A developer needs to know Linux server, Plesk. It's very important that the website needs to be able to accept cryptocurrencies like bitcoin, Eth, LTC, and other Token. A developer needs t...

    $10337 (Avg Bid)
    $10337 平均报价
    72 个竞标

    I need crypto marketing expert that can convert massive audience to my crypto project through airdrop and bounty tasks on Bitcointalk, telegram and other crypto related websites.

    $1130 (Avg Bid)
    $1130 平均报价
    7 个竞标

    hi I'm Faten I'm senior student CIS major I work on my senior project and I need a lot of help and someone have good experience in python and blockchain concept. the idea of my project is too simple I have already the most of important part of the code but just o want to add more features to the project. the project needs to build: - 2 web GUI and connect to the blockchain - generates...

    $1578 (Avg Bid)
    $1578 平均报价
    13 个竞标

    i am looking to customize peatio so that orders are settled onchain after trade has occurred with something like lamden clove , and deploy to AWS . the finished product will be a DEX

    $9937 (Avg Bid)
    $9937 平均报价
    16 个竞标

    Basic Simulation of Private Block-chain Environment. Concurrency & bitcoin not required. Simulate the basic definition of block-chain. Growing list of records, called blocks, which are linked using cryptography. Each block contains a cryptographic hash of the previous block, a timestamp, and transaction data. (an open, distributed ledger concept.) You may provide me already available implement...

    $66 - $165
    $66 - $165
    0 个竞标
    i want a masternode software 2 天 left
    已验证

    I need an expert to develop a masternode software for me. I would like this software to be developed for Windows using Java or any other compatible programming language. software features include coin, masternode, and staking. Interested developer is required to be well experienced in crypto-currency, masternode and blockchain technology in general.

    $4050 (Avg Bid)
    $4050 平均报价
    20 个竞标

    We are looking for a blockexplorer similar to this [登录来查看链接] There is open source code for this but needs a few ui changes [登录来查看链接] [登录来查看链接] Showing also network, top 100, api, movment.

    $1421 (Avg Bid)
    $1421 平均报价
    9 个竞标

    We are looking for a developer with proven knowledge in the installation/setup of BITEXCHANGE ([登录来查看链接]) / crypto exchange The exchange script is installed, but we need some changes done, and hopefully have a long term relationship with a development team. If the work is satisfactory , we will continue with additional jobs for ERC-20 token integration, liquidity management module, Cold Wallet, ...

    $1631 (Avg Bid)
    $1631 平均报价
    14 个竞标

    I am located in the United States. We have many regulations that make it difficult to do an ICO. Looking to establish an ICO from a cryptocurrency friendly Country. Helpful if you have experience marketing cryptocurrency ICO"s

    $5628 (Avg Bid)
    $5628 平均报价
    24 个竞标

    We are looking for blockchain developers to help us build or fork a blockchain for our new project.

    $20902 (Avg Bid)
    $20902 平均报价
    47 个竞标

    We need to build a one stop shop of real estate with a decentralized storage (in order to allow users to upload all documents required to set up a loan) like [登录来查看链接], [登录来查看链接] or [登录来查看链接] including scanner with OCR backed to jobbing plateform like Upwork but only dedicated to mortgage brokers and banks. This operational set up have to be based on a private blockchain with smart contract one ac...

    $3744 (Avg Bid)
    $3744 平均报价
    9 个竞标

    I need to create multiple address on myetherwallet via automation. I need it to be done today. If you can't finish in next few hours, please don't post.

    $316 (Avg Bid)
    $316 平均报价
    3 个竞标

    I have a very simple and basic car game where people can upgrade cars by paying in $. I would like to replace this payment method with crypto. Please PM and I will send more details. Thanks!

    $4552 (Avg Bid)
    $4552 平均报价
    28 个竞标

    we want to build a cryptocurrency exchange not token exchange not ICO website crypto exchange BTC BCH ETH LTC XRP NEO USDT TRX all coins should be able to trade with each other as pairs. *** you can download requirements document and read that in depth and word by word *** if you want to have a chance to choose as this project freelancer, you should read t...

    $47094 - $78490
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    $47094 - $78490
    95 个竞标

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