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.

Punësoni Blockchain Developers

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    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.

    €148 (Avg Bid)
    €148 Oferta mesatare
    7 ofertat
    ICO Bounty Hunter Required 6 ditë left
    VERIFIKUAR

    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...

    €12 / hr (Avg Bid)
    €12 / hr Oferta mesatare
    2 ofertat
    create a masternode coin! 6 ditë left
    VERIFIKUAR

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

    €508 (Avg Bid)
    €508 Oferta mesatare
    8 ofertat

    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.

    €1537 (Avg Bid)
    €1537 Oferta mesatare
    6 ofertat

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

    €390 (Avg Bid)
    €390 Oferta mesatare
    6 ofertat
    Looking for crypto trader 6 ditë left
    VERIFIKUAR

    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...

    €46 / hr (Avg Bid)
    €46 / hr Oferta mesatare
    8 ofertat

    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...

    €13 / hr (Avg Bid)
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    13 ofertat

    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

    €3789 (Avg Bid)
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    28 ofertat

    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...

    €16 (Avg Bid)
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    3 ofertat

    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: [identifikohuni për t&eum...

    €900 (Avg Bid)
    €900 Oferta mesatare
    38 ofertat

    Hello, I need to find someone who can create a Betting/Game Dapps based on the Tronx blockchain For example: [identifikohuni për të parë adresën URL] [identifikohuni për të parë adresën URL] You can provide me with game ideas, and I will choose. Regards

    €2618 (Avg Bid)
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    26 ofertat

    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.

    €640 (Avg Bid)
    €640 Oferta mesatare
    11 ofertat

    We have a running DEX but on running market [identifikohuni për të parë adresën URL] tech spec we want. Specifically we want to build a [identifikohuni për të parë adresën URL] 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 ...

    €1385 (Avg Bid)
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    21 ofertat

    Hello, I need to find someone who can create a decentralized trading platform based on the Tronx blockchain For example: [identifikohuni për të parë adresën URL]

    €2203 (Avg Bid)
    €2203 Oferta mesatare
    30 ofertat

    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.

    €617 (Avg Bid)
    €617 Oferta mesatare
    11 ofertat

    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...

    €19 / hr (Avg Bid)
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    34 ofertat

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

    €1537 (Avg Bid)
    €1537 Oferta mesatare
    20 ofertat

    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...

    €1159 (Avg Bid)
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    74 ofertat

    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.

    €127 (Avg Bid)
    €127 Oferta mesatare
    7 ofertat

    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...

    €177 (Avg Bid)
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    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

    €1115 (Avg Bid)
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    16 ofertat

    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...

    €7 - €19
    €7 - €19
    0 ofertat
    i want a masternode software 2 ditë left
    VERIFIKUAR

    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.

    €455 (Avg Bid)
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    20 ofertat

    We are looking for a blockexplorer similar to this [identifikohuni për të parë adresën URL] There is open source code for this but needs a few ui changes [identifikohuni për të parë adresën URL] [identifikohuni për të parë adresën URL] Showing also network, top 100, api, movment.

    €159 (Avg Bid)
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    9 ofertat

    We are looking for a developer with proven knowledge in the installation/setup of BITEXCHANGE ([identifikohuni për të parë adresën URL]) / 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 inte...

    €183 (Avg Bid)
    €183 Oferta mesatare
    14 ofertat

    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

    €632 (Avg Bid)
    €632 Oferta mesatare
    24 ofertat

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

    €2346 (Avg Bid)
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    47 ofertat

    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 [identifikohuni për të parë adresën URL], [identifikohuni për të parë adresën URL] or [identifikohuni për të parë adresën URL] including scanner with OCR backed to jobbing plateform ...

    €420 (Avg Bid)
    €420 Oferta mesatare
    9 ofertat

    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.

    €35 (Avg Bid)
    €35 Oferta mesatare
    3 ofertat

    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!

    €511 (Avg Bid)
    €511 Oferta mesatare
    28 ofertat
    Build a CryptoCurrency Exchange. 15 ditë left
    VERIFIKUAR

    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...

    €5286 - €8810
    Cilësuar Vulosur
    €5286 - €8810
    95 ofertat

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