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    31 jobs found, pricing in USD

    My previous developer created a decentralized exchange, however it is having errors and I need it fixed to make sure it is 100% functional. The site works but it keeps getting errors and people cannot withdraw/deposit/trade half the time and getting errors on the exchange smart contract. I need someone to fix it so it is 100% functional.

    $119 (Avg Bid)
    $119 Avg Bid
    4 bids
    Simple Ethereum Token Swap 6 days left
    VERIFIED

    I want a simple contract where users send the old version of our token and instantly receive the new version of our contract. For each 1 token of the old version they send they will receive 3 of the new token. this should be automated and gas is paid by the user when they send the old contract so I shouldnt have to add eth for gas for this function. I need this asap.

    $206 (Avg Bid)
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    6 bids

    We need a clone of CoinBase site to buy crypto

    $635 (Avg Bid)
    $635 Avg Bid
    13 bids

    Design and architecture for solution based on Blockchain Ethereum technology is required

    $226 (Avg Bid)
    $226 Avg Bid
    4 bids

    Im looking for a technical expert in Blockchain. Looking for a good long term technical partner that can initially scope technical aspects of a blockchain application to a specific industry. As this stage i want someone who csb devekop a feasibility and scoping document, but ideally somone with the capbility and interest to contribute to the project ongoing. Must be efficient, reliable and...

    $662 (Avg Bid)
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    7 bids
    ICO whitepaper 6 days left
    VERIFIED

    i need someone that can create a good quality ico whitepaper that explains what the overall business is about. show your portfolio.

    $173 (Avg Bid)
    $173 Avg Bid
    20 bids
    Decentralized app 5 days left
    VERIFIED

    Texasholdem poker tournament decentralized app

    $3484 (Avg Bid)
    $3484 Avg Bid
    10 bids

    Hello Senior developers I am finding a person who have Ethereum Classic transaction experience. There's smart contract on ETC network, and just need to connect to the contract using Javascript. We have already existing script that works on Ethereum(same contract). Just want to find someone who is good at ETC network, I think it will be 30mins job if someone knows it. Also we are lack of devel...

    $322 (Avg Bid)
    $322 Avg Bid
    6 bids
    Crypto Exchange 5 days left
    VERIFIED

    Hello, I need a crypto exchange line [login to view URL] and others

    $2161 (Avg Bid)
    $2161 Avg Bid
    23 bids

    We are looking for a DApp programmer to build a demo project. We are in Proof of Concept stage and looking for experience programmer for quick job to prove our ideas works. Following with Scope 1. DApp required to query data from our API. We have a sales transaction want to submit on Ether Blockchain. Following with sample data structure and may have minor changes. Customer Name, Transaction Typ...

    $270 (Avg Bid)
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    18 bids
    Erc20 Token 4 days left
    VERIFIED

    We are looking for developer to code us on ERC20 token and develop its user wallet

    $817 (Avg Bid)
    $817 Avg Bid
    21 bids

    [login to view URL] is where this alert will be focused on only one asset. You have bid and ask prices I want an alert when these prices hit 0.00000009 and 0.00000011. I can have email alerts and or pop up or whatever as long as it is in real time

    $125 (Avg Bid)
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    4 bids

    I need a report about current status of cryptocurrencies, with particular reference to Ethereum and tokens based on ERC20 protocol. 4-5 changes which contain informations about exchange rates, usability, opportunities for the development of the industry. Perfect English required. Information for chosen freelancer - please do not copy someone else's publications.

    $28 (Avg Bid)
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    14 bids

    Hi, we're looking for blockchain experts who can make us decentralized exchange like such like idex or ddex. (or customize previously made solution of yours for us) We would like the exchange's smart contract is based on forkdelta's. The exchange must provide all basic functions like: (simply all functions that fork-delta provide + tradingview) - withdraw / deposit - listing and d...

    $9809 (Avg Bid)
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    37 bids

    I need Developers that have experience with Blockchain technology Skillset needed Bitcoin Core, masternodes, C/C++, Api Development, ERC 20,

    $18 / hr (Avg Bid)
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    21 bids

    I have been associated with the BFSI industry for 13 yrs initially from business and operations side and then technology and eventually landed up into marketing and strategy. Having realized that this diversified experience is a good platform to enter the next big wave of innovation in the Fintech space, I have started to develop a few disruptive banking products using Blockchain, Robotics and Dat...

    $42 / hr (Avg Bid)
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    3 bids

    I have been associated with the BFSI industry for 13 yrs initially from business and operations side and then technology and eventually landed up into marketing and strategy. Having realized that this diversified experience is a good platform to enter the next big wave of innovation in the Fintech space, I have started to develop a few disruptive banking products using Blockchain, Robotics and Dat...

    $13 / hr (Avg Bid)
    $13 / hr Avg Bid
    3 bids

    help me creating erc 20 smart contract

    $134 (Avg Bid)
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    11 bids

    I am looking for blockchain expert or team who has expertise in real asset based cryptocurrency. Requirements>> 1. Strong knowledge of tokenizing 2. Good understanding of real estate ecosystem

    $39 / hr (Avg Bid)
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    43 bids
    Smart Contract 3 days left
    VERIFIED

    Smart Contract in Solidity on Ethereum, for a token that references a claim against a property.

    $178 (Avg Bid)
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    14 bids

    I need to make a new coin using open source of current one, before you bid note you should have experience in fork POS coins before and make everything work probable, contact me for all coin specifications. Please bid within my budget...

    $560 (Avg Bid)
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    15 bids

    Need an A to Z, Blockchain, Bitcoin, Smart contract, ICO, White papers expert, who have completed a project successfully and can share white papers + project, please share your project link in the bid. Many thanks

    $2933 (Avg Bid)
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    53 bids
    Develop Exchange (Crypto) 1 day left
    VERIFIED

    I want someone who has done cryptocurrency exchange. Basically, I'm trying to complete exchange with the low budget. The exchange like a binance, bittrex and must have to have all function same as other exchange. Different Market, API, Tracking my Budget is just 500$

    $736 (Avg Bid)
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    24 bids
    blockchain consultation 1 day left
    VERIFIED

    we are exploring few blockchain use-cases and we need someone to consult and develop

    $297 (Avg Bid)
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    15 bids
    ERC20 token symbol reserve 1 day left
    VERIFIED

    Hello, We are going for an ICO in Q4 this year. And we want to reserve our symbol so that no one else can use the symbol. So need assistant with that.

    $369 (Avg Bid)
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    9 bids

    i have an idea and i want to run an ICO for it need some one who can completely code it for me i mean, smart contract + ICO features + Website + Create a copy of available open-source project Will talk about budget later

    $3480 (Avg Bid)
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    50 bids

    PM me for detailed work. I will provide info in chat.

    $109 (Avg Bid)
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    15 bids

    I am working on a exchange project. My node is setup and address being genrate. I want to a method where i can transfer token from one account to another account paying fee from third account. is there any way to do using json-rpc call. Please write "ethrpc" in starting to confirm that you read description.

    $127 (Avg Bid)
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    3 bids
    Create a new Crypto Currency 5 days left
    VERIFIED

    Create a new Crypto Currency by Improving open source existing codes and ensure its reliability to connect to external environments, and implement sepcific specs and deliverables and high level security.

    $3527 - $5879
    Featured Sealed NDA
    $3527 - $5879
    45 bids

    Hello, Looking for an ICO adviser who is an expert with solid Tokenomics and Financial Model background. You must have a solid international background in business, ICO funding and private sales. The model will be a Crypto Currency exchange, if there is anyone that has executed an exchange and ICO platform successfully than this is for you. Thank you.

    $270 (Avg Bid)
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    3 bids

    I am working on a exchange project. My node is setup and address being genrate. I want to a method where i can transfer token from one account to another account paying fee from third account. is there any way to do using json-rpc call. Please write "ethrpc" in starting to confirm that you read description.

    $35 (Avg Bid)
    $35 Avg Bid
    1 bids

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