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. Hire Blockchain Developers

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    43 jobs found, pricing in USD

    I need a Blockchain project. Only experienced developers can bid. Details will be provided via chat.

    $60 (Avg Bid)
    $60 Avg Bid
    2 bids

    I need a Blockchain Developer capable of producing a fork with basic Blockchain Adjustments like Block Time, Block Reward, Block Halving, Etc. We would like a wallet implemented and designed as well along with several additional aspects to the development but nothing to extensive. We would require someone with at least 2-3 years experience with Blockchain Developer. ***NOT SMART CONTRACTS! SOL...

    $36 / hr (Avg Bid)
    $36 / hr Avg Bid
    11 bids

    I need complete guide to create qt wallets, genesis block, block explorer, block chain from scratch. Finished product should include guide for bash file for easy setup of a masternode VPS on Ubuntu 18.04, and QT GUI wallets for Linux, Windows, Mac. Finished blockchain should not have Proof-of-work mining capabilities. All GUI wallets should be capable of hosting masternodes, have an explorer optio...

    $21 - $175
    $21 - $175
    0 bids

    I receive error when i try mint zerocoin, so i need to fix it

    $27 (Avg Bid)
    $27 Avg Bid
    2 bids

    Hi! I want my iOS app to be developed in React Native. It's an app like Uber. I have the Android & iOS version already made up using Objective C. Design & all the things will be same as the existing app in React Native except map. The map should be created for React Native. It’s a simple map like admin can change the colors, can create own icons, colors on map etc in a word, ad...

    $1789 (Avg Bid)
    $1789 Avg Bid
    19 bids

    I want to develop a proprietary service for my customers. Essentially, it's going to be a stripped-down version of blockchain. I need someone who is knows blockchain inside out - to the point where theyre not helplessly enamoured by it. If you know what you're doing, this is a walk in the park. If you're wrapped up in your crypto bubble, stay there, I have no use for you

    $1136 (Avg Bid)
    $1136 Avg Bid
    16 bids
    Compile new POS/POW coin -- 2 6 days left
    VERIFIED

    I want to start a new coin POS/POW. Please bid if you have already developed coins. Looking forward for serious dev..

    $1218 (Avg Bid)
    $1218 Avg Bid
    3 bids

    I need some one to install Rubykube/peatio cryprocurrency exchange in Kubernetes or linux, and you should modify backend and frontend ui please bid if you worked kubernetes docker Ruby on rails and blockchain technologies, want to know more details plz chat with me,

    $30 / hr (Avg Bid)
    $30 / hr Avg Bid
    5 bids

    fix minor issues on coinspayment gateaway. btc, eth, and ltc mostly is fixed, just that the exchange rate has a problem. [login to view URL]

    $87 (Avg Bid)
    $87 Avg Bid
    8 bids
    fix bug on API 5 days left
    VERIFIED

    i need a minor bug fix on coinspayment API.

    $48 (Avg Bid)
    $48 Avg Bid
    22 bids

    Hello. I want to make a demo of a decentralized video distribution platform using TRON. There are no ads or commercials on this site. My existing site uses Ethereum for micropayments and WebTorrent (in-browser BitTorrent) for streaming. I want to do a very simple proof-of-concept using TRON instead of Ethereum. The viewer comes to the site and uses TRON to automatically send a micropayment to the ...

    $100 (Avg Bid)
    $100 Avg Bid
    1 bids

    I need crypto currency desktop wallet

    $678 (Avg Bid)
    $678 Avg Bid
    17 bids

    Let me know if you can provide me the needed amount , so we can discouss for more !

    $60 (Avg Bid)
    Guaranteed Sealed
    $60
    3 entries
    Web app deveoper needed 4 days left
    VERIFIED

    Progressive web app - to save information in blockchain MVP ... create text message or text box attach photo, take pics, save video, audio ... we want to use Fluree Blockchain Database and Decentralized Apps. database API.

    $703 (Avg Bid)
    $703 Avg Bid
    18 bids

    Hello, i am seeking for a developer that can build a blockchain based marketplace where user and business people are able to find each other, for example like freelancer.com is doing but for another target group. The site allows to post the needs for site members while bidding on in a competitive tender process. On the other hand seller can list their "item", user can view it and press ...

    $1682 (Avg Bid)
    $1682 Avg Bid
    56 bids

    1) I want the logic to be implemented (along with the check on the points mentioned if they are functioning properly). User A: Seller Sends 100 User B: Buyer Receives 90 or 88 depending on network fees Transaction amount: 100 Seller Sends: 100 Escrow receives: 100 - 5 ( 3 network fees + 2 commission) = 95 Buyer Receives: 95 - 5 ( 3 network fees + 2 commission) = 90 If network fees goes high from E...

    $128 (Avg Bid)
    $128 Avg Bid
    4 bids
    Blockchain Dapp 4 days left

    Need to create Dapp using blockchain technology

    $487 (Avg Bid)
    $487 Avg Bid
    14 bids

    I need someone who is very familiar with Masternodes and how they work. I am going to create a platform like [login to view URL] or [login to view URL] A Masternode hosting and deployment platform. I’m familiar with the amount of work needed to develop something like this and it isn’t really too difficult. Fairly simple stuff. Payment will be made partially with CAD but mostly wit...

    $706 (Avg Bid)
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    16 bids
    need to develop API. 3 days left
    VERIFIED

    we already have github, explore, and technical specifications. we need to generate api for our exchange, main wallet under that coin address generation, send receive and balance. please find all details 1. GITHUB: [login to view URL] 2. Technical Specification: [login to view URL] 3. Explorer: [login to view URL] with the above link i.e. github, tech spec and explorer we can integrate the coin...

    $196 (Avg Bid)
    $196 Avg Bid
    3 bids

    I need someone to help with marketing and crowdsales of an erc20 token profits will be shared after crowdsales.

    $14005 (Avg Bid)
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    18 bids

    Change the code of EOS source code (just a file: [login to view URL]) to make it work on another token. One should have complete knowledge of EOS and C, C++.

    $18 (Avg Bid)
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    1 bids

    Looking to hire someone who can create a cryptocurrency exchange, complete back end. Only wanting to hire someone who has already previously built an exchange or who can build one based off another template. Only willing to spend a minimum amount of money to build the platform. Can only pay monthly, no upfront payments. Want an exchange similar to one of these: [login to view URL] [login to v...

    $1026 (Avg Bid)
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    13 bids

    I have a installed hyperledger fabric (v1.3) network on multiple nodes with Kafka-zookeeper, the setup is: VM1:zookeeperOP、kafkaOP、caOP, ordererOP、peer0/peer1, orgOP、cli VM2:zookeeperHIT、kafkaHIT、caHIT, ordererHIT、peer0/peer1, orgHIT、cli VM3:zookeeperMTL、kafkaMTL、caMTL, ordererMTL、peer0/peer1, orgMTL、cli VM4:kafkaOrderer But when creating a channel, it prompt below error: $ docker exec -e "C...

    $176 (Avg Bid)
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    4 bids
    Compile new POS/POW coin 3 days left
    VERIFIED

    I want to start a new coin POS/POW. Please bid if you have already developed coins. Looking forward for serious dev..

    $805 (Avg Bid)
    $805 Avg Bid
    8 bids
    Ether Smart Contract Audit 2 days left
    VERIFIED

    I'm looking legal auditor for our token smart contract. You must have to have company! You should provide a genuine audit paper.

    $373 (Avg Bid)
    $373 Avg Bid
    11 bids

    I want to gradually start developing our cryptocurrency wallet app for [login to view URL] that can be downloaded on apps store via Google and other places (IOS, Android and later Windows) Below are some features (open to better suggestions ) A) One place for top coins (BTC, ETH , BCH , Litecoin and Ethlyte token plus other ERC 20 tokens compatible ) B) Exchange between currencies and cryptos ins...

    $2935 (Avg Bid)
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    35 bids

    Need help setting up a project - go, geth, ethereum

    $11 (Avg Bid)
    $11 Avg Bid
    6 bids
    Help me run a go project 2 days left
    VERIFIED

    Need help setting up a project - go, geth, ethereum

    $10 (Avg Bid)
    $10 Avg Bid
    2 bids

    Need to create and design a whitepaper and pitch deck for a blockchain based project (ICO)

    $946 (Avg Bid)
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    28 bids

    I want to develop a proprietary service for my customers. Essentially, it's going to be a stripped-down version of blockchain. I need someone who is knows blockchain inside out - to the point where theyre not helplessly enamoured by it. You will start by sending me a formal document explaining the key elements of blockchain that are necessary. This is to show me the depth of your understandin...

    $18 / hr (Avg Bid)
    $18 / hr Avg Bid
    32 bids

    Currently, we are Looking for Online “Blockchain” (part-time) Trainer, who like to work with us for online training assignments. A trainer who expert on mentioned technology and deliver the same to professionals, and who like to work with us for online training assignments. Our students are located across the globe, we facilitate individuals and corporate to meet their training needs...

    $512 (Avg Bid)
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    2 bids

    Need white paper for an upcoming project including write content and design. Please show me what you've done.

    $505 (Avg Bid)
    $505 Avg Bid
    12 bids

    I need someone acquainted with blockchain technology and EOS, to perform fork on EOs and introduce sharding in it. This project also includes making some small changes in EOS code to make it work with a different token. Write Sharding on the top of your bid so that I know that you have read the description. Bid only if you have previous work experience with blockchain. Max Budget is 25,000.

    $571 (Avg Bid)
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    6 bids
    IPFS Blockchain 17 hours left
    VERIFIED

    Solve some IPFS Blockchain issue. See below link: [login to view URL] Documentation: [login to view URL]

    $208 (Avg Bid)
    $208 Avg Bid
    7 bids

    Looking to create a copy of a shared masternode platform either [login to view URL] or [login to view URL] With Instant Shares and Staking pool included. staking pool offers its community a high uptime by providing reward infrastructure and frequent rewards even when someone has a small amount of coins. instant shares: You can deposit your coins and leave the node like a normal pos pool and yo...

    $8 / hr (Avg Bid)
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    6 bids

    Create a mobile wallet that can have multiple tokens and each token represents a company's loyalty points. There have to be two types of users - Normal Users and Pool users. - Users should be able to transfer these tokens to each other. - Users should be able to purchase these tokens by paying money. - Users should be able to convert one token to another token using a predefined conversi...

    $96 (Avg Bid)
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    3 bids
    Blockchain whitepaper and deck 13 hours left
    VERIFIED

    Need to create whitepaper for a blockchain project along with a pitch deck. Please respond if you have prior experience, along with your whitepaper proposal.

    $492 (Avg Bid)
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    16 bids
    blockchain developer needed 11 hours left
    VERIFIED

    i need a blockchain developer to make some simple changes to my website.

    $103 (Avg Bid)
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    19 bids

    i need btc, eth, and ltc payment..

    $131 (Avg Bid)
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    22 bids

    I need Bitcoin Node to be installed with API key. The whole server must be install securely and should be penetrate able. Server must run a full node with API access. API must be use able to create/generate new wallet addresses, Node must be able to send and receive payments, Node must be automatically transferring funds from node wallet to a cold / hardware wallet. Server must be protected agains...

    $398 (Avg Bid)
    $398 Avg Bid
    12 bids
    Create a new Crypto Currency 20 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.

    $3419 - $5699
    Featured Sealed NDA
    $3419 - $5699
    63 bids

    some example: [login to view URL]

    $13 (Avg Bid)
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    1 bids

    mình cần tuyển 1 hay 1 nhóm coder có thể code cho mình 1 dapp đánh bạc trên nền erc20 tiền công negotiable

    $2729 (Avg Bid)
    $2729 Avg Bid
    8 bids

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