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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    56 jobs found, pricing in GBP

    Create an secure online Crypto Wallet for our company !

    £72 (Avg Bid)
    £72 Avg Bid
    5 bids

    Need someone experienced on the above , and who has done projects in them to submit a short research report , answering a few specific questions , and recommending a rough logic/algorithm for implementing a function in crypto .. The task can ideally be finished quite quickly for someone experienced who has done this before. Key Questions : 1) About building unique digital assets for existing ...

    £8 - £23
    £8 - £23
    0 bids

    I need a single link smart contract with auto upgrade on ETH chain. Level 1, 0.01, 2 partners. Level 2, 0.015, 4 partners. Level 3, 0.04, 8 partners. Level 4, 0.2, 16 partners Level 5, 0.5, 32 partners Level 6, 1, 64 partners. Level 7, 5, 124 partners. Level 8, 10, 284 partners. Level 9, 20, 568 partners. Level 10, 30, 1136 partners.

    £500 (Avg Bid)
    £500 Avg Bid
    2 bids
    Bitcoin experts 6 days left

    Beseeching fot bitcoin and blockchain experts to build platform.

    £146 (Avg Bid)
    £146 Avg Bid
    5 bids
    creation of cryptocurrency 6 days left
    VERIFIED

    we need to create a complete cryptocurrency with trading wallet and payment gateway

    £85 (Avg Bid)
    £85 Avg Bid
    5 bids

    I’m looking for a backend developer with minimum of 5 years experience and proven track record in open banking and PSD2 regulations. The solution will be a headless service that can serve both android and iOS mobile applications as well as php, nodejs and .NET sites. There will probably be elements of blockchain technology to ensure and validate user transactions and the developer need to h...

    £15 / hr (Avg Bid)
    £15 / hr Avg Bid
    9 bids

    Website where users convert their crypto to pay Australian Bill or Australia Dollar bank account Needs multiple API's to verify identity , crypto transfer , sell crypto and send payment details to my bank to pay. Need to build website and APIs and create a full working website.

    £1643 (Avg Bid)
    £1643 Avg Bid
    39 bids

    Help me to build a blockchain platform..

    £168 (Avg Bid)
    £168 Avg Bid
    12 bids

    Looking for 1-2 developers with experience on Hyperledger, smart contract, blockchain, ethereum.

    £16 / hr (Avg Bid)
    £16 / hr Avg Bid
    12 bids
    Cryptocurrency P2P platform 5 days left
    VERIFIED

    Crypto P2P platform with language translator and geo location.

    £704 (Avg Bid)
    £704 Avg Bid
    9 bids

    I have a task related to blockchain using python3 and ubuntu virtual machine to code the program. Anyone can do please bid . No auto bidders Budget is 50 usd

    £38 (Avg Bid)
    £38 Avg Bid
    2 bids

    This website will have: - Game (game + relevant Admin Panel data + provably fair) - Deposit and withdraw (Bitcoin + Welcome Bonus) - Affiliates (Invite users for % of commission with affiliate code/link) - Level up (levels up the user and users receive rewards) - Chat (including moderators) - etc Message me for more information including document with the features + requirements, images ...

    £3434 (Avg Bid)
    £3434 Avg Bid
    19 bids

    I looking for Hyperledger Fabric & Compose/MongoDB/REST API, Expert to build Build Blockchain application use Hyperledger fabric & Composer enable to share Customer private data with Service provider throw BlockChain Ledger. Regards

    £526 (Avg Bid)
    £526 Avg Bid
    20 bids

    I am looking for a top quality smart contract developer to work on smart contracts that will be audited by OpenZeppelin and ConsenSys. That means that the code has to be top quality and stand up to the highest level of testing before deployment.

    £1094 (Avg Bid)
    £1094 Avg Bid
    7 bids

    Experience in building a blockchain main chain especially for NFT market forking any exisitng project and rebuilding is also fine... especially looking to fork Ethereum or Tomochain or EOS or Tron anything which has NFT

    £1765 (Avg Bid)
    £1765 Avg Bid
    30 bids
    blockchain/ kraken api 5 days left
    VERIFIED

    looking for a dev to integrate a crypto withdraw function using kraken api. can also integrate stellar codes

    £522 (Avg Bid)
    £522 Avg Bid
    8 bids

    hello i have lose my bitcoin wallet address privet key .and i need my bitcoin wallet address privet key so anybody can get that privet key of my bitcoin. then bid this project

    £2126 (Avg Bid)
    £2126 Avg Bid
    4 bids

    I am looking for highest level blockchain developer

    £51085569406481 (Avg Bid)
    £51085569406481 Avg Bid
    9 bids

    Hello i need a developer that can develop smart contract for me

    £6724 (Avg Bid)
    £6724 Avg Bid
    34 bids

    I'm looking to have a basic Solidity contract made with the following functionality: - Initialize/create the contract with an array of n authorised addresses, where n is an arbitrary number of Ethereum addresses - The ability for authorised addresses to write an arbitrary string to the contract's event log - The ability for authorised addresses to authorise new addresses

    £146 (Avg Bid)
    £146 Avg Bid
    6 bids

    I need a well experienced blockchain / defi developer to help plan a decentralized finance system in our team This is not a job about development, this is about planning and writing, advising on direction and core of the system prefer native speaker

    £341 (Avg Bid)
    £341 Avg Bid
    7 bids
    block chain 4 days left
    VERIFIED

    I need a new website. I need you to design and build it.

    £15038 (Avg Bid)
    £15038 Avg Bid
    13 bids

    I need a distributed application (DApp) like TronProfits developed by C# and .Net (a smart contract on TRON network). Descriptions: This application is a multi-level referral system (Pyramid referral marketing). Referral in each level causes the commission to the referrer and the higher levels related to the referrer (With different profit percentages for each top level). However, in this sy...

    £575 - £1149
    Featured Sealed
    £575 - £1149
    12 bids

    - Fork the latest EOSIO source code - Rewards split 10% to 9-delegators, and 90% to an address - Linux, Windows, Mac Wallets - Add simple token creation feature and token creation web page

    £896 (Avg Bid)
    £896 Avg Bid
    8 bids
    Bustabit Predictor -- 2 4 days left
    VERIFIED

    Dear Team, Please reffer [login to view URL] website, we want a predictor which can show green and red prediction or above 2 and Below 2 prediction with 99% accuracy. Compatible with Windows 10 or windows 7 Thanks & Regards

    £667 (Avg Bid)
    £667 Avg Bid
    5 bids
    Hyperledger Fabric Expert 4 days left
    VERIFIED

    Hello, We are going to build a simple Hyperledger Fabric network. It is not for commercial purpose, a sort of test running. Hope you can also build the frontend part as well. We would only work with an candidate who has extensive experience in building and handling HLF.

    £1013 (Avg Bid)
    £1013 Avg Bid
    11 bids

    I want to build a custody system in blockchain

    £1944 (Avg Bid)
    £1944 Avg Bid
    12 bids
    Kraken crypto api 4 days left
    VERIFIED

    Looking for a dev to complete crypto withdraw using kraken api which is already intergrated into app.

    £163 (Avg Bid)
    £163 Avg Bid
    3 bids

    Hello, I need a website for document verification through Etherium smart contract. The Website should be in Wordpress and the functionality should for the Blockchain part should be a wordpress Plugin. I hava the ready design (very simple) The website should be without registration. Some example of such services are [login to view URL] [login to view URL] [login to view URL] I need the same a...

    £160 (Avg Bid)
    £160 Avg Bid
    12 bids

    Anyone having experience in ethereum and solidity language can ping me i have one interesting project.

    £13 (Avg Bid)
    £13 Avg Bid
    3 bids
    ERC20 Ethereum Token 3 days left
    VERIFIED

    I am looking for someone expert in developer token erc20 on ethereum. I know its easy and quick and will not take much time

    £311 (Avg Bid)
    £311 Avg Bid
    3 bids

    We're a crypto start-up looking for a motivated content writer with the knowledge and passion for blockchain technologies, DeFi, crypto investments and all topics related. We are aiming at producing around 6 (4-8) blog pieces a month as well as PR releases. There is a bit of market research involved - but we are happy to help and advise whenever needed. Our product is in the crypto finance/...

    £14 / hr (Avg Bid)
    £14 / hr Avg Bid
    18 bids

    i want bitcoin expert to help me in trading

    £156 (Avg Bid)
    £156 Avg Bid
    5 bids

    Want to develop a Project on Blockchain Technology (Smart Contract) like [login to view URL] on DAPP Browser In less time duration on ASP .net C#

    £250 (Avg Bid)
    £250 Avg Bid
    7 bids

    I want someone to design a mobile payment application with a website similar to that pf Paytm and Phonepe, with all features.

    £5079 (Avg Bid)
    £5079 Avg Bid
    50 bids

    developing a crypto exchange. looking for a dev who will perform some key functions like cryptos withdraw and stellar integration. stellar codes is ready and just need to be integrated into app

    £117 (Avg Bid)
    £117 Avg Bid
    6 bids

    My platform [login to view URL] produces and publishes public review and ratings for blockchain companies since 2018. I'm currently looking for a technical / business writer, who is able to write short assays (1000 - 1200 words) according to a layout (+ editing) provided by us. It must contain a brief but comprehensive analysis of a product, a market, a business and a token of a given blockc...

    £67 (Avg Bid)
    £67 Avg Bid
    26 bids

    Need a experienced writer in blockchain for writing a whitepaper on our project.

    £5 / hr (Avg Bid)
    £5 / hr Avg Bid
    12 bids
    Need ERC20 Token Expert 2 days left
    VERIFIED

    I Need ethereum token expert. who has proper knowledge of erc20 token contract. plus he is good in script or program marker. web3 expert also.

    £17 (Avg Bid)
    £17 Avg Bid
    2 bids

    I need you to develop some software for me. I would like this software to be developed using Python.

    £562 (Avg Bid)
    £562 Avg Bid
    6 bids
    BTC Recovery 2 days left
    VERIFIED

    I need help with recovering my BTC transaction for which reciever says it never got it. I want someone who is expert in blockchain exploring and tracking and can make a track of where exactly the transaction is

    £80 (Avg Bid)
    £80 Avg Bid
    6 bids

    I need to run services to provide an cryptocurrency wallet for crypto coin need only to provide BTC ETH XMR DASH and DDKOIN wallet like what exodus , coinbase , trust wallet other wallet in the market. the system have have a security level to product the user wallet account need app for android / iOS. I would like it designed and built. please let me know if you can do this. and please bid if...

    £1122 (Avg Bid)
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    12 bids

    i want forsage on tron with dapps note: bid if you hve ready made with my budget The program supported by Fors age is flexible, with no time limit, pressure or targets and anyone can work based on their leisure time. Fors age allows users to earn a long-term residual income through a referral system

    £571 (Avg Bid)
    £571 Avg Bid
    1 bids

    ETHEREUM BLOCKCHAIN DEVELOPMENT TEAM Good Day, I am in search of a senior and experienced Ethereum Smarts Contract development and DevOps team. I am only interested in hiring a team of technical resources working through a company. I do not hire independent freelancers for enterprise projects. I would like to deploy my own Stablecoin on Ethereum with supplementary Smart Contracts related to th...

    £16 / hr (Avg Bid)
    £16 / hr Avg Bid
    15 bids

    Hello i want to start a mlm business in tron coin . For that i need a tron smart contract and a dapp website

    £380 (Avg Bid)
    £380 Avg Bid
    3 bids

    Same core as [login to view URL] but written by node.js Rules: Decentralised social network same as Instagram What we are expecting Blockchain core Api to integrate the web app : Create Wallet Create transaction Get balance Like interaction We will provide the details once we choose the winner

    £492 (Avg Bid)
    £492 Avg Bid
    9 bids

    Inam looking for someone who can make vpn in block chain

    £1201 (Avg Bid)
    £1201 Avg Bid
    5 bids

    i have been scammed by a crypto investment scam. would like my money returned

    £1745 (Avg Bid)
    £1745 Avg Bid
    9 bids

    Create a mineable coin and develop a staking system where users mine coins and stake for the reward. I'm looking for someone who can create a coin easily.

    £310 (Avg Bid)
    £310 Avg Bid
    6 bids

    Patent a business process algorithm for an app; provisional and non-provisional; technology background in social / network app process flow, blockchain experience required. Provisional patent followed by non-provisional patent.

    £3211 (Avg Bid)
    £3211 Avg Bid
    21 bids

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