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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    42 jobs found, pricing in USD

    Etherium based crypto coin on block chain technology

    $4049 (Avg Bid)
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    3 bids

    I need a Blockchain development

    $21 / hr (Avg Bid)
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    10 bids

    Small compliance firm looking to build a secure database on the blockchain for our clients sensitive data. They will not interact with the portal. Will be internal only. Mostly simple features. Nothing crazy. It should store customer cards created by the user, generate reports and be user friendly. Open to suggestions, doesn’t necessarily have to be blockchain based.

    $7 / hr (Avg Bid)
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    i need the develop of a block chain and a smart contract with only 1 information to store inside

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    8 bids

    Hi to all , I need the develop of a private blockchain on a google instance ( hyperledger or substrate are preferite ) . The data to stored on the block chain is a sequence of numbers that is the Unic ID of a nfc tag , the smart contract rappresent the certification of the NFC Tag and should be readable only from the Ip of our website through a dedicated dynamic web page.

    $666 (Avg Bid)
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    We want API and Endpoint Server for Ethereum and ERC20 token. Call Functions we need :- 1. getToken 2. getEthereumBalance 3. getTokenBalance 4. getTransactionInfo 5. newAddress 6. sendEthereum 7. sendToken These are the call functions we need, and for these all to work, we need a API key and Endpoint server hosted on AWS, call limits should be 100 calls per second. A full ethereum node through ...

    $405 (Avg Bid)
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    blockchain developer 5 days left
    VERIFIED

    looking for experienced blockchain developer to work on ibm hyperledger for three to six months.

    $909 (Avg Bid)
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    9 bids

    i have a task to complete for a client, i need some one who has expirence in cryptocurrency, please contact me

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    Hello to all lancers bidding, We would be very interested in leads for the online casino and online sport betting industry. If you have: > databases with leads of prospects > active bettors and/or gamblers Then contact us. P.s. WE ARE NOT INTERESTED IN SEO, TRAFFIC, OR SOCIAL MEDIA CAMPAIGNS.

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    I am looking for a developer to build me a crypto mixing site. Will share more details with selected developers.

    $671 (Avg Bid)
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    33 bids

    Hi i want some one to create me custom php website it should be like this website : [login to view URL] , it uses custom php and Nginx if you can do it then bid on this lowest price 1st

    $209 (Avg Bid)
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    16 bids
    Hyperledger Specialist 5 days left
    VERIFIED

    A specialist is needed to work in the following areas related to Hyperledger - 1. MSPs, OUs, Orgs, Peers, Anchor Peers, Orderers 2. How new MSPs can join the network 3. Kafka, Solo, Raft 4. KYFN, EYFN 5. peer channels, configtxgen, cryptogen, configtxlator 6. adding peers, deploying simple chaincode (init, invoke) 7. Ubuntu 18.04, EC2. ssh, AWS 8. Hyperledger 1.4 OSS (Apache) The task is to setu...

    $23 / hr (Avg Bid)
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    We are building the app for Cryptocurrency and other digital assets. We have a world-class team of data scientists, mathematicians, and quants aiming to bring crypto to the masses by demystifying the underlying data supporting the market. We are looking for full-stack devs who appreciate a challenge. Please, only experienced candidates apply as we are in search of the best

    $21 / hr (Avg Bid)
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    Team for new ico 4 days left

    I'm looking for a team for a new ico real estate (blockchain development, marketing manager, website manager, advisor)

    $3018 (Avg Bid)
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    28 bids
    medical-Blockchain- 4 days left
    VERIFIED

    I looking for someone that can block chain expert. He should know Blockchain well(IBM). I will discuss via chatting more detail. thank reguard....

    $565 (Avg Bid)
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    14 bids
    medical-Blockchain 4 days left
    VERIFIED

    I looking for someone that can block chain expert. He should know Blockchain well(IBM). I will discuss via chatting more detail. thank reguard....

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    Im Srivardhan Reddy from india. I heard a lot about the technology called blockchain and i need a blockchain specialist to teach me.

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    I looking for someone that can block chain expert. Bid only expert. I will share the details with the short listed candidates. thank reguard....

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    Hello - We need someone to compile our whitepaper. We have the general skeleton and key points and need someone to put it together in a polished manner. We just need you to create a word document because we already have the graphics and whitepaper template created. Please message with any questions or clarification needed.

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    We need someone to design a clean and modern site UI. Freelancers with relevant experience are preferred. The project is related to the gaming sector but the site should maintain a professional and business style. The site should use WordPress. We will provide some initial designs but the freelancer should improve their design based on his/her skills and our recommendations from other website...

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    We're an innovative blockchain company looking for a Lead Developer with Project/Product Management experience to lead our development team, and interact between the Business/Marketing Division and the dev team. We have an existing beta version of our product. We need starting a further development. A product is a Google Chrome Extension, so you must have extensive experience in JS/NodeJS de...

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    We need a Golang/blockchain developer who has extensively worked on fintech projects . Experience working with micro services, Experience working with databases . Send me your work recent project's done in Golang only .

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    I looking for someone that can block chain expert. Bid only expert.(except new freelancer)

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    I looking for someone that can block chain expert. Bid only expert.(except new freelancer)

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    HI, freelancers. I am looking for an blockchain developer Project Scope: 1. Configuration Private Network based PoA on AWS 2. fixing a bug here is link [login to view URL] Thanks.

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    HI, freelancers. I am looking for an blockchain developer Project Scope: 1. Configuration Private Network based PoA on AWS 2. fixing a bug here is link [login to view URL] Thanks.

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    I need a a block chain development professional of about 3 years experience. Please send your resume (Removed by Freelancer.com Admin) Note- minimum 2-3 years of experience.

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    There is a set of testers of the new cryptocurrency cashbаck service We are recruiting people who should try out our new service, Cryptokeshbek. All beta test participants will receive $ 500 in Bitcоins for the test. If you have accounts on Blockchain, Binance, EXMO, Huobi, Coinbase. We invite you to cooperate. Our main tasks are to check the stability of the service, and if possible identify bu...

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    Online 3D Game on Blockchain 2 days left
    VERIFIED

    I am looking for someone who has experience with online 3D games or 3D worlds and ideally also with the Ethereum blockchain.

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    Describe the steps needed to build a Blockchain voting system.

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    we required BTC seller for project who have experience in this and can easily manage everything.

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    A set of new beta testers comes to a new cryptocurrency exchange, everyone can participate in the absolute, even without experience. All beta participants will receive $ 500 in their balance for trading bitcoins. For each error we find, we pay 500 dollars.

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    We need to test the operation of the ERC20 (CRYPTOCASHBACK) CSSBACK token. We invite specialists on working with smart contracts on the ethereum and blockchain networks. 1. It is necessary to conduct an audit. 2. Check the network stability. (make several transactions with our tokens within the ERC20 network. 3. Identify network vulnerabilities, if any. For more information send your applications ...

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    We are a building blockchain based applications for customers across different industries, we have already built in commercial and non profit applications. We want to build the following: We have an application to create with: - about 25 screens - responsive - backend functionality such as login, database inputs from users - blockchain registration of hashed data, we plan to use Ethereum. -...

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    I need you to write a research article on banking system,, online banks And compare it with blockchain

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    Hey! I am looking for someone who can teach blockchain app development. Mainly app development on ethereum platform & on hyperledger. You should be available 2-3 hours a day to teach.

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    i need to split my smart-contract (because it's too heavy for the gas limit), deploy in ropsten to test it, change the contract set in the interfaces that i have to test it, deploy it in main net and set the correct contract in the interfaces.

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    We are a software company that leverages the power of blockchain technology for supply chain traceability (so no crypto stuff). We want a very futuristic website that has more focus on the technology (we will build a different one for the companies who will use our software that is more simple). This will be our technical website where we also put our API documentation etc.; We are currently activ...

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    I need someone who can install complete [login to view URL] on my AWS server. You must have to have past experience about installing exchange. Exchange Liquidity Referral Multi language HOT/Cold Wallet erc20

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    Looking for long term developer team for the new project. 1. Liquidity 2. 5 crypto Market - BTC,ETH,LTC,USDS, XRP 3. 20 ERC20 coins to be listed 4. New dark and light UI design (binance basic) 5. Admin Panel must have the listing function and adding market pair function. 6. Referral function needs to add and there should be manage function like 30%,50%80% as per admin mind. My budget is 200$ now...

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    Before we move on please show me a demo of your work - centralized exchange platforms! We are looking perfect cryptocurrency exchange which you developed before so we can buy and launch by tomorrow!

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    Blockchain Content Writer 8 hours left
    VERIFIED

    Must have Financial Domain Exp MUST HAVE WRITING EXP MUST HAVE TECHNICAL WRITING EXP MUST HAVE EXP WRITING ON BLOCKCHAIN, SECURITIZATION ETC TOPICS THIS IS LONG TERM ROLE PREFERRED FROM USA, CANADA OR INDIA

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