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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    39 jobs found, pricing in USD

    Let me know if you have the needed amount , so we can discouss for more how to proceed !

    $30 (Avg Bid)
    Guaranteed
    $30
    0 entries

    We need an ICO Wallet that works on Ethereum Smart-Contract

    $201 (Avg Bid)
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    6 bids

    Hello! I need a script crypto exchange, just looking for a ready solution. Before buying, I need to watch a demo! I do not need to develop from scratch, such a proposal please do not write to me!

    $1312 (Avg Bid)
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    27 bids
    Bitcoin jackpot site 6 days left
    VERIFIED

    Looking for partner (paid small amount while working and then site revanue) I want a bitcoin jackpot site (script) Players register and deposit btc. They then ret credit on the site to use in the jackpot. Jackpot is timed so Player can join in and try win the pot. Site profit is 10% of each played game. Dont reply of you havent read it all. Dont reply og you dont Know what bustabit crash gam...

    $70 (Avg Bid)
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    3 bids

    Here Its Example How Should Look And Should Be The Exchange The UI/UX Check Website Before Bid if u can make like this okay : [login to view URL]

    $4634 (Avg Bid)
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    34 bids

    I need to generate new genesis block insted of current one for POW/POS cryptocurrency, with new vAlertPubKey and scriptPubKey all instruction and steps should be include. award will be according to best price

    $157 (Avg Bid)
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    5 bids

    We are looking for Ethereum Smart Contract developers who has god grip on Solidity language to write contracts and trigger events

    $41 (Avg Bid)
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    2 bids

    Build a Mining Pool Website Like [login to view URL] [login to view URL]

    $152 (Avg Bid)
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    7 bids
    crypto exchange 6 days left

    Hello! I need a script crypto exchange, just looking for a ready solution. Before buying, I need to watch a demo! I do not need to develop from scratch, such a proposal please do not write to me!

    $1404 (Avg Bid)
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    40 bids

    I am looking for ocaml blockchain expert

    $624 (Avg Bid)
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    23 bids

    Section 1: Final points to be verify and fix if any issues 1) SMTP to API for email via [login to view URL] api 2) Email and SMS notification alert for message from trade related 3) Validations in Register page 4) Multiple user session lock 5) Session Hijacking 6) Update mobile no otp verification 7)Sign In link expire on click for sign in 8) Ledger proper in User and Admin Dashboard Section 2: ...

    $39 (Avg Bid)
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    1 bids

    Hello. I am looking for experienced oclam developer. Have to know blockchain, prototcols, c++.

    $544 (Avg Bid)
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    22 bids

    I'm trying to modify pool codes in a mining pool using SHA 256 and redeem the hashes in another coins . Basically my device only process SHA 256 but wondering if we could program the pool to convert the algorithm ? please contact me if you have experience in this filed. my method of payment is by creating milestones and release it once the task was completed . had lots of good reviews so far...

    $461 (Avg Bid)
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    A blockchain engagement platform designed to be a nexus for blockchain education, networking, enterprise collaboration and talent discovery. It is a six month project with a fixed pay every month.

    $2983 (Avg Bid)
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    13 bids

    Building supply chain management using blockchain for super market

    $28 / hr (Avg Bid)
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    17 bids

    ERC20 token listing with 1 - 2 eth budget.

    $539 (Avg Bid)
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    23 bids

    hello! we are looking for people who can get us a decentralized crypto exchange you can looking at this website [login to view URL]

    $2425 (Avg Bid)
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    12 bids

    Need a Full stack developer who have some basic knowledge about cryptocurrency, blockchain, and are familiar with the following stack: Node.js, React.js, Redux , AWS, DynamoDB, the ideal candidate should have worked with several successful projects, is an ***excellent front-end developer*** The brokerage needs to have a payment mechanism for depositing the fund, as well as a dashboard for viewing...

    $17 / hr (Avg Bid)
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    45 bids

    We have an ERC20 token and we want a legal opinion to ensure it's a utility cryptocurrency. Please don't bid if you are inexperienced with this task.

    $639 (Avg Bid)
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    10 bids
    cryptocurrency 4 days left
    VERIFIED

    i want to create a cryptocurrency for payment.

    $578 (Avg Bid)
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    23 bids

    I'm fonder of ALFASSA ( [login to view URL] ) and I need a BlockChain's programmers

    $8587 (Avg Bid)
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    23 bids

    I am looking for a blockchain developer experienced in setting up Electrum wallets. Project's description and features is attached.

    $331 (Avg Bid)
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    11 bids

    Hi. I am going to develop new blockchain. I will share details for right freelancer.

    $1025 (Avg Bid)
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    32 bids
    Needed ERC20 token Service 3 days left
    VERIFIED

    We need ERC20 token Service Developer. We are looking for a highly skilled developer who can provide us ERC20 Services. We are looking for • Get Balance • Token Send/Receive • Token Address Generation • Transaction History Please Note: • You will need to handover the full development source code to us. • Should be developed with PHP CodeIgniter. • We need the se...

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    18 bids

    1. Create a masternode coin like pivx 2. Create block explorer 3. Create QT wallets ( Win - 32-64, Linux, Mac ) 4. Publishing source code in github [login to view URL] masternode guide 6. guide to install the seednode Please note : I require only professional developers , I will first check if the coin chain is smooth or not I mean no bugs in the coin or proof of stake

    $569 (Avg Bid)
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    We need to develop and execute a training program in Blockchain

    $525 (Avg Bid)
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    13 bids

    Looking to get an app built on the EOS blockchain that allows riders to receive tokens for their driving service similar to UBER in the Cleveland area. Must have understanding of GPS.

    $4374 (Avg Bid)
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    27 bids
    Cleveland, Ohio EOS Uber App 2 days left
    VERIFIED

    Looking to get an app built on the EOS blockchain that allows riders to receive tokens for their driving service similar to UBER in the Cleveland area. Must have understanding of GPS.

    $2370 (Avg Bid)
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    15 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)
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    41 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...

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    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...

    $1985 (Avg Bid)
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    41 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

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

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    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)
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    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]

    $81 (Avg Bid)
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    10 bids
    fix bug on API 21 hours left
    VERIFIED

    i need a minor bug fix on coinspayment API.

    $49 (Avg Bid)
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    25 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 ...

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    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.

    $761 (Avg Bid)
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    21 bids
    Create a new Crypto Currency 16 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.

    $3408 - $5680
    Featured Sealed NDA
    $3408 - $5680
    63 bids

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