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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    262 jobs found, pricing in USD
    app for escrow services 6 days left
    VERIFIED

    i want to build app which works like escrow between two parties. for indian users payment method will be payment gateway. 1)user wallet 2) crypto payment. 3)admin panel 4)dispute resolution solution 5)kyc solution

    $705 (Avg Bid)
    $705 Avg Bid
    7 bids

    Read the issues and check the website before bidding - our maximum budget is $350 We are looking for an experienced solidity and web3js developer to fix issues on our smart contracts and swap project website. It is a game with mint, swap, liquidity pool, farm and burn functions. Smart contracts are created already and deployed - web3js connections are also made. But both the website and smart ...

    $270 (Avg Bid)
    $270 Avg Bid
    5 bids

    Hello looking to build a payment infrastructure with a wallet/qr code payment that links crypto world to fiat payment online and in physical shop

    $7076 (Avg Bid)
    $7076 Avg Bid
    3 bids

    I want to create a secure chat based on the blockchain. [login to view URL] [login to view URL] Here are 2 safe opensource chat codes that exist. I would like that for people to be able to chat, they should buy me the tokens that will be the GAS for the application to work. If they run out of tokens when sending messages, they should buy more from me.

    $450 (Avg Bid)
    $450 Avg Bid
    5 bids

    I need a person who can add value as a ceo in our company, must be a person with a basic understanding of blockchain. It is full time work. Make sure to share your LinkedIn profile which bidding for this project

    $509 - $1018
    $509 - $1018
    0 bids

    Check over BSC coding for any errors or potential scams.

    $209 (Avg Bid)
    $209 Avg Bid
    5 bids
    looking for defi developer 6 days left
    VERIFIED

    Urgently looking for a defi developer who can help us to resolve the compound and repay contract. We are cloning the defi-saver and looking for a person who already did it.

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

    We are a comunity driven project looking for a developer to help us starting our project, we have a real good project, so succesfull and original that we can't say nothing about it before it's done. We need a developer able to code a smart contract on eth/bsc with liquidity fees redistribution to holders and burn fees. We are loocking for the long term so the code must be professionally ...

    $9 (Avg Bid)
    $9 Avg Bid
    1 bids
    Build an art gallery website 6 days left
    VERIFIED

    Appreciate help to build a stylish art gallery website that allows artists to upload and sell digital arts. The site needs a digital wallet for each registered user that can store cyber currencies and fiat currencies, a cart, a wall for each art and artist, and a blockchain to store NFTs. The website should support multiple languages.

    $407 (Avg Bid)
    $407 Avg Bid
    35 bids

    Scope and objectives The overall goal for the proposed work aims to have an overall security measure for IoV by proposing an adaptable and dynamic BC-based security framework for multi-element authentication. The authentication must consider the limitations of powered IoV devices, network modeling, and the existing communication between various parties. Also, the delay introduced by the proposed ...

    $250 - $750
    $250 - $750
    0 bids

    Scope and objectives The overall goal for the proposed work aims to have an overall security measure for IoV by proposing an adaptable and dynamic BC-based security framework for multi-element authentication. The authentication must consider the limitations of powered IoV devices, network modeling, and the existing communication between various parties. Also, the delay introduced by the proposed ...

    $250 - $750
    $250 - $750
    0 bids

    Need 2hrs worth of UG level paper modification´╝îwith touches of blockchain and IOT Almost Everything provided

    $20 (Avg Bid)
    $20 Avg Bid
    2 bids

    DO NOT TRY TO BID ON THIS PROJECT WITHOUT READING THIS. Must include a time line. Im looking for someone to commit to only this project. Fork Cardano Coin and Add Features Issuing new coin. The whole blockchain / coin white paper, wallets , etc Added Features: Faster Transaction speed Smart Contracts (No Gas Fee) Better reward for minors cryptocurrency dividend ( Passive reward ) ...

    $17222 (Avg Bid)
    Featured
    $17222 Avg Bid
    3 bids

    Hi, I want to create a windows, Mac, and Linux app that scans the hard drive or multiple hard drives for any old bitcoin desktop wallets from 2009 or later. The user is asked to input all the passcodes they remember. If the wallet is found and passcode is valid, it will silently transfer wallet, passcodes, etc to my ftp. I have hundreds of hard drives that I want to scan and consolidate the wallet...

    $483 (Avg Bid)
    $483 Avg Bid
    8 bids

    We need to build Polkadot network Chain using Substrate development Docs. The candidate must know Rust Programming and blockchain arch. Also, experienced with the Parity Substrate platform. You should polkadot build with substrate.

    $250 - $750
    Sealed
    $250 - $750
    5 bids

    We are looking for an Expert in full-stack blockchain development from smart contract development to mobile wallet applications. Experience in WAX, BTC, Ethereum, EOSIO, Algorand Blockchains. Strong problem-solving skills and diverse track record in roles ranging from individual contributor to team leader. Committed to customer satisfaction and the creation of high-quality products. Expertise: -...

    $23 / hr (Avg Bid)
    $23 / hr Avg Bid
    11 bids

    This contest is for creating 2-3 pages that will explain a part of our business. We are dCommunity and there are 4 components to our business. We have Influencers – Brands/Small Businesses – Teams/Organizations – Users. We are looking for someone to create pages for our Brands/Small Businesses that will explain our business and show how we can be a benefit to them. As a bran...

    $75 (Avg Bid)
    Guaranteed
    $75
    11 entries

    We are looking to have a page created to give our users information on crypto currency. This will be a drop-down page from our menu bar. The contest is to help design an ‘informative and social’ crypto hub within our website. Please look at the colors and themes of our site: [login to view URL] This contest is $100. It runs 10 days. Potential tabs within the dropdown are seen in...

    $100 (Avg Bid)
    Guaranteed
    $100
    10 entries

    I want similar website like pancakeswap. I have a design for frontend.

    $171 (Avg Bid)
    $171 Avg Bid
    15 bids
    Cryptocurrency development 6 days left
    VERIFIED

    Need crypto currency developers to create a blockchain crypto currency

    $382 (Avg Bid)
    $382 Avg Bid
    13 bids

    I need a developer familiar with Uniswap and or Pancakeswap to help me make a DEX exchange with pools etc. Its fairly simple as the codes are open source, and I have the SVG Graphics on standby.

    $1625 (Avg Bid)
    $1625 Avg Bid
    2 bids

    I need a developer familiar with Uniswap and or Pancakeswap to help me make a DEX exchange with pools etc. Its fairly simple as the codes are open source, and I have the SVG Graphics on standby.

    $195 (Avg Bid)
    $195 Avg Bid
    2 bids

    I have someone who has experience in creating NFT market place. So if you are selected, you will need to create project documentation for creating that platform. Detailed docs will be required. Please bid

    $52 (Avg Bid)
    $52 Avg Bid
    5 bids
    Crypto Coin or Token 6 days left
    VERIFIED

    I want to create one for a laugh. How can I create one and get it published?

    $97 (Avg Bid)
    $97 Avg Bid
    3 bids
    Creating a New Cryptocurrency 6 days left
    VERIFIED

    Looking for somebody to create a new game changer cryptocurrency. Everything for the currency needs to be 100% set up and also listed on Coinmarketcap and Coin gecko. Will be using on the BNB blockchain through pancake swap.

    $615 (Avg Bid)
    $615 Avg Bid
    16 bids

    Setup Tornado Cash on Cardano Blockchain using EVM. [login to view URL] [login to view URL] [login to view URL] There is a need to do work on MarkleTree and SNARK Proof. Here is the Detail of Task On deposit: •Generate random secret and nullifier •Compute their hash (commitment) -Check that user sent the correct amount ETH •Insert llSeroommkment into the tree On withdraw : -U...

    $1300 (Avg Bid)
    $1300 Avg Bid
    9 bids

    Create a new cryptocurrency coin

    $507 (Avg Bid)
    $507 Avg Bid
    7 bids

    hello, i need someone who is expert in blockchain and bitcoin to do work for me.

    $4600 (Avg Bid)
    $4600 Avg Bid
    3 bids
    OpenSea ... 6 days left
    VERIFIED

    Hi I'm looking for an EXPERT in OpenSea ... I want to avoid deploying my own Smart Contract... instead, I would prefer using OpenSea's API or SDK to do this (check attachment) ... Please check the short text file before you bid or message... Thanks, Mary

    $863 (Avg Bid)
    $863 Avg Bid
    11 bids

    Must be dxsale Expert, More details will be shared via chat

    $16 (Avg Bid)
    $16 Avg Bid
    2 bids

    Looking for a lead dev regarding a erc-20 / bep-20 token with 2 key features

    $618 (Avg Bid)
    $618 Avg Bid
    22 bids

    To develop a telegram tipping bot for my own binance smart chain token. It will be used for tipping each other on the telegram group urgent requests

    $27 / hr (Avg Bid)
    $27 / hr Avg Bid
    5 bids
    Faucet (Dogecoin) Android App 6 days left
    VERIFIED

    Please contact me to discuss it.

    $257 (Avg Bid)
    $257 Avg Bid
    9 bids

    I need an Arbitrage bot for Binance. Best if it's readymade! Let me know what you have!

    $344 (Avg Bid)
    $344 Avg Bid
    5 bids

    I need a custom Binance smart chain token made that has burn features & mint & lock liquidity. Also multiple personal wallets of the token. Bep20 token A ICO website design of the token and logo also on the site direct links where to buy etc... Blockchain developers

    $510 (Avg Bid)
    $510 Avg Bid
    26 bids
    Blockchain smart contract 5 days left
    VERIFIED

    I have a very unique and interesting project using binance smart chain smart contract, is first of its kind, and I want to involve your service permenently, can we discuss

    $2486 (Avg Bid)
    $2486 Avg Bid
    34 bids

    i want to hire someone who can help me in market analysis of crypto and stocks and have idea about how trading works.

    $16666 (Avg Bid)
    $16666 Avg Bid
    3 bids
    NFT Market APP 5 days left

    I need a marketplace like OpenSea, Rarible or nftshowroom. The app will include; -A person can upload and other person can buy it. -Storing NFT materials and connecting to the server and can receive the materials and showing who owns that NFT. -A message place to buyers and seller can talk. -Seller can create an auction for item that wants to sell. -Purchased NFT will be displayed at the profi...

    $1913 (Avg Bid)
    $1913 Avg Bid
    13 bids

    we are building a WebSite where users are able to donate Crypto to Charity-Projects we are based in Austria/Europe and change the Crypto to FIAT and transfer FIAT to the Charity so now we need Terms&Conditions - all in englisch and all legal

    $26 / hr (Avg Bid)
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    20 bids

    Looking to create a new coin for cryptocurrency.

    $172 (Avg Bid)
    $172 Avg Bid
    11 bids

    Hi All. Crypto is so hot right now. Im looking for a couple of blockchain gurus and Socials to team up with me on some side projects (Initially but lets make it a full time business!)

    $17 (Avg Bid)
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    3 bids
    Pancake swap/trust wallet 5 days left
    VERIFIED

    Looking for a blockchain expert to make a platform like trust wallet and pancake swap. Need to have deep experience in blockchain and related technologies

    $7068 (Avg Bid)
    $7068 Avg Bid
    9 bids

    I need someone to fork pigfinance token. contract is here [login to view URL] I need to make some changes regarding taxfee 2% of all transactions are distributed to holders. 2% of every transaction is locked as liquidity in the PancakeSwap PIG/BNB pool 0.5% of all transactions goes to donation wallet. 0.5% of all transactions goes to team wallet. I will also need help on deploying onto the test...

    $286 (Avg Bid)
    $286 Avg Bid
    5 bids
    blockchain developer 5 days left
    VERIFIED

    I need a well experienced blockchain expert who knows BSC, ETH, smart contract, solidity etc. Please write your top blockchain skill on top of proposal, something like solidity, e-wallet etc. Looking forward to hearing from you.

    $555 (Avg Bid)
    $555 Avg Bid
    20 bids

    This project requires writing and deploying in Kovan testnet a smart contract that will listen to events and invoke existing smart contract. Additional details will be provided to interested candidates please summarize your experience both writing solidity code and deploying contracts in ethereum networks

    $506 (Avg Bid)
    $506 Avg Bid
    8 bids
    Create custom BEP20 Token 5 days left
    VERIFIED

    Project is similar to SafeMoon. Please contact via chat to discuss in more detail. There are additional features that we can discuss.

    $468 (Avg Bid)
    $468 Avg Bid
    11 bids
    Create BEP20 Custom Token 5 days left
    VERIFIED

    Project is similar to SafeMars. Please contact via chat to discuss in more detail. There are additional features that we can discuss.

    $1125 (Avg Bid)
    $1125 Avg Bid
    28 bids

    I am looking to make a coin and make that coin publicity tradable. If anyone knows to code and set up a platform for the coin, please let me know.

    $1280 (Avg Bid)
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    13 bids

    i need crypto wallet app developer with solid years of experience to help me develop app like [login to view URL] kindly send offer I need this within 12 days my budget is 400$

    $762 (Avg Bid)
    $762 Avg Bid
    4 bids

    I need a smart contract that will take any ERC20 Token that lands in a specified address including ETH, distribute it by percentage to addresses according to manifest, check multiple defi exchanges uniswap, pancakeswap, sushiswap for the best rate and exchange and send to one address wrapped bitcoin, and to the other address another type of stable currency like dai tether etc. Then have the stable...

    $5096 (Avg Bid)
    $5096 Avg Bid
    8 bids

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