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

Filter

My recent searches
Filter by:
Budget
to
to
to
Type
Skills
Languages
    Job State
    152 jobs found, pricing in USD

    Need to take forward a demo version of NFT marketplace to production quality. Demo is built with [login to view URL], solidity on MATIC chain. Need a fresh implementation of GraphQL and storybook for component management. Indegrate deployment pipeline with the GH project using CircleCI. Current functionality includes a Home page, Mint NFT on testnet (Creator page), Buy page, Sale page, connect to...

    $336 (Avg Bid)
    $336 Avg Bid
    1 bids
    Blockchain app developer 6 days left
    VERIFIED

    I need a blockchain developer preferred on Ethureum. The app would have two interfaces: First interface an admin person stores some details about a particular user on the ledger. (say name, DOB and another text details)... protected by a password. Second interface is used by anyone to search the ledger and retrieve details about someone. They could search using individual ID or some sort of iden...

    $378 (Avg Bid)
    $378 Avg Bid
    10 bids

    Hi, I am looking for Blockchain Developer with Pancakeswap Experience. Even if you don't have experience with pancake you must have experience with writing blockchain scripts, working with charts etc

    $250 - $750
    Sealed NDA
    $250 - $750
    2 bids

    I need a new website. I need you to design and build a landing page.

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

    Hello, We are a website that offers a service where users can earn an ingame currency of a popular game called ROBLOX by completing surveys and downloading apps on our website. We want to add another earning option on our website that lets our users download a miner app, which lets them mine cryptocurrencies on their PCs by using their graphics card. For each amount of money the user mines for u...

    $3551 (Avg Bid)
    NDA
    $3551 Avg Bid
    9 bids

    Need a front running smart contract to detect transactions on the liquidity pools, and attack other people orders by increasing the gas fee, then sell the order in the same block or the next block. The contract needs to be 100% free of losses, we will discuss more details if anyone interest in this job.

    min $50 / hr
    min $50 / hr
    0 bids

    **ONLY KOREAN CITIZENS APPLY** As stated above, we are looking for a Korean ONLY citizens who will help us validate/confirm certain information/questions about cryptocurrency projects and write the answer in already pre-made document. Working on this project doesn't involve in exchanging cryptocurrencies nor paying outside of the Freelancer platform. The task is very simple and easy to do.

    $375 (Avg Bid)
    $375 Avg Bid
    2 bids

    Looking for someone with experience working with trc20/erc20. The product - crypto currency payment gateway that accepts usdt to internal trc20 wallets. Customers will transfer USDT into our wallets then we will need to be alerted programmatically. Then the platform should be able to transfer from the internal wallet to a specific trc20 address programatically as well. The payment flow will be ...

    $10 - $750
    Sealed NDA
    $10 - $750
    2 bids
    Mobile Coding 6 days left

    Greetings.. I am seeking a seasoned blockchain coder for a simple solidity project. I have all of the guides and even videos needed. I would like to have this small project completed in roughly a few hours.

    $538 (Avg Bid)
    $538 Avg Bid
    13 bids

    Hi, freelancers. I am in need of experienced blockchain developer who need to conver smart contract from BSC to Polygon (solidity). If you are able to do, please apply. Thanks.

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

    purpose is to transfer funds from - multiple addresses to another address and - a single address to multiple addresses explanation: if I have any erc20 or trc20 token on my multiple addresses and I want to transfer that token from my multiple addresses to a single address. And the second thing is if I have any token on my single address and I want to transfer (distribute) to multiple addresse...

    $292 (Avg Bid)
    $292 Avg Bid
    7 bids

    We are planning to do token sale for our crypto [login to view URL] need manager to manage our affiliate campaign. Requirements: [login to view URL] very familiar with crypto affiliate networks [login to view URL] our affialite offer on various powerful network websites [login to view URL] active affilates to promote our project [login to view URL] experience on affiliate and social media marke...

    $103 (Avg Bid)
    $103 Avg Bid
    3 bids
    Build erc721 tokens 6 days left
    VERIFIED

    We need to buid erc721 tokens with Openzeppelin Tutorial [login to view URL] Don’t bid if you charge more than 100 usd and cannot do in one day.

    $208 (Avg Bid)
    $208 Avg Bid
    8 bids

    I am looking for something simple and easy, buy order then sell when the price is x% more. It will be on the hotbit exchange. (p.s. I am looking just for how the orders are executed, I already have the rest of the algorithm) Is any question please contact me. Documentation=[login to view URL]

    $27 (Avg Bid)
    $27 Avg Bid
    4 bids
    Solidity Uniswap Expert 6 days left
    VERIFIED

    Need a Solidity Uniswap Expert

    $17 / hr (Avg Bid)
    $17 / hr Avg Bid
    15 bids

    Need a copywriter to write a whitepaper about blockchain. Contact for details?

    $44 (Avg Bid)
    $44 Avg Bid
    19 bids
    Full NFT Project 6 days left
    VERIFIED

    Complete NFT Project Require experience developer who has worked on NFT projects previously. Must have the full ability to do 1] FULL DEPLOYMENT 2] FULL TOKENISATION of the NFT. Potential NFT Marketplace is the last option. However stages 1 and 2 are a must.

    $1564 (Avg Bid)
    $1564 Avg Bid
    16 bids

    Need a copywriter to write a whitepaper about blockchain. Contact for details?

    $38 (Avg Bid)
    $38 Avg Bid
    11 bids

    I want to be a system very similar like this: [login to view URL] and I will love to build it on Blockchain technology

    $2379 (Avg Bid)
    $2379 Avg Bid
    33 bids

    Need a copywriter to write a whitepaper about blockchain. Contact for details?

    $38 (Avg Bid)
    $38 Avg Bid
    11 bids
    QWERTY APP 5 days left

    Need an app developer who is an expert in block chain tech. please respond asap

    $201 (Avg Bid)
    $201 Avg Bid
    6 bids

    Looking for a front end developer to do freelance work on our crypto portfolio tracker. Q: We already have something up and running so you would be building off existing code is that an issue? Ans: ? Q: Is Vue.js an issue for you? Ans: ? [login to view URL] We have a few features we would like to build out.

    $10 - $750
    Sealed NDA
    $10 - $750
    4 bids

    I just need a website with the file attached below as a background and a mint button in the middle with a counter from 1-20 which allows the user to connect with MetaMask and mint NFTs from our website pulling from a contract on the Ethereum mainnet.

    $167 (Avg Bid)
    $167 Avg Bid
    22 bids

    Hi, I am looking for Blockchain Developer with Pancakeswap Experience. Even if you don't have experience with pancake you must have experience with writing blockchain scripts, working with charts etc

    $250 - $750
    Sealed NDA
    $250 - $750
    6 bids

    Good day, Developers! I'm searching for a team or a single developer who can assist me in developing a crypto casino with the features described below. This project has a timelime between 6 and 10 months to complete, with a maximum expenditure of $100,000. If you have experience in this industry and can show me proof, I will pay you more than my maximum budget. - The creation of a website ...

    $56169 (Avg Bid)
    NDA
    $56169 Avg Bid
    31 bids

    Connecting Bitcoin Checkout to Bitcoin core Server with JSON RPC. Need the setup on the server side, probably about 5 minutes work when u know how to do it.

    $228 (Avg Bid)
    $228 Avg Bid
    9 bids

    Looking for someone who can add wallet to existing site.

    $116 (Avg Bid)
    $116 Avg Bid
    6 bids

    I have my own cryptocurrency on pancakeswap. How can I cash it out at the rate indicated on [login to view URL] ?

    $30 (Avg Bid)
    $30 Avg Bid
    2 bids

    Completely Redesign the website and dapp with one coherent theme. Sites we like include [login to view URL] [login to view URL] safemoon.net. We do not want a space theme, the design must be best in class and fit with our brand. We are seeking an experienced Full Stack Developer with exceptional graphic design skills and attention to detail.

    $2578 (Avg Bid)
    $2578 Avg Bid
    79 bids
    FULL BSC CONTRACT AUDIT 5 days left
    VERIFIED

    Full BSC Contract Audit Required within 24 hours FULL REPORT FULLY DETAILED FULL TESTING as discussed FULL SCOPE OF AUDIT COVERED FULL ANALYSIS

    $22 / hr (Avg Bid)
    $22 / hr Avg Bid
    15 bids

    Hi everyone , Looking for an expert in eth , im thinking to start an investment in cryptocurrencies and i want who can advice and provide me eth to start with , thanks

    $508 (Avg Bid)
    $508 Avg Bid
    44 bids

    Looking for someone with experience working with trc20/erc20. The product - crypto currency payment gateway that accepts usdt to internal trc20 wallets. Customers will transfer USDT into our wallets then we will need to be alerted programmatically. Then the platform should be able to transfer from the internal wallet to a specific trc20 address programatically as well. The payment flow will be ...

    $10 - $750
    Sealed NDA
    $10 - $750
    4 bids

    We are in need of Crypto wallet that support smart chain .. we would prefer ready to go solution. We have recently launched our token and it is listed on pancakeswap Our token is based on smart chain We need a wallet where, -User can see the total worth of their holding tokens in USDT/INR in main balance ( right now our token is listed only on pancake swap , let us know If you can use p...

    $1773 (Avg Bid)
    $1773 Avg Bid
    8 bids

    I'm looking for Binance blockchain development using [login to view URL] and Solidity. I want to be able to connect my front-end with a smart contract. I am hosting a pre sale/ whitelist today on my website. I would like white listed participants to be able to send in their contributions directly from my website. If you understand what I need I will send you the code source and I will send yo...

    $687 (Avg Bid)
    $687 Avg Bid
    11 bids

    I need you to design and build it.

    $21 / hr (Avg Bid)
    $21 / hr Avg Bid
    18 bids

    We have our own cryptocurrency exchange. and we have our own blockchain software. Our blockchain is the same as bitcoin and litecoin. Made with forking. There are bitcoin and ethereum nodes on our exchange. But we cannot connect the nodes of our own blockchain to our exchange.

    $186 (Avg Bid)
    $186 Avg Bid
    10 bids

    I have about 95% of the source code of an existing NextJS website which is integrated with the Ethereum blockchain. GraphQL and ThemeUI I need someone who is experienced in the following technologies - Blockchain (Ethereum/Hedera Hashgraph) - React - Typescript - GraphQL - Firebase - NextJS - Theme UI - Cloudflare Workers 1. Investigate the source code and integrate with firebase, including DB,...

    $412 (Avg Bid)
    $412 Avg Bid
    33 bids

    We have require a developed DApps developer for stacking program on tron network.

    $329 (Avg Bid)
    $329 Avg Bid
    7 bids

    Hey , i am looking for an app version of similar to 1inch. [login to view URL] let me know if anyone’s available to work let me know

    $800 (Avg Bid)
    $800 Avg Bid
    6 bids

    we need to develop a smart contract for token send It is BEP20 [login to view URL] need to send our tokens to multiple walllet addresses at the same time [login to view URL] to make sure successful test on testnet ,then mainnet. [login to view URL] from CSV file 3.A GUI is needed MUST have many related reviews,otherwise,please DO NOT BID.

    $301 (Avg Bid)
    $301 Avg Bid
    11 bids

    I need a professional blockchain developer for my current project. Please place a bid in my proposal. I will provide the requirements to you in chat

    $1158 (Avg Bid)
    $1158 Avg Bid
    6 bids

    We are going to add a “Buy Button” to our website* that is transparent to the new users. The expectation is “inexperienced/first-time Cryptocurrency” buyers can buy our new token painlessly. We Will need a smart contract that requires the first transaction – enter total “dollars”, log into the “wallet” site, add a new account, provide a secret ...

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

    Hi, I am looking for Blockchain Developer with Pancakeswap Experience. Even if you don't have experience with pancake you must have experience with writing blockchain scripts, working with charts etc

    $250 - $750
    Sealed NDA
    $250 - $750
    8 bids

    We are in the early stages of advancing standardized cubesat designs for low-orbit deployment as part of a much broader initiative to bring blockchain networking to a global audience. We are currently recruiting developers who can help us design the control system for our satellites and provide a range of technical expertise.

    $66 / hr (Avg Bid)
    $66 / hr Avg Bid
    6 bids

    I need someone to create a Crypto currency purchasing tool that can purchase new crypto tokens during new farm launches and make changes to the tool once created and allow modifications to various different tokens etc when listing takes place. Will need 2 different tools, one will need to work on Harmony (ONE) network Shard 0 The 2nd will need to work on BSC Mainnet.

    $147 (Avg Bid)
    $147 Avg Bid
    8 bids

    Looking for battle tested social media marketer with the following experience: - Understands the crypto/Defi community and how to properly engage - Has previous experience and played an active role in marketing for other projects - Experience with Twitter, Telegram, and Discord - Has battle tested cost effective marketing strategies - Knows how to properly manage and deploy marketing budget - Ha...

    $50 / hr (Avg Bid)
    $50 / hr Avg Bid
    6 bids
    Build me website 4 days left

    We are looking for a frontend developer to work with our creative team and our smart contract developer to build a react-based cryptocurrency website (a fork of [login to view URL]). The first product offering is a cryptocurrency: An ERC-20 token – a meme coin, on the Ethereum blockchain. OUr Token places a transaction fee of 10% on all buying and selling activity, with 6% rewarded backto ho...

    $217 (Avg Bid)
    $217 Avg Bid
    18 bids

    I am looking for a Blockchain developer who knows SOLIDITY . I am planning to launch a Token in polygon matic network.

    $170 (Avg Bid)
    $170 Avg Bid
    5 bids

    I am looking for a Blockchain developer who knows SOLIDITY . I am planning to launch a Token in polygon matic network.

    $94 (Avg Bid)
    $94 Avg Bid
    2 bids

    We need BSC Smart contract for BSC Token with following Features. 1 ) auto lp 2 ) auto burn 3 ) monthly BNB reward 4 ) reward on transaction 5 ) 2 different marketing wallet Features of 1st marketing wallet - Certain percentage of transaction amount should go to this Wallet in terms of bnb Features of 2nd marketing wallet - Certain percentage of transaction amount should go to this Wallet in te...

    $87 (Avg Bid)
    $87 Avg Bid
    1 bids

    Top Blockchain Community Articles