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
    88 jobs found, pricing in USD
    Fix my Website issues 6 days left
    VERIFIED

    Hi I have a website and app based on blockchain I need you to check the errors tell me and clear those issues till today.

    $143 (Avg Bid)
    $143 Avg Bid
    3 bids

    adjust staking website funtion add more pare to stake add transaction in db add more lock date selection

    $163 (Avg Bid)
    $163 Avg Bid
    24 bids
    Opensea Collection Bid 6 days left
    VERIFIED

    Hello I would like someone to assist me in create a node js application to make collection bids in Opensea The function will take , the collection slug , price and duration as inputs and successfully make the offer. The perferred way is through the RPC node direcly rather than through the seaport API. To be successful for this job please reply answer these you questions: 1. Can you successfully make a collection bid? 2. Will you do it through the RPC node or Seaport API? thank you

    $503 (Avg Bid)
    $503 Avg Bid
    9 bids

    I need frontend developer for my page. But i don't have design, only idea. So you have to understand me with little words and make one i want. It is related blockchain, so blockchain knowledge is plus. Please share live url you have done.

    $508 (Avg Bid)
    $508 Avg Bid
    79 bids

    I need to fetch data from a token from Stellar Blockchain and when the data was fetched, it needs to be filtered and after with the filtered data, it needs to submit a transaction. I need this to be all automated with my configuration and just start it and runs for 24/7 without stop. I ll give more details in private.

    $165 (Avg Bid)
    $165 Avg Bid
    41 bids
    NFT project 6 days left
    VERIFIED

    Done with designed the nft need help with technical issues

    $31 / hr (Avg Bid)
    $31 / hr Avg Bid
    75 bids
    NFT Creation Designer 6 days left
    VERIFIED

    We need NFT Creation Developer, Sk!P3 dvskha

    $105 (Avg Bid)
    $105 Avg Bid
    18 bids
    Smart Contract Code Audit 6 days left
    VERIFIED

    Looking to bring someone to do quick smart contract code audit and fill out a form with the results. Code audits should take 30 minutes to an hour and we're looking at doing about 20 audits a month. Must be familiar with Smart Contracts and the following attributes: Contract Ownership Airdrops and Backdoors Libraries and Forks Multi-Sig implementations Tokenomics

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

    I want to trade by TP-SL mode in Phemex (crypto exchange like binance or bitmex). But I don't want to pay taker fee for trading fee. When I set order-price, order-money, TP price, SL price, then trading bot should find prices (near the prices I set before) that can be considered as maker position. In Phemex, when trading as maker position, then they give traders maker-rebate, and traders don't have to pay taker fee. I'm finding trading expert who has a lot of experiences for maker position trading. So I don't want experts who don't know about maker or taker concept.

    $613 (Avg Bid)
    $613 Avg Bid
    18 bids
    Trading website 3 hours left
    VERIFIED

    We are looking for a freelancer who can build a complete new platform for us which allows my customer to buy and sell trading stocks and cryptocurrency. The end user would like to specify which stocks need to be followed and then it needs to import history trends/information as well that my end user should be able to specify potential trends. He should be able to say that the program should automatically buy stock when it reaches a specific percentage or amount as well that he should be able to say to the program that it should automatically sell stock if it reaches a certain amount/percentage. It should automatically work. The program should be reachable on the internet but with high security constraints.

    $9686 (Avg Bid)
    Urgent NDA
    $9686 Avg Bid
    59 bids

    I am looking for a blockchain developer for my NFT project. It is start. In the future, I will make you busy.

    $934 (Avg Bid)
    $934 Avg Bid
    31 bids

    I am looking for someone who can work on NFT and related services

    $536 (Avg Bid)
    $536 Avg Bid
    23 bids

    Need code on how to mine monero on AWS, something similar to this:

    $164 (Avg Bid)
    $164 Avg Bid
    15 bids

    Hi We need an Blockchain expert to help us make our game compatible for web3.O and add few NFT elements.

    $35 / hr (Avg Bid)
    $35 / hr Avg Bid
    37 bids

    I need talent bridge & mulitsignature expert in blockchain side.

    $771 (Avg Bid)
    $771 Avg Bid
    29 bids
    Nha Coin usdt -- 2 5 days left
    VERIFIED

    Hi I need only person who use nha coin wallet because need help to withdraw. if anyone use please send us a message only NHA COIN Deposit is working fine but withdraw is only show to audit can anybody explain what happen or complete this project successfully.

    $412 (Avg Bid)
    $412 Avg Bid
    4 bids

    The pool already running and config as PROP Auto generator now: FPPS or PPS+ auto generator payments method configure and setup If you have done it before please massage me and we talk about it. Requirement: ****Experience Done it before - Must be Expert in YIIMP mining pool.**** Please Don't Bid if you had no experience in YIIMP. ***Enable to start project in12hour. **** No milestone **** Full Payment after checking project. ****Max budget : 80$**** Auto bot BID & Higher BID will be removed.

    $77 (Avg Bid)
    $77 Avg Bid
    7 bids

    Building a test network to run various application in hyperledger environment. Will need a technician to manage and administer this on a monthly base.

    $150 (Avg Bid)
    $150 Avg Bid
    14 bids

    Hi i want to make an crypto wallet exchange and a crypto coin so i need a good team or individual who can handle the work

    $2140 (Avg Bid)
    $2140 Avg Bid
    21 bids
    Nha Coin usdt 5 days left
    VERIFIED

    Hi I need only person who use nha coin wallet because need help to withdraw. if anyone use please send us a message only NHA COIN Deposit is working fine but withdraw is only show to audit can anybody explain what happen or complete this project successfully.

    $433 (Avg Bid)
    $433 Avg Bid
    6 bids
    NFT developer 5 days left
    VERIFIED

    Looking for NFT developer for my website

    $1488 (Avg Bid)
    $1488 Avg Bid
    48 bids

    Context: 1)I have 10,000 NFT Images already created 2)I have 10,000 Metadata files already created What i need: 1)I need someone to create a minting DApp for a website which is compatiable with opensea 2)The smart ethereum contract will need to split 25% and 75% of the intial sale price between two wallets and also split any future royalties between two wallets 50/50. You will need to help guide me through the launch process that you think will be good and must have worked on this type of project before and also happy to help with future development requirements. At the moment all i am after is bids so i can see how much it will cost, please confirm by saying "i understand".

    $617 (Avg Bid)
    $617 Avg Bid
    78 bids
    Building a Web3.0 Platform 5 days left
    VERIFIED

    Need solidity smart contracts written. Need a web3.0 connection to wallet connect, metamask and other wallets. Need website to allow escrow. Will say more after non-disclosure

    $2210 (Avg Bid)
    $2210 Avg Bid
    76 bids

    I wonder if you can develop a web platform with the following requirements: The website (platform) should be developed to AUTOMATICALLY RUN and sell the Proof of Priority registration services by making the registrations on blockchain. It will work as follows in the user's view: 1- The user makes the registration on the Site - click on the "Register" menu. 2- When accessing the platform (site) again, access through the login menu. 3- The user makes the purchase of credits via PayPal (or credit card) required for registration. 4- Then informs the data of the record holder, type of record, title and description. 5- The platform AUTOMATICALLY checks if the user has enough credits for the service. 6- Then it releases the user to continue the service request. 7- The user selects ...

    $257 (Avg Bid)
    $257 Avg Bid
    8 bids

    Need code on how to mine monero on AWS, something similar to this:

    $161 (Avg Bid)
    $161 Avg Bid
    14 bids

    We need someone to help code some algos for our tradingview trading site. We need the algos to be able to use webhooks to trade from a user account. Please reply if you have worked on such projects.

    $533 (Avg Bid)
    $533 Avg Bid
    30 bids

    Looking for Blockchain developer for NFT website. More details in chat

    $1729 (Avg Bid)
    $1729 Avg Bid
    45 bids
    Trophy icon BSC 20 Payment 1 day left

    please go to - connect your metamask and check out the subscriptions that can be bought using the BSC20 Token $AET. There are 3 subscription levels, all three should be working and executable on Windows PC, Mac OS, iOs and Android always using Metamask plugin and/or Metamask App Browser (if mobile).

    $255 (Avg Bid)
    Guaranteed
    $255
    4 entries
    Need Airdrop Telegram Bot 4 days left
    VERIFIED

    FEATURES = Airdrop Task, Balance, Referral System, Withdraw Button, Bonus Button, Presale Button, Spreadsheet. Default airdrop bot steps: Bot sends all airdrop information Bots can send captchas image/math when users join Airdrop all tasklist Then the user presses the "Join Airdrop" button. Bot asks: User Must Join Telegram Channel & Group Bot sends all airdrop tasklist Bot ask submit your username BEP-20 crypto wallet address or other wallet address Bot ask did you completed all social media task Get referral links to invite users and get more rewards.

    $222 (Avg Bid)
    $222 Avg Bid
    7 bids
    New NFT Game 4 days left

    I am going to make a fantastic NFT Game Website on my own. Actually looking for a developer who has experience in building NFT Games before. Here is a NFT game "Dragonary". My brother likes this game very much, but it is desktop app and it has got a problem in its logic. I'd like to have a wonderful game. Please send me your proposals if you are interested in my project. Do not waste my time. I hope to talk with only who has understood my project and got my game's general logic. Please write down your opinion about this game on your proposal or simply append the url or video of your similar project. Will share more details via chat and will start working immediately.

    $2210 (Avg Bid)
    $2210 Avg Bid
    29 bids

    i want someone to build a 9gag style page that will allow people to connect with a web3 wallet and post memes, upvote,downvote,comment and share their post and few more things .

    $209 (Avg Bid)
    $209 Avg Bid
    42 bids
    Upload my NFT's on Opensea 4 days left
    VERIFIED

    I have approx 5000 NFT which has 8 original images and 4672 Other Images. also, I already created metadata and uploaded it on Pinata Cloud. so just want an experienced blockchain developer who can create a smart contract and upload it ETH blockchain. where 8 original images will be always on top

    $27 (Avg Bid)
    $27 Avg Bid
    10 bids

    We need professional solidity developers who work in our project , our project have to need new solidity developers for better chain and better utilities

    $7 (Avg Bid)
    $7 Avg Bid
    1 bids

    Our team based in US are gonna add two Golang developers for some big project. Payment is on Hourly rate and it is $30~$45. Please apply to this job if you are affordable this rate and it is one year contract. Please attach your Resume with your experiences in Golang. Thank you.

    $38 / hr (Avg Bid)
    $38 / hr Avg Bid
    28 bids

    I wonder if you can develop a web platform with the following requirements: The website (platform) should be developed to AUTOMATICALLY RUN and sell the Proof of Priority registration services by making the registrations on blockchain. It will work as follows in the user's view: 1- The user makes the registration on the Site - click on the "Register" menu. 2- When accessing the platform (site) again, access through the login menu. 3- The user makes the purchase of credits via PayPal (or credit card) required for registration. 4- Then informs the data of the record holder, type of record, title and description. 5- The platform AUTOMATICALLY checks if the user has enough credits for the service. 6- Then it releases the user to continue the service request. 7- The user selects ...

    $910 (Avg Bid)
    $910 Avg Bid
    45 bids
    simple dApp for Algo? 3 days left
    VERIFIED

    We need to build a dApp that will let us (or an authorized user) select items to lock up for another person to be able to come claim. Should be able to select an available ASA token or ASA NFT and lock it for another user by either wallet address OR if a wallet holds a certain ASA (NFT) (assign X asa to X wallet address, OR assign X ASA to holder of X ASA) User that locks the items should be able to see when claimed and by what wallet, or be able to cancel at anytime (in case of error or limited time offer) it's should stay locked to claim until claimed or canceled by the person that locked it User would come to app, connect wallet and see if they are holding anything they would get a reward for, and if so, then they could claim it by signing contracts and having item opted in an...

    $323 (Avg Bid)
    $323 Avg Bid
    31 bids
    Roulette Game(Solidity SC) 3 days left
    VERIFIED

    Hello, We need a roulette game with excellent graphics, in solidity, with smart contract. Mobile based or responsive. Best Regard's VG

    $2056 (Avg Bid)
    $2056 Avg Bid
    19 bids
    Crear token ERC-20 -- 2 3 days left
    VERIFIED

    Busco experto en blockchain que me ayude a crear smart contract y token ERC-20 en Etherum.

    $163 (Avg Bid)
    $163 Avg Bid
    58 bids

    We require a smart contract developer for a BEP-20 with integrations to service modules from ChainLink. The project is expected to last for 3-4 weeks. Flat-rate payment, future employment opportunities available.

    $41 / hr (Avg Bid)
    $41 / hr Avg Bid
    30 bids

    There is a requirement for the rfollowing: #1 Create NFT + Gift Cards with Utility #2 Launch limited edition NFTs to drive Referrals through the provision of incentives Please provide the following info with your bid. - How you would implement the above - Timelines/milestones Further information can be provided as required

    $872 (Avg Bid)
    $872 Avg Bid
    37 bids

    I am looking for an experienced developer who can work on the Solidity, Blockchain, and another buy/sell features using the API. Implement Buy, Sell (redeem) functionality to Dapp crypto Implement Buy, Sell Crypto with Fiat Infura The Infura API suite provides instant access over HTTPS and WebSockets to the Ethereum network. IP Blocking Restricted

    $100 / hr (Avg Bid)
    $100 / hr Avg Bid
    54 bids

    I need metamask connection with front end development and smart contract on it What i need After metamask connection was done User must have my nft then my page will be unlocked I attached the files you can see what steps i need to follow

    $68 (Avg Bid)
    $68 Avg Bid
    21 bids

    I'm in need of a cryptocurrencies professional

    $512 (Avg Bid)
    $512 Avg Bid
    44 bids

    This project is based on Hyperledger fabric and NFT tokens . Check the below attached files for Abstract and detailed description .

    $100 (Avg Bid)
    $100 Avg Bid
    9 bids

    solidity ^0.8.11 ERC721EnumerableUpgradeable ECDSAUpgradeable EIP712Upgradeable AccessControlEnumerableUpgradeable ReentrancyGuardUpgradeable StringsUpgradeable MulticallUpgradeable IERC2981Upgradeable Please only apply if you know what the above words mean and you know how to work with them and you are available!

    $27 / hr (Avg Bid)
    $27 / hr Avg Bid
    54 bids

    Need someone who can customize BSC GETH node for TX backrunning. Right now I am 1-20+ indexes behind target tx. Need 1-5 max. *possibly to buy also professional contract sniping bot, especially if coded on golang

    $190 (Avg Bid)
    $190 Avg Bid
    9 bids

    Hi there, I need help creating a token on ICP, AVAX or one of the other blockchains that would allow for data migration, security, etc with low gas fees. Use the website and let me know if you’d be able to use any of their products on one of the blockchains with low gas fees. Need to create a token for a company that helps with data migration, data reconciliation and mata masking.

    $167 (Avg Bid)
    $167 Avg Bid
    12 bids

    I have a task to manage security documents with blockchain sign technology from my boss. I need real experience with etherem and solana net developer with and solidity for a long time. Please show me your github projects to improve your skill. Prepend (I love blockchain) in headline of your bid. Thank you!

    $20 / hr (Avg Bid)
    $20 / hr Avg Bid
    33 bids

    I am looking for wallet that stores private keys while interacting with multiple blockchains

    $850 (Avg Bid)
    $850 Avg Bid
    7 bids

    Build An Explorer for Cosmos based Project .

    $1231 (Avg Bid)
    $1231 Avg Bid
    23 bids

    Top Blockchain Community Articles