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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    82 jobs found, pricing in SGD

    I need a smart contract auditor with experience on this field. He'll join the team of a top cybersecurity firm. You can work on others project, we'll only contract you as a freelancer when audits needed but you'll be in the team only. Various audits done with us could lead to a full employment contract. Audits will be no more than $700

    $747 (Avg Bid)
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    30 bids

    Before the Development Team or Individual can do our project they must read, agree, print and physically sign our Confidentiality And Non-Disclosure Agreement Document in PDF Format and then scan it back to me via email. The Development Team or Individual must have the experience and skill in BLOCKCHAIN DEVELOPMENT. Need someone who can implement or deploy a node or apikey which will allow users to have a crypto wallet address and private keys generated in an ewallet website

    $199 (Avg Bid)
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    7 bids

    Before the Development Team or Individual can do our project they must read, agree, print and physically sign our Confidentiality And Non-Disclosure Agreement Document in PDF Format and then scan it back to me via email. The Development Team or Individual must have the experience and skill in BLOCKCHAIN DEVELOPMENT. Need someone who can implement or deploy a node or apikey which will allow users to have a crypto wallet address and private keys generated in an ewallet website

    $187 (Avg Bid)
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    6 bids
    Solana Expert needed 6 days left
    VERIFIED

    I have urgent solana project. timeline is 7 days. so, If you are really expert in this field, bid me. put "bana" at top of your bid

    $765 (Avg Bid)
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    20 bids

    Hello, We need an Blockchain developer for a web3 gaming smart contract . we're a new gaming company, playmint @ The game has a simplistic system and it a basic challenge/NFT rewards system. The image below depicts the schematic diagram, carefully go through it and let me know if you’re up for the task. Please make sure to link your portfolio to the proposal.

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    crypto payment service 6 days left
    VERIFIED

    I need a payment service when a customer pays with his Dankort that money is converted to crypto currency and sent to my crypto account

    $246 (Avg Bid)
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    I need someone to integrate Frontier EVM pallet to Substrate source code. Also help me with custom Chainspec generation also Working Template with basic substrate Tutorials available

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    4 bids
    Blockchain expert needed 6 days left
    VERIFIED

    I need a blockchain expert to do my project

    $206 (Avg Bid)
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    14 bids

    Have an idea for NFTs. Will need to design artwork from brief and follow that through to upload onto blockchain

    $737 (Avg Bid)
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    63 bids

    Hello, I am an artist who has completed all of the digital artwork for my NFT project. I have generated 4999 random images, uploaded the meta data, and downloaded the images to ipfs. I also have additional JSON files and other materials that will be discussed later on. I have gotten stuck when trying to create my contracts and upload to opensea. I am looking for someone experienced in blockchain who has launched an NFT project before and knows the how to launch in the project correctly in the most cost-effective way. I am looking to launch my project on opensea in either Ethereum or Solana.

    $746 (Avg Bid)
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    Hello, I am a graphic artist who has completed all of the art for my NFT project. I have generated 4999 images uploaded those images to IPFS and downloaded meta data. I have Json files and other materials as well that I can go over in further discussions. I have gotten stuck when it comes to deploying my contracts and uploading to open sea and I am looking for someone who can help me overcome these last finishing steps so I can launch my project. I am looking to launch my project in either Ethereum or Solana. I am looking for someone who has experience in having launched an NFT collection who can help me find the best cost affordable method too correctly launching my collection.

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    I have a plan to make a big project on solana chain. This is a long term project and I need a honest and hard working rust developer. If you are interested in this project please show your skills. Write "Really interesting" on the top of your cover letter I need only Indian, Pakistan and Bangladesh developer.

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    Will need experience with: Bitcoin Core (Bitcoin Full Node) Ethereum Full Node (ETH + DAI + others) MERN Note: Preference will be given to UK/USA/Canada/EU Send me links to recent projects that you have completed YOURSELF from scratch (do not link sites without proof of development) Create a website similar to / / Details: Build a web game website according to designs and specifications (see google doc that will be sent). Website must have - - Game (game + relevant Admin Panel data + provably fair) - Deposit and withdraw (Bitcoin) - Affiliates (Invite users for % of commission with affiliate code/link) - Level up (levels up the user and users receive rewards) - Chat (including moderators) - Responsive (Web and Mobile) - Secure and function correctly

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    Looking for expert!! Our mission is to develop a Blockchain 'Consensus Mechanism' to create 'Proof of Stake' (PoS). Following are the core working parameters: - Able to deploy Smart Contract for NFT - Create Blockchain Explorer - Create Wallet - Create NFT Uploader *System must be based on IPFS protocol Project Completion Time: 2 weeks (14 days) Message us your experience and details to discuss more details.

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    We are looking forward a senior web3 front end engineer for our company of Co:Create. As Senior Frontend Engineer, you will lead the architecture and implementation of the Co:Create frontend web-app. Users of the Co:Create Protocol will be using the frontend web-app to interact with various components of the protocol: Governance, Royalty Management, etc. This role is meant for someone who desires to have significant ownership and meaningful impact within the web3 ecosystem.

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    we just need someone to take all the assets we have and generate three separate nft collections for us.

    $191 (Avg Bid)
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    CORE Multichain is a blockchain ecosystem that will enable all blockchain projects and the blockchain space as a whole to thrive by addressing all of the most considerable limitations of blockchain technology, such as scalability and interoperability. Are you looking to be a part of a revolutionary blockchain ecosystem that will unlock blockchain technology's unexplored potential and contribute to the cryptocurrency revolution that is busy changing the world?

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    I need cryptocurrency 6 days left
    VERIFIED

    I need new cryptocurrency. Is it someone can help ?

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    Which can mint,burn.......and certainly can accept owner on BSC scan. Thanks and bird on my budget! I had make one but it can check on token sniffer same so much scam token

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    Hello, We are looking for marketing expert team for our launch project. If you have experiences of working on Defi project marketing, it would be plus. Feel free to contact us. Thank you.

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    HI, I'm looking for a dev to build a mint website with the smart contract on SOLANA+ reveal. Thanks

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    Hi freelancers, I am seeking a developer who can build crypto-casino gaming platform. Am going to provide further details via chat. Long term job. Minimum 6 months contract. Looking forward to talk with talented developers.

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    I have a pancake swap bot that does not work properly. I need a bot that takes credits from people after it profits on the transaction. If you know how to do this please reach out to me and Ill show you the files I have and it should be an easy fix or maybe you need to build it from scratch. I dont know.

    $351 - $1053
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    29 bids
    Solidity Smart Contract 5 days left
    VERIFIED

    We are building a small solidity based project and we need experts who can help us achieve our milestones this would be an unreal+solidity project on the ETH network we want to prototype some concepts and get to an MVP We would need atleast 2 months of commitment

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    Component Adjustment 5 days left
    VERIFIED

    I have a web3 application I've built in react and I'd like help adding 2 minor components to this app that'll require pulling external data. I have it all figured out so I can give a walk-through if needed. I need urgent and experienced manpower to work on the project with me. Add tradeview candlestick chart add external redirection link function

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    We need blacklisting and whitelisting features on a solana token. There will be 6% fee on the token (4% liquidity 2% goes to holders allocations) - Blacklist feature will ban users to interact with the token - Whitelist feature will wave off the (6% fee) to the users I need some one who can develop and test the contract perfectly. If you finish this task in 3 days, the bonus will be considered.

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    Move to earn dApp 5 days left
    VERIFIED

    I am looking for Move to Earn dApp M2E like with Full features And functionality

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    Scope of work: 1. Integrate crypto wallets into a completed ICO landing page so users can buy tokens during the ICO. 2. Create Solana tokens and smart contract with vesting schedule

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    NFT Project. 4 days left
    VERIFIED

    Hello, We're looking for a dev that has experience in the web3 space. We need to create a website, P2E game, staking for our nft/token creation and an nft marketplace. This project will take place on the SOLANA network. Please let me know if you have experience in this domain and will give out more details. Thank you

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    Secure IoT blockchain base Application Implement and test security architecture For IoT blockchain base using Edge& fog computing and defined software networks ( SDN ) These architectures are divided into the following: • Blockchain Cloud contains a holistic view of all managed IoT that have occurred to the cloud layer.. Blockchain technology enables to provide cryptographically validated transactions and data. and context-aware attributes-based CP-ABE encryption. It receives the user’s authentication & encrypt the data * IoT devices & IoT gateway * Application Analytics •Edge: composed of devices responsible for ensuring access control, secure data communication, and the application with security rules for managing local area networks. •Fog: compos...

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    NFT and crypto art 4 days left
    VERIFIED

    I have a collection of digital images and I need information and advice on the whole procedure on how to create an NFT of each image and publish them on OpenSea using the ERC721 protocol. And how can I get profitability from these images.

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    This is long term projects I am CEO for small company I am looking for only expert! I will ask you some question to u Then I will share my requirement!

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    i need someone that can build a solana web application and solana smart contract

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    I'm looking for a blockchain developer that knows react to build an analytics platform that scans the blockchain where we could figure out how many wallets are long term holders vs short term holders of a token. This would first be done to build an analytics platform on top of BNB chain. I am in the process of building out a team of really talented people to build out a new crypto currency called Oaysus. One of the spots I am looking to fill is for an Blockchain Developer. I'm from the United States working with a mathematician from the UK and a designer from Ukraine. Users in our analytics platform will be able to connect their wallets, share their analytics insights / knowledge, sync their youtube channels and twitter feeds and earn subs paid for in our token. The twitch of cr...

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    Hi Everyone, I am looking for a community manager who can handle my Telegram channel and discord server. You will be responsible for growing the channels and attracting crypto and blockchain lovers.

    $42 - $351
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    20 bids

    I'm looking for a blockchain developer that knows react to build an analytics platform that scans the blockchain where we could figure out how many wallets are long term holders vs short term holders of a token. This would first be done to build an analytics platform on top of BNB chain. I am in the process of building out a team of really talented people to build out a new crypto currency called Oaysus. One of the spots I am looking to fill is for an Blockchain Developer. I'm from the United States working with a mathematician from the UK and a designer from Ukraine. Users in our analytics platform will be able to connect their wallets, share their analytics insights / knowledge, sync their youtube channels and twitter feeds and earn subs paid for in our token. The twitch of cr...

    $35 / hr (Avg Bid)
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    31 bids

    Hi how are You? here will be short and all explained exacly in bottom. Project is to: 1. copy smart cotract of Avarice (he is on MIT licence mean can be copied all or part/public). 2. copy also their website one to one (or looks similar mean butons,place etc) 3. installing this on testnet and server from virmach.com. (we will test how its work) 4. making instruction for customer to make him start project on server virmach and smartcontract in real net with his diferent token, giving all codes and istruction to start only by him, and help if any isue. 5. small changes in website really small (adding twitter button, discord, etc) and really small changes in smart contract like (diferent % of lobby tokens next day, and posibility tu upgrade % for referal on some customers from 5 to 10%, sh...

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    Design me a metaverse 3 days left
    VERIFIED

    We need a metaverse designer for project, someone who can design the with copy paste proposals will not be entertained.

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    Looking for a developer or team to build a metaverse on the cronos blockchain

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    I need a very simple Android and iOS apps to send/receive/swap crypto on Binance Smart Chain. The app can be made using ionic or something that makes it easy to make both Android and iOS apps, but can be made in any technology. The app should be very simple. Just showing the balances in 5 currencies: - BNB - USDT - ETH - WBTC - ILEV (this is our own BEP20 token that will be provided) All of those tokens are just on Binance Smart Chain. The private key is stored in the phone. First time when the app is installed a user should be shown a mnemonic phrase and asked to write down this phrase. All balances should be shown in given currency and the estimation value in USD There are 3 options in the app: - Send crypto: There is an option to input address or scan QR code, enter amount (user...

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    Marketing for NFT Project 3 days left
    VERIFIED

    New NFT project that requires long term marketing. Will be paid monthly. Experience required in NFT projects. No experience, no project...

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    we need a metaverse platform where players and teams can play esports tournaments. Each team can have their own arena,each team should have their own token and new user can stroll in the metaverse.

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    I need a 7777 NFT collection (pixel art) 100-120 traits. Plus the full minting site (only one page) and contract on ethereum. I already have the domain and hosting. Message me for full details and discussion

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    Looking for blockchain based developers. Unmarshal API's are perfect solutions to the blockchain related data issues

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    Please use node.js to write a simple script to: 1. Generate infinite numbers of BTC address which is belong to one parent address by using Hierarchical Deterministic wallet Please conduct a transfer test in testnet of Bitcoin. Please also let me know that whether the transfer of bitcoin to any one of the BTC addresses will be consolidated to one BTC parent address.

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    Secure IoT blockchain base Application Implement and test security architecture For IoT blockchain base using Edge& fog computing and defined software networks ( SDN ) These architectures are divided into the following: • Blockchain Cloud contains a holistic view of all managed IoT that have occurred to the cloud layer.. Blockchain technology enables to provide cryptographically validated transactions and data. and context-aware attributes-based CP-ABE encryption. It receives the user’s authentication & encrypt the data * IoT devices & IoT gateway * Application Analytics •Edge: composed of devices responsible for ensuring access control, secure data communication, and the application with security rules for managing local area networks. •Fog: compos...

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    Trading expert 2 days left
    VERIFIED

    I am looking for an experienced blockchain and trading expert

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    The pool already running and config as PROP Auto generator for all coins: Need to BTC Bitcoin Only Config and Set PPS+ or FPPS to at YIIMP POOL . Its not VPS Server. Team viewer remote for doing project require. 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 : 30$**** Higher BID & Auto bot BID will be removed. If you BID Don't ask for Higher BID in private, your Bid will be removed & and You will get Block by our company. ***

    $63 / hr (Avg Bid)
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    2 bids

    The pool already running and config as PROP Auto generator for all coins: Need to BTC Bitcoin Only Config and Set PPS+ or FPPS to at YIIMP POOL . Its not VPS Server. Team viewer remote for doing project require. 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 : 30$**** Higher BID & Auto bot BID will be removed. If you BID Don't ask for Higher BID in private, your Bid will be removed & and You will get Block by our company. ***

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    5 bids

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