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    22 jobs found, pricing in USD

    Need to build an API to interact with Hashgraph SDK for an NFT collection Please get familiar with Hashgraph SDK and Hashconnect. It is built on Hedera Hashgraph chain. Steps: Steps: 1. User Click button and it sends a transaction to my account of 10 HBAR using Hashgraph SDK/HTS 2. Backend api detects that it was successful and that it was 10 HBAR 3. My account ints nft[i] with CID[i] using hashgraph sdk then removes that CID[i] from the array 4. My account sends the NFT[i] to the user who sent the transaction through the use of Hashgraph SDK/ HTS

    $166 (Avg Bid)
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    16 bids
    Looking for a web3 expert 6 days left
    VERIFIED

    I am looking for a expert. He also should be familiar with uniswap router v3.

    $494 (Avg Bid)
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    76 bids

    We're in the planning phase of a new Token which will be connected to hardware in the real world. In our project we have people with experience from Finance, Web development, Hardware development and Design. We are now looking for an expert on developing on the blockchain. Your work will consist of everything from designing the product together with the founding team to deploying a final smart contract. We are looking for someone with experience from real world cases, show us previous smart contracts you've developed and deployed. Looking forward to chat!

    $24668 (Avg Bid)
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    Client looking for coin listing website like as client reference - Listing of cryptos - Search engine with filters such as volume, kyc, market cap, percentage change. Access to the platform will be free with limited functionality. You have an example with which gives limited free access. Access to the platform must be possible for investors holding a certain number of tokens if they do not have tokens that have limited features and to use more features they need to buy a subscription. Below you will find the answers to your questions: 1. How many blockchains should you use? For example, see the image below. To start with, it is best to integrate the following blockchains: NBB Smart Chain, Ethereum, Cronos, Solana, Avalanche and Polygon. 2. What type of wallet integration is needed to do ...

    $250 - $750
    Sealed
    $250 - $750
    30 bids

    Project: NFT Lending Site Fork READ FIRST BEFORE BIDDING!!! Please read the entire project description. We will not entertain low bids that are used to kick off conversations and negotiations to increase the price in the project. Please bid on the entire project, and take into consideration your bid price that could focus on profitability for you while staying competitive against other bidders. Also, note that we will be using milestones, and expectations for this project. Bidding: Please bid the total cost of the project, and the timeframe. Also, please take your bid and add 10-15% to the project to allow for a buffer of odds and ends. Project Summary: We are looking to fork a specific crypto project. DM me, and I will share with you the exact project name, website, and smart cont...

    $1703 (Avg Bid)
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    Hi freelancers. I need an experienced Rust developer with strong working knowledge and excellent familiarity with blockchain technologies. I have some bugs in project developed by Rust. Budget TBD. Requirements: - Rust developer, ideally 2 years+ - Crypto experience: creation of smart contracts, wallet interactions, code audits. - Specific experience with Rust development for NEAR protocol.

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    We are looking to hire a Lead Solidity Engineer who is self-motivated, goal-orientated, and a strong team player. The perfect candidate takes pride in their work and knows what it means to deliver high-quality products. This position will oversee both internal and external smart contract developers. Responsibilities: Lead development of all of the company’s smart contracts Manage and grow a team of smart contract developers Develop, test, and deploy new smart contracts using Solidity Work with product and design for continued enhancements Keep smart contracts in-sync with developed protocol(s) Monitor the ongoing health of our smart contracts and ensure their security Build and maintain core smart contract technologies ...

    $45 / hr (Avg Bid)
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    Hi. I am looking for full experienced react developer for fixing my NFT Game UI. If you have full experience in refining UI responsive of existing FE, please apply. This is my game. Thanks.

    $882 (Avg Bid)
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    29 bids

    Hi, I am looking for a Blockchain / solidity developer to Create a Bot to execute Flash loan operations. Looking for a long-term working relationship. Regards

    $722 (Avg Bid)
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    49 bids

    need a solidity based smart contract for minting an NFT collection on Hedera. already have metadata in ifps format.

    $189 (Avg Bid)
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    46 bids

    Need a skilled developer to test and debug Web3 components of a React website. Must be familiar with Etherium and Binance Web3 code. The project is likely straight forward for a skilled coder and can potentially be easy and quick money if candidate is willing to collaborate. Key success is cleaning up and testing existing code as well as providing good documentation on the testing.

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    A Cryptocurrency technical advisor for my BEP20 Token - I need general assistance to learn how to build and implement : - Reflections - How token holders are issued these reward tokens 4% is Redistributed to all existing holders - Liquidity Pool Acquisition 3% is added to liquidity -Token Burn 2% of tokens are burned -Growth Fund 1% is added to the SafeMoon Ecosystem Growth Fund - You need to advise how my new BEP20 token will build and implement these requirements. No coding is required.. Just technical advise.

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    I am looking for a blockchain developer who can work full-time with me.

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    A fully custom token based on Binance Chain, subject to communication content.

    $142 (Avg Bid)
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    I want a blockchain expert who is very good at olympus dao platform. I need some smart contract changes and current frontend integration. Please apply if you are a good fit for this project. Thanks

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    fork donation button web3 3 days left
    VERIFIED

    i want a fork from github, not a copy! For terra blockchain

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    41 bids

    I'm looking for an experience developer for Blockchain projects. To build crypto Wallet, payment gateway, marketplace, and exchange. You have to have great experience in Blockchain technology and have previously developed similar projects. You will require to provide professional input and help with the functionality required.

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    DO NOT BID UNLESS YOU ARE A SOLIDITY DEVELOPER FROM IASI, ROMANIA OTHERWISE I WILL REPORT YOU. Salutare. Caut un developer in Solidity care poate face un token custom si care sa fie dispus sa ne intalnim fata in fata pentru a discuta detalii despre proiect.

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    25 bids
    Website ecommerce web 3.0 3 days left
    VERIFIED

    i need to create a website on web3.0 ecommerce with token integration and crypto method payment integration like SolanaPay etc... react node js json vercel

    $187 (Avg Bid)
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    Hello: We want to create a very simple mobile app and web front end. Basically the requirement is: 1. Build a front end UX / IU map & Flow (mobile and web) for an app that allows people to search and find specific adresses of "Providers" segmented by category. a very simple way to see it is like a marketplace with geolocalization. something like airBNB or any of this apps that the experience is very easy to navegate search and find a provider of specific service. 2. Once the first delivery is aproveed (the experiencie UX/UI) then the seccond delivery must be the aplication (front end) and the integratio with the backend that in this case will be IMPORTANT: Freelancer must be on México or in latin america region.

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    Local
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    Looking for a developer to build a Node JS server that will make calls to specified Solana contracts to mint NFTs. See here for full project details: Successful applicants should be able to complete first implementation until June 30. The budget is $200

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

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