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Blockchain Smart Contract

€30-250 EUR

Closed
Posted about 1 year ago

€30-250 EUR

Paid on delivery
I'm looking for a talented developer to write a blockchain smart contract that meets my requirements. I have selected the Solidity programming language for the task, as I think it is best suited for this purpose. The smart contract may potentially need to interact with other smart contracts in the future, though we're not sure yet. The developer will also be responsible for auditing the code to ensure everything is running correctly. If you have experience in this area and think you can help, I'd love to hear from you! Scenario: We are going to present a classified project to a potential investor or partner. To make sure the presentation will be confidential between the involved participants, I want the attendee to sign an NDA, prior to the meeting or presentation. To make this happen, I want to make this into a smart-contract, so that when they get sent our unique QR code, they will be presented with a PDF (the NDA contract), that they will sign by scanning the QR code, to accept the NDA, through their wallet. Preferably Cardano blockchain. The actual content of the PDF needs to be "off-chain" and kept hidden / not visible for the public eye. The PDF document will change for each presentation /each meeting, so we will have this stored on our server or sent out via email (or perhaps some kind of automatic system through the smart contract?) We are not sure how to best do this, and open to suggestions. After the NDA contract has been reviewed and signed, it would be ideal to have a copy sent to an email address to the involved parties. (optional). I can provide hosting space if needed.
Project ID: 36283885

About the project

21 proposals
Remote project
Active 11 mos ago

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21 freelancers are bidding on average €653 EUR for this job
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Hello there As you can see our multiple highly rated profile reviews our performance on Blockchain and NFT projects is exemplary. Our team dedicates work on Blockchain development and have already delivered successful Blockchain based platforms with following segments: ERC721, ERC1155 Token with smart contract creation. Cryptocurrency NFT marketplace Platform ICO service with created token(coin) Dapps Decentralized Exchange I am here to communicate with you any time and I assure you that you will get your work in a very professional and timely manner to project requirements. Kindly message me so we can discuss more about your project needs. Thank you for your time.
€1,500 EUR in 10 days
4.8 (100 reviews)
8.4
8.4
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Dear Client. Thank you for posting this project, and I'm very happy to bid on your project. I've read carefully your project details. I have rich experiences related to this project. Your satisfaction with the project is my top priority! If you give me a chance to work with you, then I will do my best to reach your requirements. I'm waiting for your kind response. Please send msg over chat. Let's go. I will do my best for you. Best Regards.
€500 EUR in 7 days
5.0 (3 reviews)
3.9
3.9
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Hello, I've read your requirements carefully and I feel that I am a good fit for it. I am interested in your scenario. As an experienced senior Blockchain developer, my sole purpose is to deliver successful projects to clients. I have rich experience in Blockchain, Smart Contract, Ethereum development. Hope to discuss the details with you. Thank you for your job posting. Best regards.
€140 EUR in 7 days
5.0 (2 reviews)
3.8
3.8
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Looking forward to hearing form you to collaborate on this project as this falls in the domain of my expertise. I have more than 7 years of experience in Web Development, Blockchain Development and Databases and that is exactly what is required in this project!! You can expect quality and timely delivery. What you can expect: - -> Top rated plus. -> 5 star reviews. -> 7+ years experience in Web Development and Blockchain. -> Very dedicated to my work. -> Delivering work on given timeline. Languages and environments I am an expert in : <> Full stack Developer - Node.js - React JS - JavaScript - JQuery - MySQL - MongoDB - HTML5 - CSS3 - PHP (any framework and CMS) <> Blockchain Developer - Solidity - Web3 - Hardhat - Truffle - Ganache CLI - Remix IDE - IBM Hyperledger - IPFS - Rust - Go <>Graphic and Web Designing - WordPress - Shopify - HTML/ CSS/ Bootstrap - UI/ UX/ - Adobe Photoshop/ Adobe Illustrator/ AdobeXD - Figma/ PicsArt - ReactJS/ JavaScript/ JQuery/ Ajax Work Flowchart: 1. Project kickoff meeting. 2. Images (if any) and content transfer. 3. Functional Prototyping. 4. Testing 5. Submission. Price -> The quoted price is as per the requirement quoted. This is subject to change if there is any additional requirement and can be negotiated.
€199 EUR in 7 days
4.5 (4 reviews)
3.9
3.9
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⭐Blockchain Expert⭐ Hello dear! As a senior Web developer, I have rich experience with Smart Contract and Cardano blockchain network. I have many developed DeFi project and DApp with Solidity and React.js and Typescript. To implement your idea, all NDA will be uploaded on ipfs(since it has large data length.) Your idea is excellent and I'd like to work on this project. Hope to discuss in detail via chat. Thanks and Regards.
€140 EUR in 7 days
5.0 (1 review)
3.3
3.3
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Hi, I'm a profesional ethereum blockchain developer with expertise in building smart contracts. I'm intrested in your project. Text me.
€250 EUR in 7 days
4.8 (4 reviews)
3.4
3.4
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Hello, Are you looking for senior developer? As a highly skilled developer, I am sure I can complete your project. I am very confident with my skills and I'd like to help your business by doing my best. I'm not going to explain that I'm good at this and that, like other developers. Hit that reply button over there to continue our conversation. Thank you.
€150 EUR in 5 days
0.0 (0 reviews)
0.0
0.0
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hello Thank for your job posting I just read your job description and I think it's a great fit for your project. Please look forward to the best beautiful results. I've done similar things in the past With my rich experience, your project can be completed perfectly and beautifully. Also i can work in your timezone Thanks for your time.
€140 EUR in 7 days
0.0 (0 reviews)
0.0
0.0
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Hi there, I am a full stack developer with 4+ years of experience in both front-end and back-end development. I have read your Blockchain Smart Contract description very carefully and would like to have a detailed chat about this project as to resolve some queries I have regarding this project that needs to be cleared to get things started. We always look for a long term relationship. It would be my pleasure to build long term relationship with you. All my skills are related to this particular project. Looking forward from your response, Thanks Rashid Amjad.
€250 EUR in 8 days
0.0 (0 reviews)
2.5
2.5
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Hello Dear, Hi, there. Thanks for the chance that I can apply here. I read your post carefully and as a senior blockchain expert, I can finish your project in a short period of time. I have 6+ years of solid knowledge and rich experiences in Blockchain based on Ethereum, BSC, Solana, Fantom etc with modern, trend technology such as React, Vue, and Node.js. And also I have 5+ years of solidity experience in building smart contracts. I would like to tell you that i make your solution according to your requirements. Please contact me for more details. I can start work right away. I will be waiting for your reply. Thank you.
€140 EUR in 7 days
0.0 (0 reviews)
0.0
0.0
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Hello. Thank you for posting job I have checked your job description and understood what you want. As a Full Stack developer, I have strong knowledge of Smart Contract with Solidity and rich experience of +3 years with those. I think this project is a very good fit for me. I am very hard working and always deliver result on time. My work never ends until you are 100% satisfied with each & everything. You can also expect great communication from me. Low budget and very good result as much as you want. Look forward to hearing from you soon! Thank you.
€140 EUR in 7 days
0.0 (0 reviews)
0.0
0.0
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I agree to join and work with you sir, I hope to be wonderful and excellent in my work and I will give everything I have to make you proud of me and I will wait for a message from you and you can also send messages via WhatsApp +201013634119
€140 EUR in 7 days
0.0 (0 reviews)
0.0
0.0
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Dear Client, I have checked your project details and I am sure I can help you with that. Let me introduce myself. My name is Sarah and I have been working in the block chain domain since 2014. I have over 8+ years of experience in block chain development, coin development, smart contract development, development of NFT marketing places and trading bots... My core specializations are in proving PDF Blockchain Solidity Smart Contracts Cardano based solutions to my clients. Let's discuss more about your project. Looking forward to our meeting. Thanks & Regards Sarah Neilson
€200 EUR in 7 days
0.0 (0 reviews)
0.0
0.0
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I'm writing to convey my interest in working for your organisation as a blockchain engineer. I am certain that I can add significant value to your team given my education in computer science and my substantial experience in blockchain development. I have experience with a range of platforms, including Ethereum and Binance, and have worked with blockchain technology for a number of years. I am well-versed in the creation of smart contracts and have worked with distributed systems and consensus techniques. I am proficient in a number of programming languages, including JavaScript and Solidity, and I have experience using a variety of frameworks and development tools. The chance to work with your organisation and use my abilities to support the creation and upkeep of the decentralised systems that are advancing the blockchain industry excites me. I'm a strong candidate for this position due to my enthusiasm for this technology and my technical expertise. I appreciate your taking a look at my application. I'm eager for the chance to go into further detail about my qualifications.
€200 EUR in 7 days
0.0 (0 reviews)
0.0
0.0
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Dear Sir/Madam, We have a strong blockchain smart contract Developers available who have 8 plus years of experience, we can integrate and deploy contract in your site and we can support you for your all requirements. How would you rate your Blockchain smart contract knowledge? Expert We can do it
€140 EUR in 7 days
0.0 (0 reviews)
0.0
0.0

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Flag of NORWAY
Oslo, Norway
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Member since Mar 28, 2023

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