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Build blockchain to verify/certify documents

$250-750 USD

Closed
Posted about 5 years ago

$250-750 USD

Paid on delivery
Need to build a network with application layer for - DAPP (FE) - API Layer (NodeJS) - Blockchain (Ethereum) > Credentials (ERC721) - Certificate Owner; store data HASH > Hierarchical (ERC721) to include historical certificate link > Payment (ERC20) > Users - MongoDB > Store the actual info and version of resume (full versioning)
Project ID: 18696551

About the project

20 proposals
Remote project
Active 5 yrs ago

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20 freelancers are bidding on average $1,224 USD for this job
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How are you? I read your description I am blockchain expert, especially I am very familiar with Ethereum. I will finish perfectly your project. I wanna discuss more via chat. Thanks
$500 USD in 10 days
5.0 (30 reviews)
6.8
6.8
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Hello, We are an IT company based in India and we work extensively on Blockchain development. We have outstanding capabilities and understanding in Ethereum based DAPP. Hyperledgers Smart contracts ICO's We have worked on numerous blockchain products and projects and have outstanding track record of delivering quality work. Lets get connected. Thank you
$5,000 USD in 30 days
5.0 (15 reviews)
5.1
5.1
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Hi , I am going to be pretty straight forward here. I have extensive experience in blockchain development. More specifically in ethereum and hyperledger. I have actually worked on a project pretty similar to like what you have described. The project was to issue educational certificates on ethereum blockchain. But before anything i would like to know more about your project. Regards, Taha haq
$700 USD in 10 days
5.0 (4 reviews)
3.3
3.3
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Hello, If you can give me a Ubuntu 16.04 LTS 64 bit Linux I will do install blockchain to verify documents online in Digital way. I'm interested in your project. Please send me a message so that we can discuss more. Thanks & Regards, Mohammad https://www.freelancer.com/u/LinuxGun
$250 USD in 0 day
5.0 (2 reviews)
3.0
3.0
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Hello. How are you? I have read the project description of 'Build blockchain to verify/certify documents' and I have confidence that I can carry the job to success. Cuz I am a professional full stack developer with over 10 years of experience and have been doing the kind of job for that period. Please initiate the private chat so that we can have full discussion on each other's offer and then we can start it immediately. Thanks and I am waiting for your contact
$555 USD in 3 days
0.0 (0 reviews)
4.1
4.1
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check my profile i'm expert BC and BTC/ETH network also i developed p2p exchnage and coin . I would like to inform you also that I am highly skilled with : • 10+ years of professional experience in C#/.NET software development; • 5+ years Experience with ASP.NET MVC , LINQ , EF , SQL; • 10+ years Experience with PHP/MySQL; • 7+ years Experience with App development Android, iOS Xamarin and Java Platform ; • 1+ years Experience with Cryptocurrency and Ethereum smart contract development solidity; • 10+ years Experience with UI/UX Design and graphic Design photoshop; • 18+ years Experience with c, C++, pascal, QBasic , FoxPro, dos programming; • 15+ years Experience with PHP/MySQL; • 2+ years Experience with WebScrap and undefined data parsing; • Experience with web technologies like HTML5, CSS3, Bootstrap, JavaScript, Angular 1-7; • CMS Development Wordpress , Joomla , drupal • 10+ years Graphic Design Logo , Printing , Branding , banner , …. • 10+ years’ Experience Animation design Flash + Actionscript 2/3 • Fluency in English;
$3,000 USD in 30 days
0.0 (0 reviews)
0.0
0.0
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Hi,dear. I've just checked all requirements of your project 'Build blockchain to verify/certify documents'. I'm a senior software developer and I'm able to fulfill your project requirements ,you may be interested in me. Please come in contact so that we can discuss more for further details... Skills: Angular.js, Blockchain, Ethereum, node.js, NoSQL Couch & Mongo
$555 USD in 3 days
0.0 (0 reviews)
0.0
0.0
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I am doing research in authentication where I have designed a scheme which is comparable better from the existing schemes. I also worked in Blockchain application(Intermediate stage)
$555 USD in 10 days
0.0 (0 reviews)
0.0
0.0
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Hello, I’ve carefully gone through your job posting.I did a project very mush like this before. I am an expert Ethereum Blockchain developer with more than 1 years experience. so, I am very much interested in taking your project with all of your requirements. Looking forward to hearing from you. Thank you for your consideration. Best Regards, Syed Fahad Hussain
$320 USD in 12 days
0.0 (0 reviews)
0.0
0.0
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Hii, we have employees with 5 years of experience in blockchain development and we can do this project for you effectively, however, we want to ask you that you particularly need it on Ethereum or is it ok with you if we build it on some other platform. Please confirm.
$555 USD in 15 days
0.0 (0 reviews)
0.0
0.0
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Hello, I understand your requirement for developing a decentralized application to verify/certify documents and save them with actual info and version of the resume. It would compromise of: A DApp An API synching data A transaction on the blockchain Certification Owner with storing data to HASH Saving hierarchical certfication link We specialize in developing customized blockchain software solutions. Our blockchain services and products cover Smart Contract Development, Digital Tokens, Private Blockchain Development, White-label Cryptocurrency Exchange Software and more. We are actively participating in the development of Blockchain based solutions for Different industry and following are few of the project currently in development. 1.) Developing a DApp to democratize the global medical device industry. The platform will disintermediate the medical device and supplies ecosystem and make it more efficient. 2.) Pharma Supply Chain Blockchain Ecosystem 3.) Development of Smart Contracts etc. 4.) Real Estate Investments on Blockchain 5.) Poker/Lottery Game on Blockchain 6.) Donation on Blockchain Please let me know if I can initiate a call with our expert who can give you a walkthrough. Best Regards, Manjusha
$555 USD in 10 days
0.0 (1 review)
0.0
0.0
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Hi, I'm a die-heart blockchain developer. I'm enthusiastic to be part of your application development. Im not great but I understand the concepts of blockchain and have done 1 project on the same for project management. We could work with specificatikns and reqjirements of the application
$800 USD in 10 days
0.0 (0 reviews)
0.0
0.0
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Hello. My name is Dmytro Nasyrov. I'm a Founder and CTO at Pharos Production Inc. Our rate is $20/hr, we can provide you with any amount of the required resource - from 1 month of a single developer, 40 hrs/week. We're a Vegas-based software development company with development branches in Eastern Europe (Ukraine, Lithuania). We specialize in high-load systems, including custom distributed and decentralized technologies like blockchain, with all required infra - web front end, mobile apps, DevOps etc. We use cutting-edge tools in our technology stack - Elixir, Scala, ReactJS, Kotlin for Android, Swift for iOS, Flutter for cross-platform development and Fuchsia, Kubernetes, Docker and Ansible for deployment into AWS, Azure or private servers. Also, we provide the development of distributed/decentralized projects on Quorum (J.P. Morgan blockchain technology for financial organizations) and Hyperledger stack for Supply Chain projects. Let me know if you have any questions and you're welcome to look through our website, meet our team at LinkedIn or visit our development offices. Looking forward to knowing more about your project.
$4,444 USD in 30 days
0.0 (0 reviews)
0.0
0.0

About the client

Flag of MALAYSIA
Kuala Lumpur, Malaysia
5.0
62
Payment method verified
Member since Sep 2, 2012

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