Blockchain-Based Resume Verification App

 ✅ What is a Blockchain-Based Resume Verification App?


A decentralized application (DApp) that allows:


Job seekers to upload and verify credentials


Universities/employers to issue and sign those credentials


Recruiters to instantly verify resumes without third-party validation


This builds trust, prevents resume fraud, and leverages immutability of blockchain.


🧱 Tech Stack


Smart Contracts: Solidity


Blockchain Platform: Ethereum (or Polygon for low gas)


Framework: Hardhat or Truffle


Frontend: React.js


Web3 Interaction: Ethers.js or Web3.js


Optional: IPFS for document storage


🔐 Core Features

Role Action

Candidate Upload resume, request verification

Institution/Employer Approve and sign verification

Recruiter View and verify authenticity

🧠 Smart Contract Structure (Simplified)

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.20;


contract ResumeVerification {


    struct Resume {

        address candidate;

        string ipfsHash;

        bool verified;

        address verifier;

    }


    mapping(address => Resume) public resumes;


    event ResumeUploaded(address indexed candidate, string ipfsHash);

    event ResumeVerified(address indexed verifier, address indexed candidate);


    function uploadResume(string calldata _ipfsHash) external {

        resumes[msg.sender] = Resume(msg.sender, _ipfsHash, false, address(0));

        emit ResumeUploaded(msg.sender, _ipfsHash);

    }


    function verifyResume(address _candidate) external {

        require(bytes(resumes[_candidate].ipfsHash).length > 0, "No resume found");

        resumes[_candidate].verified = true;

        resumes[_candidate].verifier = msg.sender;


        emit ResumeVerified(msg.sender, _candidate);

    }


    function getResume(address _candidate) public view returns (string memory, bool, address) {

        Resume memory r = resumes[_candidate];

        return (r.ipfsHash, r.verified, r.verifier);

    }

}


🖥️ Frontend Functionality (React + Ethers.js)

✅ Upload Resume to IPFS

const ipfs = await ipfsClient.add(resumeFile);

await contract.uploadResume(ipfs.path);


✅ Verify Resume (by university or employer)

await contract.verifyResume(candidateAddress);


✅ Display Verified Badge

const [hash, verified, verifier] = await contract.getResume(candidateAddress);


🧩 Optional Enhancements


Role-based access control (Only trusted addresses can verify resumes)


NFT-based resume tokens


Timestamping credentials


Integration with LinkedIn or GitHub


Multiple resume versions or history tracking


📁 Project Folder Structure

resume-verification-dapp/

│

├── contracts/

│   └── ResumeVerification.sol

│

├── frontend/

│   ├── src/

│   │   ├── App.js

│   │   └── components/

│   │       └── ResumeUpload.js

│

├── scripts/

│   └── deploy.js

│

├── test/

│   └── resume-test.js

│

├── hardhat.config.js

└── README.md


🔐 Example Flow


Candidate uploads resume → File is stored on IPFS and hash saved to blockchain


University/employer logs in → Calls verifyResume() on contract


Recruiter views resume → Contract returns hash, verified status, and verifier address


🧪 Test Case Example (Hardhat)

it("should allow uploading and verifying a resume", async () => {

  const [candidate, employer] = await ethers.getSigners();

  const Resume = await ethers.getContractFactory("ResumeVerification");

  const resumeContract = await Resume.deploy();


  await resumeContract.connect(candidate).uploadResume("QmHash");

  await resumeContract.connect(employer).verifyResume(candidate.address);


  const result = await resumeContract.getResume(candidate.address);

  expect(result[1]).to.equal(true); // verified = true

});


🌐 Deployment Ideas


Deploy on Polygon Mumbai testnet or Sepolia


Host frontend on Vercel, Netlify, or IPFS


Use Pinata or Web3.Storage for IPFS integration


📌 Final Tips


Keep UI simple: Upload, Verify, View


Include a verifier list to show trusted institutions


Document the project clearly in your GitHub README


Include a demo video or deploy a live version

Learn Blockchain Course in Hyderabad

Read More

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Crypto Portfolio Tracker Using Web3

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Launching Your Own Token with ERC-20

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