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Programming & Development information security

Block Chain & Security

$35/hr Starting at $150

🔐 Blockchain Development & Security – Secure, Scalable, and Decentralized Solutions

Looking to build a secure, decentralized, and future-ready blockchain application or smart contract platform?

With over 11+ years of software development experience and deep expertise in blockchain ecosystems, I offer end-to-end blockchain development and security-first architecture using cutting-edge technologies such as Ethereum, Solidity, Rust, Hyperledger, and secure identity protocols like Auth0, Okta, Azure AD, and AWS Cognito.

From crypto apps to smart contracts and enterprise blockchain platforms, I help businesses create trustworthy and scalable solutions with security at their core.

💼 What I Can Build for You:

  • Custom blockchain applications (DeFi, NFT, DAOs, wallets, supply chain)

  • Smart contract development & auditing (Solidity, Rust)

  • Token creation (ERC20, ERC721, ERC1155)

  • Private blockchain networks (Hyperledger Fabric, Sawtooth, Iroha)

  • Decentralized apps (DApps) with Web3.js / Ethers.js integration

  • Secure identity & access systems (OAuth2, RBAC, SSO)

  • Blockchain and Web3 API integration

  • Secure backend infrastructure and wallet management

🔧 Technologies & Tools:

  • Blockchain Platforms: Ethereum, Polygon, Solana, Binance Smart Chain

  • Smart Contract Languages: Solidity, Rust

  • Frameworks & Tools: Truffle, Hardhat, Web3.js, Ethers.js, Ganache

  • Private Blockchain: Hyperledger Fabric, Sawtooth, Iroha, Cello

  • Security & Identity: Auth0, Okta, Azure AD, AWS Cognito, JWT, OAuth2

  • Storage & Infrastructure: IPFS, AWS, GCP, Docker, Kubernetes

  • Frontend/DApp Integration: React, Next.js, MetaMask, WalletConnect

🚀 Why Choose Me?

  • Strong background in both blockchain protocols and application security

  • Experience building secure, scalable decentralized platforms

  • Clean, optimized smart contract code with audit-ready standards

  • Secure authentication & wallet integration

  • Transparent development process and on-time delivery

Whether you’re launching a new blockchain project, need help auditing smart contracts, or want to enhance your platform’s security and decentralization, I can deliver enterprise-grade solutions tailored to your needs.

Let’s connect to build something secure, scalable, and future-proof.

About

$35/hr Ongoing

Download Resume

🔐 Blockchain Development & Security – Secure, Scalable, and Decentralized Solutions

Looking to build a secure, decentralized, and future-ready blockchain application or smart contract platform?

With over 11+ years of software development experience and deep expertise in blockchain ecosystems, I offer end-to-end blockchain development and security-first architecture using cutting-edge technologies such as Ethereum, Solidity, Rust, Hyperledger, and secure identity protocols like Auth0, Okta, Azure AD, and AWS Cognito.

From crypto apps to smart contracts and enterprise blockchain platforms, I help businesses create trustworthy and scalable solutions with security at their core.

💼 What I Can Build for You:

  • Custom blockchain applications (DeFi, NFT, DAOs, wallets, supply chain)

  • Smart contract development & auditing (Solidity, Rust)

  • Token creation (ERC20, ERC721, ERC1155)

  • Private blockchain networks (Hyperledger Fabric, Sawtooth, Iroha)

  • Decentralized apps (DApps) with Web3.js / Ethers.js integration

  • Secure identity & access systems (OAuth2, RBAC, SSO)

  • Blockchain and Web3 API integration

  • Secure backend infrastructure and wallet management

🔧 Technologies & Tools:

  • Blockchain Platforms: Ethereum, Polygon, Solana, Binance Smart Chain

  • Smart Contract Languages: Solidity, Rust

  • Frameworks & Tools: Truffle, Hardhat, Web3.js, Ethers.js, Ganache

  • Private Blockchain: Hyperledger Fabric, Sawtooth, Iroha, Cello

  • Security & Identity: Auth0, Okta, Azure AD, AWS Cognito, JWT, OAuth2

  • Storage & Infrastructure: IPFS, AWS, GCP, Docker, Kubernetes

  • Frontend/DApp Integration: React, Next.js, MetaMask, WalletConnect

🚀 Why Choose Me?

  • Strong background in both blockchain protocols and application security

  • Experience building secure, scalable decentralized platforms

  • Clean, optimized smart contract code with audit-ready standards

  • Secure authentication & wallet integration

  • Transparent development process and on-time delivery

Whether you’re launching a new blockchain project, need help auditing smart contracts, or want to enhance your platform’s security and decentralization, I can deliver enterprise-grade solutions tailored to your needs.

Let’s connect to build something secure, scalable, and future-proof.

Skills & Expertise

AWS CognitoAzure ADBlockchainEthereumRust ProgrammingSolidity

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