Hard Skills

- Blockchain Protocols & Platforms: Ethereum, Hyperledger Fabric, Solana, Polygon

- Smart Contract Development: Solidity, Rust, Vyper

- Cryptography & Zero-Knowledge Proofs (ZKPs)

- Security Audits & Penetration Testing on Blockchain Networks

- DLT Architecture & Consensus Algorithms (PoS, DPoS, BFT)

- DeFi & NFT Security Mechanics

- DevOps & CI/CD for Blockchain (Docker, Kubernetes, Jenkins)

- API Development & Integration (REST, GraphQL)

Soft Skills

- Analytical Problem Solving

- Cybersecurity Best Practices

- Technical Leadership & Mentoring

- Agile Methodologies

- Excellent Communication & Technical Documentation

- Continuous Learning & Tech Trend Adaptability

*Senior Blockchain Security Engineer*

*SecureChain Technologies, San Francisco, CA*

June 2022 – Present

- Led the security evaluation of enterprise blockchain solutions, reducing vulnerabilities by 40% through rigorous code audits.

- Developed zero-knowledge proof integrations to enable privacy-preserving identity verification systems, enhancing user confidentiality.

- Architected a decentralized threat detection system leveraging real-time smart contract analytics to flag suspicious activities.

- Collaborated with compliance teams to embed GDPR and CCPA standards into blockchain data protocols.

*Blockchain Developer – Cybersecurity Applications*

*CryptoSecure Inc., Remote*

January 2020 – May 2022

- Designed and deployed secure smart contracts for authentication and access control on a Hyperledger Fabric-based enterprise network.

- Implemented cryptography modules to facilitate end-to-end encrypted data sharing between distributed nodes.

- Developed decentralized audit trail systems, improving transparency and tamper-evidence for financial institutions.

- Worked with penetration testers to simulate attack scenarios, fortifying the network against emerging threats.

*Junior Blockchain Engineer*

*InnovateCrypto, San Francisco, CA*

August 2018 – December 2019

- Contributed to the development of a security-focused DeFi platform, emphasizing smart contract safety and user fund protection.

- Automated security testing procedures, reducing deployment errors and post-launch bugs.

- Conducted research on blockchain anomaly detection techniques and presented findings in team workshops.

**Bachelor of Science in Computer Science**

University of California, Berkeley — 2014–2018

- Certified Blockchain Security Expert (CBSE) — 2023

- Certified Information Systems Security Professional (CISSP) — 2021

- Ethereum Developer Certification — 2020

- **Decentralized Identity Vault:** Developed a privacy-preserving identity management system using zk-SNARKs, enabling users to authenticate without revealing personal data.

- **Blockchain-based Cyber Threat Intelligence Sharing Platform:** Led the backend development of a secure platform where organizations anonymously share threat data, improving proactive attack mitigation.

- **Smart Contract Auditing Tool:** Created an automated tool utilizing static analysis to detect common security vulnerabilities, adopted enterprise-wide for contract review workflows.

- Solidity, Rust, Vyper

- Hyperledger Fabric, Ethereum, Solana, Polygon

- Zero-Knowledge Proofs, ECDSA, RSA

- Truffle, Hardhat, Remix IDE

- Docker, Kubernetes, Jenkins

- Metamask, Ledger, Trezor hardware wallets

- English (Native)

- Spanish (Professional Working Proficiency)