- Blockchain & Crypto Testing (Smart Contracts, DApps, DeFi protocols)

- Automation Frameworks (Selenium, Playwright, Cypress)

- Blockchain-specific Testing (EVM, Solidity, Web3.js, Truffle, Hardhat)

- API Testing (Postman, REST Assured, GraphQL)

- Continuous Integration/Continuous Deployment (Jenkins, GitLab CI)

- Smart Contract Security & Audits

- Version Control (Git, GitHub, GitLab)

- Test Data Management & Mocking for Blockchain networks

**Soft Skills:**

- Analytical & Critical Thinking

- Problem Solving in High-Pressure Environments

- Cross-Functional Collaboration

- Agile & Scrum Methodologies

- Technical Documentation & Reporting

*Blockchain QA Automation Lead | CryptoSecure Inc. | San Francisco, CA*

June 2022 – Present

- Developed comprehensive automation test suites for multiple DeFi projects using Playwright and Solidity testing frameworks, reducing manual testing effort by 40%.

- Implemented blockchain-specific testing protocols to verify smart contract security, logic correctness, and transaction integrity across EVM-compatible chains.

- Integrated automated tests into CI/CD pipelines, enabling nightly regression testing and faster deployment cycles.

- Collaborated with developers and security auditors to conduct vulnerability assessments for smart contracts, improving overall platform security posture.

*QA Automation Engineer | BlockVeritas | New York, NY*

August 2019 – May 2022

- Designed and maintained automated testing frameworks for multi-chain wallets and crypto exchange platforms utilizing Cypress and Web3.js APIs.

- Led the migration from manual to automated testing, achieving 30% faster test execution and increased defect detection efficacy.

- Conducted blockchain data validation tests to verify transaction consistency and ledger accuracy across decentralized nodes.

- Worked closely with product teams to define testing strategies for new blockchain integrations, including layer-2 solutions and cross-chain bridges.

*Junior QA Engineer | ChainLabs | Austin, TX*

July 2017 – July 2019

- Supported the testing of smart contracts and decentralized voting applications using Truffle and Ganache local blockchain environment.

- Automated regression testing scripts for blockchain API endpoints, significantly reducing test cycle time.

- Participated in security assessments and code audits, focusing on reentrancy and transaction ordering vulnerabilities.

**Bachelor of Science in Computer Engineering**

University of Texas at Austin, TX

Graduated: 2017

- Certified Blockchain Security Professional (CBSP) — (2024)

- Certified ScrumMaster (CSM) — (2023)

- ISTQB Certified Tester, Advanced Level — (2021)

**Decentralized Lending Platform Testing**

Led quality assurance efforts for a multi-chain decentralized lending platform built on Ethereum and Binance Smart Chain, including smart contract testing, load testing, and security vulnerability assessments. Successfully identified critical security flaws before deployment, saving the client from potential exploits.

**Blockchain Explorer API Validation**

Designed and implemented automation scripts to validate blockchain explorer APIs for transaction data integrity and accuracy, enhancing the reliability of user-facing blockchain analytics dashboards.

- **Testing Frameworks:** Playwright, Cypress, Selenium, Postman, REST Assured

- **Blockchain Platforms:** Ethereum, Binance Smart Chain, Polygon, Avalanche

- **Languages:** JavaScript, Solidity, Python, Bash

- **Blockchain Tools:** Truffle, Hardhat, Web3.js, Ethers.js, MythX Security Platform

- **CI/CD:** Jenkins, GitLab CI, Docker, Kubernetes

- **Version Control:** Git, GitHub, GitLab

- English (Fluent)

- Spanish (Professional Working Proficiency)

*References available upon request.*