Available to hire
I am a results-driven AI, automation and integration engineer with 17 years of experience in software engineering. I leverage AI-augmented development, large language models, and Python to build scalable automation frameworks, CI/CD pipelines, elevate product quality, boost user satisfaction and support business objectives.
I excel at architecting validation strategies for complex web, mobile (iOS, Android), API and blockchain/Web3 systems within Agile environments. I am bilingual (English-Spanish) and enjoy mentoring technical teams to adopt AI-driven development.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Language
English
Fluent
Spanish; Castilian
Fluent
Work Experience
Senior QA Engineer (Contract, Remote) at BairesDev
April 1, 2021 - May 1, 2025Led a QA team of 4+ engineers by defining a comprehensive QA strategy, encompassing manual and automation testing within an Agile (Scrum, Kanban) framework; managed full defect lifecycle in Jira, Confluence and Zephyr; designed and executed comprehensive test suites (functional, end-to-end, manual, exploratory, usability, database, black-box & security testing); built and maintained automation frameworks in JavaScript, Java & TypeScript (Cypress, Selenium, Appium) integrated with CI/CD pipelines (Git, Bitbucket, CircleCI), BrowserStack and LambdaTest for cross-platform coverage; promoted TDD/BDD through unit, API, integration, regression, smoke & performance testing, reducing critical production defects by 40%.
Senior QA Engineer (Part-time, Remote) at Blubird
January 1, 2024 - PresentArchitect QA strategy for a Web3/crypto platform; validated smart contracts for DeFi apps on Ethereum, Solana, BSC and other blockchains, performing crypto-transaction testing and vulnerability assessments using Python. Developed test suites (E2E, functional, exploratory, UAT, usability, accessibility, database (SQL, NoSQL), security) for React and Node.js apps using Playwright, Pytest, Cucumber, Katalon and Postman to cover UI and RESTful APIs. Managed CI/CD & cloud integration with GitLab CI, Jenkins and AWS ensuring scalability, availability and secure delivery, decreasing build failures by 25% and maintaining 99.9% system uptime. Served Project Manager duties during some periods.
QA Lead (Full-time, Remote) at Freeway
September 1, 2022 - July 1, 2023Led the QA team, defining and executing a comprehensive test strategy for integration with the Bitcoin network and DeFi applications; implemented full-stack automation integrated into Azure and mentored QA engineers, reducing critical bugs in production by 35% and accelerating release cycles by 25%.
Senior QA Engineer (Full-time, On-site) at ThoughtWorks and Independent Consultant
July 1, 2015 - April 1, 2021Senior QA Engineer delivering manual and automated testing across client engagements; designed test strategies, built automation assets, and collaborated with cross-functional teams to ensure high-quality software deliveries; mentored junior QAs and contributed to process improvements.
QA Engineer (Full-time, On-site) at EspacioCuba and University of Computer Sciences
September 1, 2008 - June 1, 2015Early-career QA role focusing on manual and automated testing across web and mobile platforms; contributed to QA processes and defect tracking while collaborating with development and product teams to ensure quality releases.
Senior QA Automation Engineer (Contract, Remote) at Serokell (Client: Midnight Network, Cardano ecosystem)
September 1, 2025 - October 1, 2025Built the QA layer and smart-contract testing (TypeScript/Vitest, Indexer GraphQL, Docker): 50+ E2E/integration tests with ~99% critical-path coverage. Added 30+ Rust integration tests and 10+ reusable helpers; standardized CI pipelines to support scalable, reliable releases.
Senior QA Engineer at BairesDev
April 1, 2021 - May 1, 2025Led a QA team of 4+ engineers by defining a comprehensive QA strategy spanning manual and automation testing within an Agile framework; managed full defect lifecycle in Jira, Confluence and Zephyr; designed and executed comprehensive test suites (functional, end-to-end, manual, exploratory, usability, database, black-box & security testing); built and maintained automation frameworks in JavaScript, Java & TypeScript (Cypress, Selenium, Appium) integrated with CI/CD pipelines, BrowserStack and LambdaTest; advanced TDD/BDD adoption with unit, API, integration, regression, and performance tests (JUnit-like frameworks, JMeter, Gatling, k6) using AI tools; contributed to product quality leading to higher user conversions.
Senior QA Engineer at Blubird
January 1, 2024 - PresentArchitect QA strategy for a Web3 crypto platform; validate smart contracts on Ethereum, Solana, Cardano, Polygon, BSC; perform crypto-transaction testing and vulnerability assessments; develop test suites using Playwright, Pytest and AI coding assistants to accelerate script generation for React UIs and Node.js RESTful APIs; manage CI/CD & cloud integration with GitLab CI, Jenkins and AWS ensuring scalability and secure delivery, decreasing build failures by 25% and maintaining 99.9% system uptime; ensure effective team communication and occasionally fulfill Project Manager duties.
QA Lead at Freeway
September 1, 2022 - July 1, 2023Led the QA team, defining and executing a comprehensive test strategy for integration with the Bitcoin network and DeFi applications; implemented full-stack automation integrated into Azure and mentored QA Engineers, reducing critical bugs in production by 35% and accelerating release cycles by 25%.
Senior QA Engineer at ThoughtWorks and Independent Consultant
July 1, 2015 - April 1, 2021Led QA initiatives across multiple client projects, architected and implemented automation frameworks, and established QA processes within Agile environments; delivered high-quality software releases and mentored junior QA staff to achieve testing excellence.
QA Engineer at EspacioCuba and University of Computer Sciences
September 1, 2008 - June 1, 2015Early-career QA engineer performing test design, execution and defect reporting for web and mobile applications; collaborated with developers to improve software quality and reliability.
Senior QA Automation Engineer at Serokell (Client: Midnight Network, Cardano ecosystem)
September 1, 2025 - October 1, 2025Built a QA layer and smart-contract testing (TypeScript/Vitest), utilizing AI for edge-case generation, achieving ~99% critical-path coverage with 50+ end-to-end/integration tests; added 30+ Rust integration tests and 10+ reusable helpers; standardized CI/CD practices to improve deployment reliability.
Lead Automation & Integration Engineer at BairesDev
April 1, 2021 - May 31, 2025Led a technical team to implement an AI-driven automation strategy within an Agile framework, managed defect lifecycles in Jira/Zephyr, and designed comprehensive validation suites (end-to-end, exploratory, database, black box, and security testing) with Postman, GraphQL, and OWASP-aligned checks. Built and maintained robust automation frameworks in JavaScript/TypeScript (Cypress/Selenium/Appium) and integrated them into CI/CD pipelines across multiple platforms, driving higher product quality and cross-team collaboration. Drove TDD/BDD adoption with unit, API, integration, and performance testing, reducing production defects and improving release quality.
AI Engineer at Blubird
January 1, 2024 - PresentArchitect AI-augmented automation strategies for a Web3 platform, validate smart contracts across EVM and non-EVM chains, and develop automated suites and Agentic Workflows. Build and test RAG pipelines with LLM evaluation to ensure accurate, scalable integrations for React UIs and Node.js/Go APIs. Oversee CI/CD and cloud integration with AWS, improving scalability and uptime.
Automation Lead at Freeway
September 1, 2022 - July 31, 2023Led the team in defining and executing a comprehensive integration strategy for the Bitcoin network and DeFi applications, implementing full-stack automation integrated into Azure pipelines and mentoring engineers. Reduced critical bugs and accelerated release cycles by improving test coverage and automation maturity.
QA Engineer at University of Computer Sciences
September 1, 2008 - June 30, 2015Performed QA activities early in the career, contributing to the establishment of testing practices and quality assurance processes within projects and teams.
Senior AI Automation Engineer at Serokell (Client: Midnight Network)
September 1, 2025 - October 31, 2025Built Automation layer and smart-contract validation framework (TypeScript, Vitest), achieving high critical-path test coverage with 50+ end-to-end and integration tests. Added 30+ Rust integration tests and 10+ reusable helpers; standardized CI processes and pipeline efficiency.
Education
Computer Science Engineering at University of Computer Sciences
January 1, 2003 - December 31, 2008Computer Science Engineering, Summa Cum Laude at University of Computer Sciences
January 1, 2003 - January 1, 2008Bachelor's degree in Computer Science Engineering at University of Computer Sciences
January 1, 2003 - December 31, 2008Qualifications
Scrum Foundation Professional Certificate
March 1, 2022 - December 14, 2025English Certificate (C2), EF SET
August 1, 2020 - December 14, 2025EF SET English Certificate (C2)
January 1, 2026 - March 10, 2026Scrum Foundation Professional Certificate
March 1, 2022 - March 10, 2026Google AI Professional Certificate
March 1, 2026 - March 26, 2026Claude Code in Action
February 1, 2026 - March 26, 2026Software Testing with Generative AI
February 1, 2026 - March 26, 2026Elements of AI for Business
February 1, 2026 - March 26, 2026English Certificate (C2), EF SET
January 1, 2026 - March 26, 2026Industry Experience
Software & Internet, Professional Services, Computers & Electronics, Media & Entertainment, Education
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
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