Open to opportunities

Uzziel Sierra

@uzzielsierra

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Results-driven Senior Quality Assurance Engineer with extensive testing experience.

United States

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What I'm looking for

I am looking for a role that values collaboration and innovation, offering opportunities for growth and the chance to drive quality in software development.

I am a Senior Quality Assurance Engineer with over 9 years of experience in testing high-traffic web applications across various sectors, including e-commerce and digital media. My expertise lies in improving test efficiency and reducing defect rates by up to 35% through robust manual and automated testing strategies. I specialize in UI automation using Robot Framework with Selenium WebDriver and Python, and I have hands-on experience with Playwright, Cypress, and API testing using Postman.

Throughout my career, I have been recognized for my strong leadership and mentorship abilities, as well as my proactive QA mindset. I excel in cross-functional collaboration and have successfully executed QA processes throughout the entire Software Development Life Cycle (SDLC). My experience includes working in Agile/Scrum teams, where I make confident, risk-based QA decisions to ensure product quality and business success. I am passionate about fostering a culture of continuous improvement and driving QA excellence.

Experience

Work history, roles, and key accomplishments

Current

Senior Quality Assurance Engineer

Current

Rightpoint Consulting LLC

Oct 2020 - Present (4 years 9 months)

Led QA efforts for responsive e-commerce web applications and a connected sports technology project. Validated content updates and executed smoke tests across multiple client projects. Performed manual REST API testing and contributed to large-scale platform launches, ensuring stability and seamless user experience.

Quality Assurance Manual Testing Automated Testing API Testing Cypress Robot Framework Selenium Jira BrowserStack

Functional & Test Automation Engineer

Something Digital

Aug 2019 - Oct 2020 (1 year 2 months)

Automated regression and smoke suites using Robot Framework and Selenium, significantly reducing manual execution time. Designed test plans, maintained automation frameworks, and integrated automated test suites within CI/CD pipelines, ensuring continuous quality checks.

Test Automation Robot Framework Selenium Azure DevOps CI CD Jira Python Git Agile Regression Testing

QA Analyst

Intellisys D. Corp

Mar 2016 - Dec 2018 (2 years 9 months)

Built and maintained automated test scripts for high-traffic media platforms. Conducted manual and automated testing, developed test cases, and managed version control tasks. Collaborated with developers to ensure stability and compliance with UI/UX design.