Open to opportunities

Alejandro Ortiz Trejos

@alejandroortiztrejos

Message

ISTQB-certified QA Software Engineer specializing in automation and accessibility testing.

Costa Rica

Message

What I'm looking for

I am seeking QA roles focusing on automation and accessibility testing within Agile teams where I can reduce defects, improve coverage, and grow into leadership.

I am a QA Software Engineer with over four years of hands-on experience testing web, database, API, and mobile applications across iOS and Android platforms. I hold the ISTQB Certified Tester Foundation Level (CTFL) and am completing a Bachelor's in Software Engineering at Cenfotec University.

At Greenslate I created and executed manual test cases that reduced post-release defects by 20%, performed API testing with Postman, tracked defects in Jira, documented in Confluence, led UAT sessions, and built basic data-driven automation using Selenium. As an SDET intern at OfficeSpace Software, I worked with Watir, Ruby on Rails and Cucumber to improve UI automation coverage and performed accessibility testing with Axe DevTools and WAVE.

I bring strong analytical and critical thinking, Agile-oriented problem-solving, adaptability, and resilience, and I am fluent in Spanish with advanced English (C1). I focus on delivering reliable, accessible software through disciplined testing and continuous improvement.

Experience

Work history, roles, and key accomplishments

SDET Intern

OfficeSpace Software

Feb 2025 - Sep 2025 (7 months)

Developed UI test automation using Watir, Ruby on Rails and Cucumber, improving automation coverage; performed accessibility testing with Axe DevTools and WAVE as part of an accessibility team.

Watir Ruby on Rails Cucumber Accessibility Testing UI Test Automation Test Coverage

Senior QA Software Engineer

Greenslate

Sep 2019 - Feb 2024 (4 years 5 months)

Created and executed manual test cases reducing post-release defects by 20%; performed API testing with Postman, tracked defects in Jira, documented in Confluence, and developed basic data-driven Selenium automation.