About Me
Professional summary
QA Engineer with 7+ years balancing Manual and Automation Testing across web, desktop, API, and hardware platforms. Skilled in Functional, Regression, API, Performance, and End-to-End Testing, catching critical defects and creating detailed test plans, test cases, and documentation. Equally experienced architecting automation frameworks integrated with CI/CD pipelines, automating UI and API testing, and leveraging AI-powered tools to accelerate test design and execution. Agile/Scrum collaborator working closely with developers and product owners, remote-first, and fluent in English.
- Heredia, Costa Rica
- +506 8766 2321
- geotarsis@gmail.com
- linkedin.com/in/jjcg
“I believe most problems have a solution if you're willing to look for it, even the tricky ones, or the ones where the obvious options are gone. Good code matters, but so does the team behind it — take care of every piece and it runs stronger, together. Give me an internet connection, a laptop, and a problem worth solving, and I'll find a way through it.”
Leadership & Impact
Where I add value beyond writing tests
Test Strategy & Architecture
Architected end-to-end test strategies across Agile and Waterfall SDLCs, aligning coverage with release risk and business priorities.
Automation Framework Development
Built and maintained scalable automation frameworks powering smoke, sanity, regression, and performance suites.
API & Backend Validation
Engineered REST API test coverage — authentication, authorization, and session management.
Cross-Functional Collaboration
Partnered with developers, Product Owners, BAs, and clients to scope requirements and de-risk releases.
AI-Accelerated QA
Leveraging AI tools to speed up test-case generation, automation development, and defect analysis.
Mentorship & Team Enablement
Mentored incoming engineers on coding standards and automation best practices, boosting team velocity.
Experience & Education
Professional background
Work Experience
QA Engineer
2023 – 2026
QAT Global
- Architected and executed test strategies across the full SDLC, supporting Agile and Waterfall delivery models
- Engineered REST API validation coverage — authentication/authorization, tokens, session management
- Hardened application reliability through systematic negative testing against edge cases and invalid inputs
- Validated web applications built on React and Angular
- Leveraged AI tooling (Codex) to accelerate test-case generation and automation framework development
Selenium · Playwright · POM · Postman · SoapUI · JMeter · Jenkins · Gradle · TeamCity · Azure DevOps · JIRA · React · Angular
Software Automation Engineer
2020 – 2023
Micro Focus
- Engineered and maintained automation frameworks powering smoke, sanity, regression, and performance suites
- Delivered manual and exploratory testing coverage, triaging user-facing defects
- Drove release readiness as an embedded member of the Scrum team
- Mentored incoming engineers on coding standards and automation best practices
RHEL · Linux SUSE · Jenkins · Java · Selenium · Gradle · TestNG · Cypress · Postman · Oracle · PostgreSQL · JIRA · Octane
Testing and Automation Engineer
2019 – 2020
HPE
- Automated QA validation for ProLiant Gen10 server hardware and configuration layers
- Architected scalable automation solutions with cross-functional teams
- Engineered functional, integration, and performance testing suites end-to-end
RHEL · Linux SUSE · Unix · Jenkins · Java · Python · C++ · Selenium · Gradle · TestNG · Oracle · MySQL · Perl · Pandas · Jupyter
Education
Bachelor's Degree, Systems Engineering
Universidad Nacional — Heredia, Costa Rica
SINAES-accredited program at the Escuela de Informática (Facultad de Ciencias Exactas y Naturales), focused on the analysis, design, and development of information systems. Curriculum spanning programming, database design & data modeling, computer networks, information security, software quality/testing, and IT project management.
Core Strengths
Technical Skills
Languages, frameworks & tools I work with
Languages & Scripting
Automation & Testing
Frameworks & Design Patterns
CI/CD & Build
Version Control
Databases
Web Development
Data Analysis
Operating Systems
Agile & Project Management
AI Tooling
Languages Spoken
Testing Playbook
Types & methodologies I apply across the SDLC
Contact
Let's talk