Karla Chaves González
QA Manual Tester | Software Quality Assurance Specialist | Remote
Escazú
Summary
Detail-oriented Manual QA Engineer with 2+ years of experience testing web and mobile applications in Agile environments. Proficient in functional, regression, end-to-end, API, and usability testing. Skilled with Jira, TestRail, Confluence, and Postman for defect tracking and test management. Logged and tracked over 470 Jira tickets, with a resolution rate of 54% marked as fixed. Estimated execution of over 9,000 test cases throughout 2.5 years of testing cycles. Strong experience validating REST APIs, executing cross-browser and cross-platform compatibility tests, and collaborating with developers and project managers to ensure high-quality releases. Currently pursuing ISTQB Foundation Level certification.
Overview
6
6
years of professional experience
4
4
years of post-secondary education
1
1
Certification
3
3
Languages
Work History
QA Specialist
Amazon Support Services
01.2022 - 07.2024
- Executed over 8000+ manual test cases across web and mobile platforms, including functional, regression, end-to-end, sanity, exploratory, usability, API, and backend tests.
- Logged and tracked over 470 Jira tickets with a resolution rate of 54% marked as fixed.
- Performed REST API validation with Postman, testing endpoints and verifying status codes and responses.
- Conducted cross-browser compatibility testing (Chrome, Firefox, Edge) and OS-level validation (Windows/macOS).
- Ensured responsive design integrity across various screen sizes and devices.
- Executed scripts and terminal commands for specific test scenarios, providing a strong foundation to learn automation tools.
- Participated in triage meetings and sprint planning with developers and QA Engineers in a Scrum environment.
- Collaborated closely with Project Managers, QA Engineers and developers to prioritize and resolve issues.
- Updated and maintained testing documentation through Confluence.
- Maintained and improved test case documentation in TestRail and Confluence.
- Reduced software defects by efficiently identifying, documenting, and reporting issues to development teams.
- Contributed to continuous improvement initiatives by providing constructive feedback on software design and functionality during review meetings.
- Improved product reliability through thorough regression testing of bug fixes and new features.
- Supported successful product launches by performing rigorous pre-release validation tests in close collaboration with development teams.
Content Test Specialist Trillingual
Amazon Support Services
12.2020 - 12.2021
- Performing software testing and bug detection on third-party (3P) skills for Alexa in English, Spanish, and Portuguese languages
- Applied SOPs and guidelines to determine approval or rejection of Alexa skills
- Managing the ingestion and certification process for 3P content on Amazon Devices
- Assisting Solutions Architects in identifying root causes of failures and providing feedback to developers to address issues
Machine Learning Data Associate
Amazon Support Services
06.2018 - 12.2020
- Transcribing audio clips containing users' Alexa commands with high speed and accuracy, developing accurate typing skills in a demanding environment
- Annotating and classifying users' commands data based on intents and domains, utilizing reasoning and guidelines to ensure accurate data labeling for enhancing Alexa's understanding of user commands
- Conducted research on SOPs and best practices guidelines for accurate data categorization
- Managed high-priority data processing queues in a fast-paced operational environment
- Creating content and correcting pronunciation, pitch, and intonation using phonetics for the Brazilian locale, collaborating closely with native Portuguese speakers to enhance Alexa's personality
Education
Bachelor's - computing science engineering
ULACIT
San José, SJ 01.2021 - 12.2024
Software Validation & Debugging on Intel - based platforms specialist. -
ULACIT
San José, SJ 08.2023 - 02.2024
Skills
Software testing: Manual testing proficiency
Functional Testing Types: Regression, sanity, exploratory, usability, cross-browser, end-to-end, API, mobile, web
- Testing tools: Jira, TestRail, Confluence, Postman, Azure DevOps
- APIs & Backend: REST API validation, Postman, SQL (SQL Server, Oracle, Dataverse)
- Languages: Python, Bash, PowerShell, C# (basic)
- Project Management: Agile, Scrum, SDLC, STLC
- Documentation: Confluence, Jira
- Platforms: Windows, macOS, Chrome, Firefox, Edge
- Critical thinking aptitude
- Attention to detail
- Teamwork and collaboration
- Quality issue identification
Certification
ISTQB Foundation Level (In progress)
Timeline
ISTQB Foundation Level (In progress)
08-2025
Software Validation & Debugging on Intel - based platforms specialist. -
ULACIT
08.2023 - 02.2024
QA Specialist
Amazon Support Services
01.2022 - 07.2024
Bachelor's - computing science engineering
ULACIT
01.2021 - 12.2024
Content Test Specialist Trillingual
Amazon Support Services
12.2020 - 12.2021
Machine Learning Data Associate
Amazon Support Services
06.2018 - 12.2020
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