Oscar Reyes

Senior QA Engineer with 8+ years of experience delivering high-quality software in Agile and distributed environments. Specialized in manual and automation testing for web, mobile, and desktop applications, supporting full testing lifecycles from requirement analysis to release validation. Hands-on experience with Selenium (Java), Cypress (TypeScript), and Playwright (TypeScript) building and maintaining automation frameworks that improve regression efficiency and testing reliability.

Strong background in API testing (Postman), ETL/data validation, defect lifecycle management, and collaboration with developers and product stakeholders. Experienced mentoring QA engineers, supporting QA leadership activities, and contributing to continuous improvement of testing practices.

Business Analyst Quality Assurance at Inspire Innovations (2025-10 – 2026-03)

Executed manual testing for web applications and acted as a bridge between QA and product teams.

• Executed manual testing for web applications validating business requirements and functional behavior.
• Analyzed user stories and technical documentation to clarify missing requirements and acceptance criteria.
• Collaborated with developers and product stakeholders to ensure delivered features matched business expectations.
• Produced monthly release documentation consolidating delivered features, fixes, and improvements.
• Created Jira tasks when testing identified functional gaps or improvement opportunities.
• Acted as a bridge between QA and product teams translating testing findings into actionable product feedback.

Quality Control Engineer at SoftServe (2024-08 – 2025-12)

Designed and executed manual test cases, performed API and ETL testing, and temporarily acted as QA Lead.

• Designed and executed 50+ manual test cases validating business and technical requirements across multiple releases.
• Performed REST API testing using Postman validating backend integrations and response accuracy.
• Conducted ETL testing validating data pipelines, transformations, and reporting outputs.
• Executed functional, regression, and exploratory testing ensuring stability before production releases.
• Logged and tracked defects in Jira providing clear reproduction steps and severity classification.
• Temporarily acted as QA Lead distributing testing workload and monitoring QA progress per sprint.

Senior QA Engineer at GlobalLogic (2023-07 – 2024-06)

Led end-to-end QA activities, trained new QA engineers, and defined QA KPIs.

• Led end-to-end QA activities including test planning, execution, and release validation.
• Designed and executed API test collections using Postman validating backend services.
• Performed ETL testing ensuring accuracy of data ingestion pipelines and reporting outputs.
• Trained and onboarded new QA engineers accelerating project ramp-up.
• Participated as technical interviewer for junior QA candidates.
• Defined and tracked QA KPIs including test coverage, defect tracking, and sprint testing progress.

Senior QA Engineer at 3Pillar Global (2022-01 – 2023-03)

Conducted API and ETL testing, coordinated offshore QA teams, and performed code analysis.

• Conducted REST API testing using Postman validating backend functionality.
• Supported ETL testing ensuring data consistency across integrated systems.
• Coordinated offshore QA teams supporting distributed testing efforts.
• Created and maintained structured test plans and test scenarios.
• Performed code analysis and reviews in Ruby during refactoring activities.
• Designed targeted test scenarios based on updated logic paths.

Senior Software Tester at Caterpillar (2021-03 – 2022-01)

Planned and executed manual and automated test cases, developed Python utilities, and designed standardized defect lifecycle.

• Planned and executed manual and automated test cases for critical workflows.
• Developed Python automation utilities supporting QA validation and data verification.
• Designed a standardized defect lifecycle adopted across multiple QA teams.
• Improved collaboration by unifying defect tracking and reporting processes.
• Supported testing across multiple sprint cycles ensuring stable releases.
• Served as Vice President Education in Toastmasters strengthening leadership and communication skills.

Software Tester / QA Coordinator at IND Consulting (2016-12 – 2021-03)

Built Selenium automation suites, executed manual testing, coordinated QA team activities, and created training guides.

• Built Selenium automation suites in Java covering key regression workflows.
• Executed manual testing across multiple enterprise applications.
• Coordinated QA team activities and supported testing schedules.
• Collaborated with HR defining QA engineer hiring profiles.
• Created internal QA training guides aligned with ISTQB practices.
• Helped establish the foundation for future automation testing efforts.

Bachelor's Degree in Computer Systems Engineering – UVEG – Universidad Virtual del Estado de Guanajuato (2027-09)

Certification in Data Science & Artificial Intelligence – UVEG – Universidad Virtual del Estado de Guanajuato