Francisco Perez Leiros

Perform Verification and Validation (V&V) of test plans and author comprehensive test cases for industrial automation systems using Beckhoff TwinCAT PLCs. Conduct testing on systems deployed across Cloud platforms and CentOS-based environments, ensuring compliance with functional and safety requirements. Analyze and interpret SQL-based log data generated by automation systems to verify system behavior, troubleshoot issues, and support root cause analysis.

Led end-to-end QA process including comprehensive test planning, execution, and technical support. Developed and maintained automated testing framework using Playwright with TypeScript, integrated with Azure DevOps CI/CD pipeline. Conducted manual and automated testing across multiple types: functional, regression, integration, system, and user acceptance testing. Significantly improved testing efficiency and product quality throughout the development lifecycle.

I reviewed functional and design specifications, identified system modules for testing, and developed and executed test cases for various functionalities. I conducted cross-browser testing , performed manual testing, and carried out a range of testing types (functional, smoke, regression, acceptance, integration, accessibility, E2E) on web and mobile devices Android & iOS. Used Postman for API, managed test cases with TestRail, tracked issues with Jira, participated in Agile meetings.