Lucas Xavier

- Reduced the regression cycle of the company’s main product from 30 days to 1 day by developing automated tests using C# and the Appium framework. - Improved release efficiency and eliminated recurring bugs by automating critical test scenarios in the fiscal module using C# and the Appium framework. - Ensured reliability of backend services by validating REST APIs with Postman and performing SQL queries for backend data validation before production delivery. - Defined automation and quality process standards adopted company-wide after being selected by the Tech Lead to join the Quality Engineering team. - Designed and executed manual and automated test cases to validate new features and ensure seamless user experience across different environments. - Collaborated with Agile/Scrum teams to identify, document, and resolve defects throughout the SDLC, ensuring high-quality releases aligned with sprint goals. - Reduced release documentation time from 1 day to seconds by automating the publication process using Python, Jira API, and the customer portal API. - Built a Chrome extension to accelerate the documentation filling of Jira issues by QAs and POs during releases. - Mentored QA interns on test automation and technical best practices.

I worked as a Teaching Assistant for the Object-Oriented Programming course, helping students understand key concepts and best practices in object-oriented design. The course covered topics such as classes, objects, inheritance, polymorphism, encapsulation, design patterns, and design principles. - Assisted students in applying object-oriented principles and solving practical programming exercises. - Guided students through concepts such as classes, inheritance, polymorphism, encapsulation, and common design patterns. - Supported the professor in grading assignments and provided feedback to help improve code quality.

I worked as an Undergraduate Teaching Assistant for the Python Programming course, supporting students in learning and applying core programming concepts. The course covered topics such as string manipulation, conditionals, loops, functions, recursion, list operations, and file handling in Python. - Assisted students in understanding and applying fundamental Python concepts, including strings, loops, and functions. - Guided students in implementing recursion, list manipulation, and file reading/writing. - Provided individual and group support to clarify questions and strengthen problem-solving skills.

- Optimized data workflows by manipulating and transforming datasets stored in MySQL tables. - Collaborated with engineering teams to define key variables and generate actionable performance indicators. - Delivered corporate presentations on Data Science to major clients, including Petrobras, Taesa, and Raízen. - Assessed potential international partners for IIoT-focused projects, contributing to strategic decision-making.

- Automated and optimized recurring tasks by creating Excel macros. - Developed bots to streamline data collection from multiple public agencies in Rio de Janeiro. - Managed and transformed data stored in MySQL and Microsoft Access databases. - Produced reports, mail merges, PowerPoint presentations, and Excel spreadsheets to support business operations.

Full scholarship recipient through ProUni (University for All Program)