Everaldo Gomes

Researched and developed voice-cloning, TTS and AI tooling; built desktop apps and SDKs (Golang/Wails), production prototypes for OCR and real-time voice agents, and maintained web frontends.

Developed new features and optimized large-data migrations for enterprise RoR systems, reducing a migration step from 7 minutes to 3 seconds and resolving long-standing production bugs across the stack.

Maintained and extended RoR and React codebase, implemented Stripe recurring payments and fixed production issues to support ongoing product operations.

Implemented features and language-parsing tooling using RoR, GraphQL and React, and delivered a PEG.js-based parser to support an enhanced rich-text editor.

Upgraded a large Rails app to Rails 4.2 by modernizing JS and Ruby code, removing deprecated patterns, and eliminating N+1 queries to improve performance and maintainability.

Built back-office reports, React drag-and-drop image upload components, and a recurring donations payment page while implementing Figma wireframes and tests for bug fixes.

Led Rails 3.2 to 4.2 upgrade for an app serving ~100 bookstores and 5,000+ tests, documented legacy processes, trained new hires, and implemented social login and a setup wizard.

Lectured technician courses on OOP, Android, Unity3D, and web development technologies, advising final projects and earning a best-proposal award for student work.

Taught C programming, Algorithms and Data Structures (Python), and web development; used automated testing and active learning methods for 80+ engineering students.

Built an admin panel and scheduling module for an elementary school enrollment system using Ruby on Rails and RailsAdmin to streamline enrollment workflows.

Delivered a scheduling prototype within 30 days for fundraising, implementing scheduling workflows using Rails, MongoDB, and form object patterns.

Implemented a PagSeguro payment integration for a technical college using Ruby on Rails and MySQL to enable tuition/payment processing.

Taught C programming and industrial automation courses using CodeBlocks and GitHub, focused on practical programming skills for engineering students.

Contributed to a federal police registration project using Java 5, JSF and Hibernate, working within SERPRO frameworks to deliver government-grade functionality.

Completed M.Sc. research in Informatics and taught undergraduate courses while engaging in academic projects related to software engineering and education.

Supported migration from NATURAL to Java and developed features with JSF, Hibernate and Java EE while interfacing with mainframe systems.

Built a vehicle registration system for Parana's transit department using Java 5 and Hibernate, integrating with local frameworks for DB access.

Activities and societies: Modeling Innovative Business Course (UFPR Innovation Agency); research and teaching activities associated with the master's program.

Completed a Master of Science in Informatics, focusing on advanced topics in computer science and applied research.

Activities and societies: Member of Programa de Educacao Tutorial (PET); workshops on active learning; undergraduate projects in web and systems development.

Completed a Bachelor of Science in Computer Science with coursework and extracurricular involvement in programming, algorithms, and software development.