João Arruda

About

Frontend engineer/lead focused on scalable architecture and reusable UI platforms: built a schema-driven, IoC-based unified filtering system across an app with feature-flagged rollout and strong TypeScript/testing discipline. Also created a standalone React NPS survey package that works across microfrontends (handling peer dependency/version issues) and implemented accessibility improvements for complex interactions like drag-and-drop while leading an Atomic Design → Feature-Sliced Design migration.

Experience

Education

Key Strengths

• Led end-to-end delivery of a unified, schema-driven filter system used across dashboards/views/lists/tables
• Strong frontend architecture: separation of concerns, IoC/context isolation to prevent concurrency conflicts
• Pragmatic state management decisions (Pinia over Apollo cache for domain lifecycle/validation needs)
• Incremental migration approach enabling safe rollout without risky rewrites
• Built a standalone React package for NPS surveys usable across microfrontends with a clean API
• Resolved microfrontend integration issues (React version mismatches via peer dependencies)
• Created a self-contained, production-ready GraphQL layer for a reusable package
• Quality and delivery rigor: RFC-first alignment, feature-flagged rollout, and 80%+ test coverage on core logic
• Accessibility-driven product improvement: designed an accessible alternative to drag-and-drop via popover actions
• Improved maintainability by leading migration from Atomic Design to Feature-Sliced Design with audits, ESLint rules, docs, and team enablement