Giovani Ohira

Architected and delivered a production-grade mobile application using React Native, defining software architecture across mobile and backend layers (Node.js + Supabase). Integrated payment processing, implemented offline support with a caching layer, and designed JWT-based authentication with Google OAuth for secure API communication over HTTPS/TLS. Built and maintained Linux-based VPS infrastructure including Nginx reverse proxy, SSL/TLS with Let’s Encrypt, user/permission management, and server security hardening. Created CI/CD pipelines with GitHub Actions to automate builds and continuous deployment of backend services to production. Provided technical leadership through code reviews, architectural guidance, and enforcement of engineering best practices.

Reduced client platform testing time from 6 hours to 12 minutes (97% reduction) by developing proof-of-concept tests and initial smoke/critical-path automation suites. Built automated E2E tests using JavaScript, Playwright, and CI/CD pipelines with emphasis on stability, repeatability, and scalability. Validated reliability and product quality through end-to-end automated testing using Playwright and internal frameworks. Defined automation scope and strategy from functional requirements and system analysis, translating real user flows into robust test suites. Performed technical discovery of client architecture, critical flows, risks, and API interactions to achieve comprehensive coverage, bridging customer needs with technical execution to reduce manual workload.

Supported 10+ workshops and served 300+ active weekly users by delivering a reliable and scalable web application for managing academic workshops and monitoring student attendance. Designed and developed the application using Vue.js, Express.js, and SQLite. Built a scalable RESTful API backend with Express.js and Node.js integrated with SQLite for efficient data storage and retrieval. Implemented core features including event creation, participant registration, real-time check-ins, and automated certificate generation for students and faculty.