Software Developer at Seansoft Corporation (2024-01 – 2026-04)
- Contributed to a complex mineral management platform, collaborating closely with other engineers.
- Migrated a large legacy AngularJS codebase to React, improving maintainability and performance.
- Optimized the Leaflet map performance by removing unused markers and layers, boosting UI responsiveness.
- Built reusable and responsive React + Bootstrap UI components, improving consistency across the product.
- Created and improved Django API endpoints, with strong validation and reliable data handling.
- Improved audit logging by migrating a custom system to database-level audit logs.
- Implemented Cypress E2E and unit tests to prevent regression in key features.
- Improved security by updating dependencies and fixing vulnerabilities.
- Used AI (Claude Code, Copilot) to orchestrate AngularJS-to-React migration, creating PRDs, implementation tasks, and tests.
Part-time React Developer at Binbooker (2025-03 – 2025-07)
- Improved various parts of the BinBooker app using React and SCSS for a smoother, easier user experience.
- Implemented advanced filtering and reporting features, enabling users to analyze operational data more efficiently.
- Optimized the Bins Management page, significantly improving performance when rendering large datasets.
- Enhanced Stripe integration reliability and added a system-wide maintenance mode to support safer deployments.
Full Stack Developer at Evelan GmbH (2023-08 – 2024-01)
- Contributed to PAUL 360, a secure document collaboration platform.
- Built response and reusable UI components using React and Chakra UI.
- Developed type-safe APIs using Next.js and tRPC for efficient end-to-end data flow.
- Create unit tests using Jest to improve core logic reliability.
- Designed and optimized scalable PostgreSQL schemas with Prisma.
- Implemented shared validation with Zod across client and server to ensure data integrity.
- Participated in PR reviews to maintain consistent architecture and code quality
Software Engineer at Beyonder Inc. (2022-02 – 2023-07)
- Built full-stack web/mobile apps with TypeScript, Next.js, React, React Native, Node.js, MongoDB, Firebase and Supabase.
- Implemented CI/CD pipelines using GitHub Actions, reducing manual deployment steps.
- Translated requirements into Figma prototypes for design alignment.
- Delivered multiple client-facing products (Kokuban (MVP), スマホ de マップ, Doko?).
- Led frontend initiatives, mentoring junior developers and promoting consistent development standards across projects.
