Full stack, front-end leaning. I build web and mobile products that ship, scale, and stay maintainable.
- Primary: TypeScript, React
- Also: React Native (Expo), Node.js
- Interests: performance, UI architecture, DX, accessibility (a11y)
Frontend
- TypeScript, React, Redux
- Next.js, PWAs
- UI: MUI, Ant Design, Tailwind, Sass
- i18n: i18next
- Accessibility (a11y), UX-focused implementation
Mobile
- React Native, Expo
- Animation: Reanimated
Backend
- Node.js, Express.js
- GraphQL
- ASP.NET (when needed)
Data
- SQL (MSSQL, PostgreSQL)
- MongoDB
Testing
- Jest
- Playwright
- TestCafe, Nightwatch (legacy stacks)
Cloud and tooling
- AWS, Azure
- Git, GitHub, CI workflows
- Systems and UI architecture, component patterns, data flow
- UI architecture for large apps (tables, scheduling, complex state)
- Performance tuning and render profiling
- Reliable workflows, testing strategy, good DX
- Cross-platform patterns (web + mobile)
- Fables.ink: content creation platform with a marketplace, markdown-first editor, structured mechanics, and discoverability.
- Email: dev.tjansen@gmail.com
- LinkedIn: https://www.linkedin.com/in/tjbeirao/
- Portfolio: https://tjansen.dev (WIP)