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Build UIs that are fast, accessible, maintainable, and tested
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Build UIs that work for all users including keyboard navigation, screen readers, and WCAG 2.2
Design multi-agent systems with robust tool interfaces, state management, and failure handling
Build ML systems with disciplined training, evaluation, deployment, and safety practices
Design APIs that are stable, ergonomic, and evolvable
Design systems at the right scale with explicit trade-off documentation
Design services that are reliable, observable, secure, and maintainable
Baseado na classificação ocupacional SOC
| name | frontend-engineering |
| description | Build UIs that are fast, accessible, maintainable, and tested |
| difficulty | senior |
| domains | ["web"] |
Frontend engineering is full-stack engineering from the network edge to the pixel. Performance, accessibility, maintainability, and security are all first-class concerns — not features to add later.
/review workflow for frontend PRsEvery component has states: loading, empty, error, populated, and edge cases. Define and implement all of them before calling it done.
See accessibility-engineering skill. Apply before visual polish.
Define before building:
Measure with Lighthouse on a representative device.
Prefer: local state → lifted state → context → global store (in that order). Only reach for global state when local state genuinely doesn't work.
Wrap sections of the UI in error boundaries. A crash in one section should not take down the whole page.