Frontend Error Tracking: Session Replay and RUM
Backend metrics show healthy. The user sees a white screen. Frontend observability closes the gap between server-side …
Web Performance Engineering: Fix LCP, CLS, and INP
Core Web Vitals directly affect search ranking and user retention. The real work is diagnosing why metrics degrade and …
Accessibility Engineering: Beyond Compliance Checklists
Automated scanners catch 30% of issues. Real accessibility requires screen reader testing, keyboard architecture, and CI …
Design Tokens: Scaling Visual Consistency
Most design systems fail not because of bad design, but because the token layer was an afterthought instead of …
Progressive Web Apps: Offline-First That Works
The demo always works. Production offline-first means cache versioning, sync conflicts, and IndexedDB patterns that …
SPA Architecture: Rendering Strategies for Scale
CSR, SSR, SSG, ISR - each rendering strategy has a performance envelope. Choosing wrong means paying the SPA tax on …
Design Systems Engineering: Component Libraries That Ship
A real design system is versioned UI infrastructure - not a style guide or a Figma library.