We architect React apps with the right rendering strategy: CSR for rich interactivity, SSR/SSG for SEO and first-load speed, and ISR for dynamic content. Routing, layouts, image optimization, and caching are tuned for Core Web Vitals, enabling globally fast, resilient experiences across devices and networks.

We build reusable, accessible component libraries with tokens, themes, and clear guidelines. Storybook documents states and variants, while strict typing and visual regression guard quality. The result: consistent, brand-aligned UIs that speed delivery, simplify maintenance, and make future products faster to launch.

We choose the simplest effective model: React Query/RTK Query for server cache, Redux Toolkit for shared app state, or lightweight context for local concerns. GraphQL/Apollo supports complex schemas and selective fetching. Predictable patterns reduce bugs, ease onboarding, and keep codebases flexible as features grow.

We optimize bundles, split routes intelligently, defer non-critical scripts, and lazy-load heavy UI. Memoization, selective renders, and image/CDN strategy keep interaction snappy. We measure with Lighthouse and real-user Web Vitals, then iterate until content paints fast and stays stable under real traffic.

Accessible components, keyboard flows, focus management, and ARIA where necessary make interfaces usable for everyone. We combine semantic markup with automated and manual audits, ensuring compliance and real-world usability—so experiences convert better and support fewer edge-case issues.

We migrate legacy stacks (jQuery/AngularJS/etc.) to React with phased rollouts, strangler patterns, and parallel runs where needed. Shared design tokens, incremental component adoption, and dual-write data strategies reduce risk—delivering a modern foundation without disruptive big-bang rewrites.