Key contributions

• Built a server-rendered React application on Node/Express with file-based routing via React Router v7, typed GraphQL queries with Codegen, and a shared HTTP client for consistent error handling.
• Implemented SSO and session management across microservices, hardened auth flows and cookies, and integrated account and events admin tooling.
• Introduced Redis-backed caching (cachified) and route/data-layer cache policies; improved perceived performance with compression, code splitting, and bot-aware SSR.
• Delivered full-stack observability with OpenTelemetry traces/metrics (OTLP) and Sentry for error monitoring, release linking, and performance budgets.
• Shipped a design-system-driven UI backed by internal component libraries, Radix primitives, type-safe styling with Vanilla Extract, and Storybook-driven documentation and visual regression guards.
• Internationalized the product with locale-aware routing, dynamic font stacks for Arabic and CJK, RTL support, and translation workflows.
• Added SEO and operational utilities including sitemap generation, structured routing helpers, and analytics/tracking hooks.
• Stack: React, TypeScript, React Router, Node/Express, GraphQL (Codegen), Redis, Vite/Vitest, Testing Library, Storybook, Radix, Vanilla Extract, OpenTelemetry, Sentry.