Rahul Agarwal.

Tech Lead @LeversLabs

Mar 2024 - Present

• Engineered a client-side caching layer with IndexedDB and Dexie.js, reducing API calls by 80% and significantly accelerating data access.
• Built a client-side querying engine with DuckDB, enabling instant SQL operations on parquet files and cutting server round trips by 60%, dramatically improving front-end speed.
• Developed 20+ highly customized Recharts visualizations to present metric-based stories and forecasts.
• Created a 15+ component library (modals, drawers, accordions, etc.) using Shadcn and Tailwind CSS, complete with Storybook documentation.
• Architected the app using Next.js App Router, applying best practices for server/client components, layouts, pages, and Auth0-protected route handlers.
• Integrated Auth0 for secure, tenant-separated OAuth2.0 authentication and role-based authorization, enabling multi-tenant access control.