Horizon

Most banking applications feel dated, slow, and frustrating to use. Users struggle with clunky interfaces, confusing navigation, and a lack of real-time feedback. The goal was to build a modern banking experience that feels as polished as the best consumer fintech apps.

The technical challenge was equally demanding: integrating with real banking APIs (Plaid), handling sensitive financial data securely, and building a responsive, performant application that works flawlessly across devices.

I chose Next.js with full TypeScript coverage to ensure type safety across the entire stack — from API routes to database queries to frontend components. This eliminated an entire class of runtime errors that are critical to avoid in financial applications.

Plaid API integration provides secure access to real bank account data, enabling features like account linking, balance checking, and transaction history. The UI was built with Tailwind CSS for rapid iteration and consistent design language.

Horizon features a clean dashboard with account overview, recent transactions, and quick actions. Users can link multiple bank accounts via Plaid, transfer funds between accounts, and track spending patterns — all with smooth animations and instant feedback.

The application demonstrates modern full-stack engineering practices: server components for data fetching, client components for interactivity, optimistic updates for perceived performance, and comprehensive error handling for edge cases.

The project demonstrates end-to-end proficiency in building production-grade financial applications. From secure API integration to polished UI, every layer of the stack is carefully crafted.

The codebase serves as a reference implementation for TypeScript-first web development, with patterns that scale from prototype to production.