Overview
Hesap.com is an innovative B2C Fintech platform where users can compare personal loans, credit cards, and other financial products and apply in seconds. I architected and developed both the customer-facing frontend and the complex internal backoffice panels using the Next.js ecosystem.
Technical Challenges
In financial platforms, data accuracy, instant page load times, and SEO performance are the most critical metrics. We needed to update hundreds of different bank campaigns in real-time and present them to the user with zero-latency filtering.
Solutions & Architecture
- State Management: Utilized Redux Toolkit and RTK Query for synchronizing bank data. This prevented redundant network requests and drastically improved performance through intelligent caching.
- Core Web Vitals Optimization: By architecting the application with Next.js App Router (SSR), we improved Google LCP and CLS scores by ~30%. Search engine bots began indexing our pages at lightning speed.
- Security: Implemented stringent security measures against XSS and CSRF attacks, utilizing double-layer data validation (Zod) on both client and server sides.
Impact
Post-launch, the platform saw a significant increase in organic traffic. The reduction in page load times directly correlated with a substantial improvement in loan application conversion rates.