Case study
Architecture, delivery, and impact — how this product was scoped and shipped.

10 features8 roles17 technologies
Stack
Technologies
Next.jsReact.jsTypeScriptTailwind CSSRadix UIShadcn/uiZustandTanStack QueryTanStack RouterReact Router v6NestJSPostgreSQLSocket.ioPrismaRediseKYC APIAWS
Access
User roles
AdminManagerAccountantSalesCustomerCar OwnerCustomer SupportMarketing
Overview
Product & engineering
- BonBonCar is a high-traffic rental platform (100,000+ monthly users) that automates the entire car rental lifecycle, from identity verification to financial settlement.
- Booking Engine: Flexible daily/monthly cycles with automated conflict prevention and real-time availability tracking.
- AI-Powered eKYC: Automated identity verification and digital contract signing for maximum security.
- Fintech Integration: Managed deposits, multi-channel payment gateways, and specialized financial reconciliation for accounting.
- Internal CMS & Management: Comprehensive dashboard for managing blacklists, vehicle insurance, fleet registries, and voucher campaigns.
- SEO Dominance: Ranked #1 on Google for the high-competition keyword "Thuê xe tự lái".
- Scalability: Successfully handles high traffic with zero downtime and optimized page performance.
Scope
Key features
- Smart Calendar & Real-time Booking
- Automated eKYC & User Verification
- Financial Reconciliation for Accounting
- Multi-channel Payment Gateway (VNPAY, Momo, Bank Transfer)
- Supply-side Fleet Registration Portal
- Voucher & Loyalty Marketing System
- Operational CMS (Insurance, Blacklist, Manufacturer management)
- Automated Incident & Claim Tracking
- Technical SEO Optimization
- Real-time Notification System
Ownership
My contributions
- Solo Frontend Lead: Handled 100% of the frontend lifecycle from UI/UX design to production.
- Project Management: Independently handled requirement analysis, task estimation, and feature prioritization.
- System Architecture: Designed a scalable modular structure to handle complex Fintech & eKYC flows.
- Quality Control: Established CI/CD pipelines, managed Git Flow, and conducted performance monitoring.
- Database Design: Collaborated on schema architecture to support multi-role financial workflows.
Visuals
Interface gallery
Production screens — layout, density, and real-world states.

