🌐 Web Application
Monesave
Reduced checkout time from 45s to 8s through smart ring payments
Role: Full Stack Developer
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Key Results
Checkout Time
45s→ 8s
Payment Success Rate
99.9%
Annual Transaction Volume
$2M+
System Uptime
99.9%
The Problem
Traditional payment methods relied on cards and mobile devices, creating delays and friction in transactions. Users wanted a faster, more convenient way to pay without pulling out phones or cards.
Identified core bottlenecks through research and user feedback
Validated problem with stakeholders and users
Defined clear success metrics
Solution & Approach
Designed and built a secure wearable payment architecture that leverages smart ring technology to enable contactless payments. Implemented real-time transaction processing with NestJS backend, PostgreSQL database for secure transaction tracking, and AWS infrastructure for scalability.
Implementation Steps
Conducted extensive security research and implemented PCI compliance
Built real-time transaction processing engine with NestJS
Designed PostgreSQL schema for transaction tracking and auditing
Implemented AWS infrastructure with auto-scaling and backup systems
Created Next.js frontend with intuitive payment flow
Established monitoring and alerting for payment system health
Impact & Results
Successfully processing $2M+ in annual transactions with 99.9% uptime. Reduced friction in the payment journey, improving user experience and increasing transaction frequency.
Tech Stack & Architecture
Next.js
NestJS
PostgreSQL
AWS
Docker
Lessons Learned
Financial systems require redundancy and failover mechanisms from day one
User education is crucial for new payment technologies
Real-time processing requires careful database optimization
Security should never be an afterthought in fintech
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