Ronin POS Development | React TypeScript Developer Work

Event Management Platform

Point-of-sale and inventory management platform for music festivals and live events. As a React TypeScript developer, built core features for vendor management, item tracking, and authentication flows while providing technical support deploying and maintaining POS devices during live events.

What It Solves:
- Clone functionality allowing users to duplicate items, vendors, and events without manual re-entry (eliminated repetitive data entry)
- Centralized vendor sales tracking preventing revenue loss from independent Square devices
- Real-time inventory management across multiple vendors at music festivals
- AWS-powered authentication with OTP delivery via email and SMS
- Password recovery flow with secure token-based reset
- Event organizer dashboard with vendor assignment and reporting

Tech Stack:
React, TypeScript, Hasura (GraphQL + PostgreSQL), AWS (SES for email, SNS for SMS), OTP authentication, REST API integration

Key Technical Wins:
- Clone feature architecture allowing deep copying of complex nested objects (items with modifiers, vendors with multiple locations)
- AWS OTP implementation with fallback delivery methods (email → SMS)
- Password reset flow with secure token generation and expiration handling
- TypeScript type safety across vendor, item, and event data models
- GraphQL mutations for batch item creation via cloning
- Real-time sync between admin dashboard and vendor POS devices

Technical Support Role:
- On-site POS device deployment and configuration for live music festivals
- Vendor-specific organization assignment and authentication setup
- Real-time troubleshooting and device maintenance during events
- Data integrity verification ensuring accurate sales tracking for event organizers

Scale:
Production platform managing multiple concurrent music festivals with dozens of vendors per event. Dual role as developer and technical support specialist ensuring both feature development and operational reliability.