Software Developer
Xelpmoc Design and Tech Limited
- Optimized SQL queries and introduced Redis caching by restructuring joins and indexing high traffic tables, cutting response time from 75 seconds to under 10 seconds and roughly quadrupling API throughput.
- Built a real time interview system with WebRTC and Socket.IO supporting 100+ concurrent video sessions at under 200ms latency.
- Delivered 30+ React Native screens for a blockchain credentials wallet, integrating 15+ webhooks for real time data sync across iOS and Android.
- Led architecture for a tourism services platform on React and React Native, reducing production defects by 40% and improving delivery velocity by 25%.
- Shipped twin production apps for a senior living network serving 50+ residents and 20+ staff, improving operational coordination by 35% through real time sync and notification workflows.
November 2022 - April 2024