Ziqi Xia

About

Computer science-oriented builder developing an iOS receipt-splitting app for real users (roommates), focusing on login security, receipt history storage, and future web access for broader usability. Demonstrates a practical, customer-facing mindset with structured integration/debugging practices (Dockerized environments, incremental testing, rollback strategy) and prior experience in communication-heavy retail/bakery roles.

Experience

Education

Key Strengths

• Customer-driven requirements gathering via continuous feedback
• Rapid iteration using Dockerized environments and flexible schema changes
• Methodical API/system integration with incremental testing
• Structured debugging using logs, repro steps, and version checks
• Production incident response mindset (rollback, stabilize, then root-cause prevention)
• Emphasis on maintainable code through testing, documentation, and organization
• Strong customer-facing communication from retail/bakery background
• Motivated by hands-on problem solving and travel/customer work
• Backend architecture decisions with Node/Express (routing, JWT auth)
• Uses Docker to align dev and prod environments for easier testing/debugging
• PostgreSQL performance optimization via indexing and appropriate data types (UUIDs)
• Integrates LLM capabilities via OpenAI API into backend workflows
• High-throughput background processing optimization with in-memory handling and cleanup
• Implements load/queue limiting to prevent backend overload and crashes
• Reduced per-scan processing time to ~30 seconds for an image scanning/parsing backend