AI-assisted support ticketing for small teams

Tech: FastAPI · Gemini · React · Clerk · Neon · Cloud Run

Intake → async AI triage → operator console → email-backed resolution — without a heavy helpdesk.

• Structured Gemini triage (category, priority, escalation, draft reply)
• ~57 pytest + ~46 Vitest tests covering backend and frontend
• Designed for GCP free tiers and serverless async workers

Sequential multi-agent system with local RAG — Solo

Tech: Python · Gemini · Google ADK · ChromaDB · Sentence Transformers · Pydantic

Domain-scoped RAG pipeline for staged reasoning across isolated knowledge domains without cross-contamination.

• Chunked 774 knowledge articles into 6,454 ChromaDB vectors (on-prem / no cloud dependency)
• Processed 29 consecutive pilot tickets at 96.6% citation grounding
• Pydantic schema validation anchors every response to retrieved sources

Walkability & spatial accessibility with OSM data

Tech: Python · OSM / Overpass · spatial analysis · HTML dashboard

End-to-end pipeline measuring Network Service Void % — street segments outside walking access to both schools and health centers.

• Building footprints as a population proxy
• Primary access tier at 561.5 m (regional walking-distance percentile)
• Built for local planners and DEP cohort collaborators

2D environmental survival online game — lead developer & artist

Tech: C# · .NET · IL2CPP · Unity

Modular game architecture with deterministic progression and performance-focused systems.

• DAG dependency model across 6+ subsystems for valid quest state transitions
• Reduced frame drops by 41%; contributed to a 60% increase in player retention
• Lead author on research presented at the 2025 4th International Conference on Digital Transformation and Applications, Semarang, Indonesia · Play on itch.io