Direction

This site is my personal project lab and technical review archive. It records backend engineering, database practice, AI/RAG experiments, deployment, observability, and tooling notes.

Experience

Nearly 3 years of database support and backend-related work, with practical experience in deployment, monitoring, logs, load testing, database inspection, and operations support.

Stack

Technical Stack

Backend, databases, and AI/RAG engineering.

Languages Python / SQL

Python for backend services, data workflows, scripts, and AI/RAG project practice.

Backend FastAPI / SQLAlchemy / Pydantic

API design, data models, validation, async tasks, and maintainable service structure.

Data PostgreSQL / MySQL / Redis

Database inspection, DDL maintenance, stored procedures, cache usage, and data issue diagnosis.

AI Backend pgvector / TaskIQ / PydanticAI / Langfuse

RAG, vector search, task orchestration, evaluation, tracing, and AI backend implementation.

Ops Linux / Docker / GitHub Actions / GCP / AWS

Deployment, environment configuration, CI/CD, log troubleshooting, and basic cloud resources.

Observability Prometheus / Grafana / Loki

Metrics, logs, dashboards, and runtime visibility after deployment.