Sijang

Summary

A Korean market intelligence platform covering 3,000+ company profiles, with semantic and full-text search powered by pgvector and Meilisearch for 50+ users.

Role

Solo developer.

Highlights

• —Built a FastAPI + PostgreSQL backend with pgvector and Meilisearch powering semantic and full-text search across 3,000+ company profiles.
• —Engineered a multi-stage NLP pipeline in Dagster using Gemini Flash for triage and Claude Sonnet for structured entity and event extraction, with Voyage AI embeddings and SimHash-based deduplication.
• —Built a Next.js + TypeScript frontend with real-time news timelines and company-level filtering, deployed on Vercel with Supabase Auth and Fly.io API hosting.