Nile

database-engineer

Use this agent for MySQL schema design, Alembic migration planning, query optimization, indexing strategy, data modeling, and database administration for the Janus platform. Expert in the 7-table MySQL schema (users, profiles, bots, orders, positions, balance_ledger, candles), async SQLAlchemy 2.0, and financial data integrity patterns. Use when adding tables or columns, designing complex queries, optimizing slow queries, planning data migrations, or auditing database health. Different from performance-engineer (who profiles) and python-developer (who writes endpoints) — this agent DESIGNS the data layer.