Freelance PostgreSQL & Supabase Programmer: Query Tuning, pgvector & Zero-Downtime Migrations

Nine out of ten "slow backend API" bottlenecks trace back to unindexed database joins, connection pool exhaustion, or lock-heavy schema migrations. As a Senior Freelance PostgreSQL & Supabase Programmer and Google Cloud Certified Professional Data Engineer, I help companies design, tune, and scale relational, geospatial, and vector databases.

Hire Aldian Fazrihady on Upwork (aldianf) for PostgreSQL performance tuning, Supabase architecture, and hybrid RAG vector indexing.

Core Database Engineering Services

• EXPLAIN ANALYZE & Index Architecture: Designing composite B-Tree, partial, covering, GIN (JSONB/trigram), GiST (PostGIS geospatial & CIDR), and HNSW (pgvector) indexes to turn multi-second table scans into sub-5ms index lookups.
• Connection Pooling at Scale: Configuring PgBouncer, Supavisor, and asynchronous SQLAlchemy + asyncpg pools for serverless Google Cloud Run and AWS Lambda workloads.
• Supabase & Row-Level Security (RLS): Multi-tenant RLS policy optimization, Auth webhook integration, and real-time replication into Elasticsearch or BigQuery.

Related Database Engineering Articles

• Fully Asynchronous PostgreSQL with SQLAlchemy and asyncpg: Connection Pool Tuning
• GeoDjango and PostGIS: Designing a Dynamic 'Nearby Shop' Geospatial API
• Advanced SQL Reference across PostgreSQL, Oracle, MySQL & SQL Server