Sep 29, 2026 · Backend Development

Production-Grade LLM Annotation Pipeline: Pydantic, PostgreSQL & Kafka Patterns

The article details how a SaaS team evolved a fragile LLM ticket-classification script into a production-grade pipeline using strict Pydantic contracts, PostgreSQL state machines with atomic leasing, Kafka outbox patterns, immutable training snapshots, and metric-gated rollouts to handle model drift, replay, and human review safely.

IdempotencyKafkaLLM data pipeline

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Production-Grade LLM Annotation Pipeline: Pydantic, PostgreSQL & Kafka Patterns