Data Articles

Grab

19 min read

Data Engineering•2025-11-26

Real-time data quality monitoring: Kafka stream contracts with syntactic and semantic test

This post introduces Coban, Grab's platform for real-time Kafka stream data quality monitoring using user-defined data contracts with syntactic and semantic test rules.

Engineering

Kafka

Performance

Data science

Data processing

Real-time streaming

Engineering

Data

Data Articles

Related Tags

Better Experiments with LLM Evals — A funnel, not a fork

Enhancing Flink Deployment with Shadow Testing

Data Mesh at Grab Part II: The Foundational Tools behind Certification

Data Mesh at Grab Part II: The Foundational Tools behind Certification

Background Coding Agents: Supercharging Downstream Consumer Dataset Migrations (Honk, Part 4)

Inside the Archive: The Tech Behind Your 2025 Wrapped Highlights

Human Native is joining Cloudflare

Why We Use Separate Tech Stacks for Personalization and Experimentation

Announcing support for GROUP BY, SUM, and other aggregation queries in R2 SQL

A Decade of Defense: Celebrating Grab's 10th Year Bug Bounty Program

Real-time data quality monitoring: Kafka stream contracts with syntactic and semantic test

SpellVault’s evolution: Beyond LLM apps, towards the agentic future

How we built a custom vision LLM to improve document processing at Grab