ksqldb Archives - Kai Waehner

Qantas Airline Data Streaming Platform with Apache Kafka for Airline Operations

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5 minute read

From Takeoff to Touchdown: Real-Time Aviation with Data Streaming at Qantas

ByKai Waehner
16. February 2026

This blog post explores how data streaming transforms airline operations by enabling real-time visibility, faster decision-making, and improved customer experience. Using Qantas as a leading example, it highlights how a modern data streaming platform powered by Apache Kafka supports flight operations, crew coordination, baggage handling, and airport collaboration. It also explains technical integrations using Kafka Connect for AIDX message processing. The Qantas story illustrates how real-time data creates tangible business value across the aviation industry.

Fraud Detection and Prevention with Apache Kafka KSQL Apache Flink

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5 minute read

Fraud Detection with Apache Kafka, KSQL and Apache Flink

ByKai Waehner
25. October 2022
3 shares

Fraud detection becomes increasingly challenging in a digital world across all industries. Real-time data processing with Apache Kafka became the de facto standard to correlate and prevent fraud continuously before it happens. This blog post explores case studies for fraud prevention from companies such as Paypal, Capital One, ING Bank, Grab, and Kakao Games that leverage stream processing technologies like Kafka Streams, KSQL, and Apache Flink.

Disaster Recovery and Resiliency with Apache Kafka Data Streaming

5.7K views
3 minute read

Disaster Recovery with Kafka across the Edge and Hybrid Cloud (QCon Talk)

ByKai Waehner
6. April 2022

I spoke at QCon London in April 2022 about building disaster recovery and resilient real-time enterprise architectures with Apache Kafka. This blog post summarizes the use cases, architectures, and real-world examples. The slide deck and video recording of the presentation is included as well.

Cyber Situational Awareness with Apache Kafka

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8 minute read

Kafka for Cybersecurity (Part 2 of 6) – Cyber Situational Awareness

ByKai Waehner
8. July 2021

This blog series explores use cases and architectures for Apache Kafka in the cybersecurity space, including situational awareness, threat intelligence, forensics, air-gapped and zero trust environments, and SIEM / SOAR modernization. This post is part two: Situational awareness with continuous real-time data integration and data processing at scale.

14.3K views
7 minute read

Apache Kafka in the Insurance Industry

ByKai Waehner
7. June 2021

The rise of data in motion in the insurance industry is visible across all lines of business including life, healthcare, travel, vehicle, and others. Apache Kafka changes how enterprises rethink data. This blog post explores use cases and architectures for insurance-related event streaming. Real-world examples from Generali, Centene, Humana, and Tesla show innovative data integration and stream processing in real-time.

Apache Kafka in Aviation Industry including Airlines Airports Manufacturing Retail GDS

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8 minute read

Apache Kafka in the Airline, Aviation and Travel Industry

ByKai Waehner
19. February 2021
4 shares

Aviation and travel are notoriously vulnerable to social, economic, and political events, as well as the ever-changing expectations of consumers. Coronavirus is just a piece of the challenge. This post explores use cases, architectures, and references for Apache Kafka in the aviation industry, including airline, airports, global distribution systems (GDS), aircraft manufacturers, and more.