Back to ISTQB, This Time with AI
Preparing for and passing CT-GenAI certificate, and what I’d tell you before you book the exam
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TEST ENGINEERING NOTES
Engineering quality for complex systems
I write about how complex software systems fail, scale, and how we can build evidence that they work.
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Performance Engineering
Latency, load, profiling, queues and system behavior under pressure.
Distributed Systems
Consistency, concurrency, retries, failures and fault tolerance.
AI Systems
Evals, uncertainty, sampling, non-determinism and AI reliability.
Blockchain Engineering
Consensus, P2P networking, indexers, finality and performance.
Latest Notes
Claude Certifications 2026: Exams, Preparation & My Experience
Thinking about a Claude certification? I passed Developer and Architect Foundations. Here’s the exam structure, preparation plan, tips, and my verdict.
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How to learn Claude and Claude Code for free in 2026
Review of the official Claude courses from Anthropic
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5 big ideas from "Test Automation Fundamentals" book
My review of the "Test Automation Fundamentals" book by Manfred Baumgartner, Thomas Steirer, Marc-Florian Wendland, Stefan Gwihs, Julian Hartner, Richard Seidl
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5 big ideas from "Taking Testing Seriously" book
My review of the "Taking Testing Seriously: The Rapid Software Testing Approach" book by James Bach and Michael Bolton
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From a player to a coach - 5 ideas from the Quality Coach`s Handbook
5 ideas from "The Quality Coach`s Handbook" by Anne-Marie Charrett
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Beyond the test case: 5 Insights from Elisabeth Hendrickson’s ‘Explore It!’
My insights from "Explore It!" book by Elisabeth Hendrickson
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Book Review: Software Testing with Generative AI
My insights from "Software Testing with Generative AI" book by Mark Winteringham
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