What QA engineers actually need to know in 2026.
Free, opinionated, updated continuously — written by a practitioner with 20 years in testing, not by a course factory.
Cutting-edge · 2026
For working engineers
The skills that separate 2026 candidates from 2019 resumes. Compare your stack, find the blind spots before your next interview does.
- 01Agent Skills for Browser Automation
- 02AI-Augmented Test Design
- 03Agentic Testing Architectures
- 04API & Contract Testing with AI
- 05Performance & Chaos Engineering
- 06Observability-Driven Testing
- 07Security Testing for AI Apps
- 08Infrastructure as Code Testing
- 09Mobile & Cross-Platform Testing
- 10Visual & Accessibility Testing
Foundations · 2015–2025
For juniors and career switchers
The non-negotiables bootcamps rush past. Gaps here are why candidates fail interviews they were invited to.
- 11Manual Testing Fundamentals
- 12Programming for QA
- 13Browser Automation with Playwright
- 14API Testing Fundamentals
- 15SQL & Database Testing
- 16CI/CD Pipelines
- 17Git & Version Control
- 18Test Management Tools
- 19Linux & Command Line
- 20Agile & Scrum
- 21Communication & Stakeholder Management
- 22Test Strategy & Quality Metrics
- 23QA Leadership & Mentoring
- 24Technical Writing for QA
- 25Interview Preparation & Career
- 26Testing Like a Senior
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Check the list against your own skills. All of it is free to read and stays free.
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Stuck on a real problem? Post it on the Help Board — experienced QA engineers pick it up in the thread.
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Ready for hands-on help? Book a 1:1 screen-share with an expert. Sessions are what keep the course free.