QA Engineering · Automation · System Design · AI

Become the QA Engineer
companies want to hire.

Practical interview preparation, system design, automation architecture and AI for QA engineers moving toward senior-level roles.

✓ Senior-level interview problems✓ System design✓ Practical QA engineering

Knowledge Base

Latest from QASimplified

Practical content for modern QA engineers.

System Design10 min read

Design a Scalable Test Automation Platform

Learn how to design a scalable automation platform from a QA and SDET perspective.

#Automation#System Design#CI/CD
Interview Solved8 min read

Senior Automation Engineer — M&T Bank

A practical breakdown of a senior automation interview problem and how to approach it.

#Selenium#Java#Automation
QA + AI9 min read

How to Test an AI Agent

Understand the key challenges, test strategies and evaluation approaches for AI agents.

#AI Testing#AI Agents#LLM
Automation8 min read

Building Reliable Selenium Automation

Practical techniques for creating maintainable and reliable UI automation.

#Selenium#Java#Automation
API Testing9 min read

API Testing for Senior QA Engineers

The API testing concepts and interview areas senior QA engineers should understand.

#API#Microservices#Testing
Career7 min read

What Changes When You Become a Senior QA Engineer?

The shift from executing tests to owning quality, architecture and engineering decisions.

#Career#Senior QA#Leadership

Free Resource

Senior QA Interview Pack

50 senior QA questions, automation problems, API testing, system design scenarios and frameworks for answering at a senior level.

Free. Practical. Built for senior QA interviews.

Books & Guides

Structured knowledge. Built for working QA engineers.

Go beyond scattered tutorials with practical guides designed around the skills senior QA engineers actually need.

Available now

Service to Product

📘

A practical guide for QA engineers who want to move beyond test execution, understand products deeply and become stronger engineering contributors.

View book
Coming soon

System Design for QA Engineers

📘

Learn how to design testable, scalable and reliable systems — and approach system design questions from a QA and SDET perspective.

Coming soon