Master the SDET interview process.
A proven, three-stage playbook for QA, TE, and SDET roles.

Includes access to a full sample chapter from The SDET Playbook
Featured in Software Testing Weekly | Built by an engineer with real interview-loop experience
Tired of Knowing the Material but Failing the Interview?
A lot of candidates work hard. That's rarely the problem.
- You know automation tools, but can't connect the dots under pressure
- You give correct answers, but not senior-level answers
- You study everything, but prepare very little for how interviews actually work
The SDET Playbook was built to fix that.
The three-stage interview system most candidates miss
Recruiter screen
- What candidates usually do: Recite their resume, list tools, and hope for rapport
- What the Playbook teaches instead: How to position your experience, control the narrative, and signal seniority in a 30‑minute conversation
Technical screen
- What candidates usually do: Jump straight into solutions or memorize answers
- What the Playbook teaches instead: How to break problems down, ask the right clarifying questions, and communicate structured thinking under pressure
Final loop
- What candidates usually do: Treat each interview in isolation
- What the Playbook teaches instead: How to show consistency, depth, and trade‑off thinking across system design, coding, and behavioral interviews
Want to learn how to apply this system step by step?
Start the free 5-day crash courseEarly Praise for The SDET Playbook
"A very comprehensive playbook for anyone, from seasoned professionals to newbies, in the software testing industry. It is well-structured, easy to follow, and has an abundance of practical, real-life examples. The readers will definitely benefit from it, especially the parts about the interview process, tips, and real interview sample questions. Very impressive work!"
— Chunrong Chen, Senior Test Engineer, Top Tech Company
"This book is an absolute game changer for professionals sharpening their interview strategy. It not only demystifies the interview process but presents a structured and thoughtful approach to navigating today’s competitive environment. Whether you're a recent graduate or an experienced developer brushing up for your next role, this book is the ultimate resource for securing your dream job."
— Jesus Mendez, Test Engineer, Top Tech Company
This is for you if:
- You're a QA or SDET aiming for senior or top-tier roles
- You pass screens but fail loops
- You want structure, not more random resources
This is not for you if:
- You want shortcuts without thinking
- You're looking for a generic coding course
- You don't want feedback or frameworks
Free 5-Day Course
This isn't a newsletter. It's a short, focused reset on how to approach interviews, with early access to the core SDET Playbook system.
- Day 1: The TESTED framework Get a full sample chapter from The SDET Playbook and learn a systematic approach to deconstruct any “How would you test X?” scenario and deliver a senior-level answer.
- Day 2: The interview mindset Learn how to stop approaching interviews like an exam and start thinking like a consultant who is there to understand problems and propose solutions.
- Day 3: The resume rule Discover the #1 mistake on most tech resumes and learn how to reframe your experience around impact, not just responsibilities.
- Day 4: The STAR method secret Everyone knows of the STAR method. Few use it well. Learn the “70% action rule” to make behavioral stories compelling and memorable.
- Day 5: Your next steps Understand what to focus on after the course, how the pieces fit together, and how to continue preparing without overloading yourself.
Start Your Free 5-Day Course Now
Enter your email below to get instant access to Day 1 and the free sample chapter. The rest of the lessons will be delivered daily to your inbox.
About the Author

As a software quality professional for two decades, Hien Nguyen has designed, built, and consulted on quality solutions for some of the world's leading technology companies. He wrote The SDET Playbook to solve a critical problem he observed: brilliant engineers who understand technology but lack a coherent strategy for the high-stakes interview loop.
Connect with Hien on LinkedIn →