389 answered questions
Each one with a summary answer (what you say in 30–60 s) and a detailed answer with code, trade-offs and common mistakes. 160 are real production incidents and system design cases.
Senior Technical Interviews
Real questions, courses that teach you how to answer them, and mock interviews by role and level — including what you should not say, and why.
10 courses, 44 modules
From distributed-systems fundamentals to Go, cloud, security or micro-frontends. Every module ships an executable lab, a self-check and links to the questions it unlocks.
Mock interviews by role and level
QA, backend, frontend, fullstack, DevOps/SRE, architect and tech lead — junior through staff, technical and behavioral.
Graded answers
For every question you get what you should never say and why, what counts as an acceptable answer, and what the ideal one sounds like. That is the gap between passing and standing out.
Where to start
Section titled “Where to start”🎤 Mock interviewsFull interviews by role and level, with graded answers.
🧭 How to use thisThe method: diagnose, study, practice out loud, simulate.
🗺️ Study plan10-day sprint, 8-week track, and routes per job profile.
🎓 CoursesEverything you need to answer the bank, with labs.
📑 Question bankAll 389 questions, indexed by area and type.
📖 Glossary60 terms you should be able to define in 20 seconds.
What a graded answer looks like
Section titled “What a graded answer looks like”In the mock interviews, every question is answered in four layers:
❌ What NOT to say — the plausible-sounding answer that drops you a level, and why it is wrong.
⚠️ Acceptable answer — the one that passes but does not stand out, and exactly what it is missing.
✅ Ideal answer — the one that moves you up a band: mechanism, trade-off and a number.
🔁 Likely follow-up — what they will ask next, and how you handle it.
Because a senior interview rarely scores you on being right: it scores how you justify, which trade-offs you see, and what you are careful not to claim.