Prep for the interviewyou'll actually get —not the average of every company's.
Coding, system design and problem-solving questions, tiered by how each company's loop really runs. Every solution ships with a passing test suite.
original problems · tests pass · HLD + LLD design · one-time price · lifetime access
Built the way you'd build it
Written, not scraped
Every problem is original wording. Every coding solution is run against its own test block before it ships — if the tests don't pass, it isn't published.
Tiered per company
Must / should / stretch per company, by how often that pattern is commonly reported in that loop. You work the Must tier first, not a flat list.
Design is first-class
High-level and low-level design questions with diagrams, requirements arithmetic and a level rubric — the round that decides senior offers.
Honest about the process
Interview-loop and level descriptions say "commonly reported" and mean it. No invented pass rates, no fake urgency, a real email for refunds.
Three steps, no course to sit through
- Pick your company. Read its loop and level expectations, then open the guide — the table of contents is already ordered Must → Should → Stretch.
- Work the Must tier. Solve on paper first, then compare against the approach, the solution and its tests. Mark each one done; progress syncs across devices.
- Read every follow-up. Interviewers spend more of the round on follow-ups than on the first solution. The company-variations notes tell you which ones to expect.
Read the problems free. Unlock 13 full solutions with your email.
Every question's problem statement, examples and hints are public. Sign in — no purchase — and the starter pack opens in the same reader customers use: approach, solution, tests, follow-ups.
Pick your company
One-time purchase, lifetime access. Each guide is the full bank tiered for that loop plus the loop itself.
Questions people ask
What exactly do I get when I buy a guide?
Every question in the bank tiered for that company (must / should / stretch), each with the problem, examples, hints, a worked approach, a Python solution with a passing test suite (for coding and problem-solving), complexity, follow-ups, and notes on how that company frames it. Plus the company's interview loop and level expectations, progress tracking, and lifetime access for a one-time price.
Is any of it free?
Yes. The problem statement, examples and hints of every question are free and public. Signing in with your email — no purchase — unlocks the starter pack: 13 must-tier questions with full solutions in the same reader paying customers use. Each company page also shows three complete free questions.
Are these real interview questions?
They are original problems written to exercise the patterns each company is commonly reported to test, at the difficulty those loops run. We do not reproduce leaked interview material or copy LeetCode text. Interview-process descriptions use commonly reported candidate experience and no invented statistics.
How is this different from grinding a generic list?
Tiering. Each question is tagged per company by how often that pattern shows up in that company's loop, so you work the Must tier first instead of a flat list. System design (high- and low-level) is a first-class part of every guide, not an add-on.
Which languages are the solutions in?
Python, and every coding solution is checked against its own test block before it is published. The approach and complexity discussion is language-agnostic.
What if it isn't for me?
Email [email protected]. You can read three complete questions per company and the whole starter pack before paying, so you know what the rest looks like.
Start with the Must tier today
Read the problems free, unlock the starter pack with your email, buy the guide when you've seen it's worth it.