Software engineer interview

The offer isn't won on LeetCode. It's won out loud.

LeetCode gets you to the onsite. The loop itself is decided in the behavioral and system-design rounds — where you explain your thinking, lead the design, and tell the story under pressure. CaseBrick rehearses that part on your real posting, and shows you how you actually come across before the interviewer does.

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No signup to try · audio scored on-device, never uploaded
Tailored to your gaps Scored on content + delivery Free first prep
Why strong engineers still lose the loop

You can solve it. The loop asks whether you can explain it.

The hard part of a senior loop isn't reaching the answer — it's leading the conversation to it, out loud, under pressure. That's the one thing you can't grind alone.

LeetCode isn't the loop

Grinding problems clears the coding screen. The onsite is behavioral, system design, and deep-dives — judged on how you reason out loud, not whether you've seen the pattern before.

You can't hear yourself

You've never heard how you actually come across — the hedging, the rushing, the trailing off when the question gets hard. A friend is too kind to tell you, and you can't catch it on your own.

Reading isn't rehearsing

A question list or a chatbot reply is static. You skim it, feel ready, and freeze in the room. The answer you never said out loud is the one that falls apart.

How it works

Your real loop, rehearsed out loud.

Paste the posting and your resume. CaseBrick builds the exact loop that role runs — the behavioral and system-design questions aimed at your gaps — then coaches you through it until it lands.

01 · Paste

Paste the job & resume.

CaseBrick reads the posting against your resume and finds the gaps they'll push on.

02 · Questions

Get the real questions.

The behavioral and system-design questions this posting actually gets — tailored to your gaps, not a generic list.

03 · Rehearse

Answer out loud, scored.

CaseBrick scores what you said and how you sounded, and names the one thing to fix first. Then runs a full mock.

04 · Track

Track to the offer.

Every rep updates one readiness number, so you know when you're ready — not just hoping.

It isn't generic. CaseBrick knows the rounds you'll actually face — so a payments-infra posting gets a rate-limiter design and an exactly-once follow-up, and you rehearse walking the whole thing, not just naming the answer.

Clientrequests
API gatewayauth · route
Rate limitertoken bucket
Queuebuffer · retry
Workersidempotent
Postgressource of truth
Rehearse the walk:requirements→API shape→data model→scale→trade-offs
Why it's different

The part nothing else does: it measures you.

Every other way you prep leaves the same gap — none of them can hear how you actually sound. CaseBrick scores what you say on the STAR rubric interviewers are trained on, and how you say it on six delivery signals, then names the one thing to fix. Honest, on your device, and blind to your accent.

swe-prep · your question set2 PASS · 1 FOCUS
Tell me about a system you owned end to end.behavioral · ownershipcontent 84delivery steady
Design a rate limiter for our payments API.system designled requirements ✓trade-offs ✓
Your resume is light on distributed systems. How would you keep events exactly-once?gap · distributed systemsyour #1 fix
Substance on the STAR rubric Six delivery signals The one thing to fix Blind to accent
Prep, honestly compared

Everyone prepped the wrong 80%.

Here's what each way of prepping actually does for the interview that decides it — and the gap only CaseBrick closes.

For the onsite loop LeetCode A question list ChatGPT CaseBrick
The real behavioral & system-design questions, from your posting
Hears how you actually sound saying it
Tells you the truth, not what you want to hear
Ranks the one thing to fix next
Tracks whether you're actually ready
Your audio never leaves your device

Not a knock on any of them — grind the algorithms, keep the chatbot. But none of them can hear you, and the loop is decided out loud. That's the gap CaseBrick exists to close.

One number to the offer

Walk in knowing you're ready.

Every rep updates one readiness number that fuses your role fit, how complete your prep is, and how your rehearsed answers score. It moves as you practice — an honest read on where you stand for this specific loop, not a metric that only goes up.

45 It climbs as you rehearse.Start at a cold read, then watch it move with every scored answer and mock round — until the number, not your nerves, tells you you're ready for the loop.
The product

One prep. Every move to the offer.

01 · Know your fit

Grade your resume against the exact role.

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 02 · Tailor your resume

Reshape it to each job, your .docx kept.

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 03 · Rehearse out loud

Full timed mocks by company and role.

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 04 · Track readiness

One honest number, to the offer.

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Get started

Explain it like the senior in the room.

Paste the job and get tailored questions, Resume Studio, and on-device delivery scoring free — no account. Pro unlocks AI answer scoring and unlimited full mock interviews.

How it works
No signup to start · audio scored on-device, never sent to us

For software engineers.

Does it cover behavioral and system-design rounds?
Yes — those are the point. From your pasted job description CaseBrick writes the behavioral and system-design questions that role gets, then scores your answers on substance (STAR rubric) and delivery. Mock interviews run the full loop out loud.
Why not just grind LeetCode, or ask ChatGPT?
LeetCode prepares the coding screen, not the onsite loop — which is decided on how you explain your thinking. A chatbot can write questions but can't hear you; it reads your text and tends to flatter it. CaseBrick scores how you actually deliver your spoken answers, tells you the truth, and tracks your readiness. That's the part that changes the outcome.
Are the questions actually tailored, or generic?
Tailored. CaseBrick reads the real posting against your resume, targets the gaps they'll push on, and writes questions for that specific role. Not a generic bank.
Is it free?
Yes. Paste a job and get tailored questions, gaps, Resume Studio, and on-device delivery scoring free — no account. A free account saves your prep and tracks applications; Pro unlocks AI answer scoring and unlimited full mock interviews.
Is my resume and voice private?
Yes. Your resume is read on your device to pull out the text, and only that text is sent to build your prep. Your audio is scored on your device and never sent to us — recordings stay in your browser for replay.
What if it doesn't help?
The paid plan has a 7-day money-back guarantee. If a week of prep doesn't leave you more ready, email us within 7 days for a full refund.