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Interview & Placement

Prep — the placement finale: interview rehearsal + portfolio presentation · prereq the core path + the Capstone (you rehearse defending real work you've shipped); no new concepts here · ~1–2 hours, best spread across several short sessions in the run-up to a real interview

An interviewer rarely stops at the question on the card — the real test is the follow-up ('why not X instead', 'what would you change now'). A memorized answer survives the first question and falls apart on the second. The deck already exists; the job here is rehearsal — drilling it until your answers come out unprompted, in your own words, under a little pressure.

TL;DR — in 30 seconds:

  • The deck already exists; this module is rehearsal, not new content — drilling answers until they come out unprompted, in your own words, under a little pressure.
  • The loop: Pair (mock interview surfaces your weak theme) → Do (answer 5 aloud, log gaps) → Self-check (rate each theme) → back to Pair, or on to Retain.
  • No mandatory gate — you self-check repeatedly until the real interview, and the placement rep's 2-minute capstone walkthrough rehearses exactly how a real interview opens.

Learning objectives

By the end, the candidate can:

  • Deliver a concise, structured, out-loud answer for a question from each of the 5 prep themes (behavioral, CI/CD & deployment strategies, security, AWS & serverless, Kubernetes/architecture & observability) without reading from notes.
  • Defend their own project's choices under a follow-up 'why not X instead' — not just recite the prepared answer.
  • Name their single weakest theme and know which specific cards need another rehearsal pass before a real interview.
Do it with Claude

Pair, Do and Prove run in Claude Code, with the onboarding-tutor skill. Click a button to copy the exact prompt, then paste it into Claude Code in this repo.

1. Learn · how to use this prep deck

There's nothing new to learn here — you already lived these answers on a real project. This beat is about how to rehearse effectively, not what to study:

  • Treat each card as retrieval practice: cover the Back, answer out loud, in under ~90 seconds, then reveal.
  • Don't memorize the Back verbatim — extract the shape (situation/problem → your approach → the trade-off → the result) and rebuild it in your own words each time. An interviewer's follow-up question exposes a memorized script instantly.
  • The deck is grouped into 5 theme subdecks (see Retain below) — drill one theme at a time when you're weak on it, or shuffle the whole parent deck for mixed rehearsal closer to the interview date.
  • If a card's answer feels thin, dated, or no longer matches how you'd explain it today, that's a signal to refresh it — not to skip it.

The rehearsal is a loop, not a one-shot: Pair surfaces your weak theme, Do drills it and logs gaps, Self-check tells you whether to loop back or move on.

flowchart LR
    P["Pair: mock interview"] --> D["Do: answer 5 aloud, log gaps"]
    D --> S["Self-check: rate each theme"]
    S -->|weak theme found| P
    S -->|80%+ on every theme| R["Retain: keep drilling to interview day"]

Read next: Why retrieval practice works (retrievalpractice.org — the research behind cover-answer-reveal beating re-reading). Retain deck (beat 5): SE Onboarding::13 Interview Prep.

2. Pair · have the tutor mock-interview you

Drive the onboarding-tutor:

  • "Mock-interview me from the SE Onboarding::13 Interview Prep deck — one question per theme, random order, and push back with a real interviewer's follow-up ('why not X', 'what would you change now')."
  • "Here's my answer to [question] — was that concise enough for a live interview? What would you cut or tighten?"
  • "Based on how I'm answering, which theme am I weakest on?"

Done when: you've taken at least one full mock-interview pass and can name the theme(s) the tutor pushed back on hardest.

3. Do · answer 5 aloud, record gaps

Exercise: Pull 5 cards, spanning at least 3 themes, and answer each out loud, unprompted (no peeking at the Back first), timing yourself to roughly 90 seconds per answer.

  • Starting point: SE Onboarding::13 Interview Prep (or a single theme subdeck if you're targeting a weak spot).
  • Deliverable: a short gap log (a scratch note is fine) — one line per question: what was missing, what ran too long, or what trade-off you forgot to mention. "Nothing — clean answer" is a valid, useful entry too.
  • The tutor coaches but doesn't hand you the answer — if you blank, ask for a one-word hint, not the script.
  • Then, the placement rep: give a 2-minute out-loud walkthrough of your capstone — the PR, one design choice you can defend, and one thing you'd change now. This is exactly how a client interview opens.

Done when: you have 5 logged entries (gap or "clean") and one clean 2-minute capstone walkthrough — the artifact is the gap log, not a flawless performance.

Common gotchas

  • Memorizing the Back verbatim. Fix: extract the shape (situation/problem → your approach → the trade-off → the result) and rebuild it in your own words each time — a memorized script survives the first question and falls apart on the interviewer's follow-up.
  • Only preparing the happy-path answer, not the follow-up. Fix: for every card, also rehearse "why not X instead" and "what would you change now" — that follow-up is the actual test, not the first answer.
  • Rehearsing silently instead of out loud. Fix: answer out loud, timed to roughly 90 seconds, every time — silent recall feels stronger than it is and doesn't train the delivery a live interview needs.
  • Cramming one long session right before the interview. Fix: spread rehearsal across several short sessions in the run-up — retrieval practice compounds with spacing, it doesn't work as a single cram.
  • Answering with generic deck content instead of your own project's specifics. Fix: anchor every answer to your own shipped work (the capstone, in particular) — a generic answer can't survive "walk me through your reasoning," a specific one can.

4. Self-check · lightweight — no mentor gate

Not a mandatory gate. The standard modules run a mandatory, heavier-bar Socratic gate (see the Socratic gate); this one doesn't. Interview-readiness is closer to fitness than to a one-time proof of understanding — you self-check, repeatedly, until the real interview.

Ask yourself, per theme:

  1. Can I answer every card in this theme unprompted, out loud, without reading the Back first?
  2. Am I answering with my own project's specifics, or a memorized script? (A real follow-up question will expose a script.)
  3. Is there a theme where I hesitate on more than 1 in 3 cards? That theme needs another Do pass before a real interview.

Self-check passes when: you can unprompted-answer each theme at roughly 80%+ (your own honest count) and can name your single weakest theme. No mentor sign-off required.

5. Retain · fight forgetting

Study the module deck SE Onboarding::13 Interview Prep — its theme subdecks let you drill one area at a time:

  • 1 Behavioral & background
  • 2 CI/CD & deployment strategies
  • 3 Security & secrets
  • 4 AWS & serverless
  • 5 Kubernetes, architecture & observability

The deck syncs to your Anki automatically on pull (anki-sync). Done when you can recall, from the deck, a structured answer for every card across all 5 themes.

Check yourself — why does rebuilding an answer in your own words each time matter more than memorizing the deck's Back verbatim?

Because a memorized script survives the first question but falls apart on the interviewer's follow-up ("why not X instead", "what would you change now"). Rebuilding the shape (situation → approach → trade-off → result) each time trains you to reason live, not recite.

Check yourself — what should you do if you blank on a card during Do?

Ask the tutor for a one-word hint, not the full script — the tutor coaches but doesn't hand you the answer, since the point of the exercise is retrieval practice, not re-reading.

Check yourself — how do you know a theme needs another rehearsal pass before a real interview?

If you hesitate on more than 1 in 3 cards in that theme during self-check, it needs another Do pass. Self-check passes overall once every theme is at roughly 80%+ unprompted and you can name your single weakest theme.

Key takeaways

  • This module is rehearsal, not new content — the 5 themes are answers you already lived on a real project; the work is drilling them until they come out unprompted, in your own words, under pressure.
  • Rebuild the shape, don't memorize the Back — situation/problem → your approach → the trade-off → the result — because a memorized script survives the first question and falls apart on the follow-up.
  • The real test is the follow-up, not the first answer — always rehearse "why not X instead" and "what would you change now" alongside the happy-path response.
  • Answer out loud, timed, not silently — silent recall feels stronger than it is and doesn't train the delivery a live interview actually needs.
  • There's no mandatory mentor gate here — you self-check repeatedly (per theme, roughly 80%+ unprompted) until the real interview, closer to a fitness practice than a one-time proof.
  • The 2-minute capstone walkthrough with the placement rep rehearses exactly how a real interview opens — the PR, one defensible design choice, and one thing you'd change now.

Go deeper — curated resources

Hand-picked external material to take this topic further — the best books, courses, talks, and writing. Cost is tagged Free, Free online (full text/course free on the web), or Paid.

Gate log (mentor fills on pass)

Optional here — no mandatory mentor gate for a prep module. Fill in if a mentor spot-checks you, or log your own self-check passes.

  • Date passed:
  • Passed by: / checked by:
  • Weak spots noticed (feeds system improvement):