Two rounds in an FDE loop get the least deliberate prep from engineers, and both are failable: the values round, where "why do you want to work here?" and the failure question live, and the hiring-manager conversation that the documented loops end with. The values round grades whether your reasons are specific to this one company and whether your failure story stays a failure under pressure. The hiring-manager conversation grades whether the ownership your résumé claims survives detailed questioning about decisions, tradeoffs, and results. The Interview Method carries the sources for both shapes and the honesty notes on how firmly to hold each one; this page is where the reps come from.
The failure story, built to survive
The failure question is documented, and so is its intent. Palantir's own interviewing advice is blunt: "We're not fishing for a success story. We want to hear about an actual failure." The instruction sounds easy to follow and is failed constantly, because most prepared failure stories are engineered to make their teller look good, and one probe collapses them.
Start with the selection. Pick a real failure where your decision caused the cost. A production incident you merely responded to is a war story; a project that died around you is a weather report. The round wants a call you made that turned out to be wrong. Once you have one, the story needs four parts, told in order:
- The decision, as you made it. What you chose, and what you knew at the time: the information you had, the pressure you were under, the alternative you passed on. Told without hindsight leaking in — if the opening already signals that you know how it ends, the ownership later will sound rehearsed.
- The cost, when it landed. What the decision broke, stated concretely: the customer who ran on bad data, the date that slipped, the team that spent a week cleaning up. A failure with no nameable cost is a near-miss, and near-misses read as disguised successes.
- What you did in the moment. How you found out, what you triaged first, who you told and when. This part is where competence lives — owning a failure and having handled it well are compatible, and the round is listening for both.
- What you changed durably. Something that outlived the incident and travels with you: a check you now run before that class of decision, a question you now ask that you skipped then. A resolution to be more careful is this part missing.
Bad / Good / Great — telling the failure
Bad — a disguised success. "My biggest failure is that I work too hard and hold my code to too high a standard." Or its subtler cousin, the story where circumstances did the failing: the vendor slipped, the requirements changed underneath you, the reorg killed the project. Both refuse the question's premise — the interviewer asked for a decision of yours that cost something, and heard either a compliment or a weather report. Against advice as explicit as the quote above, this answer also signals that you did not believe the company meant what it published.
Good — a real failure that ends at the platitude. "I committed us to a migration date without checking the data quality first. We missed the date by a month and the customer escalated. The lesson I learned is to communicate earlier and validate assumptions up front." The decision is real, the cost is real, and the telling is honest — this is already better than most answers the round hears. The ending gives back what the opening earned, though: "communicate earlier" and "validate assumptions" are lessons nobody has ever failed to draw, so they carry no evidence that anything about you actually changed.
Great — the decision, its cost owned, and a change that survives the follow-up. "I shipped a customer's data migration without a rollback path. A rollback plan was on my own checklist; I cut it because the dry run was clean and we were behind, and I judged the risk acceptable. It was the wrong call. The migration corrupted a slice of records the dry run had never covered, the customer's team worked from bad data for a day, and they lost most of a week reconciling while I rebuilt state by hand. Two things changed and stayed changed: I write the rollback step before the migration, every time, and I treat a clean dry run as a fact about the dry run's coverage rather than a fact about the migration." What separates this from Good is what it can withstand. Asked "with what you knew then, was the better call makeable?", this candidate can say yes without repositioning: the checklist item existed, the coverage question was askable, and the durable change is exactly the mechanism that would have caught it. Good tells the truth about the past; Great shows the interviewer the mechanism that prevents the repeat.
The probe to expect
A good interviewer will offer you a way out, and the offer is itself the test.
Interviewer: "To be fair, that sounds like the process failed, not you — nothing required a rollback plan, and no review caught its absence."
You: "The process gap was real, and I knew about it when I made the call — the rollback plan was on my own checklist, and I removed it to hold the date. If a required step had existed, I would have argued for an exception that week; the pressure was coming from me. The gap made the mistake possible. My judgment made it happen, and that is why the fix I kept is mine and travels with me rather than living in one team's process doc."
The move: decline the exit. An interviewer who offers to reassign your failure to the process is checking whether the ownership in your story was decoration; accepting the reassignment converts a Great answer back into the Bad rung's disguised success in one sentence. You can acknowledge the process gap as real — it usually is — while keeping the decision, and therefore the failure, yours.
Rep Kit
The section above prints its answers, so after a first reading it rehearses nothing. The two protocols below are the answer-free reps. Paste each into a capable AI chat, unmodified. The first drills the values round: your "why here?" against the Bad / Good / Great on the Interview Method, and your failure story against the four parts above. The second drills the hiring-manager conversation — the loop shape documents it as the round the loop ends with, and its material is your own résumé.
The values interviewer
You are the values-round interviewer for a Forward Deployed Engineer loop.
Persona: friendly, unhurried, and unmoved by rehearsed answers. Ask one
question at a time.
Rules:
1. First, ask me which company I am interviewing with, and do not begin
until I name one. Run ONE full rep at a time: the "why here?" question,
then the failure story, then the grade when I ask for it.
2. Open with: "Why do you want to work here?" Then probe for generic-ness:
take my strongest sentence and my overall reasoning, and ask whether each
would survive with another company's name swapped in. If either would,
say so and make me replace it before moving on. If I state a thesis about
where I create value, push on it once — challenge its weakest link —
before moving on.
3. Then ask for a failure story — a real one, mine, with a cost. If what I
offer is a strength in disguise, a story where only circumstances failed,
or "I can't think of one", say so and demand a different story before
probing. Probe the real one exactly twice:
a. Offer me an exit: suggest the failure was really the process, the
circumstances, or a success in disguise. If I take the exit and
reposition the story, grade me DOWN for it.
b. Press on cost: "What did it cost, specifically?" Accept only a
concrete cost — time, money, a customer, a person's trust.
4. When I say "grade me", mark each of four criteria PASS or FAIL, citing
a specific line of mine for each: (a) was my "why here" specific to this
company, with actual products and customers (or a named deployment or
customer segment) named; (b) did I state a thesis about
where I create value that you could push on, and did it survive pushing;
(c) did I name one cost of the role and accept it knowingly; (d) did my
failure stay a failure under both probes. Grade hard: a typical first rep fails at least two of these — if none failed, re-examine before praising, and never soften a grade because I argue with it.
5. End with exactly one thing to fix on the next rep. Then offer another
rep: the same company told better, or a new company.The hiring manager
You are the hiring manager in a Forward Deployed Engineer loop, running the
conversation the loop ends with. Your job is to find out whether the
projects on my résumé are what they claim to be.
Rules:
1. Run ONE project at a time. I will paste a short summary of one real
project from my résumé; work only from what I give you and what your
questions draw out.
2. Drill in hard, one question at a time:
a. Which decisions were MINE. Listen for "we" that hides "I", and every
time you hear it hiding a decision, ask: "What did *you* decide?"
b. What the tradeoff was — what I gave up, and why that was the right
price at the time.
c. What broke, in development or production, and what I did about it.
d. What the measured result was, and how it was measured.
e. What I would do differently now.
3. Flag every vague or unverifiable claim ("significantly improved", "much
faster", "the team loved it") the moment you hear it — queuing flags one
at a time when several arrive together — and ask for the concrete
version. Do not move on until you get one or I concede I do
not have one.
4. When I say "grade me", mark each of four criteria PASS or FAIL, citing
a specific line of mine for each: (a) ownership clarity — "I" statements
backed by specifics you could check; (b) a tradeoff I defended rather than denied;
(c) an honest limitation — something that broke or underperformed,
stated without flinching; (d) a result stated in the customer's or the
business's terms rather than the system's. Grade hard: a typical first rep fails at least two of these — if none failed, re-examine before praising, and never soften a grade because I argue with it.
5. End with exactly one thing to fix on the next rep. Then ask for the next
project, or the same one told better.What these reps leave behind
Run to a passing grade, the two protocols converge on two artifacts worth writing down: a one-paragraph failure story that has survived both probes, and a one-paragraph "why here" that names products, customers, and a cost of the role you accept. Write both, and treat both as perishable. The failure story drifts as you retell it — each retelling sands a little more cost off — and the "why here" is specific to one company by construction, so it cannot be reused. Re-run the values protocol once per company in the week before that loop, with your current paragraph as the opening answer.
Next: Company Differences — how the labs and Palantir differ in seniority, emphasis, and pay, so you can point the prep at the right door.NextCompany Differences