0-to-1 Ownership, Critical Feedback Both Ways, Defining Success, and Why OpenAI

In a behavioral round of a software engineer onsite loop, the interviewer asks a set of standard behavioral questions. Each one expects either a concrete story from your own experience or a clear point of view backed by an example: 1. A 0-to-1 experience: something you built from nothing. 2. A time you received negative feedback. 3. How you give negative feedback to someone else. 4. How you define the success of a project or a product. 5. Why you want to join OpenAI. Prepare an answer for each part. Expect the interviewer to probe for specifics: what you personally did, what changed as a result, and what you would do differently. ### Clarifying Questions - Should the stories come from my current role, or can they come from any point in my career? - For the 0-to-1 question, does a new feature inside an existing product count, or should it be a new product, service or system? - For the question on defining success, should I answer in general terms or anchor the answer on a specific project I led? ### Part 1 — A 0-to-1 experience "Tell me about something you built from zero to one: a product, service, tool or system that did not exist before you started." ```hint Show the decisions The interesting part of a 0-to-1 story is what happened before anything existed: how the problem was chosen, what was cut from the first version, and how you found out it worked. ``` #### What This Part Should Cover - Why the thing needed to exist, and how you validated that need. - Your personal role, and the scoping and technical decisions you made under uncertainty. - A measurable or observable outcome, and what you learned. ### Part 2 — Negative feedback you received "Tell me about a time you received negative feedback. What was it, how did you respond, and what changed afterward?" ```hint Pick real criticism Choose feedback that stung and was at least partly right, and make the change in your behavior visible in a later situation. ``` #### What This Part Should Cover - A specific, non-trivial piece of feedback and its context. - Your reaction, how you checked whether the feedback was fair, and the concrete change you made. - Evidence that the change lasted. ### Part 3 — Giving negative feedback "How do you give negative feedback to someone? Walk me through a time you did it." ```hint Answer with a case Anchor your approach in one real conversation: what you observed, how you raised it, and what the other person did next. ``` #### What This Part Should Cover - Preparation, timing and setting. - Specific, behavior-focused content tied to impact rather than to personality. - Follow-through, the outcome, and the state of the working relationship afterward. ### Part 4 — Defining success "How do you define the success of a project or a product?" ```hint Separate outcomes from outputs Distinguish shipping on time from the change the work was meant to cause for users or the business, and say when and how each is measured. ``` #### What This Part Should Cover - Outcome metrics versus delivery metrics, plus guardrails that must not regress. - Agreeing on success criteria before the work starts. - A real example judged against those criteria. ### Part 5 — Why OpenAI "Why do you want to work at OpenAI?" ```hint Make it two-sided Connect something specific about the company's work to something specific you would bring, instead of praising the company in general terms. ``` #### What This Part Should Cover - Motivation grounded in specific, publicly known work of the company that you have used or followed. - How your skills and past work fit the role. - Why this move makes sense at this point in your career. ### What a Strong Answer Covers - First-person stories with clear personal ownership, not "we did". - Quantified or observable results, and honest reflection on mistakes. - Consistency across answers, for example a success definition in Part 4 that matches how the Part 1 project was judged. - Concise delivery that leaves time for follow-up questions. ### Follow-up Questions - In your 0-to-1 project, what did you decide not to build, and how did you know that was the right call? - Tell me about a time negative feedback you gave was not received well. What did you do next? - Describe a project that met its success metric but that you still consider a failure, or the reverse. - What would you want to work on first if you joined, and why?