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Openai·Software Engineer·Technical Phone Screen·Senior

Senior
May 2026

Summary

Interviewed for a software engineering role at OpenAI. Just one question but it covered a lot of ground, basically a full project deep-dive that touched on everything from technical decisions to personal impact.

Questions Asked (1)

Q1

Walk me through a recent project: what were the goals, what did you personally contribute, how did you approach it technically, what trade-offs did you make, and what was the outcome?

Technical Trade-offsSystem DesignAdaptability & Ambiguity
Author's notes

This felt like five questions stitched into one and I kind of fumbled the sequencing.

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AI HintsAI Generated

Suggested Approach

Choose a project where you owned a significant technical component and can clearly articulate the problem, your specific contributions, and the reasoning behind your decisions. Structure your answer as a narrative that highlights the goals, your approach, the trade-offs you evaluated, and the measurable outcome, while emphasizing collaboration and learning.

Pro tip: Quantify the impact of your work (e.g., latency reduction, cost savings, user growth) and be transparent about trade-offs you considered but didn't choose—this shows depth and maturity. Also, tie your decisions back to the company's values, like scalability and safety, if relevant.

1. Set the context and goals

Briefly describe the project, its importance, and the specific goals (e.g., performance, scalability, user experience). Mention any constraints like deadlines or team size.

2. Explain your personal contribution

Clarify your role and what you specifically did. Avoid vague 'we' statements; focus on your actions, decisions, and code.

3. Detail your technical approach

Walk through the architecture, technologies, and algorithms you used. Explain why you chose them and how they addressed the goals.

4. Discuss trade-offs and alternatives

Describe the key trade-offs you made (e.g., consistency vs. availability, speed vs. quality) and why you chose one over another. Mention any alternatives you considered.

5. Share the outcome and learnings

Quantify the results (e.g., metrics, impact) and reflect on what you learned or would do differently. Highlight any unexpected challenges and how you adapted.

Key Points to Mention

  • Clear problem statement and project goals
  • Your specific technical contributions and ownership
  • Architecture and technology choices with rationale
  • Trade-offs evaluated (e.g., performance vs. cost, simplicity vs. flexibility)
  • Quantifiable outcomes and impact
  • Lessons learned and how you handled ambiguity or changes

AI-generated suggestions, not part of the candidate's original notes. May be inaccurate — verify before relying on them.