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Optiver·Software Engineer·Technical Phone Screen·Intermediate

Intermediate
Jul 2026

Summary

Interviewed for a software engineer role at Optiver. Felt like a mix of the standard 'sell yourself' stuff and a genuinely tricky judgment-under-pressure question that I wasn't fully ready for.

Questions Asked (2)

Q1

Give a brief self-introduction tailored to quantitative trading research. Why are you interested in this role, and why Optiver specifically?

Adaptability & Ambiguity
Author's notes

Pretty standard opener but I fumbled the quant angle a bit.

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AI HintsAI Generated

Suggested Approach

Start with a concise self-introduction that highlights your technical skills and any experience with low-latency systems, data analysis, or quantitative projects. Then explain your interest in quantitative trading research by connecting your background to the challenges of solving complex, data-driven problems in a fast-paced environment. Finally, tailor your interest in Optiver by referencing its unique culture, technology, and impact in the trading industry.

Pro tip: Show that you understand Optiver's core values like 'Improve, Adapt, and Win Together' and mention specific technologies or projects that Optiver is known for, such as its proprietary trading systems or market-making strategies.

1. Brief Introduction

Introduce yourself with your current role or education, key technical skills (e.g., C++, Python, algorithms), and any relevant experience in finance or quantitative projects.

2. Interest in Quantitative Trading Research

Explain why you are drawn to quantitative trading research, emphasizing your passion for solving complex problems with data and technology in a high-stakes, collaborative environment.

3. Why Optiver

Articulate why Optiver specifically appeals to you, mentioning its reputation for innovation, its collaborative culture, and its use of cutting-edge technology in trading.

4. Connect to Role

Briefly connect your skills and interests to the Software Engineer role, highlighting how you can contribute to building and optimizing trading systems.

Key Points to Mention

  • Proficiency in programming languages like C++, Python, or Java, and experience with low-latency systems.
  • Understanding of financial markets, trading concepts, or prior projects in quantitative finance.
  • Optiver's culture of collaboration, innovation, and continuous improvement.
  • Optiver's use of technology, such as its proprietary trading algorithms and high-frequency trading infrastructure.
  • Your ability to adapt and thrive in a fast-paced, ambiguous environment.
  • Specific examples of how your skills align with the challenges of quantitative trading research.

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

Q2

Tell me about a time you had to make a high-stakes decision quickly with incomplete information. How did you balance speed versus accuracy, and what estimation or mental-math techniques did you rely on? What would you change if you faced the same situation again?

Adaptability & AmbiguityTechnical Trade-offs
Author's notes

This one got me.

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AI HintsAI Generated

Suggested Approach

Choose a real example where you made a quick decision under uncertainty, ideally in a software engineering context. Structure your answer using a clear framework like STAR, but emphasize the decision-making process, trade-offs, and quantitative reasoning. Conclude with what you learned and how you would improve next time.

Pro tip: Optiver values pragmatic decision-making and quantitative thinking. Show that you can make reasonable assumptions, estimate impact, and act decisively while acknowledging risks—demonstrating you're not paralyzed by ambiguity.

1. Set the Scene

Briefly describe the high-stakes situation, your role, and why the decision was urgent and based on incomplete information.

2. Explain Your Decision Process

Detail how you balanced speed and accuracy: what factors you considered, how you prioritized, and any mental math or estimation techniques you used.

3. Describe the Outcome

Share the result of your decision, including any immediate impact and whether it achieved the goal.

4. Reflect and Improve

Discuss what you learned and what you would do differently if faced with a similar situation, showing growth and adaptability.

Key Points to Mention

  • Use of estimation techniques like Fermi estimation or order-of-magnitude calculations to quickly assess options.
  • Trade-off analysis: weighing the cost of delay against the cost of inaccuracy.
  • Prioritization based on impact and reversibility (e.g., Bezos' two-way door decisions).
  • Communication: how you kept stakeholders informed and aligned during the decision.
  • Risk mitigation: any safeguards or fallback plans you put in place.
  • Quantitative reasoning: using data or metrics to inform your decision, even if incomplete.

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