Your question is Improving System Performance. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Tell me about a time you improved a product's system performance, and how you led team members or mentored juniors during the process.
Asked in the Phone Screen stage, this behavioral question focuses on system performance improvement and leadership or mentorship. Explain the original performance problem, how you diagnosed and prioritized the work, and how you involved or developed less-experienced team members. Strong answers use a specific example, distinguish your individual contribution from the team's work, quantify the performance result, and explain what you learned about technical leadership.