Problem Solving Under Obstacles and Persistence Questions
How a candidate persists when facing technical roadblocks, resource shortages, or other obstacles. Includes troubleshooting tactics, seeking help appropriately, iterating on approaches, resilience in the face of setbacks, and examples where persistence and creativity led to problem resolution. Interviewers assess grit, adaptive strategies, and the ability to recover momentum after failed attempts.
HardSystem Design
0 practiced
Design a low-latency on-device ML pipeline for a mobile app where network connectivity is intermittent and devices are heterogeneous. Discuss model compression strategies, update/delta rollout mechanisms, safe rollback paths, and how you would persist through a failed rollout affecting many devices.
MediumTechnical
0 practiced
Explain your root-cause analysis approach when a nightly ETL job that feeds training features silently stops producing data partitions. List the instrumentation, logs, and procedural steps you would use to detect intermittent failures, reproduce the issue, and persistently find a fix.
HardTechnical
0 practiced
Your production model must be updated weekly from streaming data, but label lag and concept drift are causing instability. Design an online-continuous learning pipeline that includes safe update triggers, shadow/canary testing, human-in-the-loop validation, and rollback safeguards to allow regular updates without degrading production performance.
EasyBehavioral
0 practiced
Tell me about a time you ran a sequence of failing experiments (e.g., models not converging, large metric variance). How did you maintain momentum personally and for your team, how did you break the problem into smaller hypotheses, and what concrete changes eventually led to success?
HardTechnical
0 practiced
Leadership is reluctant to fund MLOps infrastructure. Prepare a concise business case that quantifies ROI (reduced incidents, faster time-to-deploy), outlines technical risks mitigated by MLOps, and proposes a phased low-risk implementation with pilots that demonstrate measurable returns so you can persistently build momentum.
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