Analytical Background Questions
The candidate's analytical skills and experience with data driven problem solving, including statistics, data analysis projects, tools and languages used, and examples of insights that influenced product or business decisions. This covers academic projects, internships, or professional analytics work and the end to end approach from hypothesis to measured result.
HardTechnical
0 practiced
Design an approach to attribute conversion funnel drops to specific product changes when multiple experiments and releases overlap. Describe how to structure event data, tag releases/experiments, use causal analysis or attribution windows, and present a prioritized list of probable causes to stakeholders.
MediumTechnical
0 practiced
A large analytics query frequently times out in your BI tool. Propose two long-term architectural solutions and two short-term mitigations to make the dashboard stable while retaining freshness. Include considerations for materialized views, pre-aggregation, caching, and cost implications.
HardSystem Design
0 practiced
A critical analytics table will have its schema changed (column rename and type change). Design a rollout strategy that prevents breaking hundreds of downstream dashboards: include automated impact analysis, compatibility checks, migration plan (dual-write, shadowing), consumer communication, and rollback plan.
MediumTechnical
0 practiced
How would you measure pipeline freshness and set SLIs/SLOs for a near-real-time analytics pipeline that should deliver data within 2 minutes of event occurrence for 99% of events? Define metrics, how to compute them, alert thresholds, and what remediation steps automated alerts should trigger.
HardTechnical
0 practiced
You need to compute per-user top-k items in a streaming setting over an unbounded event stream (1B events/day). Describe a scalable algorithm and state management approach (using Flink, Spark Structured Streaming, or similar) to keep approximate top-k per user, considering memory constraints and fault tolerance.
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