Westpac Group Interview Questions
The questions to prepare for Westpac Group interviews, across all roles. Questions from real interview reports rank first. Updated daily.
Calculate each user's rolling 30-day average transaction volume using PostgreSQL window functions.
Aggregate monthly sales by product category and use LAG to calculate month-over-month changes.
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Inc.
Benjamin MooreApproach for maintaining data quality and integrity across ETL pipelines.
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Plan a phased rollout for a new operational initiative with clear stages, success criteria, and risk controls.
Define campaign success using business KPIs, funnel conversion, acquisition cost, and leading indicators tied to outcomes.
Define a success metric for a new feature that captures real user value, not just raw usage.
Identify major online experimentation pitfalls and explain practical mitigations for SRM, network effects, peeking, and novelty.
Reduce hallucinations in a RAG system even when retrieval is already correct, using grounding, verification, and evaluation.
How to develop metrics for toxicity, bias, and alignment in an LLM.