Tell me about a time you had to convince an engineering lead to adopt a technology they were initially against.

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Anonymous · Accepted Answer

💬 Question: Tell me about a time you convinced an engineering lead to adopt a
technology they initially opposed.

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⭐️ Answer:

Situation: Sure... at CBRE, our RAG system used semantic search, but it often
missed exact property names and business terms. I proposed adding hybrid
retrieval, combining keyword and vector search. The engineering lead initially
opposed it because it increased system complexity and could hurt speed.

Task: I needed to show that the added complexity solved a real user problem, not
just create a more advanced technical design.

Action: I first listened to the lead’s concerns and agreed on clear decision
criteria: answer quality, latency, and operating cost. I worked with data
science and our business experts to build a representative test set. We compared
the current approach with hybrid retrieval through a small proof of concept. The
results showed where exact-match retrieval improved relevance, while also
exposing the speed trade-off. I recommended a phased rollout with latency
limits, monitoring, and a rollback path rather than forcing a full launch.

Result: The engineering lead supported the approach because the decision was
based on evidence and controlled risk. Hybrid retrieval helped improve retrieval
accuracy by 25% across more than 100,000 documents. I learned that influence
works best when I respect the objection, test the weakest assumption, and make
adoption reversible.

Tell me about a time you had to convince an engineering lead to adopt a technology they were initially against.

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