I've now conducted behavioral interviews at three large companies and been a candidate at a handful more. Pfizer's behavioral round is probably the most structured 'values-first' process I've sat through. Let me break it down.
The values they test against
Pfizer calls these their 'Attribute Framework' or something similar. In practice the questions cluster around: Courage: speaking up when you disagree, taking calculated risks Excellence: going beyond the obvious, quality standards Equity: inclusive team practices, advocating for underrepresented voices Joy: finding meaning in the work (yes, they actually ask about this)
The 'joy' piece surprised a few people on my team when we discussed prep. It sounds soft but the underlying question is 'are you intrinsically motivated or purely mercenary.' They're building long product cycles, not sprint-to-IPO startups.
Questions I've seen or heard in 2025-2026 loops Tell me about a time you pushed back on a decision you thought was wrong. What happened? Describe a situation where you had to make a tradeoff between speed and quality in a regulated environment. Tell me about a time you had to adapt your communication style for a non-technical stakeholder. Walk me through a project that didn't go as planned. What did you learn? Tell me about a time you supported a colleague from a different background. (Equity question, be specific.)
What works
STAR format, but with heavy emphasis on the R (result). They want actual outcomes: user impact, process improvement, metric improvement. Vague conclusions ('the team was better aligned after') don't land well.
For the regulatory/quality tradeoff question specifically: if you have any experience with compliance, validation, or audit-readiness, lead with that. It's a differentiator at Pfizer that doesn't matter at most tech companies.
What doesn't work
Humble-bragging disguised as 'failure' stories. They see through it. Pick a real failure, explain what you'd do differently, don't pivot too fast to 'but it all worked out.'
The round is typically 45-50 minutes with 4-5 questions. They usually leave 5 minutes at the end for your questions. Ask something thoughtful about the team's roadmap or the regulatory landscape they navigate.