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Citadel Securities interviews

US / global · Alex DiLeonardo on identifying builders

Initiative includes responsibility

“identify problems no one assigned them to solve”

Alex DiLeonardoChief People Officer, Citadel Securities

Fortune (commentary) · 2026-08-18

Own what happened after the report

Your report changed a staffing decision and contains an error. Who needs the correction today?

Example

Build with the tools, then inspect the result

“Use AI tools every day”

Alex DiLeonardoChief People Officer, Citadel Securities

Fortune (commentary) · 2026-08-18

Show what you learned from a real attempt

What did you improve with AI, and what can you now explain that you could not explain before?

Example

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