Great move targeting the P&I track in NY—it’s a fantastic, high-growth area for Bain, but the recruiting process is definitely tailored to specialized roles, which means the interviews reflect the day-to-day work.
For your first question, the business case will feel familiar to standard MBB prep: you still need structured frameworks, strong quantitative skills, and MECE logic. The crucial difference is the context. You won't get a typical cost-cutting case; your case studies will focus specifically on product economics, digital strategy, and platform growth. Think market sizing for a B2B SaaS launch, or assessing the profitability of a new feature set. The underlying skill is still structured thinking, but applied to the lifecycle of digital assets.
Regarding the technical round, you won't be asked to code or draw detailed system architecture. For a consulting PM role, "technical" is essentially code for "Product Sense and Execution." They are testing your ability to think strategically about how a product is built and improved. Expect questions on defining KPIs (e.g., identifying a North Star Metric for a given platform), product design (e.g., "How would you redesign the onboarding flow for X application?"), and prioritization methodologies (e.g., RICE, MoSCoW). The goal isn't deep engineering knowledge; it's demonstrating that you can translate business strategy into actionable product roadmaps.
The key across both rounds is to use a structured, consulting-grade framework (e.g., Users, Needs, Goals, Solutions) even when discussing an ambiguous product problem. Articulate the strategic rationale behind every design or feature decision you propose.
Best of luck!