Product sense: reinvent a home laundry machine pair to win buyers and lift profit
Company: TikTok
Role: Product Manager
Category: Product Design & Strategy
Difficulty: medium
Interview Round: Other
Redesign a washer and dryer with two goals: the machines should sell better, and they should earn more profit. Explain who you would design for, which laundry problems you would solve, what the redesigned product looks like, and how you would know it succeeded on both sales and profit.
```hint Pick the buying moment
People buy laundry machines rarely: when they first set up a home, when an old machine breaks, or when something tempts them to upgrade early. Decide which of those moments your redesign targets, and which part of the laundry routine is painful enough that buyers would pay more to be rid of it.
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### Clarifying Questions
- Are we the manufacturer of these machines, and is the brand positioned as budget, mid-range or premium today?
- Which market are we selling in: one where most homes already own a washer, or one where many households are still first-time buyers?
- Is this a separate washer and dryer sold as a pair, or a single combined machine that does both?
- Is the buyer a household, or also laundromats, apartment buildings and dormitories that buy machines in bulk?
### What a Strong Answer Covers
- What "more sales" and "more profit" each mean here, and the business levers that can move each one.
- A chosen customer segment and buying moment, with the reasoning behind the choice.
- Pain points across the whole laundry routine, including the hand-off between washer and dryer and the upkeep of the machines.
- Solutions ranked by customer value, willingness to pay, cost to build and effect on margin.
- Success metrics and guardrails, plus risks such as reliability, unit cost and cannibalizing existing models.
### Follow-up Questions
- Your redesign adds connected features. Would you charge a subscription for any of them, and how might buyers react?
- Your favorite feature raises the cost of building each unit. How do you decide whether it pays for itself?
- How would the redesign change if the buyer were a laundromat owner instead of a household?
Overview: A product design question asking how you would redesign a home washer and dryer so they sell better and earn more profit. It tests how you interpret the business goal, choose a customer segment and buying moment, map laundry pain points, rank features against cost and margin, and define success metrics.