My PM Interview® - Preparation for Success

My PM Interview® - Preparation for Success

Build a way to help people find a dog walker.

How to scope, prioritize, and structure a dog walker marketplace from cold start to defensible product.

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My PM Interview
Aug 22, 2026
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Build a way to help people find a dog walker.

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Clarifying Questions

Before diving in, I would want to align on scope. There are several genuinely different problems bundled inside “help people find a dog walker,” and which one we prioritise shapes almost every product decision that follows.

  • Are we building a new platform or improving an existing one? This determines whether we have supply-side data, existing walker networks, or a cold-start problem to solve. I will assume we are designing a net-new product, which means we need to think about both sides of the marketplace simultaneously.

  • What is the primary frustration we are solving: discovery, trust, or reliability? Basic directory-style matching already exists in Rover (founded 2011, currently operating in over 100 countries) and Wag (founded 2015). If the gap is matching, we are entering a crowded space. If the gap is in-walk trust, there is a more defensible angle.

  • What is our target geography for launch? A dense urban market like New York City, where roughly 600,000 registered dogs live within five boroughs, presents different supply-demand dynamics than a suburban rollout. City density also affects GPS reliability and walker economics.

  • Are we targeting casual, occasional walks or recurring daily walks? An owner who needs a walker three times a week has very different retention economics and trust requirements than someone booking a one-off walk during travel. Recurring demand is where real LTV lives.

  • What is our monetisation model: commission on each walk, subscription, or a hybrid? Rover currently charges approximately 20 percent commission on walker earnings. Understanding our model shapes which metrics we optimise for at launch.

For this answer I will assume we are building a new consumer-facing platform targeting working professionals in dense U.S. urban markets, monetised via a 15 percent commission on each completed walk, and designed specifically around the in-walk trust gap rather than simply replicating the matching features that already exist. I will also assume we are addressing both dog owners and dog walkers as two distinct user groups who need the product to work well for them independently.


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Product Description

The U.S. pet care services market is currently valued at approximately 150 billion dollars annually, with pet sitting and dog walking representing a fast-growing segment estimated at around 4 billion dollars and expanding at roughly 7 percent per year as urban pet ownership rises. The American Pet Products Association reported in 2023 that approximately 69 million U.S. households own a dog, and in dense cities that proportion of owners who rely on paid walking services regularly is meaningfully higher than the national average. Despite the size of this market, the dominant platforms, Rover and Wag, have both faced recurring, well-publicised trust incidents: dogs lost, walks falsified, and owners left with no real-time visibility into what happened during a booking.

The product I am describing is a dog-walking platform that competes not on matching speed or walker supply volume, but on a fundamentally different trust architecture. Every walk on the platform includes mandatory real-time GPS route tracking and time-stamped photo check-ins, sent directly to the owner during the walk itself, verified at the platform level rather than relying on walker self-reporting. Walker onboarding requires a criminal background check, a practical dog-handling assessment, and a minimum of 10 verified prior walks before full platform access. The platform charges a 15 percent commission on each walk, below Rover’s approximately 20 percent, intentionally designed to attract higher-quality walkers by leaving more earnings in their pocket.

The strategic tension worth naming is this: GPS and photo-check-in features are technically copyable. The real moat is the combination of verified walker quality and a trust-signalling experience that becomes a habit for owners, making repeat-booking rates and subscription revenue the long-term defensibility driver rather than any single feature.


Define Goal

The core problem is that dog owners in urban markets have no reliable, real-time way to verify that a walk they have paid for is actually happening safely and as expected while they are at work or otherwise unavailable. Existing platforms provide matching and scheduling but leave a fundamental visibility gap during the walk itself, which is when owner anxiety peaks.

The goal I want to focus on is building owner confidence in every walk, not just in the booking moment, so that the platform becomes the trusted default for recurring, high-frequency dog walking rather than a one-time-use tool.

The north star metric I would track is verified walks with a repeat booking within 14 days, defined as the number of completed walks that include full GPS and photo-check-in data where the same owner books again within a two-week window. I prefer this metric over raw booking volume because it captures both product quality (the walk was verified and went well) and genuine retention (the owner trusted the experience enough to rebook). A platform that optimises only for bookings can mask walker churn, owner anxiety, and single-use behaviour that looks fine in the short term but signals a fundamentally weak product loop.


User Segmentation

Owners

  • Daily-routine working professionals (ages 28 to 42): Own one or two dogs, work full-time in an office or hybrid setting, need a midday walk covered Monday through Friday. High LTV because they need recurring bookings, 3 to 5 walks per week. Most acute anxiety is in-walk trust, since they are entirely absent during the walk. Churn risk is high if a single walk goes wrong or goes dark on tracking.

  • First-time dog-walking-service users (ages 25 to 35): Never used a platform like this before, possibly recently adopted a dog. High conversion sensitivity to trust signals such as verified reviews, photo check-ins, and transparent walker credentials. Lower initial booking frequency but high upside if the first experience is strongly positive, since first-time users who rebook within 30 days have significantly higher 12-month LTV than those who wait.

  • Owners with dogs that have medical or behavioural needs (ages 30 to 55): Dogs with separation anxiety, joint conditions, post-surgery recovery needs, or specific dietary restrictions during walks. Extremely high trust requirements. Willing to pay a premium for a walker who genuinely understands their dog’s specific situation. Likely to write detailed reviews and recommend the platform to other owners in the same situation, making them disproportionately valuable for word-of-mouth.

Walkers

  • Independent professional walkers (ages 22 to 40): Walking is a primary or significant income source. They value consistent booking volume, fair commission rates, and platform tools that protect them from unfair complaints. Real-time tracking documentation is actually a benefit for this group, since it provides objective evidence if an owner disputes a completed walk.

  • Side-income walkers (ages 18 to 30): Students or part-time workers supplementing income. Higher churn risk, but can scale supply in dense urban areas quickly. Need onboarding that is thorough enough to ensure quality but not so burdensome that it discourages sign-up.

I am going to focus the rest of this answer on daily-routine working professionals as the primary owner segment and independent professional walkers as the primary walker segment, because the combination of high booking frequency, acute in-walk trust anxiety, and walker need for documentation protection creates the clearest, most mutually reinforcing case for the real-time verified walk tracking architecture I am proposing.


Pain Points

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