Set the Product and Technology Strategy for the Nest Video Doorbell as Its CTO

You are the chief technology officer responsible for the Nest video doorbell, the smart doorbell sold under Google's Nest smart-home brand. What strategy would you set for it? Explain where you would take the product, which technology bets and trade-offs you would make to get there, and how you would judge whether the strategy is working. ```hint Start at the front door Before naming technologies, pin down what a doorbell owner needs to happen when someone arrives, and which limits of an outdoor, often battery-powered camera stand in the way. Let those gaps choose your bets. ``` ### Clarifying Questions - Does my remit cover only the doorbell, or also the shared camera and video platform behind every Nest camera, and do I own hardware, firmware, cloud, apps and machine learning together? - Which outcome matters most to leadership: unit growth, subscription revenue, share against rivals such as Ring, or strengthening the wider Google smart home? - What time horizon should the strategy cover, and are there fixed constraints such as a hardware refresh cycle, a budget, or support commitments for doorbells already installed? - Is the strategy for one country or for every market where the doorbell is sold, given that rules on recording video and recognizing faces differ? ### What a Strong Answer Covers - A clear goal for the doorbell, grounded in what owners need at the front door and where current doorbells fall short. - Technology bets tied to those gaps: battery and connectivity limits, edge versus cloud intelligence, reliability of capture and alerts, and privacy and security. - How the doorbell fits the wider smart-home ecosystem and the subscription business, including the cloud cost of storing and analyzing video. - A sequence for the bets that respects their dependencies, plus the team structure and build-versus-buy choices needed to deliver them. - Technical and business metrics with guardrails, and the competitive, privacy and execution risks with how the plan would adapt. ### Follow-up Questions - A rival launches a doorbell with local storage and AI detection and no monthly fee. How does your strategy respond? - Your best on-device person-detection model needs more compute than the current battery doorbell can afford. Do you wait for new hardware, move detection to the cloud, or shrink the model? Explain the trade-off. - How would you keep supporting doorbells already in customers' homes while moving the product line to a new platform?