sofia tam

Hi, I’m Sofia.

I’m fascinated by the intersection of design and technology and looking to build delightful products and experiences for delightful people.

With experiences across product strategy, management consulting, and graphic design, I bring a unique and diverse skillset in analytical problem-solving and user-centered design.

Off the clock, you can find me running to new bakeries, line dancing, and petting Bernese Mountain dogs. I’m currently based in NYC.


 

Featured Work:

 

Playdate prototype for in-chat event card

An integrated messaging extension that modernizes the way you organize group “playdates.”

Created a mobile-first group scheduling tool to eliminate scheduling friction within group chats. Conducted qualitative user interviews to understand common coordination pain points, created specs for the core user experience, and designed a one-tap voting interface with the goal of making it faster and more convenient for groups to share their availabilities.

Role: Product Lead & Designer

Skills: 0 → 1 Product Strategy • Mobile & Web UX • Product Specifications

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Trade-Off Calculator

Example scenario inputs and questions

An interactive dashboard predicting ecosystem trade-offs for notification strategy changes.

Built a 0-to-1 internal analytics app to establish a missing process for evaluating notification changes. By replacing manual guesswork and ad-hoc data requests with interactive modeling, the tool gives Product and Engineering teams clarity on balancing acquisition and retention and reduces evaluation time.

Role: Product Lead (Strategic Finance)

Skills: Data & Analytics Strategy • Internal Tooling • Tradeoff Modeling

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New Retention Engine

End screen from cancellation flow

An improved, multi-channel customer lifecycle engine built to maximize subscriber retention and LTV.

Redesigned the subscription and post-purchase experiences for a small CPG company who relied on monthly subscribers. Ran quantitative analysis and synthesized customer feedback to determine optimal subscription offerings and touch points, resulting in +35% blended retention rate and +7% LTV.

Role: Growth Lead

Skills: Funnel Optimization • Subscription UX • Retention Strategy

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Archive:

Dogma — A location-based mobile app that connects nearby dog owners through in-app messaging and map matching. See more.

Trends n Friends — A social extension concept to Yelp to bridge the gap between discovering restaurants and sharing dining experiences. See more.

Campus Hub — Centralized event discovery mobile platform designed to help users find local events through interests and date filters. See more .


 

View my resume.