Billy Lim — Portfolio
2026
A working record

Hello, I'm
Billy Lim.

Product manager, DevRel, and community builder. For years I've helped teachers, developers, and organizers do their best work — most recently as the inaugural AI Product Manager at Uncommon Schools, where I led the rollout of enterprise AI platforms across a network of fifty-seven schools.

Scroll for the long version

Experience

01 / Filter, sort, explore
Filter

Uncommon Schools

Sr. Product Manager, AI

Inaugural AI PM owning two enterprise platforms — MagicSchool and Google Gemini — across a network of 57 schools, doubling MagicSchool adoption from 12% to 25% to meet the org-wide AI OKR.

The Wisco Project

Regional Organizing Director

Launched Northeast regional field and digital operations and managed a team of three staff organizers through the 2024 election cycle.

MongoDB

Sr. Community Engagement Manager, Global Community Programs

Led community product strategy for the global Champions program serving 700,000+ developers, growing the founding cohort by 306% in under three months.

The TEAACH Act Collaborative

Training Facilitator & Curriculum Consultant

Co-led iterative improvement of an AANHPI training curriculum and facilitated five workshops tailored to the specific needs of each user group.

Code for America

Sr. Developer Evangelist, Tax Benefits & National Action Team

Community product and engagement owner for civic tech platforms (GetYourRefund.org, GetCTC.org), where I built and ran a 200+ technical volunteer community that helped deliver $310M in tax benefits.

BerlinRosen

Associate Client Manager & Senior Account Executive

Promoted into business development in thirty-one days (the team's fastest progression on record), and led the pitch that secured a $50K new-client contract.

Organizing Together 2020

Field & Digital Organizer

Became the top organizer on a thirty-five-person statewide team during the early 2020 primary cycle, planning 28+ events with consistent 15–25 attendance.

APIAVote

Programs Manager

Designed and facilitated thirty-five eight-hour civic education trainings across 28 states, partnering with 75+ organizations and earning 90%+ satisfaction from thousands of attendees.

Democratic Party of Wisconsin

Coordinated Campaign Organizer

Ran a midterm field operation that recruited 80+ volunteers, generated 23,500 voter contacts, and produced 47 events through the 2018 cycle.

Success Academies

Program Manager & Founding Lead History Teacher

Built the middle school history curriculum from the ground up, then took it through end-to-end product development as Program Manager, rolling out six units and eight assessments across thirteen schools.

Projects

02 / Hands-on builds
Screenshot of Rose's List — homepage with hero and listings grid
Lovable

Rose's List

Community-powered, GPS-based, neighborhood-level dog-friendly spot finder: more specialized than Yelp or BringFido, works across any U.S. city.

  • Defined product scope, feature prioritization, and UX decisions end-to-end
  • Designed the API strategy (Google Places & Geocoding) to enable scalability across all U.S. cities without manual data entry
  • Used AI-assisted dev to ship a working prototype without writing code — demonstrating ability to build and validate product ideas independently
In development
Screenshot of Product Strategy Copilot — framework list and Ansoff Matrix diagram
Claude Code

Product Strategy Copilot

Turns 36 product strategy frameworks into an AI thought partner for applied scenarios. Augmentation of Department of Product concept.

  • Each framework provides expanded guidance, an example, custom diagram, question & answer dialog, and a framework-specific Claude prompt
  • Conversations convert into typed visuals (Impact/Effort matrix, Five Forces, Kano tiers, AARRR funnel, etc.) via per-framework JSON schemas
  • Zero-backend: Vite + React + Anthropic API direct from the browser, all state in localStorage
Live
Screenshot of Origami Folds app — hero, stats, and project list
Claude Code

Origami Folds

A cross-platform mobile app that ships with a curated library of 12 origami models from beginner to advanced, and can generate fold instructions on demand for any shape via the Claude API.

  • Scoped a fuzzy brief into a shippable v1 by defining jobs to be done and forcing explicit trade-offs on platform, visualization, and AI use upfront
  • Chose SVG diagrams over a full 3D fold simulator — 90% of the value at 10% of the risk
  • Framed AI output honestly with a "may need adjustment" badge instead of overselling reliability
  • Stack: Expo / React Native (iOS + Android + web from one codebase), TypeScript + zod, react-native-svg, three.js, Anthropic Claude API with tool-use for structured output
In development
Screenshot of Digital Image Processor — film preset sidebar, drop zone, and Kodak Portra 400 controls
Claude Code

Digital Image Processor

A desktop app that processes photos with 48 real-world film stocks and camera effects — Portra, Velvia, CineStill, Polaroid, cyanotype, and more.

  • Real film emulation, not Instagram filters: per-channel tone curves, color crosstalk, halation, and grain matched to the stock's actual response
  • Four modes built into one app: a drag-and-drop library with crop and before/after compare, live webcam capture with filters running on the stream, batch processing for whole folders, and savable custom presets
  • Concept to packaged Windows .exe in one session (Electron + React + WebGL2), with a detour to chase down a Chromium ImageBitmap Y-flip bug
Shipped
Screenshot of r/AIProductManagers subreddit — community banner and recent posts
Reddit

r/AIProductManagers

Builder of a Reddit community for product managers working deeply with AI and those interested in transitioning into the subfield.

Over the last nine months:

  • 2K members
  • 25.5K views
  • 800 avg daily unique visitors

Press

03 / Earned media
The New York Times

‘A.I. Literacy’ Is the New Drivers’ Ed at This Newark School

Front page coverage of AI work at Uncommon Schools, where I served as inaugural AI Product Manager.

Feb 2026 →
Los Angeles Times

Biden child tax credit is sending billions to American families. It’s a monumental task.

Coverage of Advanced Child Tax Credit work at Code for America, where I served as Sr. Developer Evangelist for GetYourRefund.org and GetCTC.org.

May 2021 →
The New York Times

Tax Help for People Who Miss Out on a Valuable Credit

Coverage of tax benefits community work at Code for America, where I served as Sr. Developer Evangelist for GetYourRefund.org and GetCTC.org.

Jan 2021 →

Speaking

04 / Talks & appearances
Voltage Control

Facilitation Lab

Demonstrated Edward de Bono's "Six Thinking Hats" framework for exploring problems from distinct perspectives.

data.world

Spring Summit

Served as an Open Data-track speaker, presenting on Code for America's Reimagine911 National Action Team and data fragmentation and siloing in emergency response tech.

Technologists for the Public Good

Virtual Fall Festival

Delivered a lightning talk on Code for America's Reimagine911 National Action Team work.

Wisconsin Democrats

Community event with New York City Mayor Bill de Blasio and Senator Tammy Baldwin

Delivered opening address for VIP surrogates.

Contact

05 / Say hello

If any of this resonates,
I'd love to hear from you.

Email williamlim@pm.me
Telephone +1 414 731 4137
Based in Milwaukee, WI