About

Allen Wan

Photo

A full-stack feature engineer experienced in LLM personalization and search.

Based in the SF Bay Area. Fascinated with distilling complexity into sharp, delightful user experiences.

I also love games, both from a game design perspective and as a player.

Experience

  1. 2025 – now

    Senior Software Engineer · Google – AI Personalization

    LLM personalization: memory, multi-turn, and personal context, across all AI Mode and AI Overview queries.

  2. 2021 – 2025

    Software Engineer III · Google – Shopping Search Features

    Full-stack web development: refinements, result quality, and page layout.

  3. 2019 – 2021

    Software Engineer II · Google – Shopping Mobile App

    Full-stack iOS development: built the Shopping mobile app from the ground up.

  4. 2018

    Software Engineer Intern · Facebook – Monetization

    Full-stack iOS development: created an augmented reality ad format with try-on features live within the Facebook feed.

  5. 2018

    Software Engineer Intern · Google – User Feedback

    Full-stack web development: created tools to automate and organize user feedback data across Google products.

  6. 2017

    Software Engineer Intern · Apple – AppleCare

    Full-stack web development: built tools that cut day-long employee workflows to minutes.

  7. 2016

    Software Engineer Intern · Acenda

    Full-stack web development: e-commerce website templating and building rich shopping features.

Toolbox

Filler

Languages

  • TypeScript
  • JavaScript
  • Java
  • C++
  • Python
  • Kotlin
  • Swift

Web & mobile

  • React
  • Next.js
  • Node.js
  • iOS

AI & data

  • Prompt tuning
  • Agentic coding
  • Metrics analysis
  • Colab notebooks

Games

  • Godot