Hi, I’m Timothy
I lead AI in Messenger and on Facebook Profile. I previously brought GenAI to Instagram and default end-to-end encryption to Messenger.
Fun Facts
I live in San Francisco with Alyssa Guerrero.
We run a retail store of handcrafted and vintage goods in North Beach.
I’ve read a book each week for over a decade and keep a list here.
I sculpt at our neighborhood pottery studio.
Generative AI Work
Meta AI
I support the teams that bring Meta AI to Messenger and Facebook Profile. I previously brought Meta AI to Instagram. Meta AI helps you find information fast, connect more deeply with the people that matter to you, and express yourself uniquely with words, images, stickers, and chat themes. It understand you when you interact with text, images, and voice.
AI Studio
I support the teams that bring AI Studio to Messenger. I previously brought it to Instagram. With AI Studio, anyone can create an AI character based on their interests, and creators can build an AI extension of themselves.
Privacy Work
End-to-end Encryption
Project Armadillo began with me and 3 other people in a room, and after rebuilding hundreds of features top to bottom, now more than a billion people can know that only they and the person they’re talking to can access their personal conversations.
Privacy Features
I led teams that shipped core features like—app lock, the ability to edit messages after you’ve sent them, the option to turn off read receipts, and Message Delivery Controls (that empower you to decide whose messages reach your Chats list, your Message Request folder, or can’t message or call you at all).
Personal Projects
Fitness Totals
Managing your long-term fitness progress is difficult. Fitness Totals simplifies it by emphasizing weekly, monthly and yearly activity totals and making them available in customizable widgets. A couple of friends and I built Fitness Totals for fun, and we’ve been lucky enough to get very positive press from 9to5Mac, TechRadar, iMore, and MacStories, among others.
Decline Stickers
Alyssa and I built an iMessage sticker pack that helps you decline with confidence. This little product ranked #1 in Art, #3 in Stickers, and #4 paid overall in the iMessage App Store. Decline was featured by Apple on several occasions.
Apple Plugs
The day Apple launched the iPhone 7 without a headphone jack, my friends and I launched Apple Plugs. It’s a parody guerrilla marketing campaign. Adweek, The Verge, The Atlantic and 60 other publications wrote about it. We were trending on Twitter and hit the front pages of Reddit, Imgur and Product Hunt. We leveraged the buzz to launch Nicer Studio.