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i love crafting the products that shape our lives

Founder & designer making products used by millions for 10+ years

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Selected clients

Twitch

The world’s largest live-streaming platform for watching and chatting with creators in real time.

Product designConsumer
6 projects
Creator profiles
Creator profiles — Profile
01Profile
Creator profiles — Various creators
02Various creators
Music schedules
Music schedules — Upcoming
01Upcoming
TV guide concept
TV guide concept — Detail
01Detail
Stories visioning
Stories visioning — Stories in creator color
01Stories in creator color
Payout transparency
Payout transparency — Breakdown
01Breakdown
Pay creators faster
Pay creators faster — Dashboard
01Dashboard

Centralize

An AI sales agent that maps everyone inside a deal and the warmest path to closing it.

Product designBrandingDesign systemsEnterpriseAI
Booking capture
Centralize — Capture
01Capture
Centralize — Review
02Review
Centralize — Mobile
03Mobile

Wyndly

Online allergy treatment that cures the root cause with prescription under-the-tongue immunotherapy.

BrandingPackagingProduct designMarketing
Allergy care, rebranded
Wyndly — B2B
01B2B
Wyndly — Brand marketing
02Marketing
Wyndly — Landing page
03Landing
Wyndly — Packaging
04Packaging
Wyndly — Card
05Card

Valence

Nadia is an enterprise AI coach that gives every employee personalized leadership coaching, not just executives.

Product designEnterpriseAIDesign systems
Valence
Valence — Home
01Home
Valence — Coach
02Coach
Valence — Mobile
03Mobile

Ohm

An AI platform that runs and learns from hardware testing for battery, EV, and electronics teams.

Product designDesign systemsEnterprise
Operator dashboard
ByteRat — Overview
01Overview
ByteRat — Charts
02Charts
ByteRat — Mobile
03Mobile
ByteRat — Drill-in
04Drill-in

Lilu

A hands-free pump that automates breast-massage to help produce more milk.

Product designConsumerFemtech
App refresh
Lilu — Sign up
01Sign up
Lilu — Profiles
02Profiles
Lilu — Record
03Record

Troop

Pick the best location for remote teams to have their company offsite, then handle all the logistics.

Product designDesign systems
Group travel app
Troop Travel — Trip plan
01Trip plan
Troop Travel — Itinerary
02Itinerary
Troop Travel — Booking
03Booking
Troop Travel — Chat
04Chat

Stardrift

A personalized AI travel agent that plans your whole trip in a single conversation.

Product designBrandingDesign systems
Stardrift
Stardrift — Home
01Home
Stardrift — Flights
02Flights

Increase

A single API for technology companies to move and reconcile money across every major bank rail.

Product designConsumer
Payments platform
Increase — Billboard
01Billboard
Increase — Concept
02Concept

Myria

An invite-only marketplace connecting the ultra-wealthy with the off-market things money can’t easily find.

Product designDesign systemsAIConsumer
Myria
Myria — Overview
01Overview
Myria — Mobile
02Mobile
Myria — Detail
03Detail

Purple Patch

Endurance coaching from IRONMAN master coach Matt Dixon, built for time-starved athletes and executives.

Editorial
Editorial print
Purple Patch — Cover
01Cover
Purple Patch — Interior
02Interior

NDA

This is the coolest project that I can’t talk about — a consumer marketplace on mobile, name under NDA.

BrandingDesign systemsProduct design
Marketplace redesign
Confidential
01Under NDA

About

Portrait of Julie Topp

Get in touch

I love learning as I go—ambiguous spaces and ambitious projects are where I thrive.

I design award-winning consumer products, drawn to the ambiguity of early-stage work and the small teams who do their best work within it. I currently practice independently across product design and branding, and serve as a Senior Venture Partner at Pioneer Fund, where I invest in leading Y Combinator companies.

Previously, I was a Design Lead at Twitch — for global payments and creator payouts, and on the viewer experience team — through the platform’s rapid growth during the pandemic. I joined following Twitch’s acquisition of Revlo, the Y Combinator (S16) company I co-founded and scaled to millions of monthly active users. I hold a Bachelor of Design in Industrial Design from OCAD University in Toronto.

Away from the screen, I’m happiest outdoors — paddleboarding the bay, always on the hunt for cool projects, and training toward the next finish line.

—

Work Experience

  1. 2024 — current

    Independent Designer

    1. Design partner for early-stage startups. 2024 — current
  2. Jan 2023 — present

    Pioneer Fund

    500+ YC alumni investing in each new YC batch. I focus on AI-native founders — evaluating early-stage teams and advising on product and design.

    1. Senior Venture Partner Mar 2025 — present
    2. Visiting Senior Venture Partner Jan 2024 — Mar 2025
    3. Venture Partner Jan 2023 — Jan 2024
  3. Jan 2019 — Jun 2023

    Twitch

    1. Design Lead, Global Payments and Creator Payouts Oct 2022 — Jun 2023
    2. Sr Designer, Viewer Experience Jan 2020 — Nov 2022
    3. UX Designer, Viewer Experience Jan 2019 — Jan 2020
  4. 2015 — 2019

    Revlo (acquired by Twitch)

    Engagement tools for Twitch creators — loyalty points, chatbots, and rewards that turned passive viewers into regulars. Grew to 100K+ streamers.

    1. Co-founder & Head of Design 2015 — 2019

In the news

Currently

Reading
When Animals Dream

David M. Peña-Guzmán

now

The Spark in the Machine

Daniel Keown

now

Where I’m Calling From

Raymond Carver

now

On Beauty

Elaine Scarry

now

Listening
This American Life

Podcast

on repeat

Boy and Bear

Band

in rotation

Search Engine

Podcast

weekly

Making
Phoebe

in progress · built with Claude Code

50% of the population has a 24h cycle, the other half 28d.

A productivity app that understands you have a cycle.

Card Sender

in progress · built with Claude Code

A reminders app to get that card in the mail on time.

His and Hers versions.

TJ’s Bags as Fashion

in progress

Street photography.

If there’s one thing that unites us all right now, it’s the TJ’s bag.

Kind words from kind folks

Julie is the only designer we’ve worked with that works like a founder. She doesn’t require a vision quest to make good design — she just works fast and gets shit done.

She is unafraid to ask difficult questions and is committed to advocating for design. With a critical eye, she can introspect and evaluate work we have produced as a team to dream up novel ways of doing the same things.

I’ve always been impressed by Julie’s ability to think through the user journey and design really wonderful solutions that provide positive experiences for our users. It’s really impressive to see how much thought and detail goes into each choice.

I absolutely love working with Julie. Her greatest strength is her understanding of our users, her ability to think through their problems and think about creative and clear ways to solve them. I always learn so much about our users when I collaborate with her.

Get in touch

The best work starts with a conversation. Let’s get to work. Always happy to talk shop.

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