Hello! My mission is to build technology that generates economic value and helps advance our civilization.

I am currently an Entrepreneur-In-Residence with Human Capital and Bain Capital Crypto, exploring new ideas in web3.

Since becoming intrigued by Ethereum in 2017, I started building independent projects in my spare time. Some of my favorites include: A no-code token minter on Polygon (#1 on Product Hunt), bridge search tool (winner at Jump Crypto hackathon), payments with stablecoins (winner at HackMoney), and a climate NFT game (winner on Pioneer in 2018). After attending 10 crypto hackathons (and using prize money to boost my morale through crypto bear markets), I turned my nights and weekends into my full-time endeavor in 2022.

Previously at Brex, I was responsible for the Card Fraud, Card Growth, and Rewards teams as an engineering manager. I joined as an early engineer focused on receipts, ERP integrations and helped build our first-ever external API. You can find out more about my time at Brex on Built In NYC.

Prior to that, I was a backend engineer at Apple Siri working on TV & Flights search, and at Microsoft building cloud infrastructure & developer tools.

My parents rode the “Made in China” wave to sell Chinese-manufactured goods in Brazil. I grew up speaking Chinese and Portuguese natively, so English is my third language. I also saw the Brazilian Real depreciate by 50% against the US dollar, and the anxieties it caused my family’s importing business.

I was the first in my family to attend university. I graduated from Brown, where I was also a CS teaching assistant, hackathon addict, and founder/president of 3 student organizations.

I have a strong curiosity for the intersection of computer science, financial systems, and liberal arts. I’ve enjoyed writing about these subjects for publications like Hacker Noon.

I love to read, engage with builders (especially from underrepresented groups), and frequently practice HIIT and martial arts.

Say hello at julia@juliawu.me! Thank you for stopping by.


Lua Token Minter

A no-code token minter on Polygon (scalability solution for Ethereum). Create a token in under 1 minute and pay <$0.1 in gas fees. Zero coding required.
#1 Product of the Day on Product Hunt. I started a habit of launching something on my birthday every year since 2019, and this was the one for 2021!


Demo | App
A “Pokédex” (catalog) for cross-chain bridges, providing transparent and real-time information for bridge users. Personally interivewed ~20 users and built POC during the Jump/Terra hacker house in April-May 2022 (Chicago). Sponsored by Jump Crypto, Hashed, Delphi, Galaxy Digital, Terraform Labs. Won 3rd place ($10k prize). Featured on Li.Fi’s Multichain Newsletter


Checkouts with crypto. Winner at HackMoney 2021.

Optimistic Payments

A shop that allows users to immediately obtain the token that the merchant prefers to receive in, even if they don’t have it just yet. By embedding the Uniswap Widget, the user can swap their existing tokens into the types supported by the merchant, which allows merchants to accept a wider range of customers. Winner of the Uniswap Grants bounty at ETHGlobal2022.



A wallet for USD stablecoins that earns interest.
Began during HackMoney, a month-long hackathon for decentralized finance. Highlighted by the Compound Protocol as one of their favorite projects at the hackathon.
It became a top 20 project on Pioneer (out of ~1k). Participated in IDEO’s Product Validation Day.
Prototyped in Brazilian Portuguese & English. Stack: Node/Express, Web3.js, Infura, Compound smart contracts & API, non-custodial wallets such as Portis/Fortmatic/Torus.

Trophy Case

Demo | Github | Showcase

Created at NFT Hack 2022: A dead simple way for developers to let users mint NFTs from in-app achievements, and a wallet for users to view all their achievements & discover others with similar interests.

Winner of “Best Use of Polygon” and IPFS prizes. Built with Grace Wang and Melanie Tam.

Yield-generating Gift Cards on Terra

Demo | Github
UST gift cards that earn yield on idle funds. Built during Miami Hack Week (Jan 2022) at the Spacecamp / Terra house.


Demo | Description

A wallet earning yield from money markets on Polygon (Ethereum scalability solution). Integrated with Aave, Zapper’s data API, and the Torus wallet for seamless/passwordless login using social accounts.

Built during the Scaling Ethereum hackathon. Winner of the Torus sponsor prize.


Demo | Description

Poolside is the source for new listings and trending assets in decentralized finance. Find and search through real-time data aggregated from The Graph, Uniswap, 1inch, Aavegotchi, Coinmarketcap and more.

Built during the MarketMake hackathon. Winner of prizes from The Graph and Aavegotchi.

DeFi Terminal

Real-time data, metrics, and news for decentralized finance. Aggregating data from The Graph, DeFi Pulse, and others.

Bitcoin Liquidity

Real-time visibility to the liquidity across different exchanges for Bitcoin. View on Github


Demo | App
I got curious about the Zapper (DeFi) API and wanted to experiment with reading wallet and other on-chain data and try “zapping” into liquidity pools. Prototyped a simple web app that reads wallet holdings on Ethereum, Polygon, and Binance Smart Chain. Also implemented UX for opening Sushiswap positions on Polygon.


Product Search for peer-to-peer marketplaces. Product Hunt | Demo
Winner on Pioneer. Presented in online demo day to audience of 400, including Laura Deming (Longevity Fund), Tyler Cowen (economist), Zach Sims (Codecademy) and Patrick McKenzie (Stripe).


Inspired by CryptoKitties, non-fungible tokens representing elements of clean energy. Winner during the first Pioneer tournament. Blog

Brex Insights Dashboard

Self-driven project while interviewing at Brex. I read every article I could find about Brex, dug into the company’s customer support pages and “reverse-engineered” the Brex Dashboard while incorporating some ideas for new features.

Compound Inspector

Used Compound.js to build a simple UI for querying account, cToken and market history data from Compound.


Real-time, remote “office hours” with verified medical experts. During COVID-19, we hear a lot of advice/news, but don’t always know what’s accurate. So SnapMed is here to democratize instant access to reliable information. Built with 3 teammates during a COVID-19 hackathon. Devpost


Classifying products with using fast.ai’s deep learning libraries.

Red Crypto Envelope

Conditional spending on Ethereum.

Ethereum Goals Tracker

A full-stack dApp for accountability. View on Github

Blockchain Whitepapers Written by Neural Networks

Trained an RNN on 160 whitepapers to generate some crypto-jargon from scratch.


Published on the Brex Engineering Blog, Hacker Noon (tech blog with with over 4M monthly readers) and BecomingHuman.ai (AI publication).

Awards / Honors

  • 2x Winner on Pioneer (Remote accelerator founded by former YC partner Daniel Gross, funded by Stripe and a16z)
  • Winner at HackMoney 2021, the world’s biggest DeFi hackathon to date. Among 16 finalist projects selected from 231 submissions (1100+ hackers)
  • Judge at HackMoney 2022, the largest event by ETHGlobal, a leading Ethereum community/hackathon.
  • Third place at Jump/Terra Hackathon, 2022
  • Prizewinner at NFT Hack (Polygon, IPFS), 2022
  • Prizewinner at Scaling Ethereum Hackathon, 2021
  • Prizewinner at MarketMake (DeFi) Hackathon, 2021
  • Kernel Batch 4 Fellow. Among ~20 finalist projects from the batch (from 200 submissions) selected to present to advisors, investors, and ecosystem partners
  • ZFellow
  • On Deck Fellow
  • Pear Builders Fellow
  • Speaker at Brex’s first tech talk for candidates in Brazil
  • Speaker at YC Women Engineers in Startups Series
  • Speaker at Brex + 500 Startups fireside chat
  • Former Brown University Women in Business President, member of Alumni Advisory Board
  • Founder of Lean In at Brown (started as freshman), invited to leadership summit w/ Sheryl Sandberg
  • Winner, HackForHer Prize at Microsoft Company-wide Hackathon 2015
  • Winner, Usability Prize at Hack@Brown 2014
  • Finalist at HackBrazil 2017
  • Finalist at Carnegie Mellon University Venture Challenge 2016
  • Square Code Camp for Women Engineers (20 selected among 500 applicants)
  • Google Grace Hopper Scholarship
  • Facebook Grace Hopper Scholarship
  • Google Anita Borg Academic Scholarship
  • Microsoft Academic Scholarship
  • Brown University International Scholarship Committee Grant
  • Internship offers at J.P. Morgan (Trading) with scholarship, Mastercard
  • Graded (High School in Brazil) Alumni Spotlight


Click on a thumbnail to see my attempts at playing the piano :)