hey, i'm

justin abuyuan.

software engineering @ uwaterloo

projects.

a glimpse into the products i've crafted, the ideas i've pursued, and the problems i've solved along the way.

React Bacteria Simulator
2024
ReactTypeScriptTailwind
🦠 a React/TypeScript app created to simulate bacterial growth on a dynamically resizable grid that can simulate up to 10,000+ bacterial cells replicating.
Black Magic II: Phantom's Causatum
2019
LuaBlenderRoblox Studio
⚔️ a ROBLOX fighting game i developed alongside an indie development studio. At its peak activity, it had up to 2,000+ active players and had a community of over 20,000+

experience.

a collection of the teams i've built with, the systems i've worked on, and the lessons i've carried forward.

check out my resume

1. Carta
  jan 2026 — aug 2026
  💻 software engineering intern
  📊 building the reporting infrastructure behind cap tables and financial reports for startups, investors, and law firms
  
  highlights:
  - migrated a top-5 report on the platform to a new spring boot reporting service, cutting generation time by 33%
  - shipped a feature requested in 400+ support tickets, from protobuf/grpc contracts to the react ui
  - orchestrated environment deployments with docker, jenkins, and kubernetes
1. Caution Tape Robotics
  jul 2025 — sep 2025
  🦾 freelance work
  💻 developing internal full-stack applications/tools
  
  highlights:
  - built a full-stack inventory tracker with PostgreSQL, Next.js, and Tailwind to automate inventory management
1. Flynn Group of Companies
  may 2025 — aug 2025
  💻 software engineering intern
  🏗️ innovating and optimizing processes in the construction industry through software solutions
  
  highlights:
  - developed an internal app used by over 3,000 employees
  - enabled real-time performance monitoring via New Relic logging
  - supported canary releases via LaunchDarkly
1. Jitto
  jul 2024 — jun 2025
  💻 full stack engineering intern
  🍅 innovating and optimizing processes in the produce industry through software solutions
  
  highlights:
  - built orders history page, cutting cloud costs 13%
  - scaled backend with AWS Lambda, DynamoDB, and more
  - refactored portal with Tailwind, file size ↓ 30%, load time ↑ 20%
1. Google Developer's Student Clubs
  oct 2023 — may 2024
  💼 technical co-lead
  👨‍💻 guiding and leading fellow computer science students to success

more.

github activity, tools i use, and what i’m up to now.

fun stats 🎯

3
hackathons: 100+
redbulls: plat
valorant rank

fpgas
obsessed w/: 101k
osu! rank: 28.6%
headshot %

let’s talk.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

hey, i'm

justin abuyuan.

software engineering @ uwaterloo

projects.

a glimpse into the products i've crafted, the ideas i've pursued, and the problems i've solved along the way.

React Bacteria Simulator
2024
ReactTypeScriptTailwind
🦠 a React/TypeScript app created to simulate bacterial growth on a dynamically resizable grid that can simulate up to 10,000+ bacterial cells replicating.
Black Magic II: Phantom's Causatum
2019
LuaBlenderRoblox Studio
⚔️ a ROBLOX fighting game i developed alongside an indie development studio. At its peak activity, it had up to 2,000+ active players and had a community of over 20,000+

experience.

a collection of the teams i've built with, the systems i've worked on, and the lessons i've carried forward.

check out my resume

1. Carta
  jan 2026 — aug 2026
  💻 software engineering intern
  📊 building the reporting infrastructure behind cap tables and financial reports for startups, investors, and law firms
  
  highlights:
  - migrated a top-5 report on the platform to a new spring boot reporting service, cutting generation time by 33%
  - shipped a feature requested in 400+ support tickets, from protobuf/grpc contracts to the react ui
  - orchestrated environment deployments with docker, jenkins, and kubernetes
1. Caution Tape Robotics
  jul 2025 — sep 2025
  🦾 freelance work
  💻 developing internal full-stack applications/tools
  
  highlights:
  - built a full-stack inventory tracker with PostgreSQL, Next.js, and Tailwind to automate inventory management
1. Flynn Group of Companies
  may 2025 — aug 2025
  💻 software engineering intern
  🏗️ innovating and optimizing processes in the construction industry through software solutions
  
  highlights:
  - developed an internal app used by over 3,000 employees
  - enabled real-time performance monitoring via New Relic logging
  - supported canary releases via LaunchDarkly
1. Jitto
  jul 2024 — jun 2025
  💻 full stack engineering intern
  🍅 innovating and optimizing processes in the produce industry through software solutions
  
  highlights:
  - built orders history page, cutting cloud costs 13%
  - scaled backend with AWS Lambda, DynamoDB, and more
  - refactored portal with Tailwind, file size ↓ 30%, load time ↑ 20%
1. Google Developer's Student Clubs
  oct 2023 — may 2024
  💼 technical co-lead
  👨‍💻 guiding and leading fellow computer science students to success

more.

github activity, tools i use, and what i’m up to now.

fun stats 🎯

3
hackathons: 100+
redbulls: plat
valorant rank

fpgas
obsessed w/: 101k
osu! rank: 28.6%
headshot %

let’s talk.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Carta

Caution Tape Robotics

Flynn Group of Companies

Jitto

Google Developer's Student Clubs

fun stats 🎯

let’s talk.

jj

Carta

Caution Tape Robotics

Flynn Group of Companies

Jitto

Google Developer's Student Clubs

fun stats 🎯

let’s talk.

jj

j

j