Jason Lee
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Open to Summer 2027 SWE internships

Jason Lee

Software engineer: full-stack, backend, and mobile

I’m a Computer Science sophomore at the University of Rochester who ships real products: a study platform I co-founded and still run, a notarized macOS app, a Chrome extension with 70 users, and apps on the App Store. I’ve interned as a software engineer at Axionum and Experts Tribe, and I recently joined the BEAR Lab as an undergraduate researcher in human-computer interaction.

Résumé (PDF) See my projectsGitHub LinkedIn
Availability
Summer 2027 (May – Aug 2027)
Work authorization
U.S. Permanent Resident; no sponsorship needed
Education
B.S. Computer Science, expected May 2029, 3.93 GPA
Location
Rochester, NY; open to relocating
  • 4apps on the App StoreFlozable, Reparked, Clash of Screentime, Hangouter
  • 3software internshipsAxionum, Experts Tribe, Arim Airline
  • 70Chrome Web Store usersFlozable Focus, a Manifest V3 extension built solo
  • 26WaveNotch release buildsA signed, notarized macOS app built solo

Projects

Full-stack platform Co-founder Mar 2023 – Present

Flozable

A social study platform with a web app, a React Native app, and a real-time backend. I co-founded it in 2023, wrote most of the original backend, rewrote it alone in TypeScript, and rebuilt the product in 2026 with one collaborator. It had 160+ registered users by July 2025.

  • Wrote most of the original Node backend in a small team, then rewrote it alone as a ~10K-line TypeScript API with 19 Prisma models, Redis, Socket.IO, and WebRTC rooms on mediasoup, deployed on AWS EC2 with Ubuntu, Nginx, and PM2.
  • Built per-timezone leaderboards on Redis sorted sets, snapshotted to MySQL by an hourly cron as each timezone reaches midnight.
  • Co-built a 2026 rebuild on Next.js and Supabase, writing the Postgres functions that lock the timer row so two devices can’t save the same session twice.
  • TypeScript
  • Express
  • Redis
  • MySQL
  • Socket.IO
  • mediasoup
  • AWS EC2
  • Nginx
  • Next.js
  • Supabase
  • React Native

Read the case study →flozable.com API source App Store

The Flozable home page, with a focus timer preview under the headline “A little focus. A lot of possibility.”

Chrome extension Solo Sep 2026 – Oct 2026

Flozable Focus

A Manifest V3 extension with 70 users on the Chrome Web Store. It gathers deadlines from Canvas, Blackboard, and Gradescope into one dashboard and blocks distracting sites during a Flozable focus session.

  • Reads coursework from a student’s own signed-in session, and aborts imports if the account changes or pagination links leave the school’s origin.
  • Keeps focus sessions and reminders correct across service-worker restarts using persisted state, alarms, and an account-scoped reminder ledger.
  • Blocks sites with overlays that preserve the exact URL, and releases them on disconnect or revoked permissions.
  • JavaScript
  • TypeScript
  • React
  • Manifest V3
  • chrome.alarms
  • node:test

Read the case study →Chrome Web Store

The Flozable Focus settings page, with a choice between blocking distractions and allowing only study sites, a list of blocked sites, and a study timer.

macOS app Solo Apr 2026 – Jul 2026

WaveNotch

A free native macOS utility that turns the MacBook notch into an expandable dashboard for media controls, live lyrics, and 17 optional modules.

  • Wrote a media engine that controls Spotify, Apple Music, Safari, Chrome, Brave, and Edge using distributed notifications and AppleScript-injected JavaScript.
  • Built a lyrics pipeline that queries four providers in parallel, scores matches, discards stale results, and syncs LRC lines to playback.
  • Shipped 26 release builds through v2.15 with scripted signing and notarization and Sparkle delta updates.
  • Swift
  • SwiftUI
  • AppKit
  • AppleScript
  • Sparkle

Read the case study →wavenotch.com Source

WaveNotch expanded from the MacBook notch, showing album art, playback controls, a progress bar, and synced lyrics.

iOS app Solo Aug 2026

Reparked

An iOS app that chooses parking by the whole trip, ranking nearby options by drive time, walking time, and community-reported prices.

  • Merges SFMTA open data with MapKit results, removes duplicates by distance and name overlap, and labels every result’s data source.
  • Built an actor-based directions layer with a 3-request concurrency cap, in-flight deduplication, exponential backoff, a 30-minute cache, and a straight-line fallback.
  • Keeps raw price reports private with insert-only row-level security and a median-price RPC, with 26 passing XCTest cases.
  • Swift
  • SwiftUI
  • MapKit
  • ActivityKit
  • Supabase
  • XCTest

Read the case study →App Store

Reparked’s map near the Ferry Building in San Francisco, with numbered parking pins and a route card showing a 10-minute drive and 8-minute walk.
Reparked’s route details screen for a selected parking option.

iOS app Co-developed Aug 2026

Clash of Screentime

Head-to-head screen-time challenges for friends, built with one collaborator. Lower usage wins, and the loser’s sealed selfie goes only to the winner.

  • Wrote the Edge Function and Postgres ledger behind scoring: append-only events, row-locked writes, server-side timestamp validation, and range-count queries.
  • Built most of the monitor extension and screen-time service, which persist usage callbacks to App Group storage and sync them under a short execution window.
  • Penalty selfies stay sealed until a confirmed result. Ties never reveal, and only the winner gets a short-lived signed URL.
  • Swift
  • SwiftUI
  • DeviceActivity
  • Supabase
  • Postgres
  • Deno

Read the case study →App Store

The Clash of Screentime profile screen on iPhone, with account and safety settings.

Also built

  • Hangouter

    An iOS and iMessage app for finding a time that works for a group, built with one collaborator.

    SwiftUI, Messages extension, Supabase · Aug 2026 – Sep 2026
    App Store
  • Automated Blog

    An LLM pipeline that plans a 20–30-post series and writes each article through chained OpenAI API prompts.

    Node.js, Express, MySQL, OpenAI API · Feb 2023 – Jul 2023
    Source

Engineering by area

System design
Per-timezone leaderboards on Redis sorted sets with hourly snapshots to MySQL, a TypeScript rewrite of a live backend, and a move from separate servers to managed services. Flozable
Databases
A 19-model Prisma schema, a MariaDB-to-Prisma data migration, an append-only scoring ledger, and insert-only row-level security for community data. FlozableClashReparked
Auth and security
Redis-backed opaque sessions shared by REST and sockets, Apple and Google sign-in, insert-only price reports, and imports that fail closed when the account changes. FlozableReparkedFocus
Concurrency
A Swift actor with a request limiter and in-flight deduplication, row locks and revision checks in Postgres, and parallel lyric searches that discard stale results. ReparkedFlozableWaveNotch
Real-time
Socket.IO chat, WebRTC study rooms on a mediasoup SFU, and Live Activities that keep counting on the Lock Screen. FlozableReparked
Deployment
An API on AWS EC2 with Ubuntu, Nginx, and PM2, Vercel deploys, scripted macOS signing and notarization, and releases through the App Store and Chrome Web Store. FlozableWaveNotch
Platform constraints
Screen Time extensions that can’t read exact usage, service workers that Chrome can stop at any time, and playback data no public macOS API exposes. ClashFocusWaveNotch

Experience

May 2026 – Aug 2026

Software Engineering Intern

Axionum Remote

  • Developed frontend features and reusable components for Axionum’s Quant AI Terminal, a quantitative-finance research platform, presenting market indicators, historical prices, and research analytics, working directly with the founder.

Sep 2025 – Nov 2025

Software Engineering Intern (Mobile)

Experts Tribe Inc. Remote

  • Built React Native features for a cross-platform dating app on iOS and Android.

Jan 2025 – Apr 2025

Full-Stack Programmer

SVKS (Korean Language Program) Cupertino, CA

  • Built a school announcements and events site: Next.js front end, Express/MariaDB API, Redis-backed sessions, admin-only rich-text editor, and live view and like counters over Socket.IO.

Jun 2024 – Aug 2024

Web Development Intern

Arim Airline Seoul, South Korea

  • Modernized the corporate website with HTML, CSS, and JavaScript, improving responsive layout, page speed, and accessibility.

Research

Oct 2026 – Present

Undergraduate Researcher

BEAR Lab, University of Rochester

I’m an undergraduate researcher in Prof. Yukang Yan’s BEAR Lab (Behavioral Enhancement and Adaptive Reality) through CSC 395 Independent Research (3 credits), in human-computer interaction and mixed reality. The lab studies how to understand, predict, and enhance user behavior in mixed reality. I joined in October 2026, so I’ll add specifics here as the work develops.

Education

University of Rochester

Bachelor of Science, Computer Science Expected May 2029

Cumulative GPA, out of 4.00
3.93
Spring 2026
Dean’s List

Coursework

  • Data Structures & Algorithms
  • Artificial Intelligence
  • Computation & Formal Systems
  • Discrete Mathematics
  • Linear Algebra with Differential Equations
  • Statistical Methodology
  • Computer Organization (in progress)
  • Data Mining (in progress)
  • Computer Models & Limitations (in progress)

Course projects

relational-algebra engine in C; Dijkstra router in Java (custom heap, hash map); Bayes nets, MLP in Python.

Skills

Languages
TypeScript, JavaScript, Swift, SQL, Python, Java, C; basic C++
Backend & Data
Node.js, Express, Prisma, MySQL/MariaDB, PostgreSQL, Supabase, Redis, REST APIs, WebSockets (Socket.IO), WebRTC
Frontend & Mobile
React, Next.js, React Native, Expo, SwiftUI, iOS/macOS, Chrome Extensions (Manifest V3), Tailwind CSS
Tools & Infrastructure
Git/GitHub, AWS EC2, Ubuntu, Nginx, PM2, Vercel, Vitest, XCTest, LLM APIs (OpenAI, Together AI)

Writing: I wrote 47 programming tutorials in Korean and have republished them in English. Read the blog →