> STEREO OS v1.0 — booting…
> loading channel A ......... CODE
> loading channel B ......... SOUND
> calibrating crossfader ... OK
> arming oscilloscope ...... OK
> welcome, matthew.
MATTNG.OS
CH: CODE · MIX 18%
San Francisco, CA
こんにちわ、世界  ·  San Francisco, CA

MATTHEWNG

Founding Engineerby day/Trance DJ + Producerby night

One person, two channels. Drag the crossfader at the bottom to repaint the whole page between the engineer and the producer. Hit play and the site synthesizes its own trance to move the visuals — or scroll down for the real mixes.

no audio files · every note is generated on the fly
A/01

The arrangement

// career.session

I build interfaces the way I build a set — obsessed with feel and the drop. Motion, type and timing are just automation lanes. I ride the faders until it hits.

UC Berkeleyex-LinkedIn · 11 yrsSwift / iOSResponsive web
2025 — NOW
Founding Engineer

Tailor AI

Building an AI company from zero. Shipped a new homepage, a Slack agent and an infra stack in a single week — orchestrating fleets of Claude Code agents across parallel workstreams.

2013 — 2025
Senior Web Developer → Staff Software Engineer

LinkedIn

Eleven years, three titles. Contacts redesign, full-stack spam detection, and the Groups iOS app — one of LinkedIn's first apps written entirely in Swift. Responsive web, end to end.

2012 — 2013
Missionary

Christ Bible Institute · Nagoya

Two years in Japan. Built shingakko.net, roasted coffee, and picked up the 日本語 that still opens this page.

2009 — 2012
Independent Musician

Collab High Five!

Where the signal starts. Producing electronic music — trance, house, progressive, breakbeat — years before the first commit.

A/02

The rack

// stack.patch
LanguagesTypeScript · Swift
FrameworkReact · Next.js
CraftResponsive web
PlatformiOS · early Swift
NowAI agents · Claude Code
Wildcard日本語 / 音楽
B/01

The night set

// aka Kumatto · Mattengee

I love music. Whether making it or listening to it.
I DJ long-form trance sessions as Kumatto ʕ·ᴥ·ʔ and produce & remix as Mattengee / collabhighfive — the euphoric, uplifting, Anjunabeats end of the spectrum, resolving in A minor.

TranceProgressiveHouseBreakbeatAnjunabeats
Mixcloud — Kumatto · 17 DJ sets
SoundCloud — Mattengee · productions

↔ tip: while a mix plays, the crossfader rides its volume — slide toward CODE to duck it, toward SOUND to bring it up.

17
DJ mixes
30
Tracks
138
BPM
Reverb tails

▸ deep cut — Mat Zo — Back In Time (Mattengee Remix) · all mixes on Mixcloud ↗ · tracks on SoundCloud ↗

PLAY THE OSCILLOSCOPENot my music — a trance loop synthesized live so the background can react to it.
OUT

Patch in

Route a signal wherever you like — a role, a remix, a collab, or just a hello in any language you speak.

◄ Codecrossfade · the lookSound ►