KEI HIROTA · 2026

Crafting new values from new technology.

Scroll to enter.

See projects
Scroll

01 — About

Who and how.

I'm a developer who treats interfaces as instruments — every line, every transition tuned until the surface disappears and only intent remains.

I work at the seam where motion, type, and 3D meet. The best interfaces don't feel built; they feel inevitable.

Currently building portfolios, design systems, and the occasional generative experiment. Open to collaboration that demands craftsmanship over speed.

02 — Roles

Currently working as.

CTO

Zequt Inc.

Run the technical side of my own company. Also handle the design and sales side.

Engineer

Space-tech scaleup

Semiconductor fab software, space content, event ops, tech research.

Founder & manager

SZK Server

Running a 500+ member community. Currently in its 4th year.

Advisor

MMJP

Advisor of the community focused on 3D map-making and game-making.

Student

Kogakuin University

CS major, currently in my 3rd year.

Certifications

Language

TOEIC

Score 830 · Jan 2026

Knowledge

天文宇宙検定

2級

Education

数理・データサイエンス・AI教育プログラム

リテラシーレベル

03 — Skills

Tools of the trade.

The stack I reach for — including everything that built this page itself. Hover any row to pause it.

Languages

(10)

CC#JavaJavaScriptTypeScriptPythonRubyGASMATLABBatch

Web & 3D

(12)

HTML5CSS3TailwindReactNext.jsjQueryThree.jsWebGLReact Three Fiberanime.jsMotionLenis

Backend & Data

(09)

Node.jsDiscord.js.NETGCPCloudflareMongoDBMySQLSQLiteSequelize

Creative & Tools

(08)

Adobe Creative CloudAdobe Premiere ProAviUtlGimpBlenderUnityFFmpegGitHub

04 — Projects

Selected work.

Selected work orbits the cat. Scroll to spin, click a card to flip.

  • 3D / HMI engineer

    Semiconductor Fab 3D Monitoring

    Built a Unity-based 3D dashboard that mirrors a semiconductor wafer fab in real time, letting operators monitor overhead transport from anywhere on site.

    • C#
    • Unity
    • WebSocket
    • IIoT
    • Semiconductor
  • Simulation & optimization engineer

    Semiconductor Fab OHT Routing

    Designed a Python simulation for overhead-hoist-transport routing inside a semiconductor wafer fab and benchmarked optimization heuristics for throughput.

    • Python
    • Simulation
    • Routing
    • Optimization
    • Semiconductor
  • Solo dev

    2026

    omniDev

    An experimental dev environment that lets you jump into any of your repositories with a single command, regardless of machine or location.

    • TypeScript
    • Node.js
    • CLI
  • Solo dev

    HidingGunPvP

    A novel take on hide-and-seek: hiders quietly farm points while staying out of sight, and can fight back to take down the seeker. Built as a custom 3D multiplayer game on the Krunker platform.

    • Krunker
    • JavaScript
    • 3D
    • Multiplayer
  • Solo dev

    2023

    KrunkerToWaveFront

    A bug-fixed remaster of a tool that converts Krunker map data into Wavefront OBJ meshes, opening the format up to standard 3D tooling.

    • JavaScript
    • 3D Geometry
    • File Conversion
  • Solo dev

    2026

    MyPortfolio

    The page you are scrolling. Built around a 3D cat orbit, kinetic typography, Lenis-driven smooth scroll, and a Next.js + R3F stack.

    • Next.js
    • TypeScript
    • React Three Fiber
    • anime.js
    • Lenis
    • Tailwind

05 — Contact

Let'sworktogether.

Pick an orbit — no email to harvest.

Get in
touch
GitHubYouTrustContact form· soon
progress: 0.000
velocity: 0.00