AboutKoimsurai · Bonsai of code

Take the complex,
and make it feel effortless.

I'm Koimsurai, born in 2004 in Yunlin, Taiwan. Currently a 4th-year IM student at National Taiwan University of Science and Technology (NTUST), interning as a software engineer at MSI — where I'm effectively responsible for frontend framework standards and underlying architecture design within my team.

I have prior experience with C++, Python, Golang and app development. At MSI I led the adoption of a modern lightweight Tauri + Rust architecture to replace bulky legacy systems; built cross-environment CI/CD pipelines from scratch; and shipped an AI deployment architecture for cloud–edge hybrid workloads. My stack spans frontend UI/UX down to low-level memory management, plus debugging cross-platform builds and security issues.

Outside work I'm a HomeLab enthusiast — maintaining a 24/7 server cluster and building a personal Web NAS OS (Next.js + Rust) and my own AI assistant from scratch.

I served as president of NTUST's IM student council and as a programming instructor. I rely on Notion and GitHub to organize complex info, and Figma for UI design. I believe great software needs both solid foundations and an effortless feel across products and users. Hoping to keep making impact in system architecture and AI integration.

Stack10 domains · 90 technologies
90technologies

From frontend to deploy, from design to teaching.
Every layer, I can wire it myself.

FrontendFrontend
BackendBackend
MobileMobile
DevOpsDevOps
DesignDesign
DataData
NetworkNetwork
ProductivityProductivity
AI ToolsAI Tools
TeachingTeaching
Experience3 roles

MSI (Micro-Star International)

Software Engineer
MonorepoTurborepoTypeScriptASP.NETPythonGitLab CI/CD
Frontend Architecture & Standardization
  • Led the Monorepo migration: used Turborepo to consolidate multiple internal frontend projects, solving cross-project code sharing and versioning pain points
  • Established strict ESLint / Prettier / TypeScript rules, raising team code quality
  • Packaged shared UI libraries and utility libraries for reuse by other teams (e.g. IT Team)
  • Wrote standardized dev docs and READMEs to help teammates onboard
Backend Development & Maintenance
  • Maintained ASP.NET (C#) and legacy Web APIs — fixed .NET Framework compatibility and .web.config issues
  • Handled MS SQL permissions and debugged Stored Procedures
  • Wrote Python scrapers and automation scripts for data collection and batch processing
DevOps & Process Optimization
  • Built and maintained GitLab CI/CD pipelines, ensuring smooth automated builds and deploys for the monorepo
  • Comfortable with Git Flow, helping teammates resolve conflicts and reviewing merge requests
Cross-Team Collaboration
  • Worked closely with AI Team / IT Team as the frontend tech contact integrating AI models into web interfaces
  • Demoed to non-technical stakeholders, translating complex architecture into concrete value

Ape Programming School

Reserve Instructor
PythonScratchMCEApp Inventor
  • Teach programming to elementary and junior-high students; small-class MCE and Python focused
  • App Inventor one-on-one competition prep — taught at students' homes

Gao-Wei Math Cram School

IT Assistant & Planning
KotlinAndroidPremiere Pro
  • Built and maintained an Android app for the cram school in production
  • Handled various IT tasks assigned by management
  • Edited dozens of <10-min promo videos with thumbnails
Communities3 club roles
  • Freshman Camp · Vice Activities Lead
  • Welcome Tea · Chief Organizer, MC
  • Thirteen-Dept Christmas Party · Co-Lead
  • Department Forum · Chief Organizer, MC
  • Guitar Welcome Show · Chief Organizer
  • Mid-Term Concert · Photographer
  • Folk Night · Co-Lead, Photographer
  • Seven-School Joint Exhibition · Co-organizer
  • Alumni Gathering · Set Design, MC
  • End-of-Term Show · PR Lead, Photo Lead
  • New Semester Show · Co-Lead, MC
  • Golden String Awards · PR & Recruitment Lead
  • Workshop teaching & planning
  • Outdoor shoot leader
JourneyMy Journey

Born

Aquarius · Blood type A

Born in 2004. Rational programming logic and emotional aesthetic design — two seemingly contradictory traits that help me balance user experience and code efficiency when building frontend interfaces and planning system architecture.

Full-StackPhotographyDesignFull-Stack EngineerPhotographyDesign

First Step into Work

Japanese restaurant — front & back of house

High school: my first job was as front-and-back-of-house at a Japanese restaurant. The Japanese craftsperson's strict standards for 'prep discipline' and 'service etiquette' deeply shaped my work ethic. Even in fast, high-pressure environments, I learned to stay calm, follow SOP, and handle complex tasks — building strong time management and stress resilience.

ResilienceWork ethicTime management

Early College

Cross-domain exploration & leadership

Once in college I actively expanded my tech stack (Python, Golang, Java) and pushed myself out of my comfort zone to serve as IM student-council president and as secretary of the guitar club. Beyond a heavy course load, I had to coordinate people and resources across these clubs — sharpening multitasking, learning to lead teams and communicate across groups. These soft skills became the foundation for cross-team collaboration in my later jobs.

PythonGolangJavaLeadershipTeamwork

Capstone Project

EV charging platform + gamified ESG

Goal: solve the pain of EV drivers needing multiple apps — by building an aggregator across major charging-station platforms. Backend used Redis caching to optimize map performance; FastAPI parsed in-car CAN logs to convert driving trips into carbon-reduction points; the Flutter app pioneered a "horizontal-scroll gamified" UI to convey ESG sustainability concepts. We also had full infra: Docker containers, Nginx reverse proxy, Cloudflare protection, hMailServer email. Plus a Discord Bot for ChatOps — teammates could open issues, monitor server status, and tail logs via Discord commands.

RedisFastAPIFlutterDockerNginxDiscord Bot

Personal Projects & Continuous Growth

Staying hungry online

Independently built a 3D interactive personal site using React + Three.js, presenting a UX different from typical flat pages. Unsatisfied with existing tools, I taught myself UI/UX to improve my projects; lately diving into Rust and Home Lab (NAS), exploring lower-level systems.

ReactThree.jsRustNASUI/UX

Keep Exploring

Building stable, efficient, user-fit services

Looking ahead, I want my full-stack skills and architectural experience to ship not just working code, but solid, efficient services that fit real users. Working across product types and users, from frontend to backend, from design to deploy, growing constantly.

Full-StackArchitectureGrowth

To be continued...