ST. LOUIS, MO

SOFTWARE ENGINEER · ARROWS UP

ZELUN HE.

Software engineer building reliable web platforms.At Arrows Up, I modernize client sites with SvelteKit. My background also spans full-stack AI products and published machine learning research.

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About me.

Pixel-art character representing Zelun He
Zelun HeSoftware engineer, Arrows UpSt. Louis, MO

I combine web engineering with experience in applied machine learning research.

I earned a B.S. in Computer Science with a Mathematics minor from Missouri State University in December 2025. My work spans client web platforms, clinical documentation software, and transformer research for time series forecasting.

As president of Missouri State’s ACM chapter, I organized workshops, technical talks, and career events, helping increase engagement by 50%.

Items collected

  • B.S. Computer Science, Mathematics minor, 2025
  • Springer ITNG 2026 publication
  • First place, 2025 CNAS Computer Science symposium

Technical skills

Languages

  • C++
  • C
  • Python
  • JavaScript
  • TypeScript
  • Kotlin

Web & backend

  • SvelteKit
  • React
  • Next.js
  • FastAPI
  • Tailwind CSS

Data & platforms

  • PostgreSQL
  • Prisma
  • Sanity CMS
  • Cloudflare Workers
  • Vercel
  • GitHub Actions

Machine learning

  • PyTorch
  • TensorFlow
  • Pandas

SOFTWARE ENGINEERING

SELECTED WORK.

Web platforms, product development, systems engineering, and machine learning research.

PROFESSIONAL EXPERIENCE

MAY 2026 – PRESENT

ARROWS UP · SOFTWARE ENGINEER

Modernizing client web platforms.

Rebuilt more than 21 client sites with SvelteKit, from interface and routing changes to CMS integration and SEO migrations.

  • Built reusable templates that cut delivery time by 50%, tracked in Jira.
  • Configured Sanity CMS, Cloudflare Workers, analytics, and GitHub Actions deployment pipelines.
21+CLIENT SITES
50%FASTER DELIVERY

SELECTED CLIENT WORK

Holcomb Tree Service homepage with a tree care headline and consultation form

ARROWS UP · CLIENT WEBSITE

Holcomb Tree Service

A service website for a Dallas tree care company, with clear navigation and a direct path to request a consultation.

INTERNSHIPS

TEAM EXPERIENCE
SOFTWARE ENGINEERING INTERN · JUN 2025 – MAY 2026
MyOasis homepage for its mental wellness platform

MYOASIS.AI

Led front-end work on the landing page and improved responsive layouts and React performance across devices.

  • React
  • TypeScript
  • Tailwind CSS
N-OF-1 AI · INTERN · JUN – AUG 2025
Scribsy dashboard with note creation and documentation overview

SCRIBSY

Architected a clinical documentation app for audio transcription, SOAP note generation, and secure note management.

  • FastAPI
  • Next.js
  • OpenAI APIs

Showing all 6 projects.

More projects on GitHub ↗

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