Hi, I’m Sam.
I build practical
software.
From an idea to something you can use.
I work across AI, backend systems, and the
infrastructure that brings them together.
Take the short route.
A little guide to my projects, stack, and contact details.
Answers from this portfolio’s content. No AI, no guesswork.
Ideas, made tangible.
A collection
of working ideas.
Web applications, AI experiments, and tools that turn a specific problem into something useful.
Curious by default.
Practical by design.
I’m Zhiyuan Wang — Sam for short. I build software across AI, backend, and infrastructure.
Connecting the pieces.
My projects range from a full-stack storefront to local speech transcription and housing-price modelling. I enjoy working where an interface, a model, and a reliable system need to come together.
This is a collection of that work: experiments made concrete, code you can explore, and applications you can try.
See what I’m building ↗Tools for the job.
Python · Java · Node.js
TypeScript · React · Next.js
PyTorch · TensorFlow
FastAPI · PostgreSQL · Prisma
Linux · Nginx
Git · Vercel
Good software starts with a conversation.
Get in touch ↗Have something
in mind?
A question about a project, an interesting idea, or a simple hello — my inbox is open.