Casey Hsu's Portfolio full-stack developer · storefronts, themes & migrations.

Three years scoping, building, and shipping production work end-to-end across Shopify, HubSpot, and WordPress — sole developer on every engagement, from first commit to live site.

See the work→ Resume.pdf↓ Hire me⌘K

casey@arch:~ — bash 80×24

~$ whoami

casey · toronto, on · utc-04

~$ status --availability

available · full-time + contract

~$ stack --primary

shopify · hubspot · wordpress · ts

~/portrait.jpg 1280×1600

NAMECasey Hsu

ROLEFull-Stack JS Developer

SINCE2023

Updated May 2026

Shipping with ·Shopify ·HubSpot ·Contentful ·WordPress ·Next.js ·Astro ·Node.js ·TypeScript

01 / // now › This is what i'm currently working on

Currently building.

~/jobhunt $ jobhunt scan building · d.42

Job Hunt AI Buddy — local-first CLI for the GTA

Greenhouse, Lever, Ashby, SmartRecruiters, Workday, Workable, Recruitee, Job Bank Canada, and Adzuna CA — scoped to GTA + 100km and Remote-Canada. Local Ollama scores fit, drafts resumes and cover letters, answers free-form form questions under structural honesty rules, and auto-discovers new ATS slugs after each scan. No LinkedIn scraping, no bot submissions, no stored employer credentials.

Pulls public ATS APIs, scores against a verified resume, drafts tailored docs, and assists form autofill. You submit every application yourself.

→ github.com/SimBuds/Jobhunt

PythonuvOllamaSQLitePlaywrightATS

~/seo-llm $ claude /seo-gen designing · d.30

LLM-SEO — local-model content pipeline with Google safeguards

Claude Code orchestrates planning and critique while llama-custom drafts prose and granite-custom emits Article JSON-LD + meta + Open Graph. App-layer prompt overlay (system / formatting / personality / google-rules) ships via Git without rebuilding models. Lint pass enforces banned-word grep, heading hierarchy, meta length, and schema validation; RSS notifications from Google Search Central trigger volatile-rule reviews instead of a doomed quarterly cadence.

Hybrid Claude Code + local-model SEO stack. Briefs in, full SEO package out, with lint guards tuned against 2026 core-update drift.

→ github.com/SimBuds/SEO-LLM

Claude CodeOllamallama-customgranite-customE-E-A-TJSON-LD

~/auto-agent $ docker compose up -d deploying · d.18

Auto-Agent — Hermes + OpenClaw orchestration stack

Compose stack sized for 16GB unified memory: Hermes (~4G) plans against the Claude API, Postgres holds durable agent memory, Redis caches hot context, and a FastAPI capability server exposes AppleScript, iMessage, and system-control endpoints. Optional OpenClaw bridge wires Telegram and Discord in when needed.

Hermes Agent + Claude API inference, Postgres/Redis memory, and a FastAPI capability server for Telegram, and Discord automation.

→ github.com/SimBuds/Auto-Agent

DockerFastAPIHermesPostgresRedis

~/ai $ ./build-qwen tuning · d.10

AI Context Stack — three custom Ollama models

Three project-agnostic siblings assembled from a shared prompts/ + memory/ + knowledge/ tree into generated system.txt and Modelfile pairs. qwen-custom is the terse technical daily driver (q8_0 KV cache, flash attention, 16k context, thinking mode as an explicit opt-in); granite-custom and llama-custom run hotter for structured output and long-form prose. Project-specific overlays (e.g. SEO rules) inject at request time instead of being baked in.

qwen-custom, granite-custom, and llama-custom built from one layered Markdown stack. Edit prompts, run one script, ship a model.

→ github.com/SimBuds/Ollama-LLM-Prompts

Ollamaqwen3.5:9bgranite4.1:8bllama3.1:8bModelfile

02 / // client work › Production work — e-commerce storefronts, CMS themes

Selected client work.

// 14 pages · 200+ SKUs · 2yr engagement

$stones.configure({ band, size, gem })

Live site available on request

Custom Jewelry Brand (Atelier Dacko) · Sole developer · scoped to ship

Shopify ring builder for a 14-page custom storefront

Migrated a WordPress portfolio into a 14+ page Shopify storefront and built a custom ring builder for stone, band, and size configuration. Now supports 200+ SKUs and 500+ monthly visitors, with a 2+ year ongoing engagement.

ShopifyLiquidStripeWordPressSEO

Live site available on request request access →

Coming soon

// 8 pages · 90+ PageSpeed · -30% load time

$hubl.module("hero", { variants: 4 })

Live site available on request

AI Agency Client (NDA) · Legacy-to-custom migration

Custom HubSpot theme with reusable HubL modules

Migrated a legacy HubSpot site into a custom 8-page theme with full CRM integration — content mapping, page restructuring, and reusable HubL modules. Image optimization, lazy loading, and caching lifted PageSpeed past 90 and cut load time 30%. GitHub Actions CI runs automated linting before production deploys.

HubSpotHubLCRMGitHub ActionsJavaScript

Live site available on request request access →

// 400+ SKUs migrated · catalog standardized

$catalog.migrate(legacy.json).normalize()

Live site available on request

Vintage Gaming Retailer (NDA) · Components · data migration · SEO

Shopify components & 400+ item catalog migration

Built custom page layouts and product display modules for a 400+ item vintage gaming catalog. Bulk JSON migrations restructured the full catalog — cutting manual data entry and eliminating duplicate SKU errors. Technical SEO audits and security hardening improved search visibility across target keywords.

ShopifyLiquidJSONSEOSecurity

Live site available on request request access →

03 / // about › 3 years in code · 9 years sous chef · ships quality

~/about.jpg portrait/02

Three years in code, nine years in kitchens. The discipline carries over.

Most of my work today is in Shopify, HubSpot CMS, and WordPress — with React/Next.js frontends and Node.js backends. The day-to-day is JavaScript, TypeScript, Docker, and modern AI-assisted workflows.

Before tech, I spent nine years leading culinary teams. It taught me how to stay calm under pressure, communicate clearly, and deliver on deadlines. I'm a George Brown Computer Programming and Analysis honours grad and a Contentful Certified Professional.

Currently open to full-time roles in the Greater Toronto Area, including hybrid and on-site opportunities.

3+ yrs

shipping production code

20+

page custom Shopify themes

400+

SKUs migrated · normalized

90+

Lighthouse · -30% TTI

04 / // stack › The tools I reach for daily

Daily drivers.

01 / Core

JavaScript ES6+
TypeScript Typed APIs
Python Scripts · tooling
React UI · hooks

02 / CMS & E-Commerce

Shopify Liquid · custom themes
HubSpot HubL · CRM integration
WordPress Elementor · migrations
Contentful Certified Professional

03 / Data & DevOps

PostgreSQL · MySQL Relational
MongoDB Documents
Docker Containers
Jest · Playwright Unit · E2E tests

04 / AI & Tooling

Ollama KV cache · flash attn
Claude Code CLI Daily driver
OpenAI Codex Inline assist
MCP Servers Model Context Protocol

05 / Familiar

Java · Spring Boot Microservices
Headless Arch Composable CMS
Figma Handoff · design
Agile / Scrum Process

05 / // contact › Available for full-time roles and contract work

Let's build something worth shipping.

Have a project in mind, a role to fill, or just want to say hello? I'm always open to new opportunities and interesting conversations.

✦ EMAIL casey-hsu@outlook.com ↗ GH GITHUB github.com/simbuds ↗ in LINKEDIN linkedin.com/in/casey-hsu ↗ ◐ TZ UTC-04 · Toronto, ON ↗