01Proof of work
Last 12 months
Contributions by year
02Selected work
All inside a live subscription business, with real customers on the other end.
The Shopify theme platform for a subscription coffee business. Sections built straight from Figma, trial and checkout flows, collection and product pages, experiments, analytics events. Owned through a re-platform and several hundred iterations.
700+PRs
The subscription service under the storefront: plans, cadence, skips and swaps, and the discount and pricing rules that decide what a bag costs. Node and TypeScript on Postgres, with logic that has to agree with the ledger every time.
150PRs
A Rails dashboard for partner roasters: batches, fulfillment, labels, the unglamorous work that cannot be almost right. When a batch is stuck, somebody's coffee is late, so the screen and the database have to agree.
38PRs
The recommender that ranks coffees against a taste profile, treated as a ranking problem with real feedback loops. Alongside it, the internal dashboards the team runs the business from.
37PRs
A remote Model Context Protocol server on Cloudflare Workers that gives Claude a fenced set of tools for Shopify theme development and the rest of the company stack. Read paths are wide, write paths are gated.
35PRs this year
Origin: a LangGraph agent that answers employee questions across Notion, GitHub, Slack, Shortcut, PostHog, Klaviyo, Shopify, Snowflake and Figma. Read-only by design, backed by retrieval over documents people already wrote.
9systems
That is the shop.
Here is the path that led to it.
03Trajectory
Software Engineer, full-stack
Subscription coffee marketplace. Storefront, subscriptions and pricing, roaster operations, the recommender, a remote MCP server and a read-only company agent.
7,920contributions
Front-End Engineer
The country's leading pet supply distributor, and three storefronts on top of its warehouses: PetFlow.com with Auto-Ship, Endless Aisles for independent pet shops, and the B2B ordering site retailers buy wholesale through.
408contributions, now private
Web Developer
A small product and software studio building websites, web apps and custom software for clients. First professional code, first deadlines with a client on the other side.
—predates this account
Year by year
Bars are contribution counts on this GitHub account, which opens in 2019
Two years at a New York product studio shipping client websites and web apps.
Three storefronts over one warehouse: PetFlow.com, Endless Aisles and the wholesale ordering site. The work GitHub account opens in April.
PetFlow's consumer store and Auto-Ship flows, Endless Aisles' retailer storefronts and kiosks, and the wholesale site, while pet retail moved online fast.
Two and a half years at Phillips, then a subscription coffee marketplace in November. Storefront engineer first, on-call for a page that makes money.
Design-to-code became the job. Hundreds of storefront changes and a review habit that has stayed above one review per PR since.
Moved the storefront from a custom Node frontend onto Shopify Liquid and TypeScript. First commits into the subscription service and the roaster dashboard.
Subscriptions, discounts and pricing, roaster operations, internal dashboards. The year the work became the systems, not just the pages.
Ranking coffees to people, hardening the subscription engine, keeping the storefront fast while the catalog grew.
A remote MCP server on Cloudflare Workers, a read-only LangGraph agent across nine company systems, retrieval over internal docs. Busiest year on record, and it is September.
04How I work
Durable beats clever.
I look for more than one way through, then pick the one that still works next year. Clever is cheap. Durable is the filter.
The mock is not the page.
A frame that holds on a phone, with real copy and a real empty state, is the work. If it only looks right in Figma, it is not shipped.
Write less. Review harder.
Small diffs. Named failures. I would rather catch the silent one in review than explain it in production. 1,957 reviews say I mean it.
05Contact
Looking for a team that cares whether the surface and the system agree. If that is your problem, write me.
vince.liu38@gmail.com