IAN FLEMING Resume ↗

Ian Fleming

Shopify Plus Engineer | Fullstack, Integrations & International Storefronts

I'm a fullstack Shopify Plus engineer working across storefront relaunches, apps and checkout extensions, analytics, and A/B testing. My deepest work is in integration — making independent platforms behave as one, for the kind of problem where three services disagree on a price, or a discount works in the cart but breaks at checkout.

Before engineering, I spent years getting complex, multi-party processes right the first time in IP administration — the same instinct I bring to integration work, where small errors compound.

DE · IT · CH · FR · NL · ES

Six storefronts. One reconciled price.

Featured work

Cart Discount Coordination Engine

Three systems, one price — in the cart and at checkout.

Customers were seeing one price in the cart and a different one at checkout — a trust-eroding problem generating recurring support tickets. Built an event-driven coordination layer that detects the active discount mode across Shopify, Rebuy Smart Cart, and manual input, and calculates accurate prices in real time. 12+ months in production, zero critical incidents, pricing-discrepancy complaints eliminated entirely.

JavaScript · Event-Driven Architecture · Shopify Ajax Cart · Rebuy Smart Cart

Read the case study → Technical docs

FounderVoice AI

Generic AI output vs. a founder's actual voice, side by side.

Founder writing is chunked, embedded, and stored in Pinecone under that founder's namespace. A prompt is embedded the same way, matched against those chunks, and used to ground an OpenAI completion in their actual style — rendered next to the same prompt run through a generic model, for direct comparison.

Next.js · TypeScript · OpenAI API · Pinecone

Live demo GitHub Docs