Open to senior roles · Shopify Plus · Full-stack · AI

I build the commerce engines and the systems that scale them.

Senior Web Developer with 8+ years engineering high-converting Shopify Plus storefronts — and the lifecycle, SEO, data, and AI systems behind them — across a multi-brand DTC portfolio. I ship production code end to end and build the internal tools the wider team runs on.

0Years shipping DTC
0Live Shopify Plus brands
0Orders analyzed
The operating principle
Know the whole landscape. Reach for the right tool. Then solve the problem that actually pays.

Storefront, checkout, lifecycle, search, data, AI — I treat them as one system, not a stack of tickets. The point of knowing every layer is knowing which one to touch.

Some problems want a Shopify Function. Some want a migration. Some want a Postgres warehouse and a dashboard nobody asked for — until it changes the roadmap. The craft is picking correctly, then shipping it clean.

0
Cheef subscriber lift
0
HolistaPet sub lift
0
Orders in LTV study
0
DTC brands owned
0
Revenue lost in migrations
0
Years senior-level
What I actually do

Six disciplines,
one developer.

Most teams hire these as separate roles. I've been the person who connects them — so the storefront, the checkout, and the data all tell the same story.

🛍️

Shopify Plus, end to end

Online Store 2.0, Liquid, JSON templates, Metaobjects — architected and shipped to production, not handed off.

LiquidOS 2.0Metaobjects
🧩

Checkout & Functions

Stackable discounts, dynamic shipping thresholds, conditional promos — Shopify Functions built for Checkout Extensibility.

FunctionsCheckout Ext.Rust/JS
✉️

Lifecycle & retention

Engagement-tiered segmentation, deliverability-first sending, send-time optimization, LTV/cohort strategy.

KlaviyoFlowsCohorts
🔎

Technical SEO

Audits, redirect maps, structured data, cannibalization & content pruning — engineered around Google Core Updates.

GSCAhrefsSchema
🗄️

Internal tooling & SaaS

The operations platform the team runs on — audit pipelines, a Klaviyo revenue warehouse, content-brief & ads reporting.

Next.jsTypeScriptPostgres
🤖

AI implementation

Fluent across frontier and local models — wiring them into real workflows: content, audits, and decision support that ship.

ClaudeGPT-5.5+Local models
Selected work

A portfolio,
not a résumé line.

Three live DTC brands under one roof at Cheef Holdings — each a real Shopify Plus storefront I own end to end.

HolistaPet CBD Calming Soft Chews
Flagship brand · Shopify Plus

HolistaPet

The flagship storefront: retention engineering meets discovery UX — a guided dosage experience, tiered lifecycle flows, and a subscription model tuned so first orders become second and third ones.

RetentionKlaviyo flowsGuided UXTechnical SEO
+32%subscriber lift
Tieredlifecycle flows
Liveholistapet.com
Cheef Botanicals 100% vegan full spectrum CBD gummy cubes
Wellness DTC · Shopify Plus

Cheef Botanicals

Subscription UX rebuilt around churn-reduction logic, Checkout Extensibility promotions, and a CRO-tuned product experience — anchored by 100% vegan flagship products — shipped straight to production.

SubscriptionsCheckout Ext.CROCore Web Vitals
+44%subscriber lift
Customsubscription UX
Livecheefbotanicals.com
Hollyweed sign hoodie — LA streetwear
Lifestyle DTC · Shopify Plus

Hollyweed

A brand where product and streetwear culture share a storefront — high-velocity merchandising, promo mechanics via Functions, and an experience built to hold an iconic LA identity at scale.

MerchandisingFunctionsBrand systemsPerformance
0%revenue lost migrating
WooCommerce→Shopify Plus
Livehollyweed.com
Behind the storefronts

The tools the team runs on.

Not everything ships to a customer. Some of the highest-leverage work is the internal platform nobody outside the company will ever see.

Internal SaaS · Next.js · Postgres

Ecommerce Operations Platform

A single internal app that turned scattered spreadsheets into a system of record for the whole DTC portfolio.

  • SEO audit snapshots & drift tracking
  • Klaviyo revenue warehouse
  • Content-brief pipeline
  • Google Ads reporting
Migrations · WooCommerce → Shopify Plus

Zero-loss platform migrations

Full catalog, customer, order, subscription, and SEO-redirect migrations executed without revenue loss or ranking regression.

  • 301 redirect mapping at scale
  • Subscription & customer preservation
  • No organic ranking regression
  • Cutover with zero downtime
Growth systems · SEO & data

Organic-growth engine

Ranking-opportunity mapping across category taxonomies, plus a systematic content-refactoring framework that lifted organic visibility through Core Updates.

  • Ahrefs + GSC + SERP analysis
  • Cannibalization & pruning framework
  • Core-Update-resilient content ops
  • Measurable visibility lift
Freelance · Fintech tooling

Automated trading system

Beyond commerce: an automated equities/options trading tool with broker-API integration, built end to end for a private client.

  • Broker API integration
  • Strategy automation
  • Rate-limit & backoff discipline
  • Production reliability
The track record

Eight years, one trajectory.

MAY 2021 — PRESENT

Senior Web Developer

Cheef Holdings · Cheef Botanicals · HolistaPet · Hollyweed · Los Angeles, CA

Own end-to-end Shopify Plus development across three DTC brands — and build the data and lifecycle systems the wider team depends on.

  • Architected Shopify Functions for stackable discounts, dynamic shipping thresholds & conditional promotions on Checkout Extensibility
  • Led full WooCommerce → Shopify Plus migrations with zero revenue loss and no ranking regression
  • Built the internal ecommerce operations platform (Next.js, TypeScript, Postgres)
  • Ran a 100K+ order LTV cohort analysis that reshaped discount-acquisition strategy
  • Delivered +44% (Cheef) and +32% (HolistaPet) subscriber lift via custom subscription UX
JUN 2018 — MAY 2021

Freelance Web Developer

Upwork · Remote

Built Shopify Plus and WooCommerce storefronts end to end for DTC clients — CRO-focused UX, technical SEO, and headless builds.

  • Headless commerce with Hydrogen/Remix, React & GraphQL
  • Automated equities/options trading tooling with broker-API integration
MAR 2017 — JAN 2020

Technical Assistant

Sprouts Farmers Market · Los Angeles, CA

Developed React features and components; optimized API usage — request reduction, rate-limit handling, and exponential backoff.

2016 — 2018

Computer Science coursework

College of the Sequoias · Visalia, CA · Honor's Scholarship

Foundations in CS — recognized with the College of the Sequoias Honor's Scholarship.

 AI, in production

Not a prompt jockey.
An engineer who ships AI.

Model fluency across Claude (Opus/Sonnet/Fable), GPT-5.5+, GPT Image 2, and local open-source models — used inside real workflows with Cursor and VS Code, not demos.

The value isn't the model. It's knowing where an AI system belongs in a commerce operation — and where it doesn't.

01
Content & SEO acceleration

AI-assisted content-brief pipelines and refactoring at portfolio scale.

02
Audit & analysis copilots

Turning raw GSC / Ahrefs / order data into decisions the team can act on.

03
Tooling with judgement

Frontier & local models wired into internal apps — with cost governance and QA gates.

People who'd vouch

References on request.

"

The developer who quietly became the person the whole operation runs on.

DZ
Dareh ZadoorianCEO · Cheef Holdings
"

Bridges design and engineering — builds what the brand actually needs, cleanly.

CQ
Carly QuickGraphic Designer · Supergut
"

Deep across the whole Shopify and web stack — a genuine full-lifecycle engineer.

SD
Seydina DiopWeb Developer · Prime
Let's talk

Bring me the problem
you can't hire around.

Senior web / Shopify D2C lead roles, ecommerce engineering, SaaS & AI implementation. Based in Los Angeles — open to the right team, anywhere.

✉️
MatthewGhosid@gmail.comEMAIL
📱
(559) 936-1020PHONE
🌐
matthem.devPORTFOLIO