// Shopify development
Shopify developer in New York City
Eyal Gantz is a Shopify developer in New York City who builds custom themes from a blank canvas and the Laravel systems behind them. He works on Shopify and Shopify Plus stores, covering storefront code, catalog and inventory sync, and the business rules Shopify cannot enforce on its own.
Eyal Gantz is a Shopify and Shopify Plus developer based in New York City, and a co-founder of wilco.web, an official Shopify Plus Partner. He builds both halves of a store. On the storefront he writes custom Online Store 2.0 themes from a blank base in Liquid, Tailwind CSS, and Alpine.js, with no purchased template, as he did for the watch and jewelry house Moses NYC. Behind the storefront he builds the custom Laravel systems that commerce platforms handle poorly on their own: inventory reconciliation across locations and marketplaces, catalog sync through the Shopify GraphQL API, webhook-driven order routing, and integrations with warehouse, fulfillment, accounting, and email platforms. That hybrid runs live for the wholesale platform Goodbye Inventory and the retailer NYCMode. Storefront builds start around $10,000, builds with substantial back-office work typically run $25,000 to $50,000, and every project is quoted at a fixed price after a discovery call.
// scope
Storefront, and everything behind it
Most Shopify problems that look like design problems are operations problems wearing a storefront. Both sides get built here, which is why they line up.
- Custom themes. Online Store 2.0 in Liquid, Tailwind, and Alpine, built from a blank base around how the brand actually sells.
- Catalog and metafields. Product structure that merchandisers can run without a developer opening a code editor.
- Inventory truth. One source of truth pushed to Shopify and every marketplace, so overselling stops being a monthly event.
- Order operations. Routing orders to vendors, fulfillment, shipping, and accounting, with webhooks verified and retries handled.
- Custom business rules. Case packs, lot sizes, subscriptions, wholesale pricing, and personalization, enforced in a Laravel application beside the store.
- Discoverability and accessibility. Structured data, Core Web Vitals work, and a WCAG AA pass, as shipped on Moses NYC.
// straight answers
What kind of Shopify work do you do?
Two halves that most shops treat as separate jobs. The first is the storefront: custom Online Store 2.0 themes written in Liquid with Tailwind CSS and Alpine.js, built around how a specific brand actually sells rather than around a template's assumptions. The second is everything behind it, which is usually where the real problem lives: catalog synchronization, inventory truth across channels, order routing, vendor and fulfillment integrations, and the business rules Shopify cannot enforce alone. Eyal Gantz builds both, which means the storefront and the systems feeding it are designed together instead of negotiated between two vendors.
Do you build custom themes or start from a template?
Custom, from a blank Shopify base, when the brand needs to look like itself. For Moses NYC, a New York watch and fine-jewelry house selling privately at five and six figures, the theme was built with no purchased template: the design was translated directly into clean Liquid, Tailwind CSS v4, Alpine.js v3, and Swiper.js over Shopify metafields. Purchased themes are cheaper up front and carry a real cost later, because every customization fights code written for someone else's store. When a template genuinely fits the brief, saying so is the cheaper advice.
What does a Shopify build cost?
Shopify projects are quoted at a fixed price after a discovery call. As a working range: simpler storefront builds start around $10K, custom builds with real back-office work usually land between $25K and $50K, and multi-system platforms combining a storefront with a custom Laravel application run $50K to $100K and up. The variable is almost never the theme; it is how much operational logic sits behind the store, such as inventory reconciliation, marketplace syncing, subscription mechanics, or manufacturing and fulfillment routing.
Can Shopify handle custom business rules?
Not all of them, and pretending otherwise is how stores break. Shopify is excellent at checkout, payments, and merchandising, and it is a poor fit for deep operational logic. The practical answer is a hybrid: keep Shopify as the storefront and put the rules in a custom Laravel application beside it. Goodbye Inventory, a wholesale platform carrying more than 130 premium beauty brands, works exactly this way: a custom Shopify storefront for buying, with a Laravel application on Laravel Cloud owning inventory reconciliation, catalog sync through the Shopify GraphQL API, and webhook-driven order flow.
How do you keep inventory accurate across sales channels?
By picking one system as the source of truth and making everything else downstream of it. For NYCMode, a multi-location New York streetwear retailer, the warehouse system holds the truth and a custom Laravel application on AWS pushes inventory to Shopify the moment a number actually changes: location aware, HMAC verified, and writing only on real movement. The same catalog then fans out to marketplaces, shipping, accounting, and email, with a queue absorbing spikes. Overselling is not a Shopify limitation; it is what happens when several systems each believe they own the number.
Do you work on Shopify Plus?
Yes. Eyal Gantz works across Shopify and Shopify Plus, and co-founded wilco.web, an official Shopify Plus Partner. Plus mostly matters for higher-volume merchants who need checkout extensibility, scripts and functions, multiple storefronts, or stricter API limits; below that threshold, standard Shopify plus a custom backend usually delivers the same outcome for less money. Part of a discovery call is figuring out which of those two situations a business is genuinely in, rather than upselling a plan tier that solves a problem it does not have.
// case studies
Stores running on this model
Luxury Retail
Moses NYC
A private storefront for watches and fine jewelry.
Design-to-code lead
Read the case studyLive-Commerce Platform
Goodbye Inventory
Built for resellers who refuse to compromise.
Fractional CTO / Lead Engineer · ongoing
Read the case studyFractional CTO · E-commerce
Tres Colori
The storefront you see, and the order-ops machine behind it.
Fractional CTO · ~5 yrs
Read the case studyStore not keeping up with the business?
Tell me what you are building and roughly when. If it is a fit, you get one operator who covers the whole stack. If it is not, I will point you somewhere better.
New York, NY · remote-first across the US and Israel · English and Hebrew