Serhii NezhyhaiShopify developer

Work

Six projects for one Shopify store, strongest first. Each names what I actually did, and carries what it is: the scope, the stack, and a measurement where there's one to give.

Filter by type of work

Back-office integration app

One Gadget app tying a Shopify store to Ukrainian banking, fiscal receipts, a marketplace, a courier and its suppliers.

Informatica

Admin UI extensions
10
  • Custom app
  • Integration & migration

Informatica storefront

A customised Dawn theme in Liquid for a large Ukrainian electronics catalogue, with a Lighthouse harness that decides what ships.

Informatica

Mobile Lighthouse, live
71 / 83 / 88
  • Theme 2.0
  • Performance

Storefront AI assistant

A shopper-facing chat agent on Claude and MCP — catalogue search, cart building and order status, in Ukrainian and Russian.

Informatica

Model
Claude Haiku 4.5
  • AI / agentic

Dynamic discounts

A public Shopify app that makes Google's automated discounts actually apply at checkout, as a Shopify Function.

Informatica · published on the Shopify App Store

Distribution
Shopify App Store (public)
  • Functions
  • Custom app

Supplier price sync

A desktop app that pulls prices and stock from eight suppliers, re-prices them, and bulk-updates the store and its marketplace feeds.

Informatica

Supplier sources
8
  • Integration & migration

Hydrogen storefront

The store's previous headless build on Hydrogen and Oxygen — retired in 2025 when it moved back to a Liquid theme.

Informatica

Direction
Hydrogen / Oxygen → Dawn / Liquid
  • Headless

Before Shopify

I came from e-commerce marketing. A 12-month fullstack program at GoIT, then a remote React and Next.js internship at SoftRyzen — commercial marketing sites with Strapi and Sanity as headless CMS, and team lead on one build.