Tomasz Bujnowicz
Senior Shopify Plus Developer at dtails
Background
I've spent my whole career building for the web — the last decade of it in e-commerce. Before e-commerce, I worked on digital projects for enterprise brands — Novo Nordisk, Lancome, Paco Rabanne, Autodesk, GSK, Casio, Jabra, DSV — which is where I learned to ship under real constraints: strict brand guidelines, multi-market rollouts, and teams spread across time zones.
When I moved into e-commerce, that enterprise discipline came with me. Today all my client work is at dtails, where I build Shopify Plus storefronts for retailers, brands and B2B manufacturers across Scandinavia — stores whose prices, stock and product data come from ERP and PIM systems, often rolled out across several countries. Before dtails, I worked independently with high-traffic stores like Meshki, Sabo Skirt and 1212 Gateway, and dozens of other Shopify Plus merchants across the US, Canada, the UK, Denmark, Sweden and Australia.
Based in Poland, working remotely with the dtails team across Scandinavia, France, Vietnam and beyond. Previously lived on La Palma in the Canary Islands — until the volcano erupted in 2021.
Modern tooling, including AI, is part of my everyday workflow, and I keep it up to date as the platform and the tools change. I write about what I learn, and the client work behind it, on the blog.
Outside of client work, I help maintain the site for the Charlie Cart Project — a nonprofit that teaches kids to cook through mobile kitchen carts in schools, libraries, and food banks across the US. Small contribution, great mission.
What I Do
Frontend Development
Custom Shopify Plus themes, sections and features, built to be fast, accessible and easy for merchants to manage.
Complex Feature Builds
Member and campaign pricing, product variants, cart rules and delivery estimates — features that go beyond what a theme offers out of the box.
Data-Driven Storefronts
Product, price and stock data from ERP and PIM systems, structured in Shopify so every page tells the customer the same thing.
Multi-Store, Markets & B2B
International rollouts across several country stores on one theme, and B2B wholesale alongside direct-to-consumer.
Selected Writing
- Shopify Member Pricing: Showing a Price Shopify Doesn't Know About Member and campaign prices from the ERP on every card, page and cart line, with a checkout that charges the same price.
- Shopify B2B Bulk-Ordering Grid Without an App A bulk-ordering grid for wholesale buyers, built inside the theme with Liquid, the Section Rendering API and a small web component.
- Shopify Opened B2B to Every Plan — Except the One Feature Grouped Catalogs Need Why Combined Listings staying Plus-only matters for grouped B2B catalogs, and what merchants run into in practice.