Tomasz Bujnowicz
Senior Shopify Plus Frontend Developer at DTAILS, Copenhagen
I build custom Shopify Plus storefronts for enterprise brands. For over a decade, I've been turning designs into production-ready e-commerce experiences — fast frontends, complex features, and stores that work for both merchants and their customers.
Currently at DTAILS, Scandinavia's top Shopify Plus agency. I work with brands that have outgrown off-the-shelf solutions — whether that's a custom theme from scratch, a feature no app can deliver, or making a store discoverable by AI shopping agents. What matters to me is the output: performant storefronts that merchants can manage without calling a developer every time.
What I Do
Custom Theme Development
Full custom Shopify themes built for performance and merchant flexibility. No page builders, no bloat — storefronts that score high on Core Web Vitals and are easy for merchants to configure.
Complex Feature Builds
Product configurators, dynamic filtering, advanced cart logic, B2B pricing, multi-variant selectors — the features that require deep platform knowledge and architectural thinking.
AI & Data Readiness
Most Shopify stores are invisible to AI agents because product data lives in template logic instead of structured fields. I restructure the data layer so AI can actually discover and recommend products.
Background
10+ years in e-commerce development, working with brands ranging from indie DTC startups to enterprise companies like Novo Nordisk, Lancome, Paco Rabanne, Autodesk, GSK, Casio, Jabra, and DSV. Based in Copenhagen, but the work has always been international — clients and teams across Denmark, the UK, the US, Canada, Australia, Switzerland, Germany, and beyond.
I use AI coding tools daily and write about how they change the way I build. I started because most Shopify content is either beginner-level tutorials or agency marketing — I wanted to share the kind of practical, technical content I wish I had when I was figuring things out.