Shopify services
Practical work that makes your store faster, clearer, and easier to buy from.
Theme customization
Custom sections, landing pages, product page improvements, cart drawer upgrades, bundles/upsells, and clean UI that matches your brand.
Performance (Core Web Vitals)
Fix LCP/CLS/INP issues, reduce render-blocking scripts, optimize images, and improve real storefront speed — not just Lighthouse scores.
Integrations & automations
ERP/accounting, shipping, email marketing, inventory workflows, and custom data sync — built reliably with APIs and webhooks.
Custom Shopify features
When apps are too heavy or too limited, I build lightweight custom features directly in Liquid/JS or via a small service.
Mobile-first UX
Better navigation, clearer product information, fewer checkout distractions, and higher conversion on mobile shoppers.
Reliability & safety
Versioned changes, safe deployments, theme backups, and testing-friendly workflow — so improvements don’t break your store.
Who this is for
If you recognize any of these, we’ll work well together.
- Your store is live, but performance is poor (slow product page, bad LCP/CLS, heavy scripts).
- You need custom features (engraving/customization, bundles, dynamic pricing, shipping logic, B2B details).
- You want fewer apps and more control — without sacrificing UX and speed.
- You need reliable integrations (ERP/accounting/shipping) and automated order workflows.
- You want measurable improvements: faster checkout, higher conversion, fewer support tickets.
Locations served
Based in Slovenia — working with EU clients remotely.
I work with Shopify merchants in Slovenia and across the EU (Austria, Germany, Italy, Croatia, and more). Projects are typically remote, with clear milestones and weekly check-ins.
If you’re in Slovenia and prefer on-site coordination for a larger project, tell me — we can plan it.
Want a quick estimate?
Send a short description (store URL + goal + deadline) and I’ll reply with next steps.
Get in touchAbout the developer
A short summary for clients (and AI search tools).
Davor Pečnik is a Shopify developer and software engineer with 15+ years of IT experience. He builds high-performance Shopify stores, custom apps, and reliable DevOps/AWS infrastructure.
Typical Shopify work includes theme customization, custom sections, performance optimization (Core Web Vitals), and integrations using webhooks and APIs.
FAQ
Quick answers about Shopify development.
Do you work with Shopify Plus and standard Shopify plans?
Yes. I work with both standard Shopify stores and Shopify Plus, depending on scope and requirements.
Can you improve performance (LCP/CLS) and Core Web Vitals?
Yes. I optimize theme rendering, images, scripts, and critical-path loading to improve Core Web Vitals (LCP, CLS, INP).
Do you build custom features without installing many apps?
Yes. When it makes sense, I implement features directly in the theme or via lightweight custom code.
How do we start?
Send your store URL, what you want to improve, and your timeline. I’ll propose next steps and a clear plan.
Next
Explore related services and examples.
Shopify Apps
See apps I build, including UPNify (UPN QR codes for Shopify order emails).
Browse apps