I help Shopify merchants grow their businesses through high-quality custom development, store optimization, and strategic advice.
🔧 Custom Shopify Development
- Themes built with Liquid, HTML, CSS & JS
- Frontends that load fast, convert better, and stay maintainable
- Blazing-fast, scalable builds — optimized from day one
🧠 Expert Shopify Advice & Consulting
- Native-first mindset: Use what Shopify already offers before reaching for third-party tools
- Clear, actionable guidance tailored to your business goals
- Solutions that last — not just patches
🧩 Custom Shopify Apps
- Solve backend challenges with powerful custom tools
- API integrations, automation, business logic, supplier syncs, and more
- Built stable, scalable, and lightweight
📈 Store Optimization
- CRO-focused upgrades that improve real KPIs
- Conversion audits, GA4 analysis, A/B testing
- Smarter growth, not just more ad spend
- 🛒 100+ Shopify stores (10+ on Shopify Plus)
- ✅ 300+ projects completed
- 🌍 Clients across the U.S., Canada, Australia & Europe
- 💬 5.0 ★ average client rating
“Filippos Dematis is one of the few who really understands what needs to be done and does it without a lot of back and forth.” — Matthias W.
“Went above and beyond... strong technical understanding, great communicator.” — Liz L.
“Every time I've worked with Filippos Dematis I've been thoroughly impressed.” — Vanspec M.
Whether you're launching, scaling, or optimizing — I’ll help you get more out of your Shopify store.
Message me here on GitHub, connect on LinkedIn, or visit devcommerce-agency.com to get started.
"Less technical friction. More growth."
Built for performance, stability, and real business impact.