Hire the Best Shopify Developers
in Serbia

I build fast, accessible, conversion-optimized Shopify themes — clean Liquid architecture, native API integrations, zero unnecessary app dependencies. ──────────────── WHAT I COVER ──────────────── ⚡ Liquid, JavaScript & Shopify APIs 🚀 Performance, SEO & Accessibility 🧩 App Extensions & Shopify Functions 🔌 App Integration & Store Health 📈 CRO Implementation ──────────────── ⚡ Liquid, JavaScript & Shopify APIs Custom theme code built on Shopify's native APIs — no bloat, no unnecessary apps. Custom Liquid · Metafields & metaobjects · AJAX API · Section Rendering API · Recommendations API · Storefront API · Vanilla JS · Modern CSS I write semantic, maintainable Liquid that integrates directly with Shopify's native APIs. Metafields and metaobjects replace app-dependent data layers. The AJAX and Section Rendering APIs power dynamic UX without full-page reloads. The Storefront API enables headless and hybrid builds. All JavaScript is vanilla — no jQuery, no framework overhead. OS 2.0 architecture · JSON templates · Dynamic sections · Theme blocks · Headless Shopify · Hybrid storefront · Liquid filters · Global sections ──────────────── 🚀 Performance, SEO & Accessibility Speed, structure, and inclusivity built into the theme — each one reinforcing the others. Core Web Vitals · LCP / INP / CLS · Lazy loading · Render-blocking audit · Structured data · Canonical tags · WCAG accessibility · ARIA markup Core Web Vitals directly affect search ranking and conversion. I audit and resolve LCP bottlenecks (image sizing, preloading, critical CSS), INP issues (event handler debouncing, task splitting), and CLS problems (reserved space, font swap). Structured data (JSON-LD) for products, breadcrumbs, and FAQs improves rich snippet eligibility. WCAG 2.1 AA compliance and ARIA markup ensure the store works for every customer and passes automated accessibility audits. JSON-LD schema · Open Graph · Rich snippets · Font optimization · Critical CSS · Image compression · Semantic HTML · PageSpeed 90+ ────────────────── 🧩 App Extensions & Shopify Functions Extending checkout and post-purchase surfaces without touching core platform code. Checkout UI extensions · Shopify Functions · Post-purchase extensions · WebAssembly · PCI-compliant sandbox · Custom discount logic · One-click upsell Checkout UI extensions replace legacy checkout.liquid for Shopify Plus stores — adding upsells, custom fields, and trust badges inside a PCI-compliant sandbox. Shopify Functions allow custom discount logic, shipping rules, and payment filtering at the platform level. Post-purchase extensions capture upsell revenue after payment without re-entering checkout flow. Checkout branding API · Delivery customization · Payment customization · Order routing logic · Discount stacking · Bundle discounts ───────────────── 🔌 App Integration & Store Health Evaluating, installing, and managing App Store apps cleanly inside a live store. App evaluation · Permission scope review · Theme blocks & app embeds · Script tag audit · Conflict resolution · Clean uninstall Not every problem needs a custom build — but every app needs proper evaluation. I review permission scopes, script tag injection, and theme block conflicts before installation. When apps are removed, I audit and clean residual code, Liquid snippets, and asset files to prevent performance degradation. I resolve conflicts between competing apps and establish clean embed patterns that keep the theme editor predictable. Residual code cleanup · App vs custom build analysis · Third-party script management · Tag manager integration · App performance impact audit ───────────────── 📈 CRO Implementation Converting briefs into theme code across product, cart, and checkout — built to test and measure. Sticky ATC · Quick-view drawers · Cart drawer · Free shipping bar · In-cart upsell · Figma-to-Liquid · Feature flags · A/B test structure CRO work lives or dies by implementation quality. Sticky ATCs, quick-view drawers, and cart drawers are built with Section Rendering API and AJAX — no page reloads, no layout shift. Free shipping bars and in-cart upsells pull live cart data. Figma-to-Liquid translation preserves pixel-accurate design intent while maintaining theme editor flexibility. Feature flags allow new components to ship to a percentage of traffic for A/B testing before full rollout. Split testing · Conversion tracking · GTM integration · Heatmap-ready markup · Bundle builder UI · Exit intent · Product recommendations · Upsell flows ───────────────── Shopify Development | Liquid (Programming Language) | Shopify Theme Development | Shopify Plus | Conversion Rate Optimization (CRO) | Web Performance | Shopify App Integration | JavaScript | API Integration | Web Accessibility (WCAG) | Front-End Development | Technical SEO | E-commerce Development | UI/UX Implementation | Core Web Vitals

Most Shopify stores do not have a traffic problem. They have a conversion, performance, and reliability problem. I help Shopify and Shopify Plus brands scale with conversion-focused builds, Checkout Extensibility, Shopify Functions, and integrations that stay reliable. If any of this feels familiar, I can help: • You’re spending on ads but conversion is stuck • The theme is slow and every change feels risky • Checkout limitations are costing you revenue • Apps and integrations are messy and break often • You need someone senior who can own the roadmap end-to-end How I work: • Diagnose what’s blocking revenue (CRO + performance + tech debt) • Ship high-impact fixes fast (PDP, cart, checkout, collection UX) • Stabilise the foundations (integrations, data syncs, tracking, SEO hygiene) • Keep momentum with a clear roadmap and reliable delivery What I build: • Shopify Plus builds and replatforms (DTC and B2B) • Checkout Extensibility + Shopify Functions • Custom apps, integrations, and data pipelines (ERP, 3PL, CRM, analytics) • Headless (Hydrogen/Remix) when it makes business sense • Performance + technical SEO tied to revenue metrics Why clients hire me: • 10+ years on Shopify • 500+ builds shipped • Hands-on from architecture to QA and launch If you want a technical partner who can own the roadmap and ship reliably, message me and tell me what you are trying to improve (conversion, checkout, speed, or integrations).

I've been building web apps since 2011. I'm on Shopify since 2014 - custom themes, embedded apps, Shopify Plus stores, and everything in between. With 10+ years of hands-on experience and a track record of leading long-term, high-value projects, I bring both deep technical expertise and the reliability that comes with senior-level ownership. My core focus is Shopify in its full depth. Shopify Development: Liquid · Storefront & Admin API (REST + GraphQL) · App Bridge · Polaris · Theme Extensions · Checkout Extensibility · Metafields & Metaobjects · Section Rendering API · Markets & Geo-IP · Shopify CLI / GitHub workflow · OS 2.0 · Dawn · Hydrogen (Headless) App & Backend Development: Embedded Shopify apps · Node.js / Fastify · PHP / Symfony · Python / Flask · REST APIs · Webhooks · MySQL · PostgreSQL Frontend & Performance: JavaScript (ES6+) · React · HTML5/CSS3 · Figma-to-Liquid · Core Web Vitals · LCP/CLS optimization · Three.js · Canvas API · Swiper.js · etc Beyond code, I understand what merchants actually need - fast load times, clean architecture, maintainable codebases and solutions that scale. I've worked across DTC and B2B stores, handling everything from greenfield theme builds to complex app integrations, performance overhauls, migration from WooCommerce, BigCommerce, Magento, and other platforms, and long-term maintenance. I'm available for full-time or part-time remote engagements. If you're looking for a senior developer who can own the technical side of your Shopify store or product - let's talk.

Serbia-based full-stack developer specializing in Shopify Hydrogen storefronts, headless commerce architecture, and CRO. Upwork Expert-Vetted Top 1%. I build custom headless storefronts (Hydrogen + React Router), extend and integrate Python/Django backends, and wire up the entire stack — Algolia search, Storyblok CMS, GraphQL (Shopify Admin & Storefront), ERP/PIM/CRM integrations, and CI/CD pipelines for Shopify Oxygen and edge deployments. I also specialize in Shopify Plus theme development, CRO, migrations (Liquid → Hydrogen, WooCommerce → Shopify, Django-based frontends → headless), and the third-party integrations (Klaviyo, Checkout Champ, ShipperHQ, Replo, and more) that make a store actually run. Check my portfolio at stargazerstudio.net/portfolio I mainly work with UK/US brands, often picking up projects where a previous developer stalled or disappeared mid-build — including complex headless setups where standard Shopify assumptions don't apply. In today's global economy, my goal is to give you senior-level, agency-quality work at a fraction of agency overhead. Over 10 years of experience working with brands and agencies. Shoot me a message and I'll give you a quote! My work blends engineering, CRO principles, and product thinking — focused on reliability, performance, and revenue impact. I'm also AI-fluent: comfortable using AI-assisted workflows to move faster without cutting corners on code quality. Before specializing in Shopify and full-stack ecommerce, I also worked in 3D (Cinema 4D, Octane Render) and shipped projects for major brands — that background gives me an edge on design-heavy, cross-functional builds. Core Skills • Shopify Hydrogen (React Router) — custom headless storefronts • Shopify Plus theme development & Liquid • Shopify Functions, Apps, Checkout Extensibility, B2B & Wholesale • Python / Django — backend APIs, ERP/PIM/CRM integrations • GraphQL (Shopify Admin & Storefront APIs) • Algolia search integration & reindexing • Storyblok & headless CMS workflows • CI/CD pipelines & Shopify Oxygen / edge deployments • Liquid → Hydrogen migrations & legacy frontend modernization • Feed syndication & custom API middleware • Replo & page-builder integrations • Klaviyo, Checkout Champ, ShipperHQ & app integrations • Next.js (headless alternative stack) • Speed & Performance Optimization • CRO & A/B Testing • UX/UI implementation from Figma • Data-driven problem solving Personal website: filiprastovic. com

If you are looking for an e-commerce and shopify expert, you just found your missing piece! More than 4 years of experince with multi 7 and 8 figure clients and owning a brand myself, makes me ready for your project. I care about performance. I test, analyze, reserach and then put it all together into high converting page that will beat the competition. And at the end, page will look clean and branded. I don't need hand-holding and babysitting, I work efficiently and I'm not stoping untill we find the structure, offer and funnel that works for you💸 My Services: . Complete Shopify store built from Scratch · Responsive Design on all devices · Content creation, Product Images and everything that possible with AI · Conversion rate optimization · Shopify app integration · Payment and Checkout Setup · Life time expert . 24/7 availability and responsivness · Media buying and create strategist · Video meetings anytime you want If you have project waiting to be done or looking to expand your team, text me directly and let's discuss the details and how can I help. I'm ready! 🔧 EXPERTISE: Shopify | Web Design | Conversion Rate Optimization | E-commerce | D2C | A/B Testing | Competitor Analysis | Market Research | CRO Expert | Dropshipping | Branded Dropshipping | E-commerce Website | Meta Ads | Sales Funnel | Shopify Website | Landing page optimization | Shopify Performance Optimization | Shopify CRO INDUSTRIES: Fashion eCommerce • Clothing eCommerce • Apparel eCommerce • Beauty eCommerce • Cosmetics eCommerce • Skincare eCommerce • Wellness eCommerce • Nutrition eCommerce • Supplement eCommerce • Food eCommerce • Beverage eCommerce • Home & Living eCommerce • Furniture eCommerce • Kitchenware eCommerce • Pet Care eCommerce • Pet Products eCommerce • Baby Products eCommerce • Kids Products eCommerce • Jewelry eCommerce • Footwear eCommerce • Accessories eCommerce • Luxury eCommerce • Automotive eCommerce • Electronics eCommerce • Consumer Electronics eCommerce • Mobile Accessories eCommerce • Sports & Fitness eCommerce • Bicycle eCommerce • CBD eCommerce • Organic Products eCommerce • Sustainable Products eCommerce • Medical Supplies eCommerce • Healthcare eCommerce • Industrial eCommerce • Electrical Equipment eCommerce • B2B eCommerce • Wholesale eCommerce • DTC eCommerce • Subscription eCommerce • Multi-Country Ecommerce Whether you are planning a Shopify migration, need advanced Shopify development, want to improve store performance, or need a long-term Shopify partner, I'd be happy to discuss your project. Shopify expert on Upwork | Shopify developer Upwork | Shopify designer Upwork | Shopify Store set up Upwork | Shopify Website Development | Shopify Store Setup | Shopify Theme Customization | Shopify Plus | Shopify Online Store Design | Shopify E-commerce Solutions | Shopify App Development | E-commerce Development | Landing Page Design | Front-End Development | UI/UX Design | Responsive Web Design | HTML | CSS | SEO Optimization | Dropshipping Store Setup | Web Design & Development | Store Optimization | Shopify Specialist | Figma to Shopify expert | Shopify Migration expert | Shopify Bundle & Subscription expert | DTC/D2C Ecommerce Specialist | CPG Website Design | CPG Website Development | CPG Ecommerce Website

Hey there! I’m Djordje Divac, a Premium Webflow & Shopify Developer and Designer based in Serbia with a passion for building sleek, interactive websites that truly connect with users. My mission? To take your ideas and turn them into engaging digital experiences that not only look great but also work flawlessly. What I bring to the table: Custom, high-impact Webflow sites & Shopify stores designed to impress and perform Expert Figma-to-Webflow/Shopify conversions, ensuring your design vision stays intact Responsive, user-friendly interfaces** that work seamlessly on all devices Thoughtful design solutions** tailored to brand identity and audience engagement Why clients choose me: Proven experience:** 150+ completed projects ★4.9 average rating — Top-Rated since 2024 Strong design-to-development workflow:** Transforming Figma files into polished, functional websites and Shopify stores Crystal-clear communication:** Daily updates via Loom, collaborative Kanban boards, and zero guesswork Flexible availability:** CET timezone with convenient overlap for US mornings and AU evenings Friendly and approachable:** Committed to your project’s success My 3-step process: Plan & Strategize:** Understanding your vision, goals, and key elements through collaborative brainstorming Design & Build:** Creating pixel-perfect Webflow sites and Shopify stores that reflect your brand and captivate your audience Launch & Support:** Testing, optimizing, and ensuring everything runs smoothly post-launch, with 30 days of support included Team capacity: I lead a skilled team of Webflow & Shopify experts, ensuring that your project is delivered efficiently and up to the highest standards, whether it’s a landing page or a multi-page site. Ready to get started? Click “Invite” or schedule a free 15-minute consultation — I’ll respond within the hour.