Nikola A.

Senior Shopify Developer | Shopify Plus | Shopify Expert

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.