Oleg S.

Shopify & Plus Developer | Custom Themes, Apps and Bundle Logic | CRO

Shopify Expert with 10+ years in eCommerce development. I help brands build, migrate, and scale high-converting Shopify and Shopify Plus stores, from Figma-to-Shopify theme development to advanced custom functionality and performance optimization. Clean, scalable, mobile-first code, delivered on time. Need Plus-level features without the Plus price tag? That's my specialty. I build native, app-free solutions that keep your store fast and your costs low. What I do: ✅ Custom Shopify 2.0 & Plus theme development: pixel-perfect, from scratch or built on premium themes (Dawn, Flow, Expanse, Maison) ✅ Figma / PSD to Shopify: accurate, fully responsive, mobile-first builds with no lost detail ✅ End-to-end store setup & launch: products, collections, navigation, apps, Markets, currencies, shipping, taxes. Ready to sell from day one ✅ Store migrations to Shopify (WooCommerce, WordPress, and others) with full data and UX preserved ✅ Advanced product customization: multi-tier variant systems (retail / bundle / extra), bundle pricing via metaobjects, step-by-step configurators, product builders, and addon parent-child linking with Shopify's Nested Cart Lines API (no apps) ✅ Custom cart experiences, built natively without apps: bundle grouping, custom quantity counters, single-request group removal, post-add-to-cart upsell flows, and a native Free Shipping Bar with multi-currency conversion and bundle preview ✅ Multi-currency & international: Shopify Markets, localization, and precise multi-currency price formatting for non-standard formats (e.g. AED) ✅ Metaobject-driven content sections: review sliders, masonry grids, and dynamic layouts powered by metafields, built as lightweight Web Components with zero third-party libraries ✅ Performance & Core Web Vitals: LCP/CLS fixes, JS cleanup, retina (2×) and WebP media pipelines, Lighthouse audits, A/B testing ✅ Custom Shopify apps & serverless backends: private apps and Cloudflare Workers solutions that bring Plus-only functionality (bundle logic, multi-tier inventory sync, Shopify Functions equivalents) to stores on any plan, with embedded admin UIs, webhook and scheduled cron sync, idempotency, and race-condition handling, all on free-tier infrastructure ($0 hosting) ✅ Advanced SEO control: variant-level noindex, per-variant JSON-LD, structured data tuning ✅ Cross-browser compatibility: Safari flex/grid and object-fit fixes across engines ✅ Custom sections, metafields, metaobjects, and advanced Liquid logic My stack: 🧩 Shopify & Plus: Liquid, OS 2.0, Metafields, Metaobjects, Sections, JSON Templates, Nested Cart Lines API ⚙️ Frontend: JavaScript ES6, Web Components, React, Remix, Next.js, Tailwind CSS ☁️ Backend: Cloudflare Workers, Cron Triggers, Workers KV, Shopify Webhooks, REST & GraphQL Admin API 🚀 Optimization: PageSpeed Insights, Lighthouse, Core Web Vitals, A/B testing Who I work with: ✔ Entrepreneurs launching their first Shopify store ✔ Businesses improving existing themes, UX, and performance ✔ D2C brands with custom products, configurators, and complex bundle/pricing logic ✔ Founders who need a reliable expert to launch end-to-end Why clients choose me: 🚀 10+ years in professional web development, fully focused on eCommerce 🛠️ Full-stack expertise with clean, maintainable code 🤝 Clear communication, reliable delivery, fast turnaround 💬 Ready to start? Invite me to your project and I'll review your setup and suggest the best next steps.