Shopify Developer
Gencer Karakaya is a senior freelance Shopify developer with 6+ years of experience and 65+ stores delivered for US and international merchants. He builds custom Shopify and Shopify Plus themes, apps, and integrations in Liquid, JavaScript, and React, keeping Core Web Vitals at 95+. He works fully remote, worldwide, in English and Turkish, on freelance, contract, and white-label projects.
What this includes
- Custom Shopify and Shopify Plus theme development from scratch (Liquid, ES6+ JavaScript, Tailwind CSS)
- Public and custom (private) Shopify app development with Remix, React, Node.js, and Polaris
- Platform migrations to Shopify from WooCommerce, Magento, BigCommerce, and legacy stacks
- API, ERP, CRM, and payment-gateway integrations via Admin GraphQL and the Storefront API
- Core Web Vitals performance work, technical SEO, and conversion rate optimization
- Bug fixes, debugging, and ongoing maintenance on existing themes and apps
Frequently asked questions
How do I hire a Shopify developer?
Email a short brief of what you need (a new theme, an app, a migration, a fix, or an integration) and I reply with scope, timeline, and a fixed-price or hourly estimate. I work fully remote with merchants and agencies worldwide and can start within days for most projects.
How much does a freelance Shopify developer cost?
It depends on scope. Small bug fixes and integrations are billed hourly or as a fixed quote, while custom themes, apps, and migrations are scoped as fixed-price projects. I send a written estimate before any work starts, so there are no surprises.
Do you work with Shopify Plus?
Yes. I develop on Shopify Plus including Checkout Extensibility, checkout UI extensions, and Shopify Functions, and I handle high-volume custom checkout logic, discounts, and validation for Plus merchants.
Can you work with my existing theme or codebase?
Yes. I can work from your existing Shopify theme or app codebase and ship targeted changes, fixes, and new features without a full rebuild, following your conventions and your release process.
Related case studies
Guides on this topic
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- Shopify ヘッドレスと Storefront API: 実際に変わったことと、なぜそれが重要なのか
- Shopify Checkout、Markets、クロスボーダー販売: 今すぐ対応すべきこと
- 成長を促進するShopify アプリと自動化戦略