Gencer Karakaya

Senior Shopify Developer
Ankara, Turkey gencerkrky@gmail.com LinkedIn GitHub gencerkarakaya.com

Summary

Senior Shopify and Shopify Plus developer and freelancer specializing in custom theme and app development, checkout extensibility, platform migrations, bug fixes, API and ERP/CRM integrations, Core Web Vitals performance (95+), technical SEO, and Storefront API / headless (Hydrogen) builds.

Experience

Transfer Kingdom · USA

06.2025 - Present
Senior Shopify Developer
  • Build fully custom Shopify themes from scratch in Liquid, modern JavaScript, and Tailwind CSS, keeping every page at a 95+ Core Web Vitals score.
  • Ship fast, reusable store components and turn designs into working pages quickly through a modern development workflow.
  • Run technical SEO audits with Ahrefs and Screaming Frog, then fix the issues that hold rankings and site health back.
  • Own the CI/CD pipeline and Shopify CLI setup so releases go live with zero downtime and no bugs.

EZ Commerce US · USA

01.2023 - 05.2025
Shopify Developer & Marketplace Manager
  • Customized Shopify themes and fixed front-end bugs using HTML, CSS, JavaScript, and Liquid.
  • Built landing and product pages with GemPages and PageFly, giving the team faster, more flexible design control.
  • Planned and ran on-page SEO, using Shopify metafields to structure product data for search.
  • Set up upsell and cross-sell flows and integrated third-party apps to lift average order value.

Regis Interactive · TR

05.2019 - 12.2022
Shopify Developer & Marketplace Manager
  • Built and managed Shopify stores end to end, theme customization, app extensions, and integrations with the Storefront API, Admin API, and App Proxies.
  • Managed product catalogs and listings, and produced SEO content tied to clear KPIs.
  • Listed and optimized products on Amazon, eBay, and Etsy, handling both FBA and FBM fulfillment.
  • Ran paid acquisition campaigns across Google, Meta, and TikTok Ads.

Skills

ShopifyShopify PlusLiquidJavaScriptTypeScriptReactNext.jsRemixNode.jsPolarisApp BridgeTailwind CSSAdmin GraphQL APIStorefront APIWebhooksCheckout ExtensibilityShopify FunctionsShopify FlowHydrogenOxygenHeadless CommercePlatform MigrationTechnical SEOCore Web VitalsWeb AccessibilityKlaviyoGA4Google Tag ManagerConversion Rate Optimization

Certifications · Shopify Academy & Credly

Education & Languages

Akdeniz University · Accounting · 2010-2012

Languages: English, Turkish

Selected work

27 Shopify storefront case studies: gencerkarakaya.com/work