# Gencer Karakaya
# Updated: 2026-10-05

> Senior Shopify developer based in Turkey with 6+ years of Shopify and Shopify Plus work across 65+ stores. Most recently Senior Shopify Developer at Transfer Kingdom (2025-2026), now open to a new full-time Senior Shopify Developer role. Builds custom themes, embedded apps, Shopify Functions and checkout extensibility, and the integrations between stores, ERPs and marketplaces, with a focus on Core Web Vitals. Publisher of three apps on the Shopify App Store.

Gencer Karakaya is a Senior Shopify Developer based in Ankara, Turkey, most recently Senior Shopify Developer at Transfer Kingdom (06.2025 - 10.2026). Open to work: Senior Shopify Developer roles, full time, remote. This site is his resume, portfolio and technical writing; it does not take client projects.

## Experience
- Custom Shopify and Shopify Plus theme development (Liquid, JavaScript, TypeScript, Tailwind CSS)
- Shopify app development: public App Store apps and custom apps (Remix, React, Node.js, Polaris, App Bridge, Billing API)
- Checkout Extensibility, checkout UI extensions and Shopify Functions
- Admin GraphQL, Storefront API and webhook integrations with ERPs, marketplaces (Amazon, Walmart) and email platforms
- Store performance work against Core Web Vitals (LCP, INP, CLS)
- Technical SEO, structured data and web accessibility for Shopify storefronts
- Platform migrations to Shopify
- Headless storefronts on the Storefront API with Hydrogen
- Cloudflare Workers for store-side services and this site

## Case studies
- Shopify Speed Optimization: auditing a slow theme: https://gencerkarakaya.com/tr/case-studies/shopify-speed-optimization (How a slow, app-heavy Shopify store reached healthy Core Web Vitals by auditing scripts, fixing LCP, and refactoring the theme. Method and results.)
- Shopify Markets: launching multi-currency, multi-language selling without SEO loss: https://gencerkarakaya.com/tr/case-studies/shopify-markets-internationalization (How a single-market Shopify store expanded to multi-currency, multi-language selling with Shopify Markets, correct hreflang, and indexable translations.)
- Shopify CRO: rebuilding the product page to lift average order value: https://gencerkarakaya.com/tr/case-studies/shopify-cro-product-page (How a product page rebuild with clearer hierarchy, trust signals, and upsell and cross-sell flows lifted average order value on a Shopify store.)
- Shopify Theme Migration: rebuilding a bloated theme into clean, modular Liquid: https://gencerkarakaya.com/tr/case-studies/shopify-theme-migration (How a hard-to-maintain Shopify theme was rebuilt into clean, modular Online Store 2.0 Liquid, faster and editable, without changing how the store looked.)

## Glossary
- Shopify Liquid: Liquid is Shopify's open-source templating language. It is the backbone of Shopify themes, used to load dynamic store data (products, collections, cart) into HTML at render time.
- Online Store 2.0: Online Store 2.0 is Shopify's theme architecture built around sections and blocks that merchants can add, remove, and reorder in the theme editor, with metafields for structured content.
- Shopify Plus: Shopify Plus is Shopify's enterprise tier. It unlocks Checkout Extensibility, Shopify Functions, B2B, Expansion Stores, and higher API limits for high-volume merchants.
- Checkout Extensibility: Checkout Extensibility is Shopify Plus's modern, upgrade-safe way to customize checkout using checkout UI extensions and Shopify Functions, replacing the legacy checkout.liquid and Checkout Scripts.
- Shopify Functions: Shopify Functions let developers customize backend logic (discounts, delivery and payment options, validation) with code that runs on Shopify's infrastructure, replacing legacy Scripts.
- Storefront API: The Storefront API is Shopify's GraphQL API for building custom and headless storefronts, giving full control over data fetching and the shopping experience outside the standard theme.
- Hydrogen: Hydrogen is Shopify's React-based framework for building headless storefronts on the Storefront API, typically deployed on Shopify's Oxygen hosting.
- Shopify Markets: Shopify Markets is Shopify's built-in toolset for international selling: multiple currencies, languages, localized pricing, and per-region settings managed from a single store.
- Metafields and Metaobjects: Metafields add custom fields to Shopify resources like products and collections; metaobjects define custom, reusable data structures. Together they model bespoke store data without custom apps.
- Core Web Vitals: Core Web Vitals are Google's user-experience metrics: Largest Contentful Paint (loading), Interaction to Next Paint (responsiveness), and Cumulative Layout Shift (visual stability). They influence rankings.
- Technical SEO: Technical SEO is the practice of improving how search engines crawl, index, and render a site: canonicals, crawl budget, structured data, site speed, and clean information architecture.
- Headless commerce: Headless commerce decouples the storefront (frontend) from the commerce backend, connecting them via APIs like the Storefront API. It trades simplicity for full control over the user experience.
Full glossary: https://gencerkarakaya.com/tr/glossary

## Expertise
Shopify, Shopify Plus, Liquid, JavaScript, TypeScript, React, Next.js, Remix, Node.js, Polaris, App Bridge, Tailwind CSS, Admin GraphQL API, Storefront API, Webhooks, Checkout Extensibility, Shopify Functions, Shopify Flow, Hydrogen, Oxygen, Headless Commerce, Platform Migration, Technical SEO, Core Web Vitals, Web Accessibility, Klaviyo, GA4, Google Tag Manager, Cloudflare Workers

## Profiles
- Resume: https://gencerkarakaya.com/resume
- LinkedIn: https://www.linkedin.com/in/gencerkarakaya
- GitHub: https://github.com/gencerkrky
- About: https://gencerkarakaya.com/about
- Now (monthly status): https://gencerkarakaya.com/now
- Apps (BlogPilot AI, AgentRank, Stockcast): https://gencerkarakaya.com/apps
- Case studies (27 Shopify storefronts): https://gencerkarakaya.com/work

## Recent articles
- [Spreadsheetler vs. Envanter Yazılımı Shopify İçin: Ne Zaman Geçiş Yapmalı](https://gencerkarakaya.com/tr/apps/stockcast-inventory-forecast/shopify-spreadsheet-vs-inventory-software-switch) [Stockcast: Inventory Forecast]: Shopify spreadsheetinin ne zaman yetersiz kaldığını, envanter yazılımının kendini ne zaman amorti ettiğini öğrenin. (Markdown: https://gencerkarakaya.com/tr/apps/stockcast-inventory-forecast/shopify-spreadsheet-vs-inventory-software-switch.md)
- [AI Arama ROI'sini Liderliğe Raporlamak: Kanalın Gerçekten İşe Yaradığını Kanıtlayan Metrikler](https://gencerkarakaya.com/tr/apps/agentrank/ai-search-roi-metrics-leadership-reporting) [AgentRank]: Liderliği ikna eden AI arama ROI metriklerini, atribüsyon boşluğunu nasıl düzeltileceğini ve Shopify için yönetim kurulu raporuna hazır panoyu nasıl (Markdown: https://gencerkarakaya.com/tr/apps/agentrank/ai-search-roi-metrics-leadership-reporting.md)
- [Shopify Ürün Sayfasını ChatGPT Keşfi için Optimize Etme (/product/chatgpt-plus Playbook'u)](https://gencerkarakaya.com/tr/apps/blogpilot-ai/shopify-product-page-chatgpt-optimization) [BlogPilot AI]: Shopify ürün sayfasını 2026'da ChatGPT Agentic Storefronts ve Google için optimize etmeyi öğrenin. Adım adım veri ve schema playbook'u içerir. (Markdown: https://gencerkarakaya.com/tr/apps/blogpilot-ai/shopify-product-page-chatgpt-optimization.md)
- [Magento'dan Shopify'a Site Taşıması: Geliştiriciler için Tam Teknik Rehber](https://gencerkarakaya.com/tr/blog/migration-magento-vers-shopify-guide-technique): Magento sitesini Shopify'a taşımak sadece CSV dışa aktarımdan çok daha fazlasını gerektirir. (Markdown: https://gencerkarakaya.com/tr/blog/migration-magento-vers-shopify-guide-technique.md)
- [Magento'dan BigCommerce'e Geçiş: Geliştirici Yürütme Detayları](https://gencerkarakaya.com/tr/blog/bigcommerce-migration-magento-developer-execution): Magento'dan BigCommerce'e geçiş, EAV kataloğunu ilişkisel modele dönüştürmeyi, vitrin yeniden inşa etmeyi ve her URL'yi haritalamayı gerektirir. (Markdown: https://gencerkarakaya.com/tr/blog/bigcommerce-migration-magento-developer-execution.md)
- [Ölü Stoğu Nakite Çevirme: Marjını Yiyene Kadar Harekete Geç](https://gencerkarakaya.com/tr/apps/stockcast-inventory-forecast/dead-stock-cash-recovery-margin-playbook) [Stockcast: Inventory Forecast]: Ölü stok depo tutma maliyeti, fırsat maliyeti ve tahmin bozulması yoluyla sessizce marjınızı aşındırır. (Markdown: https://gencerkarakaya.com/tr/apps/stockcast-inventory-forecast/dead-stock-cash-recovery-margin-playbook.md)
- [AI Arama Rakip Analizi: Shopify Markalarına Yönelik Adım Adım Çerçeve](https://gencerkarakaya.com/tr/apps/agentrank/ai-search-competitor-analysis-shopify-framework) [AgentRank]: Shopify mağazanızı ChatGPT, Perplexity, Claude ve Google AI Overviews'da rakiplerle karşılaştırın. Yinelenebilir beş adımlı çerçeve öğrenin. (Markdown: https://gencerkarakaya.com/tr/apps/agentrank/ai-search-competitor-analysis-shopify-framework.md)
- [Shopify'da Evergreen vs Trending Konular: Hangisi Uzun Vadede Daha Fazla Kazandırır?](https://gencerkarakaya.com/tr/apps/blogpilot-ai/shopify-evergreen-vs-trending-blog-topics) [BlogPilot AI]: Evergreen Shopify blog yazıları yıllar boyunca trafiği arttırırken, trending konular kısa süreli dalgalanma yaratıp kaybolur. (Markdown: https://gencerkarakaya.com/tr/apps/blogpilot-ai/shopify-evergreen-vs-trending-blog-topics.md)
- [Shopify Liquid Geliştirici: Alman Pazarı Vitrin Satış Sitesi İçin Teknik Derinlik Rehberi](https://gencerkarakaya.com/tr/blog/shopify-liquid-entwickler-german-market-guide): Alman pazarı için Shopify Liquid vitrin satış sitesi oluşturmak, hem şablonlama dilinde hem de zorlayıcı yasal düzenlemelerde ustalaşmayı gerektirir. (Markdown: https://gencerkarakaya.com/tr/blog/shopify-liquid-entwickler-german-market-guide.md)
- [Shopify Metafields Geliştirme: Özel Veri İçin Tüccar Rehberi](https://gencerkarakaya.com/tr/blog/shopify-metafields-desarrollo-guide): Shopify metafields geliştirmesini doğru yapmak, şema tasarımı, Liquid renderı ve 2026 API değişiklikleri anlamına gelir. (Markdown: https://gencerkarakaya.com/tr/blog/shopify-metafields-desarrollo-guide.md)
- [Shopify Satıcılarının İzlemesi Gereken Envanter KPI'ları (ve Görmezden Gelmesi Gerekenler)](https://gencerkarakaya.com/tr/apps/stockcast-inventory-forecast/shopify-inventory-kpis-track-ignore) [Stockcast: Inventory Forecast]: Doğru envanter KPI'ları, yeniden sipariş zamanını, nakit akışını öldüren stoku ve sadece gürültü olan metrikleri tam olarak gösterir. (Markdown: https://gencerkarakaya.com/tr/apps/stockcast-inventory-forecast/shopify-inventory-kpis-track-ignore.md)
- [Google AI Overviews ve SGE: Mavi Bağlantılardan Uzaklaşan Değişime Ayak Uydurmak](https://gencerkarakaya.com/tr/apps/agentrank/google-ai-overviews-sge-blue-link-shift) [AgentRank]: Google AI Overviews alışveriş sorgularının %14'ünde görülüyor ve organik tıklama oranını %61'e kadar azaltıyor. (Markdown: https://gencerkarakaya.com/tr/apps/agentrank/google-ai-overviews-sge-blue-link-shift.md)
- [Shopify Blog ROI'ını Dolar Cinsinden Nasıl Ölçersiniz (Aldatıcı Metrikler Değil)](https://gencerkarakaya.com/tr/apps/blogpilot-ai/shopify-blog-roi-measure-revenue-dollars) [BlogPilot AI]: GA4, UTM izleme ve yazıları satınalmalara bağlayan atfetme modelleri kullanarak Shopify blogunuzun gerçek dolar ROI'ını hesaplamayı öğrenin. (Markdown: https://gencerkarakaya.com/tr/apps/blogpilot-ai/shopify-blog-roi-measure-revenue-dollars.md)
- [Sepete Ekleme Oranınız Neden Takılı: Variant Picker, INP ve Güven Katmanı Çözümü](https://gencerkarakaya.com/tr/blog/shopify-atc-rate-variant-inp-trust-layer): Shopify sepete ekleme oranınız takılı kaldı çünkü üç belirli katman dönüşümleri sızdırıyor: variant picker deneyimi, etkileşimlerde yavaş INP (Markdown: https://gencerkarakaya.com/tr/blog/shopify-atc-rate-variant-inp-trust-layer.md)
- [Shopify Messaging vs. Klaviyo vs. Omnisend: Hangi E-Posta Yığını Gerçekten Mağazanıza Uyuyor?](https://gencerkarakaya.com/tr/blog/shopify-messaging-klaviyo-omnisend-comparison): Shopify'ın 2026 e-posta yığını değişikliği her tüccar için satın alma-yapma hesaplamasını değiştiriyor. (Markdown: https://gencerkarakaya.com/tr/blog/shopify-messaging-klaviyo-omnisend-comparison.md)

## Other languages
- English: https://gencerkarakaya.com/llms.txt