Shafi I.

Shopify Developer | Shopify Plus | Claude code | Custom Apps

I help DTC brands and agencies with Shopify theme development, custom Shopify apps, page speed optimization, CRO, and Shopify Plus engineering. My work is backed by full-stack expertise and AI workflows using Claude Code and Codex, TOP RATED PLUS | 100% JOB SUCCESS | $100K+ EARNED | 65 UPWORK JOBS During 5+ years of professional development, I have worked across 100+ Shopify stores and built 20+ private and custom apps. I can handle both the customer-facing storefront and the systems behind it, from Liquid and theme architecture to databases, APIs, webhooks, and automation. SHOPIFY THEME DEVELOPMENT • Custom Shopify themes built from scratch • Shopify theme redesigns and legacy theme modernization • Figma or Adobe XD to responsive, pixel-accurate Shopify • Online Store 2.0 sections, blocks, templates, and theme architecture • Product, collection, landing, cart, and customer account experiences • Metafields, metaobjects, structured product data, and filterable catalogs • Clean Liquid, JavaScript, HTML, CSS, and Git-based development SHOPIFY APP DEVELOPMENT AND INTEGRATIONS • Private, custom, and embedded Shopify apps • React, Remix, Node.js, GraphQL, and Shopify APIs • Shopify Admin GraphQL API, webhooks, authentication, and app billing • Shopify Functions, checkout extensions, and customer account extensions • B2B pricing, wholesale flows, product bundlers, subscriptions, and customer portals • ERP, CRM, 3PL, inventory, Klaviyo, and third-party integrations • Background jobs, workflow automation, and internal admin tools PAGE SPEED, CRO, AND TECHNICAL QUALITY • Shopify speed optimization and Core Web Vitals improvements • Liquid rendering, JavaScript execution, asset loading, and image optimization • App bloat and third-party script audits • CRO experiment implementation for product, landing, cart, and subscription flows • Technical Shopify SEO, structured data, and accessibility • Responsive, cross-browser, and regression testing • Safe Git-based QA and controlled production releases FULL-STACK AND AI FOUNDATION My full-stack background allows me to solve problems that do not stop at the theme layer. I work with React, Next.js, Remix, Node.js, TypeScript, PostgreSQL, Prisma, REST APIs, GraphQL, webhooks, authentication, and background services. My AI and machine learning experience focuses on practical product integration. This includes Anthropic API and OpenAI API integrations, AI agents, structured outputs, tool calling, context engineering, workflow automation, guardrails, testing, and human approval systems. I also use Claude Code and OpenAI Codex as part of custom development workflows with reusable project context, planning, automated checks, and code review. This helps me turn requirements, Figma designs, screenshots, or rough ideas into functional prototypes quickly, then develop the approved direction into production-quality Shopify or full-stack software. One example is Wingman, an approval-gated Shopify AI agent I am building. It analyzes a live store, generates namespaced Liquid sections, creates previews, and installs approved sections through Shopify Admin GraphQL. Nothing reaches the storefront without explicit human approval. ONGOING SHOPIFY DEVELOPMENT • New Shopify sections, features, and landing pages • Theme customization, bug fixing, and maintenance • App installation and custom storefront integration • Performance monitoring and CRO iteration • Technical support for Shopify agencies and in-house teams • Long-term development, QA, and release support AI helps me prototype and implement faster, but it does not replace engineering judgment. I remain responsible for architecture, code quality, security, testing, and every production release. You get one developer who understands Shopify deeply and can also work across the frontend, backend, database, APIs, and AI layer when the project requires it. Send me your store URL, Figma design, app requirements, or performance issue. I will help you identify the cleanest solution and explain how I would build it.