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I will develop custom shopify apps, stores and themes
Muhammad Umar
About this gig
I will build, customize, and optimize Shopify stores, themes, apps, and ecommerce integrations tailored to your business requirements.
I work with Shopify Liquid, Online Store 2.0, Shopify Functions, Admin API, Storefront API, GraphQL, REST APIs, webhooks, app extensions, metafields, and custom backend services.
My Shopify services include:
- Custom Shopify store and theme development
- Public, private, and custom Shopify apps
- Liquid sections, templates, and theme extensions
- Product, order, customer, and inventory automation
- Payment, subscription, loyalty, upsell, and fulfillment integrations
- Shopify API, CRM, ERP, warehouse, and third-party integrations
- Shopify Plus, B2B, wholesale, and multi-market functionality
- Store migrations, performance optimization, and bug fixing
- Custom dashboards, background jobs, webhooks, and data synchronization
I have worked on high-volume storefronts and Shopify-integrated platforms across fashion, jewelry, electronics, wholesale, loyalty, fulfillment, and subscription commerce.
Please contact me before ordering so I can review your store, app requirements, integrations, and technical scope.
Respect third-party rights
Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.
Get to know Muhammad Umar
Muhammad Umar
AI Fullstack Developer, AI Agents, AI SaaS MVPs, React, Node, Python, LLM, RAG
- FromPakistan
- Member sinceJul 2026
- Avg. response time1 hour
Languages
English
I am an AI fullstack software developer specializing in web apps, mobile apps (React Native), AI SaaS MVPs, Chrome extensions, AI agents, chatbots, and workflow automation. I am adept at frontend, backend, APIs, databases, cloud infrastructure, authentication, payments, and third-party integrations. I work with React, Next.js, Node.js, Python, Shopify, REST, GraphQL, PostgreSQL, MongoDB, Redis, AWS, Azure, GCP, Docker, and CI/CD. I also build RAG systems, vector search, multi-agent workflows, payments, subscriptions, and real-time platforms. $100M+ in combined client exits and valuations.
My Portfolio
FAQ
What Shopify services do you provide?
I develop complete Shopify stores, custom themes, Shopify apps, Liquid sections, API integrations, automation workflows, app extensions, migrations, bug fixes, and performance improvements.
Can you build a custom Shopify app?
Yes. I can develop custom, private, or public Shopify apps using Shopify APIs, GraphQL, webhooks, embedded admin interfaces, app extensions, authentication, billing, and custom backend services.
Can you customize an existing Shopify theme?
Yes. I can customize Liquid templates, sections, product pages, collection pages, navigation, cart functionality, metafields, responsive layouts, and Shopify Online Store 2.0 features.
Can you integrate Shopify with third-party systems?
Yes. I can connect Shopify with CRMs, ERPs, inventory platforms, fulfillment providers, payment systems, email tools, analytics services, databases, and supported third-party APIs.
Can you automate products, orders, and inventory?
Yes. I can automate product publishing, order processing, inventory synchronization, fulfillment, customer updates, notifications, webhooks, scheduled jobs, and data exchange between systems.
Can you work on my existing Shopify store or app?
Yes. I can add features, resolve bugs, improve performance, refactor code, upgrade integrations, customize themes, or complete unfinished functionality in an existing Shopify project.
Can you build Shopify Plus or B2B functionality?
Yes. I can support Shopify Plus, B2B and wholesale workflows, customer-specific pricing, company accounts, advanced checkout requirements, Shopify Functions, Markets, and custom integrations.
Will I receive the source code?
Yes. I provide the source code included in the agreed package or custom scope. For app projects, I can also provide setup instructions, environment configuration, and technical documentation.
Do I need to provide Shopify access?
Yes. I normally require Shopify collaborator access, theme files, API documentation, app credentials, and test accounts relevant to the project. Temporary and limited-access credentials are recommended.
