You will get Custom Shopify Functions for discounts, checkout, shipping & payment logic
Top Rated
Project details
I will develop custom Shopify Functions to extend your Shopify store's backend logic.
Shopify Functions allow developers to customize checkout behavior, discounts, delivery options, and payment rules directly inside Shopify’s infrastructure.
With my expertise in Shopify development, I can create powerful custom logic tailored to your business needs.
### Examples of Shopify Functions I can build
✔ Custom discount logic
✔ Volume discounts
✔ Conditional checkout validation
✔ Custom shipping rate logic
✔ Hide or reorder payment methods
✔ Wholesale pricing rules
✔ Cart validation rules
### Ideal for
• Shopify Plus stores
• Stores migrating from Shopify Scripts to Functions
• Merchants needing advanced checkout logic
### Why work with me
• 10+ years Shopify development experience
• 300k+ earned on Upwork
• Deep experience with Shopify APIs and apps
• Production-ready scalable solutions
Shopify Functions allow developers to customize checkout behavior, discounts, delivery options, and payment rules directly inside Shopify’s infrastructure.
With my expertise in Shopify development, I can create powerful custom logic tailored to your business needs.
### Examples of Shopify Functions I can build
✔ Custom discount logic
✔ Volume discounts
✔ Conditional checkout validation
✔ Custom shipping rate logic
✔ Hide or reorder payment methods
✔ Wholesale pricing rules
✔ Cart validation rules
### Ideal for
• Shopify Plus stores
• Stores migrating from Shopify Scripts to Functions
• Merchants needing advanced checkout logic
### Why work with me
• 10+ years Shopify development experience
• 300k+ earned on Upwork
• Deep experience with Shopify APIs and apps
• Production-ready scalable solutions
Platform
ShopifySupported Plugin Types
Payment, Dropshipping, Shipping, Customer Support, Marketing, Inventory, Analytics, Chat, Form, Finance, Map, EventsWhat's included
| Service Tiers |
Starter
$150
|
Standard
$250
|
Advanced
$500
|
|---|---|---|---|
| Delivery Time | 2 days | 4 days | 10 days |
Number of Revisions | 1 | 2 | 2 |
Optional add-ons
You can add these on the next page.
Additional Revision
+$50
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Tony P.
Aug 17, 2026
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Worked well on a variety of projects over time. A good team to turn to.
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Osi M.
Jul 30, 2026
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Karam was very quick with changes and helpful to our brand
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Sean L.
Jul 29, 2026
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Fast and easy to work with. Would recommend.
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Mark S.
Jul 29, 2026
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Uzma R.
Jul 27, 2026
30 minute consultation
About Karam
Shopify Developer | Shopify Plus, CRO, Migration & Custom Apps
99%
Job Success
Rajpura, India - 3:45 am local time
I help ecommerce brands and agencies build, redesign, migrate, fix and improve Shopify and Shopify Plus stores.
Whether you need a complete store, custom functionality, a faster website, better product pages or a safe migration to Shopify, I provide practical solutions designed to improve usability, performance and sales.
➜ Complete Shopify store development
➜ Shopify store redesign
➜ Shopify Plus development
➜ Figma to Shopify
➜ Shopify migration
➜ Custom themes and features
➜ Custom Shopify apps and integrations
➜ Speed and conversion optimization
➜ Bug fixing and ongoing support
My goal is to create a Shopify store that is:
➜ Easy for customers to use
➜ Fast and mobile-friendly
➜ Simple for your team to manage
➜ Designed to generate more sales
➜ Built properly without unnecessary apps
🛍️ SHOPIFY STORE DESIGN & DEVELOPMENT
I can build a complete Shopify store or improve your existing one.
➜ Complete Shopify store setup
➜ Shopify store redesign
➜ Custom Shopify theme development
➜ Homepage, product page and collection page design
➜ Cart, navigation and search improvements
➜ Mobile-friendly store development
➜ Shopify Plus customization
➜ Custom sections you can edit yourself
➜ Subscription, bundle and product-option setup
➜ Shopify checkout customization
➜ Theme updates and ongoing support
🎨 FIGMA OR DESIGN TO SHOPIFY
Already have a design? I can convert it into a working Shopify store that looks accurate on desktop and mobile.
➜ Figma to Shopify
➜ Adobe XD, PSD or Sketch to Shopify
➜ Webflow or HTML design to Shopify
➜ AI-generated design to Shopify
➜ Page builder design to a faster Shopify theme
➜ Editable sections for easy store management
🔄 MIGRATION TO SHOPIFY
I can move your existing ecommerce website to Shopify while protecting important store data and SEO.
➜ WooCommerce to Shopify
➜ WordPress to Shopify
➜ Magento to Shopify
➜ Existing Shopify theme to a new theme
➜ Product, customer and order migration
➜ Page, blog and content migration
➜ URL redirects to protect SEO rankings
➜ App replacement and functionality setup
➜ Complete testing before launch
⚙️ CUSTOM SHOPIFY FEATURES & INTEGRATIONS
If a Shopify app cannot meet your requirements, I can build a custom solution or connect Shopify with your existing business software.
➜ Custom Shopify apps
➜ Custom product options and pricing rules
➜ ERP, CRM and inventory connections
➜ Shipping and fulfilment integrations
➜ Product, customer and order data syncing
➜ Internal dashboards and management tools
➜ Automated order and business workflows
➜ Shopify Flow, Zapier, Make and n8n setup
📈 SALES, SPEED & USER-EXPERIENCE IMPROVEMENTS
I can review your store and improve areas that may be slowing down customers or reducing sales.
➜ Product page improvements
➜ Mobile shopping experience improvements
➜ Cart and checkout improvements
➜ Shopify speed optimization
➜ Core Web Vitals improvements
➜ App and theme performance review
➜ Removal of unnecessary apps and code
➜ Conversion rate optimization
➜ GA4 ecommerce tracking
➜ Klaviyo setup and integration
🐞 SHOPIFY BUG FIXING & SUPPORT
You can also hire me for small Shopify tasks, urgent problems or ongoing store support.
➜ Theme and layout fixes
➜ Mobile display issues
➜ Cart and checkout problems
➜ App conflicts
➜ Broken features and buttons
➜ Shopify theme updates
➜ Speed and performance issues
➜ Regular Shopify maintenance
🤖 AI & BUSINESS AUTOMATION
I build practical AI and automation solutions that reduce repetitive work and save your team time.
➜ AI customer-support systems
➜ Automated FAQ and support workflows
➜ AI-assisted product descriptions and content
➜ Internal AI assistants for your team
➜ Automated reports and dashboards
➜ Order and inventory automation
➜ OpenAI, ChatGPT, Claude and Gemini integrations
➜ Make, Zapier and n8n workflows
✅ WHY CLIENTS WORK WITH ME
➜ Top Rated Plus on Upwork
➜ 650+ completed Upwork contracts
➜ Experience with small stores and Shopify Plus brands
➜ Clear communication and honest recommendations
➜ Clean and maintainable development
➜ Mobile-friendly and performance-focused work
➜ Support for both small fixes and large projects
➜ Long-term support after project completion
🛍️ INDUSTRIES I HAVE WORKED WITH
➜ Fashion, apparel and jewelry
➜ Beauty, skincare and wellness
➜ Food and beverage
➜ Home décor and furniture
➜ Electronics and technology
➜ Sports, fitness and outdoor products
➜ Baby, kids and pet products
➜ Dropshipping and print-on-demand
➜ Automotive accessories
➜ Books, education and digital products
➜ Luxury and sustainable products
➜ Software and subscription businesses
➜ Nonprofit and charity organizations
Need help with your Shopify store? Send me your requirements, and I will recommend the most practical solution.
Steps for completing your project
After purchasing the project, send requirements so Karam can start the project.
Delivery time starts when Karam receives requirements from you.
Karam works on your project following the steps below.
Revisions may occur after the delivery date.
Discuss on your requirement
Make plan and strategy