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I will setup or integrate custom shopify app, API for your b2b b2c store whop payment
Samuel .H
5.0
5.0
About this gig
Got an app that won't cooperate with your Shopify store?
I specialize in third-party app installations, custom Shopify API integrations (REST & GraphQL), and complete B2B/B2C store configurations. From wholesale pricing rules and customer-tagged access to advanced checkout customizations, I build reliable solutions that work exactly as expected.
I also troubleshoot conflicting apps, fix broken webhooks, and connect external systems your previous developer almost got working.
Whether you're running a B2B wholesale portal with tiered pricing or a high-volume B2C store with loyalty programs and subscription integrations, I deliver fully functional solutionsnot a "should be fine" handoff.
Services include:
- Custom Shopify App Development
- Shopify API Integration (REST & GraphQL)
- Shopify Functions
- Third-Party API Integration
- Private & Public Apps
- Bug Fixing, Checkout Extensibility
- Automation
- App Publishing
- Custom Features
- UI/UX Optimization
- Payment
- SMS & Courier API integrations.
Send me a message, and let's discuss your project before placing an order.
Respect third-party rights
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Get to know Samuel .H
Samuel .H
Everything Shopify
- FromUnited States
- Member sinceMar 2026
- Avg. response time1 hour
- Last delivery2 weeks
Languages
English, German
Hey, I'm Samuel, a Shopify specialist who handles everything from store builds to POS systems, custom app development, and API integrations.
I work across the full Shopify stack:
→ Shopify POS setup — point of sale, payment gateway, inventory sync, Toast & Square
→ Shopify store design — build, redesign, dropshipping, payments, SEO
→ Shopify app development — public apps, private apps, custom API integrations
→ Shopify app installation — B2B, B2C, third-party API connections
I deliver clean, documented work fast.
My Portfolio
FAQ
What types of integrations can you set up on my Shopify store?
I can integrate third-party apps, APIs, TikTok Shop, Facebook Shop, Instagram Shop, Amazon, eBay, Klaviyo, Omnisend, inventory sync tools, order fulfillment systems, n8n workflows, and custom webhook automations.
Do you build custom Shopify apps?
Yes. I can develop both public and private Shopify apps tailored to your specific business needs, including custom API connections and automated workflows.
Can you connect my Shopify store to Amazon or other marketplaces?
Absolutely. I can integrate your Shopify store with Amazon, eBay, Walmart, and Etsy using tools like Litcommerce, Codisto, or direct API connections for seamless multi-channel selling.
What automation tools do you work with?
I work with Shopify Flow, n8n, Zapier, webhooks, and custom API scripts to automate order processing, inventory updates, notifications, and other repetitive store tasks.
Can you migrate my store from another platform to Shopify?
Yes. I handle full store migrations from Wix, WordPress, Etsy, Squarespace, and other platforms to Shopify, including products, collections, and settings.
Will the store be mobile-friendly?
Yes — and this matters more in this niche than almost any other. Over 70% of adult eCommerce traffic comes from mobile devices. Every store I build is 100% responsive with fast-loading images and a smooth, app-like checkout experience on mobile.
How do I give you access to my Shopify store?
You can grant me collaborator access directly from your Shopify admin — no password sharing required. I'll send you a request or guide you through the process step by step.
Reviews
2 reviews for this Gig
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
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Most relevant
E eclorhouse
United States
Outstanding experience from start to finish. Samuel is not only technically skilled, but also extremely thoughtful in how he approaches a project. He helped me organize and structure my Shopify store in a way that I would have never been able to do on my own while running my business. As a business...
$100-$200
Price
3 weeks
Duration
Helpful?E eclorhouse
United States
He communicates clearly, offers solutions instead of problems, and genuinely cares about creating systems that will continue to work as the business grows. Every step felt professional, organized, and well planned. If you’re looking for someone who understands Shopify, inventory management, wholesale...
Up to $50
Price
8 days
Duration
Helpful?
Reviews
2 reviews for this Gig
| (2) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
E eclorhouse
United States
Outstanding experience from start to finish. Samuel is not only technically skilled, but also extremely thoughtful in how he approaches a project. He helped me organize and structure my Shopify store in a way that I would have never been able to do on my own while running my business. As a business...
$100-$200
Price
3 weeks
Duration
Helpful?E eclorhouse
United States
He communicates clearly, offers solutions instead of problems, and genuinely cares about creating systems that will continue to work as the business grows. Every step felt professional, organized, and well planned. If you’re looking for someone who understands Shopify, inventory management, wholesale...
Up to $50
Price
8 days
Duration
Helpful?
