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$
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I will fix shopify API, product sync, inventory, orders and ebay integration
Joevic Elvis
5.0
5.0
About this gig
Shopify or eBay sync not working correctly? I can fix it.
If your Shopify and eBay stores are not syncing products, inventory, orders, variants or fulfillment data correctly, I can troubleshoot the API/integration and fix the underlying issue.
I specialize in Shopify API, eBay API, product synchronization, inventory synchronization, order synchronization, webhooks and ecommerce integrations.
I can fix issues with:
- Shopify eBay product sync
- Inventory not updating correctly
- Orders not syncing between platforms
- Product/variant synchronization issues
- SKU and inventory mapping
- Duplicate or missing products
- Incorrect product data
- eBay listing synchronization
- Shopify/eBay API errors
- Webhook failures
- Authentication/API connection problems
- Existing automation and integration bugs
- Third-party ecommerce API integrations
Why work with me?
- Shopify & eBay API experience
- Product, inventory & order synchronization
- REST APIs & webhooks
- Existing integration troubleshooting
- Clear communication
- Tested solutions
Contact me before ordering so I can review the requirements and recommend the appropriate approach.
Get to know Joevic Elvis
Joevic Elvis
Backend API And Ecommerce Integration Expert
- FromNigeria
- Member sinceJan 2026
- Avg. response time1 hour
- Last delivery2 months
Languages
English, German, Spanish
I’m a Backend & API Integration Specialist focused on building and fixing high performance eCommerce systems. I solve broken payment flows, failed API integrations, and automation issues across platforms.
Expertise: Stripe API, Stripe Connect, PayPal integration, Shopify, WooCommerce, REST APIs, webhooks, shipping APIs (DHL, FedEx, USPS, ShipStation), Node.js, PHP, Laravel, JavaScript, JSON/XML APIs.
I handle Zapier, Make.com, Firebase, OAuth and ensure production ready, scalable systems that sync reliably under real traffic.
Available for API fixes, integrations, and backend development.
My Portfolio
Other Software Development Services I Offer
FAQ
What information do you need to start the Shopify or eBay API integration?
Just temporary API keys or collaborator access, plus a short list of the features you want automated (orders, inventory, product sync).
Will the automation affect my live store during setup?
No. I develop and test in a sandbox or staging environment and deploy only after you approve, ensuring zero downtime.
Can you connect other tools besides Shopify and eBay?
Yes. I can integrate third-party apps like Google Sheets, CRMs, or payment gateways as an add-on to your project.
Do you offer support after delivery?
Absolutely. Every order includes 7 days of free bug-fix support, with options to extend for ongoing maintenance.
Can you fix an existing Shopify/eBay integration?
Yes. You don't need to start from scratch. I can inspect your existing integration and troubleshoot API, webhook, mapping and synchronization problems.
Can you fix Shopify and eBay inventory sync?
Yes. I can troubleshoot inventory synchronization, SKU mapping, quantity updates and related API/webhook issues.
Can you fix product and variant synchronization?
Yes. I can investigate missing products, incorrect product data, variants, SKUs and synchronization problems between Shopify and eBay.
Reviews
4 reviews for this Gig
| (4) | ||
| (0) | ||
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
F 
fergus_anthony
Nigeria
Ongoing collaborationGreat experience working with Joevic again. He already helped me with a Shopify/eBay sync issue before, and I came back because the previous experience was smooth. This time he reviewed my existing automation setup and helped identify areas where the workflow could be improved. Communication was excellent...
$50
Price
2 days
Duration
Helpful?F fergus_anthony
Nigeria
Ongoing collaborationExactly what we needed and delivered quickly. Joevic understood the issue, and fixed our Shopify/eBay sync perfectly. Will definitely work with him again!
$50
Price
3 days
Duration
J 
Seller's Response
Helpful?M 
mark_p25
Nigeria
Ongoing collaborationGreat experience working with Joevic again. He helped identify and fix an inventory sync issue between my Shopify and eBay stores and the work was completed on time, and everything is running smoothly now. Thank you. Would definitely work with him again.
$50
Price
3 days
Duration
Helpful?M mark_p25
Nigeria
Ongoing collaborationGreat experience working with this Joevic. He understands Shopify eBay variant sync issue and explained everything clearly. The fix was done fast, tested properly. Communication was smooth throughout. Highly recommend!
$50
Price
1 day
Duration
Helpful?
Reviews
4 reviews for this Gig
| (4) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
F fergus_anthony
Nigeria
Ongoing collaborationGreat experience working with Joevic again. He already helped me with a Shopify/eBay sync issue before, and I came back because the previous experience was smooth. This time he reviewed my existing automation setup and helped identify areas where the workflow could be improved. Communication was excellent...
$50
Price
2 days
Duration
Helpful?F fergus_anthony
Nigeria
Ongoing collaborationExactly what we needed and delivered quickly. Joevic understood the issue, and fixed our Shopify/eBay sync perfectly. Will definitely work with him again!
$50
Price
3 days
Duration
J Seller's Response
Helpful?M mark_p25
Nigeria
Ongoing collaborationGreat experience working with Joevic again. He helped identify and fix an inventory sync issue between my Shopify and eBay stores and the work was completed on time, and everything is running smoothly now. Thank you. Would definitely work with him again.
$50
Price
3 days
Duration
Helpful?M mark_p25
Nigeria
Ongoing collaborationGreat experience working with this Joevic. He understands Shopify eBay variant sync issue and explained everything clearly. The fix was done fast, tested properly. Communication was smooth throughout. Highly recommend!
$50
Price
1 day
Duration
Helpful?
