I will fix bugs and integrate apis in your shopify app


About this gig
Need help fixing bugs or connecting APIs in your Shopify app?
I troubleshoot and improve Shopify apps built with React, Node.js, TypeScript, and Shopify APIs.
I can help with:
- Fixing frontend, backend, embedded app, and Shopify API issues
- Third-party API integrations, webhooks, authentication, and data syncs
- Product, cart, discount, checkout, and admin workflow bugs
- Debugging app extensions, performance issues, and deployment problems
- Refactoring React and Node.js code for stability and maintainability
Please message me before ordering with your app URL, bug details, steps to reproduce, error messages, and relevant API or repository access.
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 Billy.ND
Software Engineer
- FromVietnam
- Member sinceAug 2026
- Avg. response time1 hour
Languages
English, Vietnamese

