I will develop custom wordpress website API integration, plugin development and bug fix

J
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J
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Justina J

About this gig

Need an expert WordPress developer to build custom functionality, integrate APIs, fix technical issues, or customize your website professionally?


You are in the right place.


I specialize in delivering high quality WordPress development solutions tailored for businesses, startups, eCommerce stores, SaaS platforms, blogs, and custom web projects that require performance, stability, and clean functionality.


My services include:

  • Custom WordPress website development
  • WordPress theme customization and development
  • Plugin installation, setup, and custom plugin development
  • REST API and third-party API integration
  • WordPress bug fixing and error troubleshooting
  • Custom coding and advanced functionality development
  • Webhook automation and external service integration
  • WooCommerce customization and website optimization


What you will get:

  • Clean and scalable code
  • Fast and secure website performance
  • Mobile responsive functionality
  • Professional communication and support
  • Reliable solutions built for long term use


Please contact me before placing an order so I can review your project requirements and recommend the best solution for your business.

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 Justina J

Justina J

Amazon SP API Developer Ecommerce Automation and API Integration Specialist

  • FromUnited Kingdom
  • Member sinceJun 2026
  • Avg. response time1 hour
  • Languages

    German, French, English
Hello, I'm Justina Johnson. I design and implement REST API solutions for order sync, inventory management, product listings, and reporting automation. With strong experience in ecommerce workflows and backend systems, I help sellers streamline operations, reduce manual tasks, and improve data accuracy through reliable API-driven solutions. Contact me to build or fix your Amazon SP-API integration. Focused on secure OAuth flows, AWS based architecture, and scalable ecommerce systems.