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I will do shopify custom coding shopify bug fix and custom theme development
Jan Frey
About this gig
Is your Shopify store affected by bugs, broken sections, layout issues, or custom features you need coded? Im Jan Frey, a Shopify Developer with 8 years of experience helping businesses build, customize & improve high-performing Shopify stores.
I specialize in Shopify custom coding, Shopify bug fixes, and custom theme development, using Liquid, HTML5, CSS3, JavaScript, jQuery, JSON, and Shopifys theme architecture.
What I can help with:
- Shopify bug fixing & troubleshooting
- Custom Shopify theme development
- Shopify Liquid custom coding
- Custom sections & dynamic content
- HTML/CSS/JavaScript/JSON customization
- Homepage & product page customization
- Custom header, footer, cart & navigation
- Product page custom fields & features
- Custom fonts & styling
- Klaviyo integration & pop-ups
- Shopify theme redesign & improvements
- Mobile responsive design fixes
- Theme customization
My approach is solution-focused: I'll review your requirements, identify the issue or development need, and implement clean, responsive code tailored to your Shopify store.
Have a Shopify bug, custom feature, or theme development project? Contact Jan Frey before ordering!!!
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 Jan Frey
Jan Frey
Shopify Developer, Coding, SEO, Speed Optimization and Store Growth
- FromGermany
- Member sinceSep 2026
Languages
English, German, Spanish, French, Italian
I’m a skilled Shopify Developer and Coach helping brands build, improve, and automate better eCommerce experiences. I combine clean coding, modern frontend development, and practical Shopify strategy to turn stores into faster, more scalable, and easier-to-manage businesses.
My expertise includes Shopify Coding, Frontend Development, SEO, Product Upload, Speed Optimization, Store Maintenance, Theme Customization, and ongoing technical support.
Whether you’re launching, fixing, optimizing, or scaling your Shopify store, I’m here to help you build smarter and automate more of your brand.
Other Website Maintenance Services I Offer
FAQ
Can you fix bugs in my existing Shopify theme?
Yes. I can troubleshoot and fix theme errors, broken sections, layout issues, responsive problems, Liquid errors, and other Shopify coding issues.
Can you add custom features or sections to my Shopify store?
Yes. I can develop custom Shopify sections, product features, cart customizations, headers, footers, dynamic content, and other theme functionality using Liquid, HTML, CSS, JavaScript, and JSON.
Can you develop or customize a Shopify theme?
Absolutely. I can customize your existing theme or develop custom theme features based on your design, functionality, and store requirements.
Should I contact you before placing an order?
Yes. Please contact me first with your requirements, screenshots, design, or reference website. This helps me understand the project scope and recommend the right package.
