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Fiverr Pro
English
$
USD
I will develop and customize shopify themes for performance and conversion
Saabbir
About this gig
Need a reliable Shopify developer to fix, customize, or extend your theme?
I build clean, scalable, and high-performing Shopify themes using Liquid, HTML, CSS, and JavaScript.
I've worked on supplement and fashion eCommerce brands such as:
- raabvitalfood.de
- waxlondon.com
Where I helped:
- Improve page speed scores from ~50-60 to 80-95+
- Reduce unnecessary app dependency
- Optimize theme structure for faster load times
- Implement CRO-driven improvements to support higher engagement and conversion
From custom sections and advanced functionality to speed optimization and layout fixes, I deliver maintainable solutions built for long-term growth.
Clean code. Performance-focused. Revenue-aware.
Let's improve your store the right way.
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 Saabbir
Saabbir
AB Testing Expert with CRO Experience
- FromBangladesh
- Member sinceDec 2014
- Last delivery1 year
Languages
Bengali, English
✨ Optimizely Certified Experimentation Web Platform Expert ✨
and a veteran frontend engineer. I bring 8 years of experience building high-quality, performant websites and apps using modern tools like React and Shopify.
In the past 3 years, I’ve specialized in CRO and A/B testing, helping e-commerce sites overcome user friction and drive revenue growth through targeted optimization.
FAQ
What do you need to get started?
I’ll need your Shopify store URL, collaborator access, a clear description of the task, and any design references (if applicable). For complex features, detailed requirements help ensure accurate implementation.
Do you work with Shopify 2.0 themes?
Yes. I work with both Shopify 2.0 and older themes. I can build custom sections, modify existing layouts, and extend theme functionality using clean Liquid code and JSON templates.
Can you improve my store’s page speed?
Yes. I optimize theme structure, remove unnecessary scripts, reduce app bloat, and improve performance metrics such as Lighthouse score and Core Web Vitals wherever possible.
Do you provide CRO or conversion improvements?
Yes. With experience in A/B testing and CRO, I implement improvements that support better user flow, clarity, and conversion performance, not just visual edits.
Do you use apps or custom code?
Whenever possible, I prefer clean custom implementation over heavy apps to keep your store fast, maintainable, and scalable.
