Sebastian K is a German Shopify developer and Fiverr Pro seller with more than 16 years in front-end work. His gig covers theme tweaks, custom sections and larger custom builds for existing Shopify stores, starting at $165.
Sebastian K
Shopify expert and senior front-end developer
- Fiverr Pro
- 800+ orders
- Speaks German, English, Spanish
Why Sebastian stands out
Shopify customization is a category where a cheap fix can quietly break a live store. Sebastian works only on Shopify and has done so for years: he joined Fiverr in 2019, has completed more than 800 orders, and holds a 5.0 seller rating across 585 reviews. He describes a Munich agency background and 16+ years of front-end development, and the gig covers Liquid, HTML, CSS and JavaScript work on existing themes, from small tweaks to custom sections, cart logic and product page changes.
- Near-perfect record. 257 of the 263 reviews on this gig are five stars and the other 6 are four stars. Buyers rate communication and quality of delivery at 5.0, and value for money at 4.9.
- Safe way of working. According to his FAQ, all changes are made on a duplicated, unpublished copy of your theme, so the live store stays online while he works.
- Built to be edited. Custom sections are made to work in the Shopify Theme Editor, so you can change text, images and products later without touching code.
- Scope before price. Every package is confirmed before work starts, and recent reviewers mention that he suggested improvements they had not thought of.
Best for: store owners who already run on Shopify and need a specific change done properly: a layout fix, a new section, cart or product page logic, or matching a design from Figma or a reference store.
Maybe not for you if: your site is not on Shopify (he works on Shopify only), you need a very small fix on a tight budget (the entry package starts at $165, higher than many budget gigs), or you want a fixed number of revisions listed upfront. The packages do not state revision counts; the scope is agreed per project instead.
Services and pricing
All three packages include responsive design and e-commerce functionality. They differ in how much work is involved, from a quick edit to a major theme customization. You send a request first, and the scope is confirmed before the order starts.
Basic
$165
Quick theme tweak
- Small CSS, text or Liquid edit
- Responsive design
- Scope confirmed before start
Standard
$425
Custom section or feature
- One custom section or feature
- Theme Editor ready
- 1 plugin or extension installed
Premium
$895
Advanced custom build
- Complex feature or multi-area work
- Content upload
- 2 plugins or extensions installed
Not sure which package fits? The seller asks for your requirements, store access and any design references first, then confirms the scope. Custom offers are also available.
Prices on Fiverr as of Oct 6, 2026. Check the live gig for current offers.
What buyers say on Fiverr
263 reviews on this gig · Value for money 4.9
“Sebastian knew exactly what we wanted and implemented every request that we had. He even suggested improvements to our Shopify store we didn't consider.”
“Sebastian fixed a complicated problem we had with google ads and gave a full and clear explanation in his report.”
“Sorted our problem out immediately.”
Short excerpts from public Fiverr reviews, as of Oct 6, 2026.
FAQ
How much does Sebastian charge for Shopify work?
Packages start at $165 for a quick theme tweak, $425 for one custom section or feature, and $895 for an advanced custom build (prices as of Oct 6, 2026). Larger projects can be quoted with a custom offer.
Will my store stay online while he works on it?
Yes. He states that all changes are made on a duplicated, unpublished copy of your live theme, and the new version is published only after testing and your approval.
Can I edit the new sections myself later?
Yes. Custom sections are built for the Shopify Theme Editor, so you can update text, images and products without code. He also offers a short walkthrough after delivery if needed.
Is it safe to hire Sebastian on Fiverr?
Fiverr holds your payment until you approve the delivery. Sebastian is a Fiverr Pro seller with more than 800 completed orders and a 5.0 rating across 585 reviews. As with any developer, give store access through a collaborator account rather than sharing your own login.
Ready to work with Sebastian?
Open the gig, describe the change you need and send a request. He usually replies within an hour.
View Sebastian's profile on FiverrYou will be taken to Fiverr. This page may contain affiliate links; see the disclosure for details.
