I will customize your shopify theme and write custom liquid code

J
janko3108
J
janko3108
Janko Leskovac

About this gig

Need a change your Shopify theme can't do out of the box? I build and maintain Shopify stores for Scandinavian brands at COI Agency, and I can do the same for yours.


What I can do:

  • Fix layout and theme bugs, on mobile and desktop
  • Build custom sections and blocks you can edit in the theme editor
  • Customize product, collection and cart pages
  • Add features with Liquid, JavaScript and metafields

How it works: you give me collaborator access (never your password), I work on a copy of your live theme, and you preview everything before it goes live.


Not sure which package fits? Message me before ordering and I'll send a custom offer.

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 Janko Leskovac

Janko Leskovac

Shopify and full stack web developer

  • FromCroatia
  • Member sinceApr 2026
  • Languages

    English, Croatian, German, Spanish
I'm a full-stack developer in Zagreb, Croatia. At COI Agency I build and maintain Shopify stores for Scandinavian brands. On Fiverr I customize Shopify themes and write custom Liquid code, speed up slow stores, and build fast, search-friendly websites for small businesses. I take a project from the first plan to launch and explain each step in plain English. I speak English and Croatian natively and German conversationally. Message me with what you need, and I'll reply with a clear plan, a price and a timeline.

My Portfolio

Other Website Maintenance Services I Offer