Custom CS-Cart Add-on Development — Built for Your Business Logic
For over 6 years I've been developing CS-Cart modules — 100+ add-ons delivered across projects of different scale: from targeted logic tweaks to complex integrations with external systems.
I know the platform architecture from the inside — every solution is built without modifying the core, so it stays compatible with future CS-Cart updates.
I know the platform architecture from the inside — every solution is built without modifying the core, so it stays compatible with future CS-Cart updates.
Who Needs a Custom CS-Cart Add-on?
If an existing CS-Cart add-on doesn't cover your use case — or you've found one that almost works but not quite — custom development is usually the right answer.
Online stores
Stores that need functionality the CS-Cart marketplace doesn't offer — or need existing add-ons adapted to fit their specific setup.
Startups
Startups building on CS-Cart who need non-standard features from day one — without waiting for a third-party developer to ship a generic version.
Companies with an individual business process
Companies whose internal workflows — pricing logic, order routing, B2B rules — don't map to CS-Cart's defaults and require a purpose-built module.
How I Develop CS-Cart Add-ons
Every add-on I build follows CS-Cart's official extension mechanisms — hooks, events, and schemas — with no core edits. This keeps the module stable across platform updates and reduces long-term maintenance cost.
Requirements analysis
Understanding exactly what the module needs to do — and what it doesn't. Scope clarity upfront prevents scope creep later.
Designing
Architecture design: data flow, hook points, admin UI structure, and integration touch points. Planned before a line of code is written.
Development
Add-on development following CS-Cart coding standards — clean, documented, and built for maintainability.
CS-Cart Add-ons I've Built
Don't see exactly what you need? Describe your use case — there's a good chance I've solved something similar, or can adapt an existing module rather than starting from scratch.
Vendors' opening hours
Vendor Opening Hours for CS-Cart Multi-Vendor — Set individual operating hours per vendor and display live availability status in the storefront. Handles time zones, public holidays, and custom schedules. Built specifically for CS-Cart Multi-Vendor marketplaces.
CS-Cart compliance with EU Energy Compliance
EU Energy Label Compliance Add-on for CS-Cart — Automatically generates and displays product energy efficiency labels per EU Directive requirements. Data is pulled from product attributes, formatted to the correct label specification, and shown on the product page. Required for any CS-Cart store selling applicable products in the EU.
Multi-options for the product
Multi-Select Product Options for CS-Cart — Extends CS-Cart's standard options so buyers can select multiple values for a single option — multiple colors, multiple sizes, or any combination — in one order. Works without core modifications and integrates correctly with cart, inventory, and reporting.
Extended RMA add-on
Extended RMA Add-on for CS-Cart — Enhances the built-in CS-Cart return process: customers can attach photos and videos of defective or incorrect items when submitting a return request. Files are stored directly in the return record in the admin panel. Result: fewer disputes, faster refund decisions, and documented evidence for every claim.
Tax reports on orders
Tax Reporting Add-on for CS-Cart — Exports order data structured by tax rate, period, and product category. The output format is configurable per jurisdiction. Eliminates manual spreadsheet work when preparing tax filings.
Competitive price map
B2B Price Quote Generator for CS-Cart — Lets buyers select products and request a personalized commercial quote. The module generates an Excel or PDF with individual pricing based on customer group, order volume, or manual manager input. The buyer receives a ready-to-sign document — no calls, no back-and-forth.
Ready-to-use solutions in my profile on CS-Cart Marketplace
How a CS-Cart Add-on Project Works
Every project follows the same sequence. For larger add-ons, I schedule interim reviews so you can give feedback before the final delivery.
Task discussion
We discuss what the add-on needs to do, the edge cases that matter, and any constraints in your current setup.
Assessment and contract
I assess the scope and give you a fixed total price. We sign a contract before development starts — no surprises.
Development
I build the add-on using CS-Cart's native extension system. No core edits. Clean, documented code.
Testing
Full functional testing across your CS-Cart version and configuration. Bugs found here are fixed before delivery.
Delivery
You receive the installed, working add-on plus documentation explaining how it works and how to manage it.
FAQ
At an agency, your task goes through a manager, estimation, backlog, development, and review — before you see any result. Every step adds time and cost, regardless of how simple the task actually is.
With me, you work directly with the person writing the code. No queues, no handoffs. And agency turnover is real — six months from now your project might be handed to a different developer who needs to learn it from scratch.
An agency makes sense if you need a multi-person team for a long-term project. If your task is specific — a module, integration, or optimization — an experienced solo developer will get it done faster and for less.
With me, you work directly with the person writing the code. No queues, no handoffs. And agency turnover is real — six months from now your project might be handed to a different developer who needs to learn it from scratch.
An agency makes sense if you need a multi-person team for a long-term project. If your task is specific — a module, integration, or optimization — an experienced solo developer will get it done faster and for less.
Yes — and it's often faster and cheaper. If the add-on already exists but doesn't cover your specific use case, I review the existing code and give you a scoped estimate. Whether to extend or rebuild depends on the quality of the original.
In almost all cases, yes. I use only CS-Cart's standard extension points — hooks, events, and schemas — and never touch the core. Add-ons built this way survive platform updates without modification. I'll flag it if a particular integration has a known compatibility risk.
Price depends on complexity, the number of external integrations involved, and testing scope. After reviewing your requirements, I provide a fixed total — no hourly rate, no open-ended billing. As a rough guide: simple add-ons start from $100, complex integrations with external systems from $500.
Simple add-ons typically take 2–4 days. Add-ons with complex integrations or custom business logic take 1–3 weeks. Exact timelines are scoped and confirmed in the contract before work begins.
Yes. Bugs that result from my code are fixed at no charge after delivery. The warranty period and scope are defined in the contract before work begins, so there's no ambiguity about what's covered.
| | Need a Custom CS-Cart Add-on? Describe what the add-on needs to do. I'll let you know whether it's feasible, how long it would take, and what it would cost — before you commit to anything. No charge for the initial review. |
Contact me:
exikane.larionov@gmail.com
Mkr.6, bld. 50, appt. 8,
Astana, Kazakhstan
Astana, Kazakhstan
