Custom OpenCart development, built the way your business works.
Features, modules and integrations engineered on OpenCart’s own architecture — upgrade-safe, tested and documented. Priced per project at the launch rate.
The friction store owners bring us — and what we turn it into.
- BeforeAfterOrders re-typed into the ERP by handOrders, stock and invoices sync automatically
- BeforeAfterLocal payment method isn’t supportedNative gateway module with 3D Secure & refunds
- BeforeAfterMarketplace listings updated one by oneCatalog and prices pushed on every change
- BeforeAfterCheckout loses customers at step 4Single-page checkout tuned to your rules
- BeforeAfterReports exported to Excel every MondayLive dashboards inside OpenCart admin
- BeforeAfterEvery update breaks a customized fileEvent-based modules that survive upgrades
From a single module to a complete backend.
Custom feature development
New functionality on storefront or admin, designed for your workflow.
Custom modules
OCMOD and event-driven extensions — installable, versioned, upgrade-safe.
API integrations
REST/SOAP connections to any third-party system your business relies on.
Payment gateway integrations
Local and international gateways, wallets, installments and refunds.
ERP integrations
Two-way sync of products, stock, orders, customers and invoices.
Marketplace integrations
Catalog, price and order sync with the marketplaces you sell on.
Custom checkout solutions
Redesigned flows, B2B rules, address logic, shipping calculators.
Database & backend
Schema design, migrations, heavy queries, queues and cron jobs.
Connect OpenCart to the marketplaces and accounting systems you already use.
Two-way sync of products, stock, prices, orders and invoices — built as upgrade-safe modules. Pick a system to request an integration quote.
Marketplaces
Accounting & ERP
The stack we work in every day.
Everything listed here has shipped to production OpenCart stores we support.
OpenCart
- OpenCart 4.x
- OpenCart 3.0.x
- OpenCart 2.3
- OCMOD
- Events
- Twig
- Multi-store
Backend
- PHP 8
- MySQL / MariaDB
- Redis
- Composer
- REST API
- Cron & queues
- Git
Payments
- iyzico
- PayTR
- Stripe
- PayPal
- Adyen
- Bank virtual POS
- 3D Secure
Integrations
- SAP / Logo / Mikro
- Netsis
- Trendyol
- Amazon
- Hepsiburada
- Shipping APIs
- CRM & e-invoice
Predictable delivery, from brief to production.
The same disciplined process whether the job is four hours or four months.
- 01
Requirements & analysis
We review your store, version, extensions and business rules; open questions are resolved up front.
Written scope - 02
Estimate & approval
You receive an hourly effort estimate and a timeline. Work starts only when you approve.
Approved quote - 03
Development on staging
Built in version control on a staging copy of your store — your live site is never a test bed.
Staging preview - 04
Testing & review
Functional tests, edge cases, payment sandbox runs. You review and sign off.
Test report - 05
Deployment & handover
Zero-downtime deployment, documentation and a support window after launch.
Docs + support
Get your scope and your price in this chat.
Describe what you need. Our specialist asks the right questions, breaks the work into tasks and gives you an hourly estimate — $10/hour, VAT excluded, no packages for hourly work and no minimum.
Berk Avcı
Principal Backend Engineer · OpenCart development
- OpenCart 3.x and 4.x module development
- OCMOD and event-based extensions that survive updates
- REST, GraphQL and gRPC API design
- payment, ERP, marketplace and shipping integrations
- custom checkout flows, B2B rules and admin endpoints
- code review and architecture decision records
Hi, I'm Berk. I scope OpenCart theme and module work and can put a quote together in this chat. What would you like built?
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Prefer WhatsApp? Continue thereHourly and transparent — you approve the estimate first.
Development is billed per hour at the campaign rate. You approve an estimate before we write a line of code; time is tracked per task and reported. The final cost depends on the complexity of the work — development is never sold as a package.
- Standard development rate
- $33 / hour
- Launch campaign rate
- $10 / hour
- Estimate before start
- Always
- Minimum commitment
- None
Development questions, answered.
No. We build with OCMOD and OpenCart’s event system rather than editing core files, so updates don’t overwrite our work.
Have a feature or integration in mind?
Describe it in a few sentences. An engineer reviews it and returns an estimate — no obligation.