01Setup
Store Build & Setup
OpenCart installation, configuration, and theme setup , payment gateways, shipping rules, and tax settings configured correctly from the start.
OpenCart Development
OpenCart development for stores that need custom modules and real engineering depth.
Multivendor platforms, custom payment and wallet systems, bespoke modules, version upgrades, and the mobile app that runs alongside the store.
CapabilitiesCustom ModulesMultivendorPayment GatewaysWallet SystemsVersion UpgradesMobile Apps
What we build
Six services across the OpenCart lifecycle.
02Engineering
Custom Module Development
Bespoke OpenCart modules built from scratch for functionality no existing extension covers , quote systems, distributor modules, grouped product modules, product certificates.
03Multivendor
Multivendor Platform Builds
Full multivendor OpenCart platforms , vendor registration, commission structures, referral programs, and cashback and wallet systems, the kind of work behind Paykini.
04Payments
Payment Gateway Integration
Connecting an OpenCart store to the right payment gateway , including custom gateway modules like the one built for Stax Payments.
05Upgrade
Version Upgrade & Migration
Upgrading an existing OpenCart store to the latest version without data loss, or migrating from another platform to OpenCart.
06Support
Ongoing Maintenance & Support
Keeping an OpenCart store updated, secure, and performing well over time , BT Lab Systems ran for 8 years on Tecziq maintenance.
Case studies
OpenCart, built and delivered.
Lead case
Paykini
A Malaysian bill payment and multivendor ecommerce platform built on OpenCart. Tecziq built a multilayer referral program, cashback on bill payments, an in-platform wallet system for storing and spending cashback, a full multivendor module allowing vendors to register and list products, and both iOS and Android apps alongside the platform. Maintained for 3 years, then handed over to the client.
MultivendorCashback WalletReferral ProgramiOS + Android
Also built
Gbiosciences
A 9-year OpenCart engagement for a US biotech lab equipment company , four custom modules built and maintained: a quote system, distributor module, grouped product module, and product certificate module. The same client later returned for a Laravel-based inventory and EDI build.
BT Lab Systems
A second engagement with the Geno Technology group (Gbiosciences' parent company) , an OpenCart ecommerce store for benchtop laboratory equipment, built and maintained for 8 years.
Top-Notch Trophies
A Victoria, Australia-based custom trophy and awards supplier. OpenCart redesign and upgrade to the latest version. Built and handed over.
Why Tecziq
Why teams pick us for OpenCart work.
Custom module depth
Tecziq has built quote systems, distributor portals, grouped product modules, cashback wallets, and multivendor systems from scratch on OpenCart , not just installed existing extensions.
Long-term relationships
Gbiosciences ran for 9 years, BT Lab Systems for 8. Both on the same platform, both with the same team.
Complex platform builds
Paykini's bill payment, cashback wallet, referral system, and multivendor module represent the kind of OpenCart complexity most agencies won't take on.
Mobile app alongside
Tecziq built the Paykini iOS and Android apps alongside the OpenCart platform , and does the same for ecommerce stores via the Ecommerce Mobile Apps practice.
Also built: an OpenCart payment gateway module for Stax Payments , see also the WordPress plugin on the WordPress Development page.
Need a mobile app alongside your OpenCart store? See Ecommerce Mobile Apps.
Modules library
Ready-to-use OpenCart modules.
Tecziq has built and released a set of OpenCart modules you can download directly , or enquire about a customized version if your requirements go beyond what the standard module covers.
Download directly
Distributor Management
Add a distributor layer to your OpenCart store , manage distributor profiles, regions, and assignments from the admin panel.
Download ModuleProduct Highlights Section
Add a customizable highlights field to any product, visible on the product listing page to draw attention to key selling points.
Download ModuleE-Wallet & Reports
A full wallet system for your OpenCart store , customers can top up, pay via wallet, receive cashback automatically, and view all wallet transactions in one place.
Download ModulePurchase Order
Let B2B customers select Purchase Order as a payment method at checkout, entering PO details directly rather than paying by card.
Download ModuleBirthday Gift Voucher
Automatically send gift vouchers to customers on their birthday , email template, voucher amount, validity, and usage limits all managed from the admin panel.
Download ModuleGift Point Module
Reward customers with redeemable gift points on purchases , admin controls point values, eligible products, redemption rules, and remaining gift inventory.
Download ModuleLinked Options Module
Link product options so selecting one value (e.g. colour) automatically filters the available values for dependent options (e.g. size), with image and price updates.
Download ModuleAvailable on enquiry
Vtiger CRM Integration
A two-way, customized sync between OpenCart and Vtiger CRM , data stays on your servers, not routed through an intermediary. Configurable for exactly what you need to sync.
Module EnquiryIntroducer / Referral Benefit Module
A multilayer referral and cashback system , manage referral bonuses (fixed or percentage) for upline members on every downline purchase, with full reporting and automated emailers.
Module EnquiryExport & Import Module
Export your OpenCart product catalog, orders, or customer data to CSV or Excel, and import updated data back in bulk , without touching the database directly or losing existing records.
Module EnquiryImage Change on Mouse Rollover
Show an alternate product image when a customer hovers over a product thumbnail on the listing page , useful for showing a product from a second angle or in a different colour without the customer clicking through to the product page.
Module EnquiryFedEx Integration
Real-time FedEx shipping rates at checkout, label generation, and shipment tracking , connected directly to your FedEx account without a third-party middleware subscription.
Module EnquiryHubSpot Integration
Sync OpenCart customer and order data to HubSpot , new customers, order values, and purchase history flow into your CRM automatically so your marketing and sales teams work from live ecommerce data.
Module EnquirySuiteCRM Integration
A customized two-way integration between OpenCart and SuiteCRM , contacts, leads, orders, and customer data synced between the two platforms on your servers, not routed through an intermediary.
Module EnquiryQuickBooks Integration
Sync OpenCart orders and customer data to QuickBooks automatically , a one-time integration charge, not a monthly subscription, with no data passing through an intermediary server.
Module EnquiryMulti-Option Product Setting
Configure complex product option dependencies , selecting a value in one option (material, size, colour) automatically updates the available values, images, and pricing in dependent options, all managed from the admin panel.
Module EnquiryShowcasing Product Owner
Display the vendor or brand owner's details on a product page , useful for marketplace-style stores where multiple suppliers list products and customers need to know who they're buying from.
Module EnquiryDownload links are sent directly to your email after submitting your details , no account required.
Insights
Field notes from the team.
Recent articles on OpenCart development.
Ready to take the next step?
Choose how you want to start , check what's missing on your current site, or talk to our team with no commitment.
Check your Web and App readiness.
Already running a store or site? Find out what's working, what isn't, and where the quick wins are , before committing to any development work.
Check your readiness
Free 30 min tech consultation.
Tell us what you're building or fixing , we'll tell you what's realistic, what it'll take, and whether we're the right team for it. No pitch, no obligation.
Book your free call
FAQ
Frequently asked questions.
Everything you'd want to know about engaging Tecziq for OpenCart , custom modules, multivendor builds, upgrades, team setup, and pricing.
Got an OpenCart project?
Talk to the team behind Paykini, Gbiosciences, BT Lab Systems, and Top-Notch Trophies.
A 30-minute call to walk through your store, the right approach for it, and what end-to-end OpenCart delivery looks like at Tecziq.
Yes , Tecziq builds OpenCart modules from scratch when no existing extension covers what's needed. The Gbiosciences engagement alone produced four named custom modules over a 9-year relationship.
Yes , Tecziq has upgraded OpenCart stores across multiple versions without data loss. The process includes a full pre-upgrade audit, a staging environment test, and a rollback plan before anything touches the live store.
The team works on overlap hours that match your business day , daily standups via Slack, Google Meet, or your preferred tool. The team joins your standups and is available during your working hours.
Whatever your team already uses , Jira, Linear, Asana, ClickUp, Trello, Monday, GitHub Projects. The team plugs into your existing process rather than asking you to adopt ours.
We shortlist candidates from our hiring pool based on the role, skill set, and seniority you need. You interview and approve every person who joins the team , no one is assigned without your sign-off.
Direct access to the engineers building your store, plus regular reporting on sprint progress, hours, and milestones. No account manager relaying messages secondhand.
Code review, automated testing where appropriate, and QA are built into the engagement from day one , alongside cross-browser and device testing before release.
We sign an NDA and agree on scope upfront. Standard terms are a 3-month minimum engagement, with milestones defined alongside.
Pricing depends on scope, team size, and whether the engagement is fixed-scope or a dedicated team. We'll work through specifics together once we understand what you need.