Most apps fail not because of their interface — but because they weren’t built for the way people actually use them. Mobile solutions that ignore the real environment — unstable networks, varied devices, changing roles — fall apart when it counts.
Product catalogs are decentralized, causing outdated listings on channels
Carts are left behind due to broken or slow payment flows
Fulfillment does not succeed if shipping or inventory rules are complex.
At Convertec, we architect e-commerce website development to reflect how your business actually sells. From catalog structure to checkout flow, we ensure every part of the system works together — so you can scale seamlessly, sell confidently, and deliver reliably.
| What You Asked For | What We Actually Find |
|---|---|
 | |
| |
| |
Most e-commerce initiatives begin with theme selection, plugin selection, or platform selection. But the actual issues arise later on — when inventory isn't kept current, tax regulations render checkout non-functional, or backend infrastructure can't scale. That's why we listen for selling systems, not merely selling screens.
We start at Convertec by outlining operations before we even design things. We discover what your people do manually, what holds up fulfillment, and where systems aren't connected well. Then we build digital commerce systems that align with the way you actually sell — in multiple spaces, on multiple devices, and across multiple channels.
| Where Most Start | What Breaks Later | Where We Begin |
|---|---|---|
| | |
| | |
| | |
Most e-commerce platforms are built in siloed components. Business teams have difficulty creating reports. IT does integrations, and designers build the storefront. This is a broken system that causes data mismatch, platform issues, and poor operations.
We begin with a systems-first approach to building e-commerce. This implies that technology, product logic, and sales operations coexist quite harmoniously from the outset. Every solution we deliver is engineered to minimize handovers, eliminate operations problems, and scale quite easily as business needs expand.
We develop high-performance storefronts that aren’t just visually appealing — they’re engineered for conversions, accessibility, and speed. From mobile-first interfaces to lightning-fast loading, every screen is optimized to drive engagement and sales.
Build storefronts using Next.js, Vue Storefront, or Astro for dynamic rendering and mobile-first design
Apply core web vitals optimization: lazy loading, image compression, and prefetching logic
Integrate A/B testing and personalization engines (like VWO or Google Optimize) for data-backed UX improvement
Checkout is where most revenue is lost — and most complexity is hidden. We build checkout logic that handles real-world scenarios: multiple tax rules, currency conversions, fulfillment limitations, and custom discount engines.
Architect custom checkout systems using React Hook Forms or Formik for form validation and real-time logic
Integrate regional payment gateways (Stripe, Razorpay, PayPal, Adyen) with tokenization and 3D Secure
Implement multi-currency and tax-calculation modules using TaxJar, Avalara, or custom rate APIs
Enable one-click checkout and digital wallets (Apple Pay, Google Pay) with PCI-compliant SDKs
Behind every seamless order is a robust system that handles inventory, order processing, and delivery flow. We create operational cores that power your business — resilient, auditable, and scalable.
Implement microservice-based order orchestration using Node.js/NestJS, Docker, and RabbitMQ for clean separation and scaling
Sync stock in real-time using webhooks or message queues (Kafka, AWS EventBridge) with conflict resolution logic
Connect with WMS/ERP systems (Zoho, SAP, NetSuite) using RESTful or GraphQL adapters with authentication middleware
Support multi-warehouse logic, with geolocation-based fulfillment, split shipping, and delayed delivery rules
We choose our e-commerce stacks based on how well they support transaction scale, personalization, product complexity, and operational stability. Every component plays a role — from customer-facing speed to backend orchestration and fulfillment.
Use when: The storefront needs to evolve with changing business models — from single-brand D2C to B2B, marketplace, or hybrid models.
Medusa.js
Vendure
Strapi
Sanity.io
Headless-first architecture supports frontend freedom and backend reliability
Plug-in extensibility for promotions, product types, and custom workflows
Works with REST, GraphQL, or webhooks — ideal for API-centric businesses
Use when: Performance directly impacts conversions, bounce rate, and SEO rankings — especially on mobile and first load.
Next.js
Nuxt.js
Cloudflare Pages / Vercel
Tailwind CSS
Server-side rendering (SSR) and static regeneration for instant load
Integrated route optimization and prefetching for seamless page switching
Works flawlessly with headless CMS and e-commerce APIs
Use when: Orders span multiple warehouses, tax zones, and carriers — and need intelligent routing without manual overhead.
Stripe + Stripe Tax / Adyen
ShipStation or EasyPost APIs
Algolia for product search
Kafka + Redis Streams for order/state sync
A single API for payments, stopping fraud, and calculating taxes.
Real-time updates between delivery partners, order status, and stock.
Asynchronous handling of messages prevents loss of data under heavy loads
We’re here to talk through your priorities and help move things from intent to impact.
It is based on store complexity, payment, shipping, ERP integrations, and custom feature needs.
If you need channel flexibility (ecommerce web design, mobile, POS) or need greater control over user experience, use headless.
We start by establishing your product hierarchy, checkout experience, and fulfillment process. We construct the store front, construct back-end functionality (price, inventory, tax), add third-party functionality, and test through real-world scenarios before launch.
A basic MVP custom online store can be implemented in 4 to 6 weeks. If it is feature-intensive such as having multiple warehouses, subscriptions, or advanced analytics, it will take longer.
Shopify supports custom features through its app ecosystem, APIs, and Liquid templating. We extend the core platform using private apps, script editor (for Shopify Plus), and theme customizations — enabling logic tailored to your checkout flow, pricing models, or fulfillment process.
