E-Commerce Development
Custom e-commerce platforms engineered for conversion - headless storefronts, PWA, PCI-compliant payments, and third-party integrations that scale with your business.
We design, build, and scale custom e-commerce platforms that convert browsers into buyers — covering storefront architecture, payment integration, mobile experience, and ongoing performance optimisation, all under one engineering team.
Why e-commerce engineering quality matters
A 100-millisecond delay in page load time can reduce conversions by 7%. Performance is not a feature — it is revenue.— Deloitte Digital / Google Research
What we deliver
Custom storefront development
Pixel-accurate, brand-aligned storefronts built on React, Next.js, or headless CMS — not constrained by theme limits. Every UI decision is conversion-tested.
Mobile-first & PWA
Progressive Web Apps that behave like native apps — offline browsing, push notifications, and sub-second load times — capturing the 59% of buyers who shop on smartphones.
Payment & checkout engineering
Stripe, Razorpay, PayPal, and regional gateway integration with one-click checkout, saved cards, and PCI DSS compliance built in — not bolted on.
Headless & composable commerce
Decouple your frontend from the backend to deploy independently, iterate faster, and push content to any channel — web, app, kiosk, or voice.
Platform migration & re-platforming
Move from WooCommerce, Magento 1, or legacy custom stores to Shopify Plus, Medusa.js, or a fully bespoke stack — zero downtime, full data integrity.
Third-party integrations
ERP, CRM, WMS, shipping carriers, loyalty engines, and analytics platforms connected via REST or GraphQL APIs so your operations run as one coherent system.
How a headless storefront fits together
Decoupling the storefront from the commerce engine is what makes a store fast, flexible, and ready for any channel. Here is the architecture behind the platforms we build:
Headless commerce architecture — shopper to fulfilment
How we work
Discover
We audit your existing stack, catalogue your product edge cases, map buyer journeys, and set conversion baselines before writing a single line of code.
Design
UX wireframes and high-fidelity prototypes validated against your target audience. Every screen is designed for speed, accessibility (WCAG 2.1 AA), and mobile first.
Build
Iterative sprints with weekly demos. API-first architecture, automated testing at unit and integration level, and feature flags so you can release on your own schedule.
Launch
Staged rollout with canary traffic, real-user monitoring from day one, and a structured hypercare window covering the first 30 days post-go-live.
Optimise
Monthly performance reviews, A/B test cycles on checkout and product-page layouts, Core Web Vitals tracking, and capacity planning ahead of peak seasons.
What sets our stores apart
| Capability | Typical agency | ELIVTECH |
|---|---|---|
| Custom architecture (no theme lock-in) | — | |
| Headless / composable commerce | — | |
| PWA with offline support | — | |
| Core Web Vitals optimisation (LCP < 2.5s) | — | |
| PCI DSS-compliant payment integration | Partial | |
| ERP / WMS / CRM integration | Partial | |
| Post-launch CRO and A/B testing | — | |
| Zero-downtime migrations | — |
From legacy store to conversion machine
- Slow pages that bleed conversions on every visit
- Checkout friction driving cart abandonment toward 70%
- Bolted-on integrations that break when the catalogue grows
- Every design change fighting against theme constraints
- Sub-second, edge-cached pages that lift conversion
- One-click, PCI-compliant checkout that recovers lost sales
- Clean APIs to ERP, CRM, and WMS that scale with volume
- A storefront you can restyle and extend without limits
The uplift re-engineering delivers
Typical uplift after platform re-engineering (illustrative range based on industry benchmarks)
Where a custom build pays for itself
- Storefronts held back by slow, rigid off-the-shelf themes
- High cart abandonment traced to a clunky, multi-step checkout
- Mobile experiences that lose the majority of shoppers who arrive on a phone
- Selling across multiple regions, currencies, and languages
- Migrating off legacy platforms without risking traffic or SEO
- Connecting the store to ERP, CRM, and warehouse systems as one operation
What this means for your business
Strip away the technology, and a well-engineered store comes down to four commercial outcomes:
More visitors become buyers
Faster pages and a frictionless checkout turn the traffic you already pay for into more completed orders — every second of speed is worth conversions.
You win the mobile majority
With 59% of online sales on smartphones, an app-like mobile experience captures revenue that a desktop-first store quietly leaves on the table.
Ready to scale and expand
A headless, API-first platform adds new markets, channels, and features as configuration — not a rebuild — so growth never means starting over.
Peace of mind at peak
PCI-compliant payments, zero-downtime deploys, and capacity planning mean your biggest sales days run smoothly instead of keeping you up at night.
Ready to build with ELIVTECH?
Tell us what you are trying to build and where you are starting from. We will come back with how we would approach it, who would work on it, and what the first few weeks would look like.
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