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E-commerce Development: Online Stores, Payments and Marketplaces

Online stores, marketplaces and checkout flows built to convert, with secure payments and integrations.

Online stores built to sell

Modern e-commerce requires far more than presenting a digital product catalog online. High-converting digital storefronts demand instant page loads, intuitive mobile checkout flows, flexible payment processing and automated back-office inventory operations. Netbii engineers custom e-commerce stores, B2B purchasing portals and multi-vendor marketplaces that provide frictionless buying experiences for your customers.

We work with digital retailers, direct-to-consumer brands and international B2B distributors to build storefronts that increase conversion rates, handle seasonal traffic spikes during sales promotions and integrate seamlessly with enterprise fulfillment networks.

Our developers focus on designing purchasing experiences that reflect your brand identity while reducing checkout friction, minimizing abandoned carts, and driving higher customer lifetime value.

Platform or custom build: what fits your business

Choosing the right e-commerce architecture depends on your product catalog complexity, operational workflows, international expansion plans and customization requirements. We help you select, architect and implement the ideal digital commerce foundation:

  • Shopify and Shopify Plus customization for brands seeking robust managed hosting, extensive app ecosystems, international multi-currency storefronts and fast launch timelines.
  • Headless e-commerce architecture pairing Next.js or React frontend storefronts with Shopify or custom backends for maximum design freedom, sub-second page loads and superior mobile conversion rates.
  • WooCommerce development for flexible WordPress content integration, custom product configuration options and complete self-hosted server control.
  • Custom Laravel e-commerce engines for complex B2B buying rules, tiered wholesale pricing, multi-currency catalogs and custom product builders.
  • Multi-vendor marketplace platforms enabling multiple independent sellers to list products, manage inventory and receive automated commission payout splits.

Payments, shipping and the systems behind the store

A successful online store relies heavily on backend automation to manage inventory counts and order fulfillment without manual data entry errors. We integrate global payment processors like Stripe, PayPal, Apple Pay, Google Pay and specialized Buy Now Pay Later (BNPL) services like Klarna.

We connect your storefront directly to warehouse management systems (WMS), shipping carrier APIs (FedEx, UPS, DHL) and Enterprise Resource Planning (ERP) software to ensure stock availability updates automatically in real time and shipping tracking notifications reach customers immediately after fulfillment.

By streamlining order workflows between your store and your physical fulfillment teams, we help you lower operational overhead while delivering a fast, reliable order delivery experience to your shoppers.

Speed and conversion optimisation

Page speed directly impacts e-commerce revenue and customer acquisition costs on paid advertising channels. We optimize image assets, implement aggressive CDN edge caching and streamline checkout scripts to deliver lightning-fast mobile performance. We also set up conversion tracking, abandoned cart recovery automated email flows and custom analytics dashboards to help your team monitor store performance and growth continuously.

We provide ongoing store optimization, A/B testing support, and security monitoring to ensure your commerce platform scales efficiently as your catalog and order volume expand.

Omnichannel synchronisation and international expansion

Scaling an e-commerce brand internationally requires managing multi-region currencies, local payment methods, tax calculation rules and localized product descriptions. We engineer multi-storefront architectures that sync inventory automatically across retail physical stores, online web platforms and marketplace channels like Amazon and eBay. By implementing automated currency conversion and localized shipping calculators, Netbii prepares your digital store for effortless global market entry.

How we work

A simple, predictable delivery process

Five stages, each with a clear outcome you can review before we move on.

  1. 01

    Discovery

    We clarify goals, users and constraints, then turn them into a scoped plan with a fixed estimate or a team proposal.

  2. 02

    Design

    Wireframes and interactive prototypes let you see and test the product before production code is written.

  3. 03

    Build

    Two-week sprints with a working demo at the end of each one, so you can give feedback early and often.

  4. 04

    Test

    Automated and manual testing across devices and browsers, plus security and performance checks before release.

  5. 05

    Launch & Support

    We deploy, monitor and hand over documentation, then keep improving the product with you.

Engagement models

Choose the way you want to work with us

Every engagement starts with a free discovery call, so you can pick the model that fits your budget and roadmap.

Fixed-price project

A defined scope, timeline and price agreed up front, with milestones you approve along the way.

Best for: Well-defined projects, MVPs and website builds

Dedicated team

Engineers, designers and QA working full-time on your product, managed by you or by us.

Best for: Long-term products and growing startups

Time & materials

Pay for the hours worked, with weekly reports and the freedom to change priorities as you learn.

Best for: Evolving requirements and ongoing improvements

FAQ

E-commerce Solutions questions

Should I use Shopify or a custom e-commerce build?
Shopify is ideal for standard retail brands seeking fast setup and low infrastructure maintenance. Custom builds or headless architectures are recommended when you require unique product configurators, complex B2B purchasing rules, or specialized inventory integrations.
Can you migrate my existing store without losing data or rankings?
Yes. We carefully migrate product catalogs, customer records, order histories and URL structures while setting up 301 redirects to preserve your search engine rankings and domain authority.
Which payment gateways can you integrate?
We integrate all major payment processors including Stripe, PayPal, Apple Pay, Google Pay, Authorize.Net and Klarna, ensuring secure PCI-compliant transaction processing.
Can you build a multi-vendor marketplace?
Yes. We develop custom multi-vendor platforms with vendor registration portals, split payment payouts, seller commission management and centralized admin moderation controls.

Start a project

Tell us what you want to build

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  • Free, no-obligation estimate
  • NDA available on request
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