BigCommerce Development — alignPX
BigCommerce Development Partner

Enterprise-grade stores built to scale, not just launch.

We design, build and maintain custom BigCommerce stores for growing brands and enterprise catalogs — from storefront development and headless builds to multi-store setups and long-term engineering support.

60+BigCommerce stores shipped
4.9/5Average client rating
5 yrsBuilding on BigCommerce
yourstore.mybigcommerce.com
API uptime: 99.99%
Checkout conversion +35%
Built and integrated with the tools serious BigCommerce stores run on
BigCommerce Stencil
Headless / Catalyst
GraphQL Storefront API
Klaviyo
Avalara
ShipperHQ
B2B Edition
Multi-Storefront
Why AlignPX

An engineering team behind your storefront, not a config-only shop.

Anyone can set up a default Stencil theme. We build the storefront, the API layer and the integrations that make it actually convert at scale — then stay on to keep it running.

Custom-built, always

No default-theme shortcuts. Every store is coded to your catalog complexity and your funnel, not bent to fit a template.

Direct engineering access

You talk to the developer building your store — not a rotating account manager relaying messages.

Performance-first builds

Every store is built and audited against Core Web Vitals — critical when your catalog runs into the thousands of SKUs.

Support after launch

Stores need upkeep — API changes, seasonal catalogs, fixes. We stay on as your ongoing dev partner.

What We Do

Our BigCommerce Development Services

From a first storefront to a full headless migration, each engagement is scoped to what your business actually needs next.

01

Store Setup

Ground-up BigCommerce builds designed around your catalog, your brand and your customer’s path to checkout.

02

Stencil Theme Development

Bespoke Stencil themes, or deep customization of an existing one, built in clean, maintainable code.

03

Migration

Moving from Shopify, WooCommerce or Magento to BigCommerce — with products, orders and SEO intact.

04

Headless Commerce

Decoupled storefronts on the GraphQL Storefront API — for brands that need full control over the frontend.

05

B2B & Multi-Storefront

Custom pricing tiers, quoting workflows and multi-storefront setups for wholesale and enterprise merchants.

06

Ongoing Maintenance

A dev partner on retainer for API updates, fixes, app conflicts and the small things that pile up post-launch.

Scope

What’s included in every build

No matter the package, these are the fundamentals we never skip.

Discovery & UX audit

We map your funnel and customer journey before writing a line of code.

Custom Stencil theme build

Hand-coded storefront templates — flexible, and easy for your team to edit.

Mobile-first responsive design

Built and tested for the device most of your customers actually buy on.

App & API integrations

Tax, shipping, ERP and payment integrations wired in and tested, not just installed.

Speed & Core Web Vitals optimization

Image, script and asset optimization so the store loads fast even with large catalogs.

Launch support & handover docs

A 30-day post-launch window plus documentation for your internal team.

Sample project scope

Discovery & UX auditWeek 1
Theme & template buildWeek 2–4
API & app integrationsWeek 4
QA across devicesWeek 5
Launch & handoverWeek 5
Post-launch support30 days
How We Work

Development Process

A fixed sequence, so you always know what’s happening and what comes next.

01

Discovery

We learn your catalog, customers and goals, then audit your current store or systems if you have them.

Kickoff call + audit
02

Design

Wireframes and visual design for key templates — home, category, product and cart — reviewed with you before build.

Figma walkthroughs
03

Build

Stencil theme development, API integrations and any custom functionality, built in weekly milestones you can track.

Sandbox store access
04

QA & Launch

Cross-device and cross-browser testing, checkout flow verification, then a scheduled go-live.

Pre-launch checklist
05

Support

A 30-day post-launch window, then optional ongoing maintenance for updates and new features.

Retainer available
Selected Work

Portfolio & Case Studies

A few of the storefronts we’ve designed, built and taken through launch.

Industrial Supply Ferro & Vale

B2B storefront with custom pricing tiers

Built a wholesale portal with quote workflows on top of a 12,000-SKU catalog.

+41%Repeat order rate
2.1sLoad time
Consumer Electronics Northline Audio

Headless storefront on the Storefront API

Decoupled frontend for full control over product configurators and speed.

2.4xMobile revenue
96PageSpeed score
Outdoor & Sporting Goods Alder Trail Co.

Magento to BigCommerce migration

Migrated 6,500+ SKUs and order history with zero SEO ranking loss.

0SEO rank drop
-29%Cart abandonment
The Platform

Why we build on BigCommerce

BigCommerce handles hosting, security and infrastructure at enterprise scale, so we can spend the budget on what actually moves your metrics — design, speed and conversion.

  • No transaction fees, so revenue growth doesn’t come with rising platform costs.
  • Native multi-storefront and B2B tools built into the platform, not bolted on.
  • Open SaaS architecture — full API access without a locked-down theme engine.
  • Scales from a mid-size catalog to enterprise volume on the same platform.
60K+Businesses run on BigCommerce
99.99%Platform uptime
0%Transaction fees
1,000+Apps in the marketplace
Questions

Frequently Asked Questions

Everything merchants usually ask before starting a project.

Most custom stores take 4–6 weeks from discovery to launch, depending on catalog size, number of templates and integrations involved.

Both. We can customize a licensed theme you already own, or build fully custom from a blank Stencil base — we’ll recommend based on your budget and timeline.

Yes — products, customers, order history and redirects are all part of a standard migration, so your SEO rankings carry over.

Every project includes 30 days of post-launch support. After that, most clients move to a monthly maintenance retainer for updates and new features.

Yes — on the GraphQL Storefront API, including Catalyst and custom Next.js frontends when full frontend control is a requirement.

Yes — including custom pricing tiers, quoting workflows, buyer portals and multi-storefront / multi-currency configurations.

Let’s build your BigCommerce store.

Tell us about your product and timeline — we’ll get back to you within one business day with next steps.

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