BigCommerce Development Services

BigCommerce development that
ships on time and scales from day one

From full-store builds to complex API integrations, your BigCommerce project gets a dedicated team, a fixed scope, and a launch date you can plan around.

BigCommerce Certified Partner
Stores live in 8 to 16 weeks
QA-signed launch process
Web developer focused on building a custom BigCommerce storefront, laptop displaying store admin panel and product grid
Why most development projects stall

Most builds die in the gap between spec and launch

The old way
  • Launch dates that slip every sprint

    Scope creep, re-estimates, and "almost done" replies eat your runway before revenue starts.

  • Specialists who know BigCommerce end to end

    Developers learning Stencil, the Catalog application programming interface, and B2B Edition on your budget and your clock.

  • Performance and SEO bolted on after launch

    Core Web Vitals, canonical structure, and mobile speed treated as post-launch cleanup, not foundations.

  • Handover with no documentation

    Your team inherits a store they cannot maintain or extend without going back to the same agency.

With Redefine
  • A fixed go-live milestone with weekly reviews

    Sprints mapped to your launch date from day one. Every stakeholder sees live progress in a shared project tracker.

  • Specialists with platform-native depth

    Separate paths for build, app, B2B, headless, and optimization. Each project gets developers who already know the surface area.

  • Performance baselines built into the spec

    Page speed targets, SEO URL structure, and mobile experience defined before code starts.

  • Full documentation handed to your team

    Code comments, deployment guides, and admin training sessions included in every project. Your team owns the store.

Founders

A store that opens to paying customers, not to a list of post-launch tickets. Your BigCommerce website development project ships with conversion architecture, not just design.

Ecommerce Directors

Integrations, catalog rules, and checkout logic that match your operations playbook, not a template. Your BigCommerce developers work from your requirements, not a starter theme.

Chief Technology Officers

Clean API architecture, documented integrations, and a codebase your team can maintain. No technical debt twelve months from now.

How a project runs

Watch your build progress in real time

Every BigCommerce project runs on a live tracker. See sprint status, the deployment pipeline, and store performance the day you onboard. You always know where your build stands.

Project Tracker: Redefine and Your Store
Sprint 4 of 6
Checkout and integrations milestone
Live build environment
Deployment readiness78%
In Progress
DevCustom checkout fieldsCompletion: 2 days
APIERP order syncCompletion: 3 days
Review
QAMobile cart flowAwaiting sign-off
QASpeed auditLargest Contentful Paint: 1.4s
Done
DoneStencil theme buildShipped Sprint 2
DoneCatalog import and rules4,200 SKUs live
Stock keeping units migrated
0
Integrations live
0
Days to go-live
0
Code review
Open pull requests3 open
feat/checkout-fields
Review
fix/erp-sync-payload
Draft
perf/lcp-image-opt
Merged
Recent activity
Staging deploy: Sprint 4 passed QA gate
ERP webhook endpoint documented
Weekly review scheduled: Thursday 10 AM
4,200 SKUs migrated and validated
App and API development

What your BigCommerce build includes

Every project is scoped to your catalog, your operations stack, and your growth targets. Here are the six delivery areas your team can expect.

Custom theme development

A Stencil theme built to your brand with mobile-first layout, fast Largest Contentful Paint, and accessible components. No purchased themes that break the moment you customize them.

App and application programming interface development

Private apps, webhook pipelines, and third-party connections built on the BigCommerce API. Extend catalog, order, and customer data without brittle workarounds.

Search and navigation

Faceted search, smart filters, and navigation built so buyers find products fast. Faster product discovery lifts add-to-cart and helps your catalog rank.

Subscription and custom functionality

Subscription flows, custom pricing, price lists, and checkout scripts matched to your revenue model. Sell the way your business actually charges, not what the theme allows.

Performance and quality assurance

Core Web Vitals testing, cross-device quality assurance, and a launch checklist that covers redirects, payment gateway validation, and post-launch monitoring. Every store passes before it ships.

Documentation and handover

Codebase documentation, admin training sessions, and a deployment runbook delivered to your team at go-live. You leave the project with full ownership and no dependency on us to maintain it.

Why it works

BigCommerce development built around your revenue model

Speed to revenue

From signed contract to live store in a fixed window

Your go-live date is agreed before code starts. Each sprint ships a testable piece your team can review, approve, or flag. Surprises get caught in staging, not on launch day.

Most builds go live in 8 to 16 weeks. Headless or heavy API projects are scoped separately at discovery.

Project timeline
1
Week 1
Discovery and scope
Tech audit, requirements, sprint plan
2
Weeks 2 to 5
Theme and core build
Stencil theme, catalog, navigation
3
Weeks 6 to 10
Integrations and checkout
Application programming interfaces, enterprise resource planning, payment, custom logic
4
Weeks 12 to 16
Quality assurance, launch, handover
Performance test, go-live, documentation
Platform expertise

Developers who know every corner of BigCommerce

Stencil, Catalyst, the Catalog API, the Price List API, and B2B Edition are not new terrain for your team. They have shipped stores on all of it.

Need headless? We build Next.js and Catalyst frontends on BigCommerce backends. Agencies that spread across ten platforms cannot match that depth.

Ecommerce development team reviewing a newly launched BigCommerce store together on a large monitor
Performance-first builds

Speed, SEO, and conversion built into the spec

Core Web Vitals targets, canonical URLs, and structured data are set in sprint 1, not bolted on later.

Your developers work from performance criteria, not just design. The result is a store that ranks, loads fast, and converts on day one.

Core Web Vitals: staging
Largest Contentful Paint1.4s   Good
Cumulative Layout Shift0.04   Good
Interaction to Next Paint140ms   Needs work
Performance review scheduled: Sprint 5
Integration architecture

Every system connected from day one

Your BigCommerce store does not run in isolation. The integrations your operations team depends on get designed in the architecture stage, not patched into the final sprint. That is how you avoid broken order sync after launch. That is how you avoid broken order sync after launch.

ERP Sync
Orders, inventory
Live
Email Marketing
Klaviyo, custom
Live
Payments
Gateway configuration
In review
Analytics
Google Analytics 4, Google Tag Manager
In progress

Platform-specific proof

From $1M to $3.8M on a custom BigCommerce store

Off Grid Knives — custom store build, Klaviyo lifecycle email, and search-led growth on owned channels. Single-client result, not a portfolio average.

Off Grid KnivesBigCommerce + Klaviyo + SEO

A knife brand in a market with strict advertising rules. Growth relied entirely on organic search, email, and a high-converting storefront.

Revenue growth
$1M
to $3.8M over three years · Off Grid Knives
Store performance
4,200
Stock keeping units migrated and indexed
Primary channel
Custom BigCommerce and Klaviyo
The challenge

The old store could not support the UX research, SEO architecture, or API-driven order processing the brand needed. Manual work capped its scale.

The solution

We built a custom BigCommerce store from real UX research. It shipped with mobile-first performance, API-driven order processing, and a Klaviyo integration that became a primary revenue channel.

"Organic rankings and social presence delivered sustained traffic growth. The store positioned us as a scalable, high-performing brand in a restricted and competitive market."

Off Grid Knives

Store owner packing customer orders after a successful BigCommerce store launch
Result
$3.8M
Off Grid Knives · single-client revenue on BigCommerce

$1M → $3.8M is from the Off Grid Knives engagement only — not typical or average client outcomes. Canonical BigCommerce case study — custom store build, Klaviyo lifecycle email, and search-led growth over three years. See the BigCommerce hub case study or the Off Grid Knives story on our Amazon hub.

Budget guidance

What a BigCommerce development project costs

Investment varies by scope, integration count, and catalog size. Below are honest ranges based on delivered projects.

Standard build
$15K to $40K

Custom theme, core integrations, up to 5,000 SKUs, plus QA and launch support. Typical timeline: 8 to 12 weeks.

  • Stencil theme
  • Up to 3 integrations
  • Quality assurance and launch
Most common
Full-service build
$40K to $100K

Custom theme, complex integrations, app development, B2B features, or subscription commerce. Timeline: 12 to 16 weeks.

  • Custom app development
  • ERP and multi-system APIs
  • Performance and SEO baseline
Enterprise and headless
$100K+

Headless architecture (Catalyst, Next.js), multi-storefront, advanced B2B Edition, and large catalog complexity. Scoped at discovery.

  • Headless and Catalyst frontend
  • Multi-storefront architecture
  • Dedicated project lead
Why Redefine

Specialized paths. No generalist trade-offs.

Most BigCommerce development agencies blend every service into one team and one process. Redefine separates build, app, B2B, headless, and optimization into distinct paths so every project gets the right depth.

FeatureTypical agencyRedefine
Service specialization One team handles all service types Separate specialist paths: build, app, B2B, headless, optimization
Project visibility Weekly status emails Live sprint tracker with deployment pipeline you can log into
Performance baseline Post-launch speed audit Core Web Vitals targets agreed in sprint 1, tested in staging
BigCommerce API depth Standard integrations via apps Custom application programming interface development: Catalog, Price List, Orders, B2B Edition
HandoverStore access transferred Code documentation, admin training, and deployment runbook included
SEO architecture Plugin-based, post-launch URL structure, canonical tags, and structured data built into sprint spec
Common questions

BigCommerce development frequently asked questions

Questions about your project scope, timeline, or what to expect after go-live? Start a strategy call and your project lead will walk through your specific situation.

A full engagement usually includes custom theme development, app integrations, API connections, performance tuning, QA testing, and a coordinated launch. Scope is tailored to your tech stack, catalog size, and growth plan.

Most new BigCommerce store builds take 8 to 16 weeks depending on complexity, number of integrations, and custom feature requirements. A discovery call is the fastest way to scope your specific timeline accurately.

Yes. Our BigCommerce migration services cover data migration, search engine optimization URL preservation, redirect management, and cutover planning. We have migrated stores from a wide range of platforms including legacy custom solutions.

Yes. Our app and API development extends your store's native functionality. We build private apps, connect third-party systems, and design custom API workflows for complex catalog and order needs.

We separate build, app, B2B, headless, and optimization paths so you get a developer with the right depth for your actual goal, not a generalist team. Every project ships with performance baselines, quality assurance sign-off, and a defined go-live checklist.

Start your project

Your BigCommerce development project starts with one brief

Come with a full spec or just a goal. On the call, your project lead scopes the build, estimates the timeline, and walks you through the sprint process. You leave knowing exactly what happens next.

Scoped before work starts · line-by-line pricing · no commitment to receive a proposal

Project type
48-hour response
After brief submission
3-day proposal
Scoped and line-by-line
50+ stores built
BigCommerce builds delivered
You own the code
Full handover at go-live
Ready to build

Your BigCommerce development project starts with one call

Come with a full spec or just a goal. On the call, your project lead scopes the build, estimates the timeline, and walks you through the sprint process. You leave knowing exactly what happens next.

No commitment. No pitch.

$3.8M
Off Grid Knives · single-client revenue (not a portfolio average)
8 to 16
weeks from signed statement of work to live store
0+
BigCommerce stores built and launched
100%
of projects include documented handover

Get on a call with us to see how we can help you

Get a Quote