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.

Most builds die in the gap between spec and launch
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.
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.
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.
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.
Clean API architecture, documented integrations, and a codebase your team can maintain. No technical debt twelve months from now.
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.
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.
BigCommerce development built around your revenue model
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.
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.

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.
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.
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.
A knife brand in a market with strict advertising rules. Growth relied entirely on organic search, email, and a high-converting storefront.
The old store could not support the UX research, SEO architecture, or API-driven order processing the brand needed. Manual work capped its scale.
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

$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.
What a BigCommerce development project costs
Investment varies by scope, integration count, and catalog size. Below are honest ranges based on delivered projects.
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
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
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
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.
| Feature | Typical agency | Redefine |
|---|---|---|
| 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 |
| Handover | Store 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 |
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.
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
Brief received. We will review your workflow and send a scoped proposal within 3 business days.
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.