BigCommerce Development
We design, build, and scale BigCommerce stores that convert — with custom themes, seamless integrations, and optimization that turns browsers into buyers.
80+
Stores Launched
2.4x
Avg. Conversion Lift
24/7
Store Support

Trusted by product teams across industries


















Selected work
Real projects, real results
A snapshot of products, platforms, and brands we've designed and shipped for ambitious companies.
The Law Firm
Website design, brand identity, digital presence
The Paving Company
Website design, lead generation, digital marketing

TaskFlowPro
Cross-platform app, Dashboard design

FitSync
Flutter app, UX/UI, Wearable sync

PixelQuest
Game development, Motion design

FitPulse
iOS app, HealthKit, Analytics
Our BigCommerce Services
BigCommerce Store Design
Custom, conversion-focused storefronts that reflect your brand and guide shoppers smoothly toward checkout.
BigCommerce Theme Development
Bespoke Stencil themes — fast, responsive, and accessible — built to match your brand's visual identity.
Store Migration to BigCommerce
We move your products, customers, and data from Shopify, WooCommerce, Magento, or custom platforms with zero data loss.
App & API Integrations
Payment gateways, ERPs, CRMs, shipping, accounting, and marketing tools — wired into your store with BigCommerce APIs.
Headless Commerce Solutions
Decoupled storefronts powered by BigCommerce's commerce APIs, giving your developers total frontend freedom.
BigCommerce SEO & Optimization
Technical SEO, site speed, and UX optimization that lift rankings and improve conversion rates.
Have a project in mind?
Share your goals and we'll map out the fastest, most reliable path to ship them — with a clear scope, timeline, and estimate.
Start a conversationAbout Our BigCommerce Development
As a BigCommerce development agency, Nexstack Solutions helps growing brands launch and scale profitable online stores. From custom theme design to complex API integrations and migrations, we combine deep BigCommerce expertise with a merchant-first mindset — so your store performs beautifully and runs without friction.

Our BigCommerce Development Process
A proven process for delivering high-performing BigCommerce stores.

Discovery & Strategy
We review your products, audience, and goals to define a store strategy and feature roadmap.
UX & Visual Design
Wireframes and high-fidelity mockups shape a storefront designed for clarity and conversion.
Theme & Feature Development
We build your Stencil theme and custom features, integrating the tools your business relies on.
Migration & Data Setup
Products, customers, and order history are migrated carefully with verification at every step.
Launch & Post-Launch Optimization
We launch, monitor performance, and continuously optimize SEO, speed, and conversion.
Where we work
Industries we serve
Deep experience across the sectors shaping today's digital economy.
Top Web Development Agency
Clutch 2025
Best Mobile App Developers
DesignRush 2025
Rising Stars of Software
GoodFirms 2025
Top Rated SEO Agency
Bark 2025
Client voices
What our clients say
“Nexstack took our half-finished idea and shipped a polished product in weeks. Their team communicated clearly at every stage and the final result exceeded what we imagined.”
Ayesha Khan
Founder, TaskFlowPro
“The redesigned store paid for itself within the first quarter. Conversion-focused design and fast performance made an immediate, measurable difference to our revenue.”
Daniel Okafor
COO, StyleNest
“Rare to find a partner that handles strategy, design, and engineering under one roof. Our SEO-driven growth finally became predictable and sustainable.”
Marcus Lindqvist
Growth Lead, BrightTech
“From the first wireframe to launch, Nexstack kept us in the loop and delivered on time. The mobile app they built feels effortless — our users noticed immediately.”
Sara Mahmood
Product Manager, FitPulse
“They rebuilt our entire platform for a global audience without losing any performance. Localization, architecture, and UX — all handled with real care.”
Lucas Moreau
CTO, GlobalReach
FAQs
Frequently Asked Questions About BigCommerce Development
Why choose BigCommerce over Shopify or WooCommerce?
Can you migrate our existing store to BigCommerce?
How long does a BigCommerce build take?
Do you support B2B stores on BigCommerce?
Ready to launch or scale your BigCommerce store?
Talk to our BigCommerce specialists and get a tailored plan for your online store.
Let's talk