Custom Shopify stores built for speed, conversions, and growth. From stunning theme development to Shopify Plus migrations — we turn browsers into buyers and brands into empires.
A Shopify development agency in California builds, migrates, and optimizes Shopify and Shopify Plus stores for D2C and B2B brands - covering custom theme design, app and API integrations, checkout and conversion optimization, and ongoing store maintenance. BTPL Soft works as a Shopify development agency California brands trust for launches, replatforming, and post-launch growth across the state's retail, fashion, beauty, and consumer goods sectors.
Running a Shopify store in California means competing against some of the most design-literate, conversion-obsessed D2C brands in the country. A generic theme with a few tweaks won't hold up against competitors who treat their storefront like a product in its own right.
From first theme file to post-launch optimization, this is the full scope a Shopify development agency US merchants need under one roof instead of stitched together across freelancers.
Pixel-perfect Shopify themes built from scratch with Liquid, Tailwind, and headless architectures. Fully responsive, blazing-fast, and designed to match your brand identity - not a template. This is where most of the difference between a template install and a true Shopify development agency California brands can point to shows up first.
Seamless migrations from WooCommerce, Magento, or legacy platforms to Shopify Plus with zero data loss and minimal downtime. Migrations are usually where a generic freelancer and a real Shopify development agency California enterprise brands trust part ways - data integrity and SEO preservation aren't optional here.
Connect your Shopify store with CRMs, ERPs, payment gateways, shipping providers, marketing platforms, and third-party applications. We build secure API integrations that automate workflows, improve efficiency, and create a seamless shopping experience.
Every integration above is one we've shipped into a live store - not a badge we added because it looks good on a services page.
Shopify
Stripe
PayPal
Razorpay
Mailchimp
Google
Analytics
Meta
Pixel
HubSpot
Zapier
WooCommerce
Klaviyo
Salesforce
NetSuite
SAP
ShipStation
Zendesk
Gorgias
Yotpo
Omnisend
BigCommerceWhether you're launching your first store or scaling to millions, we have a plan that fits. Pricing stays project-based rather than a flat retainer, because a Starter Store and an Enterprise Plus build genuinely don't cost the same to do right - a rate card any honest Shopify development agency California founders talk to should be upfront about from the first call.
Perfect for new D2C brands
For scaling brands with custom needs
Shopify Plus with full customization
Every pixel, every interaction, every page load is optimized for one thing - getting your customer to click "Buy Now." It's the standard that's kept us busy as a Shopify development agency California retail, beauty, and fashion brands keep referring to other founders.
D2C and B2B brands across Los Angeles, San Francisco, San Diego, Sacramento, and Silicon Valley have launched or migrated Shopify stores with BTPL Soft, with combined GMV of over $50M managed through the stores we've built.
Flawless experience across all devices
Blazing fast with 89+ PageSpeed score
Enterprise-grade reliability always
Abandoned cart recovery rate
Retail, fashion, beauty, wellness, and consumer packaged goods brands make up most of the stores we've launched, and each category converts differently - a beauty subscription flow has almost nothing in common with a furniture store's shipping logic. As a Shopify development agency California CPG and fashion brands specifically hire for that reason, we build the store logic around how your category actually sells, not a generic e-commerce template.
Custom sizing charts, lookbooks, collection filtering & fast mobile checkout.
Subscription flows, shade finders, product bundles & recurring orders.
Bulk purchasing, subscription boxes & automated fulfillment workflows.
Custom shipping rules, AR product previews & high-ticket checkout flows.
A proven 6-step workflow that gets your Shopify store live - fast, polished, and ready to sell. This is the same process behind every store we point to when a prospective client asks what actually makes us a Shopify development agency California brands stick with past launch day.
Understand your brand, products, audience & business goals.
Wireframes, UI mockups & brand-aligned visual direction.
Liquid theme coding, app integrations & data migration.
Cross-browser QA, checkout flow testing & performance audits.
DNS migration, go-live checklist & real-time monitoring.
CRO, marketing integrations & ongoing optimization.
Everything you need to know about our Shopify development services, timelines, and support plans.
A standard custom Shopify store takes 4–8 weeks. Complex Shopify Plus builds with custom apps and migrations can take 8–14 weeks. We provide a detailed timeline during the discovery phase.
Yes — we handle full migrations from WooCommerce, Magento, BigCommerce, Squarespace, and custom platforms. All products, customers, orders, and SEO URLs are preserved with proper 301 redirects.
Absolutely. We build private and public Shopify apps using the Admin API, Storefront API, and Shopify Functions. From custom discount engines to bespoke fulfilment workflows.