Dev4ager builds custom e-commerce systems: fast storefronts, optimized checkouts, payments, shipping, and order admin, for brands whose catalog, pricing, or workflows need more than a template. We also build on Shopify when that's the honest answer.
What we build
Every 100ms of load time and every extra checkout field costs you orders. We treat the storefront as a performance product and the backend as an ops tool, because a store that converts but can't fulfill is just a complaint generator.
- Storefronts with sub-second product pages and clean search/filtering
- Checkout flows engineered for fewer steps and fewer surprises
- Stripe payments plus regional gateways; taxes and invoices handled
- Shipping integrations: live rates, labels, tracking notifications
- Inventory, orders, refunds, and discounts in one admin
- Abandoned-cart recovery and lifecycle email hooks
How we build it
- Scope. Catalog shape, pricing rules, and fulfillment flow first, then a fixed quote.
- Design. Product page and checkout get the most design attention; they earn the money.
- Build + review. AI-assisted build; payment and inventory paths get senior review and extra tests.
- Ship + measure. Launch with analytics wired to funnel steps, then optimize on data.
Stack we reach for
Next.js TypeScript Stripe Supabase PostgreSQL Shopify APIs Vercel
A great fit if…
- Your catalog, bundles, or B2B pricing rules fight every platform you try.
- App subscription fees on your current store now rival a developer's day rate.
- The store is one surface of a bigger product: memberships, subscriptions, community.
E-commerce FAQs
Should we build custom e-commerce or use Shopify?
Shopify wins for standard retail, and we build on it happily. Go custom when your catalog, pricing, subscriptions, or B2B flows fight the platform, when app fees stack up, or when the store is part of a bigger product. We'll tell you honestly which side you're on.
Can you migrate our existing store?
Yes: products, customers, and order history, with 301 redirects for every URL so your SEO survives the move. We run old and new in parallel until cutover day.
Which payment and shipping providers do you integrate?
Stripe first for payments (plus regional gateways where needed, see payment integration), and shipping via carrier APIs or aggregators: live rates, label generation, and tracking updates pushed to customers automatically.
What do you actually do differently for conversion?
Speed (sub-second product pages), fewer checkout steps, honest shipping costs shown early, mobile-first flows, and abandoned-cart recovery. Conversion is engineering plus copy discipline, not a plugin.
Related
Shopify & Webflow Payment Integration Performance Guide: Build costs
Store underperforming, or not built yet?
Tell us what you sell and how fulfillment works. Fixed scope and quote within 48 hours.
Build My Store