Build · E-commerce Development

Online stores that turn browsers into orders.

Custom storefronts, UPI checkout and inventory that stays in sync with your shop, built by the team behind CityXmart's 41-second WhatsApp checkout.

E-commerce Development interface
Service line
Build
Core stack
Next.js, React, TypeScript
Cadence
Two-week sprints, demo every Friday
Pricing
Fixed per milestone

Sound familiar? Here's what changes.

  1. Today

    Checkout that loses customers

    Too many steps, forced sign-ups and payment pages that time out on mobile data mean carts get abandoned at the last step.

    After we ship

    Short, mobile-first checkout with UPI as the first option.

  2. Today

    Stock that's never right

    The website says in stock, the shelf says otherwise. Someone spends every morning reconciling orders by hand.

    After we ship

    Inventory synced between your store, warehouse and website.

  3. Today

    Marketplace fees eating margins

    Selling only on marketplaces means their commission on every order and no direct relationship with repeat customers.

    After we ship

    Your own store and customer list, alongside the marketplaces.

E-commerce Development, engineered for production.

Online stores and ordering flows with UPI checkout and WhatsApp alerts.

  1. Custom storefronts interface

    Custom storefronts

    Fast product pages, search and filters designed around how your customers shop.

  2. WhatsApp ordering interface

    WhatsApp ordering

    Catalogue, cart and payment inside WhatsApp for customers who'd rather chat.

  • UPI-first checkout

    UPI, cards and cash on delivery, with automatic payment reconciliation.

  • Inventory & orders

    Stock, orders, returns and invoices in one back office for your team.

  • Delivery & tracking

    Delivery slots, courier integrations and order status updates customers can follow.

  • Offers & loyalty

    Coupons, referral codes and repeat-order nudges that bring customers back.

Included in every build

No extra line items.

  • UPI, card and COD checkout
  • GST-ready invoices on every order
  • Order alerts on WhatsApp for the owner
  • Inventory sync across locations
  • SEO-friendly product pages
  • Coupons and referral codes
  • Abandoned-cart reminders
  • Sales reports by product and day
E-commerce Development interface

Proven tools, chosen for the long run.

Typed, documented and widely used, so your in-house team or any future vendor can take over without friction.

Storefront
Next.jsReactTypeScriptTailwind CSS
Backend
Node.jsPostgreSQLRedisSearch indexing
Payments
UPI payment gatewaysCard paymentsCash on deliveryBank webhooks
Integrations
WhatsApp Business APICourier APIsAccounting exports

Four steps. No surprises.

The same engagement on every project: scoped in writing, priced per milestone, shipped in the open.

  1. Step 1: Scope

    Scoping call

    We walk through your catalogue, delivery model and payment mix, and how orders are handled in the shop today.

  2. Step 2: Fixed quote

    Within 24 hrs

    A fixed price per milestone: storefront, checkout, back office and launch, agreed in writing.

  3. Step 3: Two-week sprints

    Demo every Friday

    A working staging store from the first sprint. Every Friday you can place test orders on the latest build.

  4. Step 4: Launch & support

    Post-launch warranty

    We import your catalogue, go live, watch the first orders closely and stay on under the post-launch warranty.

store-console · ordersLive
Order StreamUPI Reconciled
  • Order #1042 paid via UPIReconciled automatically · owner alerted1m ago
  • Order #1039 packedDelivery slot 4-6 PM12m ago
  • Stock updatedStore and website counts match20m ago
Mobile-First Checkout · 0 simulated

Every order, from cart to doorstep, in one stream.

Payments reconcile themselves, the owner gets a WhatsApp alert for every paid order, and the team packs from a live queue instead of a notebook.

  • Payment matched to order automatically
  • Owner alerts on WhatsApp
  • Stock that updates the moment an order lands

Illustrative interface. Events stream while it is on screen.

Built by this team, running in production.

Conversational CommerceLive in production

CityXmart: a 41-second WhatsApp checkout

Customers browse the catalogue, fill a cart and pay by UPI without leaving WhatsApp. The store owner gets an alert the moment an order is paid.

  • Product catalogue and cart inside the chat
  • UPI payment reconciliation via bank webhooks
  • Owner alerts and human handoff for edge cases
Read the case study
CityXmart: a 41-second WhatsApp checkout
Order to paid
41 Sec
App install
0 MB

StackMeta WhatsApp Business API / UPI webhooks / Node.js / PostgreSQL

E-commerce Development FAQ

Questions, answered plainly.

What founders usually ask before starting a e-commerce development project.

Something else? Ask an engineer

  • For a simple catalogue, Shopify is often the right answer and we'll say so. Custom makes sense when you need UPI-first checkout, WhatsApp ordering, multi-location stock or workflows a plugin can't handle, and when monthly app fees start adding up.

  • Yes. We built CityXmart's WhatsApp checkout, where customers go from chat to paid in 41 seconds. It can run alongside your website on the same inventory.

  • UPI, cards, net banking and cash on delivery through Indian payment gateways, with automatic reconciliation so every payment is matched to its order.

  • Yes. We move your products, customers and order history, and set up redirects so your search rankings carry over.

  • You do. The code, the database and every customer record belong to your company, with no platform lock-in.

Next step

Tell us what you're building.

A senior engineer reads every brief. You get a written scope with a fixed price per milestone, usually within a day.

Written scope
Within 24 hours
Pricing
Fixed per milestone
Ownership
100% of code and IP