FLASH-SALE RESILIENT · LOCAL GATEWAYS (BKASH/NAGAD) · ZERO PRICE TAMPERING

E-Commerce Stores That Scale Under Traffic.

Stop losing orders to checkout crashes during marketing campaigns. We engineer robust headless and custom e-commerce stores with sub-second speeds, automated courier sync, and bulletproof payment reconciliation.

TheWebSolve digital commerce engineering team optimizing high-throughput transactional conversion architectures
CHALLENGES SOLVED

Why Traditional Online Stores Crash

Campaign Concurrency Freezes

Database table locks during influencer marketing drops or seasonal sales that crash MySQL and cause 70%+ cart drop-offs.

Orphaned Payment Charges

Customers debited via bKash or card, but interrupted network redirects prevent the order from generating in your warehouse.

Client-Side Price Manipulation

Malicious shoppers altering DOM payloads to buy premium products for ৳1 due to missing server-side price validation.

Manual Courier & Shipping Headaches

Operations staff manually copying order addresses into sheets, or wrestling with disconnected courier portals (DHL, FedEx, Pathao, Steadfast), causing delivery delays.

PRODUCTION DELIVERABLES

What You Receive in Every Store Build

Engineered for high velocity transactions and effortless back-office operations.

Local & Global Payment Gateways

Native bKash Tokenized Checkout, Nagad Direct Pay, SSLCommerz, Wise, PayPal, Payoneer, and Bank Wire (SWIFT) with idempotent webhook reconciliation.

Flash-Sale High Concurrency Architecture

In-memory Redis object caching and indexed database read replicas engineered to absorb 20,000+ live simultaneous visitors.

Global & Regional Automated Courier Setup

Automated parcel consignment via DHL Express, FedEx, UPS, Aramex, as well as Pathao, RedX, and Steadfast with real-time tracking and SMS alerts.

Server-Side Pricing Hardening

Zero client-side price reliance. Every discount, tax, coupon code, and shipping fee is recalculated cryptographically on the server.

Inventory & Multi-Outlet Management

Real-time stock reservation during checkout to prevent overselling, with low-stock alerts and CSV bulk import/export.

Conversion-Engineered Checkout Funnel

Frictionless 1-step mobile checkout with phone number autofill, district-based delivery rules, and guest purchase support.

ENGINEERING LIFECYCLE

From Catalog Architecture to Go-Live

01

E-Commerce Discovery

SKU catalog modeling, payment gateways, courier APIs, and tax/shipping logic specification.

02

UX & Checkout Design

Mobile-first product pages, cart drawers, and frictionless 1-page checkout prototyping.

03

Full-Stack Engineering

Laravel / Headless core build, payment webhook reconciliation, and automated stock rules.

04

Load Testing & Pentest

Simulating 10,000 concurrent cart updates and testing payment tampering vectors.

05

Live Launch

DNS switch, merchant account verification, live transaction checks, and warehouse training.

TECH ARSENAL

E-Commerce Engineering Frameworks

Laravel Vue.js / React MySQL / PostgreSQL Redis Cache bKash Tokenized API Nagad API Wise / PayPal / Payoneer DHL / FedEx / UPS APIs SSLCommerz WooCommerce Hardened
ENGAGEMENT MODELS

Custom Scoping Based on Order Velocity

Whether you need a streamlined starter store or an enterprise custom engine handling tens of thousands of daily transactions, we deliver fixed-price milestone proposals with guaranteed delivery dates.

FREQUENTLY ASKED

E-Commerce FAQ

Which payment gateways can you integrate? +

We natively support international payment systems including Wise, PayPal, Payoneer, and SWIFT bank wire, as well as regional gateways: bKash Tokenized Checkout (one-click customer payments), Nagad Direct, Rocket, Upay, and SSLCommerz.

Can you connect our store to international and local courier services? +

Yes. We integrate directly with international carriers (DHL Express, FedEx, UPS, Aramex) for cross-border shipping, as well as regional courier networks (Pathao Courier, Steadfast, RedX). Orders can automatically generate international waybills, tracking numbers, and printable shipping labels directly from your store admin.

How do you prevent payment drops when mobile networks lag? +

We use asynchronous server-to-server webhook reconciliation with idempotent transaction keys. Even if a customer closes their mobile browser while bKash deducts the balance, our server validates the transaction in the background and safely completes the order.

Will our store crash if thousands of people buy at the same time? +

No. We design high-concurrency database queues and Redis caching layers specifically to withstand heavy flash sale traffic without resource starvation or deadlocks.

Ready to Build an E-Commerce Engine That Doesn't Crash?

Let’s analyze your catalog, payment gateways, and delivery requirements together.