Blog & Insights
Engineering insights, best practices, and technology guides from the SIMA DigiTech team.
Designing a Scalable E-Commerce Checkout
Order state machines, idempotency, and reservation logic for a checkout that handles real payments.
Payment Gateway Integration Architecture
Webhooks, idempotency keys, and reconciliation for robust payment gateway integration.
E-Commerce Product Catalog Design
Modeling products, variants, categories, and attributes for a flexible, searchable catalog.
Inventory Reservation and Distributed Management
Prevent overselling with reservation patterns and consistent inventory across channels.
Order State Machines and Lifecycles
Model order lifecycles as explicit state machines to avoid impossible states and subtle bugs.
E-Commerce Database Design
A solid relational schema for products, orders, customers, and payments with correct constraints.
E-Commerce Caching Strategies
Cache catalogs, pricing, and pages without serving stale prices or stock to customers.
Handling Flash Sales and Traffic Spikes
Queueing, throttling, and cache-first patterns to survive sudden traffic spikes.
Multi-Vendor Marketplace Architecture
Vendor onboarding, split payments, and the data model behind a multi-vendor marketplace.
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